Confidential
Transcription
Confidential
Confidential Service manual TM-U200 Series (Type B) Issued date , , Issued by English 400852401 EPSON EPSON SEIKO EPSON CORPORATION Printed in Japan Confidential TM-U200 Series (Type B) Service Manual Revision Table Rev. Page Description Rev. A all pages Newly authorized Rev. B 1-1, 1-20, 2-13, 2-14, 2-15, 2-20, 2-23, 2-24, 2-25, A-6, A-7, A-8, A-9, A-13, A-14, A-15, A-16, A-17, A-22, A-23, Addendum 1 Revision due to main circuit board modification (See Addendum 1 for detail description). 5-45, 5-46, A-22, A-23, Addendum 2 Revision due to lower plate modification and deletion of ROM spacer (See Addendum 2 for detail description). 5-37, 5-38, A-22, A-23, Addendum 3 Revision due to release lever addition (See Addendum 3 for detail description). All pages Printed “Confidential” mark Revision Table i Confidential ii Revision Table Confidential TM-U200 Series (Type B) Service Manual CONFIDENTIALITY AGREEMENT BY USING THIS DOCUMENT, YOU AGREE TO ABIDE BY THE TERMS OF THIS AGREEMENT. PLEASE RETURN THIS DOCUMENT IMMEDIATELY IF YOU DO NOT AGREE TO THESE TERMS. ❏ This document contains confidential, proprietary information of Seiko Epson Corporation or its affiliates. You must keep such information confidential. If the user is a business entity or organization, you must limit disclosure to those of your employees, agents and contractors who have a need to know and who are also bound by obligations of confidentiality. ❏ On the earlier of (a) termination of your relationship with Seiko Epson, or (b) Seiko Epson’s request, you must stop using the confidential information. You must then return or destroy the information, as directed by Seiko Epson. ❏ If a court, arbitrator, government agency or the like orders you to disclose any confidential information, you must immediately notify Seiko Epson. You agree to give Seiko Epson reasonable cooperation and assistance in the negotiation. ❏ You may use confidential information only for the purpose of operating or servicing the products to which the document relates, unless you obtain the prior written consent of Seiko Epson for some other use. ❏ Seiko Epson warrants that it has the right to disclose the confidential information. SEIKO EPSON MAKES NO OTHER WARRANTIES CONCERNING THE CONFIDENTIAL INFORMATION OR ANY OTHER INFORMATION ON THE DOCUMENT, INCLUDING (WITHOUT LIMITATION) ANY WARRANTY OF TITLE OR NON-INFRINGEMENT. Seiko Epson has no liability for loss or damage arising from or relating to your use of or reliance on the information on the document. ❏ You may not reproduce, store or transmit the confidential information in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of Seiko Epson. ❏ Your obligations under this Agreement are in addition to any other legal obligations. Seiko Epson does not waive any right under this Agreement by failing to exercise it. The laws of Japan apply to this Agreement. ❏ No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of Seiko Epson Corporation. ❏ The contents of this document are subject to change without notice. Please contact us for the latest information. ❏ While every precaution has been taken in the preparation of this document, Seiko Epson Corporation assumes no responsibility for errors or omissions. ❏ Neither is any liability assumed for damages resulting from the use of the information contained herein. ❏ Neither Seiko Epson Corporation nor its affiliates shall be liable to the purchaser of this product or third parties for damages, losses, costs, or expenses incurred by the purchaser or third parties as a result of: accident, misuse, or abuse of this product or unauthorized modifications, repairs, or alterations to this product, or (excluding theU. S.) failure to strictly comply with Seiko Epson Corporation’s operating and maintenance instructions. ❏ Seiko Epson Corporation shall not be liable against any damages or problems arising from the use of any options or any consumable products other than those designated as Original EPSON Products or EPSON Approved Products by Seiko Epson Corporation. Cautions EPSON® and ESC/POS® are registered trademarks of Seiko Epson Corporation Rev. B i Confidential Key to Symbols The symbols in this manual are identified by their level of importance, as defined below. Read the following carefully before handling the product. CAUTION: Observe cautions to avoid minor injury to your self, damage to your equipment, or loss of data. Note: Notes have important information and useful tips on the operation of your equipment. Safety Precautions on Maintenance/Repair/Inspection WARNING: Be sure to use the designated type of fuse for the circuit board. Use of a different type may result in fire. Remove the power cord and all other cables from this product before disassembly or reassembly to prevent electrical shock. To prevent the possibility of electrical shock, do not perform maintenance, repair, or inspection during a thunder storm. ii Rev. B Confidential TM-U200 Series (Type B) Service Manual CAUTION: Wear a grounded wrist band when handling the internal circuit boards to prevent damage from static electricity. When removing an internal circuit board, place it on an anti-static rubber sheet or similar surface to prevent damage from static electricity. Parts on the circuit board may become hot during operation. Therefore, wait approximately 10 minutes after turning the power off before touching them. Be careful not to subject the circuit boards to shock or vibration, because this may damage them. Do not touch the circuit board or cable terminals with your hands to prevent contamination that may result in a malfunction. Do not use an alcohol, benzine, thinner, trichloroethylene, or ketone-based solvent to clean the parts. This type of solvent may damage the plastic and rubber parts. Wipe off any dirt with a dry or slightly moist cloth. Be sure to remove the power cord from the outlet at this time. Note that the print head and the paper feed motors become very hot during normal operation, creating the danger of burn injury. Be sure to wait for about 10 minutes after turning printer power off before begining the maintenance, repair, or inspection. Modular Connector The following label is visible near the modular connector (drawer kick-out connector) on the back of this product. Use modular connector specifically designed for cash drawers for this product. Do not connect this connector to an ordinary telephone line. Rev. B iii Confidential CONTENTS Chapter 1 Features and General Specifications Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Printing Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Character Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Auto Cutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Paper Roll Supply Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Receive Buffer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Ribbon Cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 External Dimensions and Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Printer Installation Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 Main Unit Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Paper Feed Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Carriage Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Print Head Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Home Position Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 Paper End Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 Paper Roll Near-end Detector (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10 Power Supply Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 Drawer Kick-Out Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 RS-232 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13 RS-485 Serial Interface (option) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 IEEE 1284 Parallel Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16 Buttons and Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 Panel Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19 DIP Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20 Error Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 Printer Operation When an Error Occurs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 Data Receive Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 Buffer Full Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 Detectors and Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21 Hexadecimal Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22 Performing a Hexadecimal Dump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22 Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22 External Power Supply PS-170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23 Chapter 2 Mechanism Configuration and Operating Principles Printer Mechanism Operating Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Print mechanism unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Print head unit movement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Wire movement when a single dot is printed . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Printing a character (9x9 font) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Paper Feed Mechanism Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5 Paper loading (semi-automatic loading) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 iv Rev. B Confidential TM-U200 Series (Type B) Service Manual Paper feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ribbon Feed Mechanism Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ribbon feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Detection Mechanism Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Home position detection mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Paper detection mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Paper roll near-end detection mechanism (optional) . . . . . . . . . . . . . . . . . . . . Auto-cutter mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ribbon Switch Mechanism Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Switching from Black to Red . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Releasing from Red to Black . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Electrical Circuitry Operating Principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hardware Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Principles of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Supply Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Control Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Various detector circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Host interface circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Drawer kick-out drive circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DIP switch read circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer Mechanism Driver Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Print head driver circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Carriage motor driver circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto-cutter driver circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6 2-7 2-8 2-9 2-9 2-10 2-10 2-10 2-11 2-11 2-11 2-12 2-12 2-16 2-16 2-17 2-18 2-21 2-22 2-22 2-23 2-26 2-26 2-27 2-28 Chapter 3 Handling and Maintenance Handling Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Use Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Paper Handling Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ribbon Cassette Handling Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replacing the Paper Roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replacing the Ribbon Cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Removing Jammed Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Using the Power Switch Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inspection and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standard Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lubrication Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tool List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 3-1 3-1 3-1 3-2 3-2 3-5 3-7 3-12 3-13 3-13 3-14 3-14 3-14 3-14 3-15 3-15 Chapter 4 Troubleshooting Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Initiating the Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Self-test Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ending the Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting Flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Troubleshooting Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Error Types and Countermeasures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rev. B 4-1 4-1 4-1 4-1 4-2 4-9 4-15 v Confidential Chapter 5 Disassembly, Assembly, and Adjustment Small Part Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Removing the fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2 Removing the print head unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3 Removing the auto-cutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Removing the main circuit board assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 Sub-assembly A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Paper feed frame unit assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8 Main Assembly 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12 Ribbon switch lever, ribbon release spring, ribbon release lever, ribbon intermediate gear, ribbon transmission gear, ribbon take-up assembly, and ribbon drive plate assembly . . . . . . . . . 5-12 Main Assembly 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14 Tension plate assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14 Main Assembly 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14 Paper feed frame assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14 Main Assembly 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15 Carriage motor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15 Main Assembly 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16 Carriage sub assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-16 Main Assembly 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17 Carriage shaft assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17 Main Assembly 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18 Adjustment roller shaft holder assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18 Main Assembly 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19 Carriage guide shaft assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19 Main Assembly 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19 Belt tension spring assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19 Main Assembly 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20 Sensor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20 Main Assembly 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21 Carriage motor heat sink assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-21 Main Assembly 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22 Print head FPC assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22 Main Assembly 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23 Print head unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23 Main assembly 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24 Left cover fixing plate and right cover fixing plate . . . . . . . . . . . . . . . . . . . . . . 5-24 Main Assembly 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26 Ribbon frame earth plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26 Main Assembly 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26 Ribbon frame assembly, ribbon frame spring, and ribbon frame fixing plate 5-26 Main Assembly 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28 Thumb-screw and head cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28 Main Assembly 1 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29 Lower cutter plate assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-29 Main Assembly 2 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30 Upper plate assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30 Main Assembly 3 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31 Main circuit board assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-31 Main Assembly 4 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33 Inserting the cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33 Main Assembly 5 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33 Lower case assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-33 Main Assembly 6 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-35 Manual cutter assembly and auto-cutter fixing plate . . . . . . . . . . . . . . . . . . . . 5-35 vi Rev. B Confidential TM-U200 Series (Type B) Service Manual Main Assembly 7 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37 Auto-cutter assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-37 Main Assembly 8 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-40 Paper roll receive rollers, upper case, guide roller, and switch panel assemblies 5-40 Main Assembly 9 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43 Interface circuit board assembly and connector plate . . . . . . . . . . . . . . . . . . . 5-43 Main Assembly 10 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-45 Lower plate, ROM cover, and rubber foot assembly . . . . . . . . . . . . . . . . . . . . 5-45 Main Assembly 11 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-46 Main cover assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-46 Main Assembly 12 (Case Unit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-47 Near-end detector assembly (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-47 Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-50 Platen gap adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-50 Appendix RS-485 Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . XON/XOFF Transmission Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data Format When Using RS-485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Main circuit board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RS-232 Serial Interface Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IEEE 1284 Parallel Interface Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RS-485 Serial Interface Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Circuit Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Main Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RS-232 Serial Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IEEE 1284 Parallel Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RS-485 Serial Interface Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer Mechanism Unit Overall Exploded Diagram . . . . . . . . . . . . . . . . . . . . . . . . Case Unit Overall Exploded Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Case Unit Overall Exploded Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Printer Mechanism Unit Lubrication Points Diagram . . . . . . . . . . . . . . . . . . . . . . . Case Unit Lubrication Points Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1 A-4 A-4 A-6 A-6 A-10 A-11 A-12 A-13 A-13 A-18 A-19 A-20 A-21 A-22 A-23 A-24 A-25 Addendum 1 Main Circuit Board Types and Maintenance Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 EP-ROM equipped main circuit board no longer used in ANK font model 1 Number of switches in DIP switch set DSW2 changed in ANK font model 1 Function assignment of 8-switch DIP switch set DSW2 changed in ANK font model 2 Servicing Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Using the correct main circuit board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Using the correct DIP switch setting table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Using the correct circuit diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Addendum 2 Lower Plate Change and ROM Spacer Abolition Description of Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Servicing Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Addendum 3 Auto-Cutter Release Tab Change Description of Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Assembly Procedure Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Spare Parts Supply Unit Change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Rev. B vii Confidential Introduction TM-U200 Series (Type B) printers are one-station printers for ECR and POS use that can print the results of weighing or measuring. The main features of the TM-U200 Series (Type B) printers are the following: ❏ High-speed printing through logic-seeking control ❏ Excellent reliability and long life resulting from the use of two stepping motors, one for moving the carriage and one for paper feeding ❏ Flexible paper feed setting permits printing in accordance with any user-defined format ❏ Command protocol based on ESC/POS, a widely used standard ❏ Built-in drawer kick-out interface provides capability to drive two drawers ❏ Selectable character fonts (7 x 9, 9 x 9) ❏ Semi-automatic paper loading capability ❏ AC adapter (included) provides compact power supply ❏ Compact and light in weight ❏ Automatic Status Back (ASB) function to automatically send printer status changes ❏ Auto-cutter euipped ❏ Two-color printing: black and red are selectable. viii Introduction Rev. B Confidential TM-U200 Series (Type B) Service Manual Chapter 1 Features and General Specifications FEED button ERROR LED Power switch POWER LED PAPER OUT LED (PAPER OUT/PRESS FEED) PROM Power supply connector Drawer kick-out connector Frame ground screw DIP switch bank 1 Interface connector Frame ground screw DIP switch bank 2 (*) (*) There are three kinds of DIP switch bank 2. See Addendum 1 of this manual for more details. Figure 1-1 TM-U200 Series (Type B) appearance Rev. B Features and General Specifications 1-1 Confidential Features Printing Specifications Printing method: Serial impact dot-matrix Head wire configuration: 9-pin serial type 0.353 mm (0.014") 0.29 mm (0.01") (wire diameter) 0.317 mm (0.012") Figure 1-2 Dot configuration Dot pitch: 0.353 mm (1/72") Dot wire diameter 0.29 mm (0.01") Printing direction: Bidirectional with logic seeking Printing width: 63.34 mm (2.49") Line feed: 4.233 mm (1/6"): default setting Programmable in units of 1/144 inch by using commands. Paper feed method Friction feed Paper feed speed: Approximately 4.17 inches/second (25 lines/second) during continuous paper feeding Characters per line: See the table on the next page. Characters per inch: See the table on the next page. Total dot count (horizontal direction) 7 x 9 font: 400 half-dot positions per line 9 x 9 font: 400 half-dot positions per line Print speed Approximately 3.5 lines/second (40 columns, 16 cpi) Approximately 6.4 lines/second (16 columns, 16 cpi) NOTE:If the print duty ratio is too high, the operation of the print head is stopped by the duty limit. In such circumstances, the print speeds shown above cannot be guaranteed. cpi = characters per inch. 1-2 Features and General Specifications Rev. B Confidential TM-U200 Series (Type B) Service Manual Character dimensions, characters per inch, characters per line Character Structure Horizontal x Vertical Character Structure Character Set Character Dimensions WxH Dot Spacing Between Characters Characters Per Line (cpl) Characters Per Inch (cpi) 7x9 ANK 1.2 x 3.1 mm (.047 x .122") 3 half dots 40 16 Graphics 1.7 x 3.1 mm (.070 x .122") 0 40 16 ANK 1.6 x 3.1 mm (.063 x .122") 3 half dots 33 13.3 Graphics 2.0 x 3.1 mm (.079 x .122") 0 33 13.3 ANK 1.2 x 3.1 mm (.047 x .122") 2 half dots 42 17.8 Graphics 1.6 x 3.1 mm (.063 x .122") 0 42 17.8 ANK 1.6 x 3.1 mm (.063 x .122") 2 half dots 35 14.5 Graphics 1.9 x 3.1 mm (.075 x .122") 0 35 14.5 9x9 7x9 9x9 NOTE: The default font is 7 x 9; the dot spacing between characters is either 3 half dots or 2 half dots, depending on the setting of DIP switch 2-1. Character Specifications Character sets: Alphanumeric: 95 International: 32 Graphics: 128 x 8 pages Character structure: 7 x 9 with 400 half-dot positions per line 9 x 9 with 400 half-dot positions per line 1.24 mm (0.049") 1.59 mm (0.063") 0.353 mm (0.014") 2.4 mm (0.094") 3.1 mm (0.122") 0.159 mm (0.006") Figure 1-3 Character size (7 x 9 font example) Rev. B Features and General Specifications 1-3 Confidential Paper Paper types: Paper roll: Paper roll width: 76 ± 0.5 mm (2.99 ± .020") Paper roll maximum diameter: 83 mm (3.27") Paper roll core: Unless there is an optional near-end detector, you cannot use a paper roll with the core and paper glued together. Normal paper: Thickness: Weight: Pressure-sensitive paper Original sheet + up to 1 copy sheet Thickness: 1 sheet: 0.05 to 0.08 mm (.0020 to .0031") Total thickness: 0.2 mm (.0079") or less Recommended paper: Mitsubishi - carbonless paper (blue) Top and middle sheets: N40Hi paper thickness: 0.06 mm (.0024") weight: 47.2 g/m2 (12.6 lb) Bottom sheet: N60 paper thickness: 0.08 mm (.0031") weight: 68.0 g/m2 (18.1 lb) Plain paper or pressure-sensitive paper 1 sheet: 0.06 to 0.085 mm (.0024 to .0034") 52.3 to 64 g/m2 (13.9 to 17 lb) (45 to 55 kg/1000 sheets/1091 x 788) Cutting position (auto-cutter) Cutting position (manual cutter) 27 mm (1.063") 20.2 mm (0.79") (*1) (*2) 63.34 mm (2.49") Maximum of 200 dots, 400 positions [6.76 mm (0.27")] [5.9 mm (0.23")] 76 mm (2.99") Figure 1-4 Printing area (*1) This dimension shows the distance from the manual cutter to the print position. (*2)Values for the printing area are calculated (between dot centers) with the wire diameter (0.29 mm [.011"]). 1-4 Features and General Specifications Rev. B Confidential TM-U200 Series (Type B) Service Manual Auto Cutter Partial cut is executed by a command. (A partial cut leaves one point uncut.) Paper Roll Supply Device Supply device: Drop-in loading Receive Buffer ANK font model: Either 1000 bytes or 40 bytes, selectable by DIP switches. Multilingual fornt model: Either 512 bytes or 40 bytes, selectable by DIP switches. Electrical Specifications Power supply One of the following five AC adapters is included, depending on the specifications: AC adapter specifications Power consumption (except when driving drawer kick-out): Settings and shipment Input voltage range Model name Japan 100 V ± 10%, 50/60 Hz PA-6508 North America 120 V ± 10%, 60 Hz PB-6509 Europe (Germany) 230 V ± 10%, 50 Hz PB-6510 Europe (U.K.) 230 V ± 10%, 50 Hz PA-6511 Australia 240 V ± 10%, 50 Hz PA-6513 Operating: Mean average 43 W Standby: Average 6 W Ribbon Cassette Ribbon cassette specifications Model number Color Ribbon life (*1) ERC-38 (P) Purple 4 million characters (with continuous printing at 25° C [77° F]) ERC-38 (B) Black 3 million characters (with continuous printing at 25° C [77° F]) ERC-38 (B/R) Black and Red Black: 1.5 million characters (with continuous printing at 25° C [77° F]) Red: 750,000 characters (with continuous printing at 25° C [77° F]) (*1) Ribbon life is based on the following conditions: Character font:7 x 9 font (with descenders) Print pattern:ASCII 96-character rolling pattern. See the specification published by EPSON for the print pattern example. NOTE: Malfunctions and other problems may occur if a ribbon cassette other than the specified one is used. Rev. B Features and General Specifications 1-5 Confidential External Dimensions and Weight Height: 150 mm (5.91") Width: 160 mm (6.30") Depth: 248 mm (9.76") Weight: Approximately 2.5 kg (5.5 lb) Color: EPSON standard gray Environmental Specifications Temperature: Operating: 0° to 50° C (32° to 122° F) At 34° C (93° F) or higher, there are humidity restrictions; see the figure below. Storage: –10° to 50° C (14° to 122° F), except paper and ribbon Humidity: Operating: 10% to 90% RH (non-condensing) Storage: 10% to 90% RH (non-condensing), except paper and ribbon 34° C (93° F), 90% 90 Relative Humidity [% RH] 80 40° C (104° F), 65% 60 Operating Temperature Range 40 50° C (122° F), 35% 20 10 0 0 10 20 30 40 50 Environmental Temperature Figure 1-5 Operating temperature and humidity range Vibration resistance: When packed: Frequency: 5 to 55 Hz Acceleration: 2 G Sweep: 10 minutes (half cycle) Duration: 1 hour Directions: x, y, and z 1-6 Features and General Specifications Rev. B Confidential Impact resistance: TM-U200 Series (Type B) Service Manual When packed: Package: EPSON standard package Height: 60 cm (23.62") Directions: 1 corner, 3 edges, and 6 surfaces When unpacked: Height: 5 cm (1.97") Directions: Lift one edge and release it (for all 4 edges) Reliability Life Mechanism: 7,500,000 lines (See the TM-U200 Series (Type B) Specification for the print color switching number. Print head: 150 million characters (using an average of 2 dots/wire per character.) (The print pattern is shown in the TM-U200 Series (Type B) Specification in Figure A-1.) Auto cutter: 800,000 cuts End of life is defined as the point at which the printer reaches the beginning of the wear out period. MTBF 180,000 hours Failure is defined as a random failure occurring within the time of the random failure period. MCBF 18,000,000 lines This is an average failure interval based on failures relating to wear out and random failures up to the life of 7,500,000 lines. Printer Installation Position Install the printer horizontally. Make sure it does not tilt more than 15°. The printer must also be installed so that it does not move or vibrate during paper cutting or the drawer kick-out operation. Fastening tape is available as an option. Rev. B Features and General Specifications 1-7 Confidential Hardware Configuration Paper end detector Print head unit Paper feed motor Home position sensor Carriage motor Paper roll near-end detector (optional) Interface circuit board Main circuit board Figure 1-6 TM-U200 Series (Type B) main unit configuration 1-8 Features and General Specifications Rev. B Confidential TM-U200 Series (Type B) Service Manual Main Unit Specifications Paper Feed Motor Type: 4-phase, 48-polarity, PM-type stepping motor Drive voltage: 24 VDC ± 10% Winding resistance: 58 Ω ± 2.9 Ω at 25° C (77° F), per phase Current consumption: Peak: 1.1 A in worst case Average: 200 mA at 24 VDC, 25° C (77° F), 600 pps 350 mA maximum Carriage Motor Type: 4-phase, 48-polarity, PM-type stepping motor Drive voltage: 24 VDC ± 10% Winding resistance: 39.5 Ω ± 1.9 Ω at 25° C (77° F), per phase Current consumption: Peak: 1.5 A maximum Average: 400 mA at 24 VDC, 25° C (77° F), 952 pps 600 mA maximum Print Head Unit Number of solenoids: 9 Winding resistance: 19.2 Ω ± 5% at 25° C (77° F), per phase Drive voltage: 24 VDC ± 10% Home Position Sensor Type: Photo sensor Voltage: 5 VDC ± 5% Output level: LOW when the carriage home position is detected Rev. B Features and General Specifications 1-9 Confidential Paper End Detector Type: Microswitch Voltage: 5 VDC ± 5% Output level: High when paper end is detected Paper Roll Near-end Detector (Optional) Type: Microswitch Voltage: 5 VDC ± 5% Output level: Low when a paper near-end is detected Connectors Frame ground screw Interface connector Frame ground screw Drawer kick-out Power supply connector connector Figure 1-7 Connector panel (serial interface) Frame ground Interface Frame ground Drawer kick-out Power supply connector connector screw connector screw Figure 1-8 Connector panel (parallel interface) Interface Connector See the interface section. 1-10 Features and General Specifications Rev. B Confidential TM-U200 Series (Type B) Service Manual Power Supply Connector This connector is used to connect the printer to an external power source. Pin assignments: See the table below. Power supply connector pin assignments Pin Number Signal Name 1 + power supply 2 GND 3 NC Shell Frame GND 2 3 1 NOTE:Be sure to ground the frame ground (FG) screw on the board at the bottom of the unit. Ground wire terminal hole diameter: 3.2 mm (.13"). Ground wire thickness: AWG 18 or equivalent. Drawer Kick-Out Connector A pulse specified by the ESC p command is output to the drawer kick-out connector. The host can confirm the status of the input signal by using the GS a, GS r, or DLE EOT commands. Drawer kick-out connector pin assignments Pin Number Signal name Direction 1 Frame GND — 2 Drawer kick-out drive signal 1 (See "Drawer kick-out drive signal," below.) Output 3 Drawer open/close signal (See "Drawer open/closed signal," below.) Input 4 +24 VDC — 5 Drawer kick-out drive signal 2 (See "Drawer kick-out drive signal," below.) Output 6 Signal GND — Drawer open/closed signal The host computer can check the drawer open/closed status with the DLE EOT, GS a, and GS r commands. Input signal level: LOW = 0 V HIGH = 2 to 5 V (at connector pin 3) Rev. B Features and General Specifications 1-11 Confidential Drawer kick-out drive signal Output signal: Voltage = Approximately 24 VDC Current = 1 A or less Output waveform: Outputs the waveforms in Figure 1-8 to pins 2 and 5 of the connector. t1 (ON time) and t2 (OFF time) are specified by ESC p. CAUTION: To avoid overcurrent, resistance of the drawer kick-out solenoid must be 24 Ω or more. t1 x 2 ms t2 x 2 ms Figure 1-9 Drawer kick-out drive signal output waveform NOTES: ❏ Two driver transistors cannot be energized simultaneously. ❏ The drawer drive duty must be as shown below: ON time ≤ 0.2 (ON time + OFF time) ❏ Be sure to use the printer power supply (connector pin 4) for the drawer power source. CAUTION: Do not connect a telephone line to the drawer kick-out connector; otherwise the printer and the telephone line may be damaged. 1-12 Features and General Specifications Rev. B Confidential TM-U200 Series (Type B) Service Manual Interface RS-232 Serial Interface Data transmission: Serial (compatible with RS-232) Synchronization: Asynchronous Handshaking: DTR/DSR or XON/XOFF control Signal levels: MARK = -3 to -15 V: Logic 1/OFF SPACE = +3 to +15 V: Logic 0/ON Baud rates: 4800, 9600 bps Data word length: 7 or 8 bits Parity settings: None, even, odd Stop bits: 1 or more Connector: Female D-SUB 25-pin connector or equivalent NOTES: ❏ Handshaking, data word length, baud rate, and parity depend on DIP switch settings. ❏ Data transmitted from the printer has 1 stop bit (fixed). Rev. B Features and General Specifications 1-13 Confidential Interface Connector Pin Assignments RS-232 interface connector pin assignments and functions Pin number Signal name I/O Function 1 FG — Frame ground 2 TXD O Transmit data 3 RXD I Receive data 4 RTS O Same as the DTR signal 6 DSR I This signal indicates whether the host computer can receive data. SPACE indicates the host computer can receive data, and MARK indicates the host computer cannot receive data. When DTR/DSR control is selected, the printer transmits data after confirming this signal (except when transmitting data by DLE EOT and GS a). When XON/XOFF control is selected, the printer does not check this signal. Changing the DIP switch setting lets this signal be used as a reset signal for the printer. The printer is reset when the signal remains MARK for 1 ms or more. 7 SG — Signal ground 20 DTR O 1) When DTR/DSR control is selected, this signal indicates whether the printer is busy. SPACE indicates the printer is ready to receive data, and MARK indicates the printer is busy. A busy condition can be changed using DIP SW 1-8 as follows: DIP SW 1-8 status Off line Printer ON OFF 1. During the period from when power is turned on (including reset using the interface) to when the printer is ready to receive data. BUSY BUSY 2. During self-test BUSY BUSY 3. During paper feeding using the paper FEED button. — BUSY 4. When the printer stops printing for a paper-end. — BUSY 5. When an error has occurred. — BUSY 6. When a temporary abnormality occurs in the power supply voltage — BUSY 7. When the receive buffer becomes full. (See Notes.) BUSY BUSY 20 DTR O 2) When XON/XOFF control is selected: This signal indicates whether the printer is correctly connected and ready to receive data. SPACE indicates the printer is ready to receive data. The signal is always SPACE except in the following cases: ❏ During the period after power on until the printer is ready to receive data. ❏ During self test. 25 INIT I Changing DIP switch setting enables this signal to be used as a reset signal for the printer (see the DIP switch settings in the “Buttons and Switches” section of this chapter). The printer is reset when the signal remains SPACE for 1 ms or more. NOTES: ❏ When the remaining space in the receive buffer is 16 bytes, the printer buffer becomes full. This status continues until the space in the receive buffer increases to 32 bytes. ❏ The printer ignores data received when the remaining space in the receive buffer is 0 bytes. ❏ XON is not transmitted when the receive buffer is full. 1-14 Features and General Specifications Rev. B Confidential TM-U200 Series (Type B) Service Manual Switching between on line and off line The printer does not have an on-line/off-line button. It goes off line under the following conditions: ❏ Between the time when power is turned on (including reset using the interface) and when the printer is ready to receive data. ❏ During the self-test. ❏ During paper feeding using the paper FEED button. ❏ Between the time when the printer stops printing for a paper-end and when the on-line recovery wait time finishes after loading paper (if an empty paper supply is detected by either the paper roll end detector or the paper roll near-end detector with a printing halt feature enabled for low paper by ESC c 4). ❏ When an error has occurred. XON/XOFF transmission timing When XON/XOFF control is selected, the printer transmits XON or XOFF signals as follows. DIP SW 1-8 status Printer status ON OFF XON transmission • When the printer goes on line after turning power on or after reset using the interface. • When the receive buffer is released from the buffer full state. • When the printer switches from off line to on line (*1). • When the printer recovers from an error through a command. Transmission Transmission ------Transmission Transmission Transmission Transmission Transmission Transmission XOFF transmission • During an error condition. • When the receive buffer becomes full (*2). Transmission ---- Transmission Transmission (*1)XON is not transmitted when the receive buffer is full. (*2)XOFF is not transmitted when the receive buffer is full. NOTE:The XON code is 11H and the XOFF code is 13H. Rev. B Features and General Specifications 1-15 Confidential Serial interface connection example Host Printer TXD RXD DSR DTR CTS RTS RXD TXD DTR DSR FG FG SG SG NOTES: ❏ Set handshaking so that transmitted data can be received. ❏ Transmit data to the printer after turning on the power and initializing the printer. RS-485 Serial Interface (option) Refer to the Appendix for details. IEEE 1284 Parallel Interface Complies with the standard described in the IEEE 1284 specification by the Institute of Electrical and Electronic Engineers, Inc. Specification Data transmission: 8-bit parallel Synchronization: Externally supplied STROBE signals Handshaking: ACK and BUSY signals Signal levels: TTL-compatible Connector: 57RE-40360-830B (DDK) or equivalent (IEEE 1284 Type B) Reverse communication (Printer to host): Nibble or byte mode Reverse Mode (Data Transmission from Printer to Host) Status data transmission from the printer to the host occurs in nibble or byte mode. These modes allow data transmission from the asynchronous printer under control of the host. Data transmissions in nibble mode are made via the existing control lines in units of four bits (a nibble). In byte mode, data transmissions proceed by making the eight-bit data lines bidirectional. Both modes fail to proceed concurrently in compatibility mode, causing half duplex transmission. The IEEE 1284 nibble/byte modes are under development in draft form and may be subject to change. 1-16 Features and General Specifications Rev. B Confidential TM-U200 Series (Type B) Service Manual Interface Connector Pin Assignments IEEE 1284 interface connector pin assignments and functions Pin number Source Compatibility Mode 1 Host Strobe Host Clk Host Clk 2 Host/Ptr Data0 (LSB) Data0 (LSB) Data0 (LSB) 3 Host/Ptr Data1 Data1 Data1 4 Host/Ptr Data2 Data2 Data2 5 Host/Ptr Data3 Data3 Data3 6 Host/Ptr Data4 Data4 Data4 7 Host/Ptr Data5 Data5 Data5 8 Host/Ptr Data6 Data6 Data6 9 Host/Ptr Data7 (MSB) Data7 (MSB) Data7 (MSB) 10 Printer Ack PtrClk PtrClk 11 Printer Busy PtrBusy/Data3,7 PtrBusy 12 Printer PError AckDataReq/ Data2,6 AckDataReq 13 Printer Select Xflag/Data1,5 Xflag 14 Hostr AutoFd HostBusy HostBusy 15 NC ND ND 16 GND GND GND 17 FG FG FG Logic-H Logic-H Logic-H GND GND GND 18 Printer 19-30 Nibble Mode Byte Mode 31 Host Init Init Init 32 Printer Fault DataAvail/Data0, 4 DataAvail GND ND ND 33 34 Printer DK_STATUS ND ND 35 Printer +5V ND ND 36 Host SelectIn 1284-Active 1284-Active NOTES: ❏ Overscored signal names are LOW active signals. ❏ If a host does not provide for the signal lines listed above, two-way communication fails. ❏ For interfacing, signal lines must use twisted pair cables with the return sides connected to signal ground level. ❏ Interfacing conditions must all be based on the TTL level to meet the characteristics described below. In addition, both the rise and fall time of each signal must be 0.5 ms or less. ❏ Data transmission must not ignore the ACK or BUSY signal. An attempt to transmit data with either the ACK or BUSY signal ignored can cause lost data. (Data transmissions to the printer must be made after verifying the ACK signal or while the BUSY signal is at a LOW level.) ❏ Interface cables should be as short in length as possible. NC: Not Connected ND: Not Defined Rev. B Features and General Specifications 1-17 Confidential Reception of status from the printer through the bidirectional parallel interface In bidirectional parallel interface operation, printer status transmission is available using the two-way communication facility of the IEEE 1284-compatible nibble/byte modes. In this case, unlike in RS-232 serial interface operation, real-time interruptions from the printer to the host are disabled, and so you must pay attention to the following. ❏ The maximum capacity of the printer’s internal buffer is 100 bytes (except ASB status). Status signals exceeding this capacity are discarded. To prevent possible loss of status, the host must be ready for data reception (Reverse Mode). ❏ When ASB is used, the host is preferably in the wait state for data reception (Reverse Idle Mode). When this state is not available, the host enters Reverse Mode to continually monitor data presence. ❏ When ASB is used, preference is given to ASB status for transmission over other status signals. Any accumulated ASB status signals left for transmission from the last to the newest ASB status transmissions are transmitted together at one time as one ASB status showing the presence of change, followed by the latest ASB status. Example: In the normal (wait) state, the ASB status is configured as follows: First Status Second Status Third Status Fourth Status 0001 0000 0000 0000 0000 0000 0000 0000 In a sequence of operations including near end detection and the paper FEED button being pressed and released, the following pieces of data are accumulated. First Status Second Status Third Status Fourth Status ➀ 0001 0000 0000 0000 0000 0011 0000 0000 Near end detection. ➁ 0101 1000 0000 0000 0000 0011 0000 0000 Paper FEED button is pressed. ➂ 0001 0000 0000 0000 0000 0011 0000 0000 Paper FEED button is released. When ASB status is received following this, a total of eight (8) bytes of ASB will be transmitted as follows: Accumulated ASB (➀+➁+➂). Accumulated ASB (➀+➁+➂) + The latest ASB (➂) Fourth Status First Status Second Status Third Status Fourth Status 0101 1000 0000 0000 0000 0011 0000 0000 First Status Second Status Third Status Fourth Status 0001 0000 0000 0000 0000 0011 0000 0000 1-18 Features and General Specifications Rev. B Confidential TM-U200 Series (Type B) Service Manual Notes on setting DIP switch 1-8 to ON The printer mechanism stops but does not become busy when an error occurs, printing stops for a paper end, or paper is fed using the FEED button. When setting DIP switch 1-8 to ON to enable handshaking with the printer, be sure to check the printer status with GS a and ASB function. In this setting, the default value of n for GS a is 2. The printer automatically transmits the printer status, depending on on-line/off-line changes. When using DLE EOT and DLE ENQ, be sure that the receive buffer does not become full. ❏ If the host cannot transmit data when the printer is busy or if an error occurs, DLE EOT and DLE ENQ cannot be used when printer is busy because the receive buffer has become full. ❏ With a host that can transmit data when the printer is busy, if the printer’s receive buffer becomes full while the host is sending bit-image data, a DLE EOT or DLE ENQ command transmitted during sending of bit-image data is processed as bit-image data, not as a command. Secondly, any data transmitted when the receive buffer is full may be lost. Example: Check printer status using GS r after transmitting each line of data and use the 1KB receive buffer. Transmit one line of data so that the receive buffer does not become full. Buttons and Switches Power Switch Type: Rocker switch Function: The power switch turns the power on or off. Note: Turn on the power only after connecting the power supply. Panel Button The panel button is enabled or disabled by the ESC c 5 command. This button is inactive if it is disabled. Feed (FEED) button: Type: Non-locking push button Function: Feeds paper based on the line feed amount set by ESC 2 and ESC 3. Note: The ESC c 5 command enables or disables the panel button. When disabled, the button does not function. However, when loading a paper roll, you can feed paper with the FEED button during the paper loading waiting time if the paper loading waiting time is set by GS z 0. Press the FEED button again after the PAPER OUT LED starts blinking to return the printer to the on-line state. Rev. B Features and General Specifications 1-19 Confidential DIP Switches See Addendum 1 of this manual for the description about the DIP switch settings. Panel LEDs Power (POWER) LED: Paper roll near-end (PAPER OUT) LED: Green On: 24 V power supply is stable. Off: 24 V power supply is not stable. Red On: Paper roll near-end is detected. (*1) Off: Adequate paper remains on the paper roll (normal condition). Blinking: Waiting for restart test print on paper roll or for return to on-line status after automatic paper feeding. (*1) The near-end detector is an option. Error (ERROR) LED: Red On: Off-line (except during paper feeding using the FEED button and during the self-test). Off: Normal operation. Blinking Error state. (Refer to “Error types and countermeasures” in Chapter 4.) Self-test The printer has a self-test function that checks the following: ❏ Control circuit functions ❏ Printer mechanisms ❏ Print quality ❏ Control ROM version ❏ DIP switch settings. 1-20 Features and General Specifications Rev. B Confidential TM-U200 Series (Type B) Service Manual See Chapter 4 for instructions on running a self-test. Error Processing Printer Operation When an Error Occurs The printer executes the following operations upon detecting an error: Serial interface ❏ All mechanical operations stop. ❏ DTR signal is set to MARK (only when DTR/DSR is selected and DIP switch 1-8 is off). ❏ The ERROR LED blinks. ❏ XOFF is transmitted when XON/XOFF control is selected (only when DIP switch 1-8 is off). Parallel interface ❏ All mechanical operations stop. ❏ The BUSY signal is set to HIGH (only when DIP switch 1-8 is off). ❏ The ERROR LED blinks. ❏ Fault signal is set to LOW. Data Receive Error If one of the following errors occurs, the printer prints “?” or ignores the data, depending on the setting of DIP switch 1-1: ❏ Parity error ❏ Framing error ❏ Overrun error. Buffer Full Printing When subsequent data is received after the printer processes one line of data in the print buffer, the printer automatically prints the processed data and feeds the paper one line. Detectors and Printing When the printer detects a paper near-end, it stops or continues printing, depending on the ESC c 4 command setting. The roll paper detector always halts printing when there is no paper. Rev. B Features and General Specifications 1-21 Confidential Hexadecimal Dump This function prints data transmitted from the host computer in hexadecimal numbers and in their corresponding ASCII characters. Performing a Hexadecimal Dump 1. Turn the printer power off. 2. Set DIP switch 1-2 to on to select 40 bytes for the receive buffer capacity. 3. Turn the power on while pressing the FEED button. 4. Before finishing the initialization of the printer, release the FEED button, then press the FEED button again. The printer first prints “Hexadecimal Dump” on the paper roll, and prints the data received thereafter in hexadecimal numbers and their corresponding characters until the printer is turned off. NOTES: ❏ “.” is printed if no printable ASCII character corresponds to the data received. ❏ Control commands are printed in bold for emphasis. ❏ During the hexadecimal dump, all commands except DLE EOT and DLE ENQ are disabled. ❏ Insufficient print data to fill the last line can be printed by taking the printer off line. (See “Switching between on line and off line“ earlier in this chapter.) Sample hexadecimal dump Hexadecimal Dump 1B 21 00 1B 26 02 40 40 1B 69 : . ! . . & . @ @.i 1B 25 01 1B 63 34 00 1B 30 31 : . % . c4 . .. 01 41 42 43 44 45 46 47 48 49 4A : ABCDEFGHIJ Options ❏ Paper roll near end detector (dealer option) ❏ External power supply PS-170 ❏ Printer fastening tape (DF-10) ❏ RS-485 serial interface ❏ IEEE 1284 compatible interface board (Bidirectional parallel: factory-installed) ❏ RS-232 compatible interface board (factory-installed) 1-22 Features and General Specifications Rev. B Confidential TM-U200 Series (Type B) Service Manual External Power Supply PS-170 Specifications 100 V, 120 V, or 230 V (specified at time of purchase) Input Conditions Input voltage (rating) 90 to 264 V (100 VAC-10% to 230 VAC + 15%) 108 VAC to 132 V (120 V type) Frequency (rating) 50 to 60 Hz ± 3 Hz Input current (rating) Less than 100 VA AC switch None Energizing LED None Output specifications Output voltage (rating) 24 VDC ± 5% Output voltage (rating) 2.0 A Output electric power (rating) 48 W Output peak current 4.5 A (within 300 msec) NOTE: Use only the EPSON PS-170 power supply to avoid damage to the printer and the power supply. Rev. B Features and General Specifications 1-23 Confidential 1-24 Features and General Specifications Rev. B Confidential TM-U200 Series (Type B) Service Manual Chapter 2 Mechanism Configuration and Operating Principles Printer Mechanism Operating Principles The M-U200 printer mechanism mounted in the TM-U200 Series (Type B) is composed of six mechanisms: print, paper feed, ribbon feed, detector, auto-cutter, and ribbon switch. Figure 2-1 M-U200 Rev. B Mechanism Configuration and Operating Principles 2-1 Confidential Print mechanism unit The print mechanism unit consists of the parts shown in the figure below. Carriage shaft Print head unit Print head ground plate assembly Belt tension pulley Paper feed frame assembly Carriage guide shaft Carriage sub assembly Belt Print head FPC Carriage motor assembly Figure 2-2 Print mechanism unit 2-2 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual Print head unit movement When the carriage motor is driven and the carriage motor gear moves in the direction of arrow B (forward rotation), the rotational power is conveyed to the belt drive pulley, then the belt. Next, the carriage sub assembly, which is fixed to the belt, moves in the direction of arrow B. When the carriage motor gear rotates in the direction of arrow A (reverse rotation), the carriage sub assembly moves in the direction of arrow A. Carriage motor gear Belt drive pulley Belt Carriage sub assembly Figure 2-3 Print head unit movement Wire movement when a single dot is printed When the specified print head drive pulse is input to the drive coil, the iron core is magnetized, and the actuating plate is pulled in the direction of arrow A. This action pushes the wire toward the platen. When the wire strikes the ink ribbon and paper against the platen, a single dot is printed. (The “platen” is the portion of the paper feed frame being struck by the wires during printing.) When energizing of the drive coil is completed, the wire and actuating plate are returned to the standby position by the wire return spring and actuating plate spring. Paper roll Wire return spring Actuating plate Ink ribbon B A Wire Wire guide Iron core Platen Drive coil Figure 2-4 Printing Rev. B Mechanism Configuration and Operating Principles 2-3 Confidential Printing a character (9x9 font) A character is printed by energizing the print solenoids with respect to the carriage sub assembly portion. (The reference timing for the print solenoids is the carriage motor phase switching signals.) The print head unit moves 0.317 mm (0.012”) (in approximately 1.05 ms) each time the carriage motor rotates one step (7.5°). To print the character “2,” print solenoids 2 and 9 are energized first using the same timing as the carriage motor phase switching signal. Then, print solenoid 8 is energized at TnH (being delayed a half dot). The remaining print solenoids are energized correspondingly, and the character “2” is finally printed. TnH(4) TnH Carriage motor phase switch timing Print solenoid Tn Tn+1 Tn+2 Tn+3 Tn+4 Tn+5 1 2 3 4 5 6 7 8 9 Figure 2-5 Print timing chart 2-4 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual Paper Feed Mechanism Unit The paper feed mechanism unit consists of the parts shown in the figure below. Paper feeding is performed by driving the paper feed motor (stepping motor). Paper hold roller Paper hold spring Paper feed roller assembly Upper paper guide Paper feed motor Paper feed frame assembly Paper hold roller shaft Paper feed reduction gear Figure 2-6 Paper feed mechanism unit Rev. B Mechanism Configuration and Operating Principles 2-5 Confidential Paper loading (semi-automatic loading) When the paper roll is manually inserted into the paper feed roller, the paper detection switch in the paper path detects the paper, and semi-automatic loading is executed. (Semi-automatic loading is the function that automatically feeds paper to the top of the paper feed frame assembly when a paper roll is inserted in the paper path after the detector detects no paper.) Paper Paper feed frame Paper hold plate spring Upper paper guide Guide roller Upper case Paper hold roller Paper feed roller Base frame assembly Figure 2-7 Paper loading Paper feeding Paper feeding is performed by conveying the paper feed motor’s rotational power from the paper feed motor gear through the paper feed reduction gear, paper feed gear, and paper feed roller. Since the paper feed roller and paper hold roller are pressed together, paper advances to the top of the paper feed frame assembly because of the friction between the rubber of the paper feed roller and the paper hold roller. 2-6 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual During printing, the paper feed motor is driven after each line is printed, causing the paper to be fed a specified amount. While the FEED button on the control panel is pressed, the paper feed motor is driven and the paper roll is fed. Paper roll Paper feed roller Paper feed motor gear Paper feed reduction gear Paper hold roller Paper feed gear Figure 2-8 Paper feeding Ribbon Feed Mechanism Unit The ribbon feed mechanism unit consists of the parts shown in the figure below. The printer feeds the ribbon automatically as the carriage motor rotates. Ribbon cassette Ribbon intermediate gear Ribbon frame assembly Ribbon take-up assembly Ribbon drive plate assembly Ribbon transmission gear Figure 2-9 Ribbon feed mechanism unit Rev. B Mechanism Configuration and Operating Principles 2-7 Confidential Ribbon feeding When the carriage motor rotates forward and the carriage motor gear rotates in the direction of arrow A, the ribbon intermediate gear and ribbon drive gear rotate in the directions of arrows B and C, respectively. This causes the ribbon drive plate to move in the direction of arrow D, with the ribbon intermediate gear shaft in the center, until the ribbon drive gear engages the ribbon transmission gear. Since the ribbon transmission gear and the ribbon take-up gear are always engaged, the ribbon take-up gear rotates in the direction of arrow E. When the carriage motor rotates in the reverse direction and the carriage motor gear rotates in the direction of arrow F, the ribbon drive plate moves in the direction of arrow G, disengaging the ribbon drive gear from the ribbon transmission gear. Therefore, the ribbon take-up assembly rotates in the direction of arrow E only when the carriage motor rotates forward. Then the ribbon feed and ribbon hold rollers in the ribbon cassette, which are engaged with the ribbon take-up assembly, rotate and the ribbon is fed. Carriage motor gear F A Ribbon intermediate gear Ribbon feed roller Ribbon take-up assembly B Ribbon drive gear C D G Ribbon take-up gear Ribbon drive plate E Ribbon transmission gear Figure 2-10 Ribbon feeding 2-8 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual Detection Mechanism Unit The detection mechanism unit consists of the home position detection, paper detection, and near-end detection (optional) mechanisms. Paper detector Home position sensor Figure 2-11 Detection mechanism unit Home position detection mechanism The home position detection mechanism consists of the detection protrusion at the left side of the carriage sub assembly and the sensor sub assembly at the left side of the base frame. It determines the home position, identifies the carriage position, and detects carriage sub assembly operation errors. The sensor sub assembly consists of an LED and photo transistor. When the carriage sub assembly moves, the detection protrusion passes between the LED and photo transistor and blocks the optical axis of the photo transistor, changing the output level of the photo transistor. The change in the output level is used as a signal to detect the movement of the carriage sub assembly. Printer side The light is blocked The light is not blocked +5V High A Low GND Signal level at A Carriage sub assembly detection protrusion Figure 2-12 Home position detection diagram Rev. B Mechanism Configuration and Operating Principles 2-9 Confidential Paper detection mechanism The paper detection mechanism is located in the paper path. The mechanism provides paper end detection for the paper roll and semi-automatic loading by detecting presence or absence of the paper roll when it is inserted. Since the paper detector switch sub assembly is a micro switch, it is always ON when the paper roll is loaded. Paper roll near-end detection mechanism (optional) The near-end detector assembly consists of the near-end detector lever and a microswitch sensor and is located on the right side of the lower case. This detector senses the amount of paper left on the paper roll. The tip of the near-end detection lever is always pressed against the edge of the paper roll by a spring inside the microswitch. Therefore, when there is a large amount of paper remaining on the roll, the near-end detection lever is pressed against the side of the paper roll as depicted by the solid lines in the figure below. This keeps the microswitch turned on. When the amount of paper left on the roll decreases below a predetermined amount, the tip of the near-end detection lever no longer presses against the side of the roll and moves in the direction indicated by the arrow into the hole in the center of the roll core. This turns the microswitch off and generates a signal indicating that the paper roll is near its end. Lower case Paper roll Microswitch Near-end detection lever Paper roll center Figure 2-13 Paper roll near-end detection mechanism Auto-cutter mechanism The printer executes a partial cut (one point left uncut) by driving the cutter motor. When the motor is energized from the standby state, the wormwheel rotates in the direction indicated by arrow A through the gears from the motor. The resulting motion of the wheel pin through arm slot C causes the arm to move in direction B. This, in turn, causes slot D to move the 2-10 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual movable blade drive pin in direction E to make the blade execute a cut. If the motor continues rotating, the wormwheel makes one rotation and it makes the movable blade return to the standby position and the cutting is finished. Wormwheel Wheel pin Movable blade drive pin Slot D Arm Movable blade Figure 2-14 Auto-cutter mechanism Ribbon Switch Mechanism Unit The ribbon switch mechanism unit consists of the carriage motor assembly, carriage sub assembly, tension plate assembly, tension belt pulley, home position detector assembly, ribbon frame assembly, ribbon frame spring, ribbon switch lever, ribbon release lever, and ribbon release spring. The mechanism unit is placed at the left and right of the carriage sub assembly, whose position is controlled by the number of carriage motor steps, using the home position as the reference position. It switches between the black and red ribbon in the ribbon switch and ribbon release areas outside the printing area. Switching from Black to Red When the carriage, sub assembly (print head unit) moves in direction E and reaches the ribbon switch area, the ribbon switch lever is pushed by the ribbon switch section and moved to position A (shown by the dotted lines). The ribbon assembly frame is pushed upward by the push face for the ribbon frame. The detent face for the ribbon switch falls into the ribbon switch lever hole in the ribbon frame assembly and the ribbon frame assembly is set to the red position. Releasing from Red to Black When the carriage sub assembly moves in the D direction and reaches the ribbon release area, the ribbon release lever is pushed by the ribbon release section. Then portion C pushes the ribbon frame assembly upward. At this time, the detent face for the ribbon switch is released from the ribbon switch lever hole in the ribbon frame assembly and the ribbon switch lever is returned to ribbon switch lever position B (shown by the solid lines) by the spring power of the Rev. B Mechanism Configuration and Operating Principles 2-11 Confidential ribbon release spring. When the carriage sub assembly moves in the E direction, the ribbon frame assembly and ribbon release lever return to their original positions because of the spring power of the ribbon frame spring. Ribbon release range Ribbon switch range D Ribbon release lever Ribbon switch lever E A B Ribbon release section Ribbon switch section C Ribbon switch lever hole Push face for ribbon frame Detent face for ribbon switch Figure 2-15 Ribbon Switching Electrical Circuitry Operating Principles Hardware Configuration Component connection diagram The electrical circuitry of the printer consists of the main circuit board and the interface circuit boards (UB-S01/RS-232, UB-P02/1284, or UB-S02/RS-485). The figure below is a component connection diagram for the electrical circuitry. Figure 2-16 Component connection diagram 2-12 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual Circuit board block diagram The main circuit board unit contains the following electrical circuits: ❏ Power supply circuit ❏ Reset circuit ❏ CPU [internal RAM: 16K bits (2K x 8 bits)] ❏ Memory [EPROM 512K bits (64K x 8 bits) or flash memory (4M bits/8M bits) ] ❏ Operation panel control circuit ❏ Drawer kick-out driver circuit ❏ Print head driver circuit ❏ Paper feed motor driver circuit ❏ DIP switch read circuit ❏ Various detector circuits ❏ Carriage motor driver circuit ❏ Auto-cutter driver circuit The interface circuit board contains the following: ❏ Reset circuit ❏ Host interface circuit Rev. B Mechanism Configuration and Operating Principles 2-13 Confidential The figure below illustrates the circuit block diagram for the printer. ROM or flash memory Figure 2-17 Circuit board block diagram 2-14 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual Memory Map The following parts are mapped on the printer memory map: ❏ CPU ❏ EPROM or flash memory(program) External program memory 0000H External data memory 0000H Program, character generator area FFFFH (For multi-lingual) Intemal memory 0000H Can not to be used. Character generator area (1) FFFFH 64KB F7A0H 0000H Internal RAM (2KB) (For multi-lingual) FFA0H Character generator area (2) FFFFH Internal I/O (96bytes) FFFFH 64KB 0000H (For multi-lingual) Character generator area (3) FFFFH 64KB ● ● ● 0000H (For multi-lingual) Character generator area (16) FFFFH 64KB CPU (Internal memory) ROM (External program memory) (512K) EA OE RD A8−A15 A8−A15 D0−D7 D0−D7 373 D0−D7 ALE G OC C0−O7 (CE)P71 (A16)P75 (A17)P76 (A18)P77 (A19)P93 A0A7 A0−A7 CE (External data memory) (4M/8M) WR A8−A15 D0−D7 OE A0−A7 CE A16−A19 WE Figure 2-18 Memory map Rev. B Mechanism Configuration and Operating Principles 2-15 Confidential Principles of Operation Power Supply Circuitry The power supply circuit is compact, uses a switching method, and is attached to the main circuit board. The following sections describe printer power supply circuitry. The following table shows power supply voltages and their usages. Power supply voltage usage Voltage Usage +5 V Logic circuit Operation panel circuit Interface circuit board Various detector circuits +24 V Printer: Carriage motor Print head Drawer kick-out drive Paper feed motor Auto-cutter Filter circuit The +24 V (24 to 30 V) DC power is input from CN1 through the filter circuit, which reduces outside noise and keeps internally generated noise from flowing through the +24 V power line. +24 VDC circuit The +24 V power from the filter circuit is input to printer power and the +5 V regulator circuit. Printer power and drawer drive power are the converted +24 ± 1 V that is regulated by series of regulators (U2 to U4). +5 VDC control circuit The +5 V regulator circuit switches the +24 V power input and converts it to +5 V. The switching regulator IC (U1) switches the +24 V input, smooths it via C1, and outputs +5 V. Power for the RS-232 is generated by the internal charge-up circuit on the RS-232 interface driver. Figure 2-19 Power supply circuit diagram 2-16 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual Control Circuitry Reset circuit The reset circuit is used to prevent the CPU from operating erratically and the print head from printing unexpectedly during the period of unstable voltage immediately after power is turned on. To accomplish this, the OUT terminal output (pin 5) of the reset IC (U9) is supplied to the CPU (U5) as the RESET input signal (pin 21). The reset IC (U9) monitors the +5 V voltage. When the voltage is 4.5 V or more, reset is released for the CPU and other components, and the printer becomes ready. In addition, the C terminal (pin 4) of the reset IC (U9) is connected to the reset signal (DSR signal or pin 25 input signal) from the host interface via DIP switches 2-3 and 2-4. If a reset signal is applied to this pin, reset IC output goes LOW and the CPU and other components are reset. The reset signals differ, depending on the interface specifications: RS-232 serial interface: IEEE 1284 parallel interface: Two signals can be selected (DSR signal or pin 25 input signal). Pin 25 must be used for the RESET signal. DIP switch 2-4 is fixed to ON. The printer can be reset with the Init signal (pin 31) from the host. Figure 2-20 Reset circuit Pin 29 of CN4 is the reset signal of the IEEE 1284 parallel interface circuit board. Rev. B Mechanism Configuration and Operating Principles 2-17 Confidential CPU The printer uses an external 8-bit and internal 16-bit CPU, with an external clock of 14.7 MHz. The CPU (U5) controls the internal processing of the printer according to the printer control program written in EPROM (U8). CPU pin functions Pin No. CPU Function Signal Name I/O Level Description 1 P57 ELED/DSW9 I/O TTL ERROR LED. LOW: on. DIP SW 2-1 is read when P100, P101 are LOW. 2 NMI NMI I TTL Not used (connected to +5 V directly). 3 P100 AC1/DSEL O TTL Auto cutter drive (1) and DIP SW read selection. LOW: read (read once after initialization). HIGH: break status when used as motor control port. 4 P101 AC 2/DSEL O TTL Auto cutter drive (2) and DIP SW read selection. LOW: read (read once after initialization). HIGH: break status when used as motor control port. This pin must change at the same time as P100. 5 AVCC AVCC I (+5 V) Analog/digital converter standard voltage. 6 AVSS AVSS I (0 V) Analog/digital converter GND terminal. 7 P60/AN0 V DTC I Analog +24 V power voltage detection. 8 P61/AN1 HD TEMP I Analog Head temperature detection. 9 P62 NE I TTL Paper roll near-end detection. LOW: no paper; HIGH: paper present. 10 P63 DK S I TTL Drawer open/closed. LOW: open. 11 P64 RE I TTL Paper roll end detection. LOW: paper present; HIGH: no paper. 12 P65 HP DTC I TTL Carriage home position sensor. LOW: home position. 13 P66 DET I TTL Host interface DET. 14 P67 AC RST I TTL Auto cutter position detection (reset). 15 VCC VCC I (+5 V) Main power terminal. 16 P70 CTS I TTL Host interface CTS. LOW: on. 17 P71 CCE O TTL 4M ROM CE signal. LOW: active. 18 P72/RXD1 RD I TTL Host interface RD. LOW: on. 19 P73/CLK1 CLK IN/DTR I/O TTL Host interface CLK IN/DTR. 20 P74/TXD1 SD O TTL Host interface SD. LOW: on. 21 RESET RESET I --- CPU reset input. LOW: on. 22 CLK CLK O TTL Not used. Open. 23 VSS VSS I (0 V) GND terminal. 24 X1 X1 I --- Connected to ceramic vibration generator. f=14.74 MHz ± 0.5%. 2-18 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual CPU pin functions Rev. B Pin No. CPU Function Signal Name I/O Level Description 25 X2 X2 O --- Connected to ceramic. f=14.74 MHz ± 0.5%. 26 EA EA I TTL External memory access. LOW: external ROM HIGH: internal ROM (CPU mask). 27 P75 P75 (A16) O TTL External memory address A16 (software). 28 P76 P76 (A17) O TTL External memory address A17 (software). 29 P77 P77 (A18) O TTL External memory address A18 (software). 30 P80 WDTOUT O TTL Watch dog timer error (and hardware limited time power supply switch). LOW: error (reset). 31 P81/INT0 CLK IN/DTR I TTL Connected to pin #19. 32 P82 PF SW I TTL Paper feed switch. LOW: active. 33 ALE ALE O TTL Address latch enable signal. Latches address on bus AD0 to AD7 at fall. 34 VCC VCC I (+5 V) Main power terminal (+5 V). 35 AD0 AD0 3-state TTL 36 AD1 AD1 Address/data bus. Transmits address (lower 8 bits) and data. 37 AD2 AD2 38 AD3 AD3 39 AD4 AD4 40 AD5 AD5 41 AD6 AD6 42 AD7 AD7 43 A8 A8 O TTL Address bus (address upper 8 bits). 44 A9 A9 45 A10 A10 46 A11 A11 47 A12 A12 48 A13 A13 49 A14 A14 50 A15 A15 51 VSS VSS I (0 V) GND terminal. 52 P20 CR A/DSW1 I/O TTL 53 P21 CR B/DSW2 54 P22 CR C/DSW3 Carriage motor driver control 2-2 phase excitation. All terminals on (LOW): hold. DIP SW 1-1 to 1-4 read when P100, P101 are LOW. 55 P23 CR D/DSW4 Mechanism Configuration and Operating Principles 2-19 Confidential CPU pin functions Pin No. CPU Function Signal Name I/O Level Description 56 P90 PF A/DSW5 I/O TTL 57 P91 PF B/DSW6 58 P92 PF C/DSW7 Paper feed motor driver control 2-2 phase excitation. All terminals on (LOW): hold. DIP SW 1-5 to 1-8 read when P100, P101 are LOW. 59 P93 PF D/DSW8 60 RD RD O TTL External memory data read signal. 61 WR WR O TTL External memory data write signal. 62 P32 DKD1 O TTL Drawer kick-out driver signal 1. LOW: active. 63 P33 DKD2 O TTL Drawer kick-out driver signal 2. LOW: active. 64 P40 HEAD8 O TTL Print head #8 driver signal. LOW: on. 65 P41 HEAD7 O TTL Print head #7 driver signal. LOW: on. 66 P42 HEAD6 O TTL Print head #6 driver signal. LOW: on. 67 P43 HEAD5 O TTL Print head #5 driver signal. LOW: on. 68 P44 HEAD4 O TTL Print head #4 driver signal. LOW: on. 69 P45 HEAD3 O TTL Print head #3 driver signal. LOW: on. 70 P46 HEAD2 O TTL Print head #2 driver signal. LOW: on. 71 P47 HEAD1 O TTL Print head #1 driver signal. LOW: on. 72 P48 HEAD9 O TTL Print head #9 driver signal. LOW: on. 73 P51/T04 +24VCOM SW O TTL Head, auto cutter, drawer kick-out power switch. LOW: drive. 74 P52 CRCOM SW O TTL Carriage motor power switch. LOW: motor drive. 75 VCC VCC I (+5 V) Main power terminal (+5 V). 76 P53 PFCOM SW O TTL Paper feed motor power switch LOW: motor drive. 77 P54 CLK REQ O TTL HOST interface CLK REQ. 78 VSS VSS I (0 V) GND terminal. 79 P55 RTS O TTL Host interface RTS. LOW: on. 80 P56 PLED/DSW0 I/O TTL PAPER OUT LED. Low: on. DIP SW 2-2 read when P100 is LOW. ROM or flash memory The printer control program and the character generator data are written in ROM (U8) or in flash memory (U101). The control program controls the basic operations of the printer. All CPU (U5) operations follow this program. 2-20 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual RAM (CPU internal 2K bit) RAM is used as temporary storage for the following: ❏ Data received from the interface (receive buffer) ❏ Pattern data to be printed by the print head (printer buffer) ❏ Data used by the CPU (U5) during processing (flags, pointers, etc.). Operation panel The operation panel is located on the main circuit board and has 3 LEDs (POWER, ERROR, and PAPER OUT) and 1 switch (FEED). The POWER LED is driven at the same time as +5 V is supplied by the power supply circuit. The ERROR and PAPER OUT LEDs are driven by U5. Switch detection is also executed by the U5. +5V U5 P82 P57/T03 P56/INT3/TI2 32 PF SW 1 ELED/DSW9 Q35 80 PLED/DSW0 Q36 R41 R15 GND SW2 R54 1 2 (POWER) D13 R55 1 2 (PAPER) D12 R56 1 (ERROR) D11 C17 2 Figure 2-21 Operation panel circuit Various detector circuits When the printer detects paper, the paper detector at the paper inlet turns the input signal to the CPU (U5) LOW. This detector also functions as the semi-automatic loading detector. A home position sensor is provided to detect the print head position. The input signal to the CPU (U5) becomes LOW when home position is detected. Rev. B Mechanism Configuration and Operating Principles 2-21 Confidential A near-end detector is an option that detects the remaining amount of a paper roll. The input signal to the CPU (U5) becomes LOW when a paper near-end is detected. +5V +5V Mechanism 1 +5R Printer mechanism CN8 R40 R36 U5 RE P64/AN4 11 P62/AN2 2 R37 R38 P65/AN5 1 REC 12 HP DET 9 HPC 3 R39 R53 4 1 2 3 4 +5V H.P GND R.E NE R16 C44 C22 C23 1 2 C46 GND Mechanism 2 CN11 NEC 1 2 1 2 N.E 1 2 GND Figure 2-22 Various detector circuits Host interface circuit The printer has universal interfaces for connection to the host computer. There are three kinds of interfaces: ❏ EIA/TIA RS-232 intrface ❏ IEEE 1284 interface ❏ EIA/TIA RS-485 interface See the interface circuit board diagrams in the Appendix. Drawer kick-out drive circuit Activating the DKD1 and DKD2 signals from the CPU (U5) causes transistors Q29 and Q30 to turn on. This causes transistor array QM5 to turn on, and the drawer drive signal is output. The drawer status signal DK_S, which indicates whether or not the drawer is open, is input to the CPU (U5), allowing the host to check the status via the interface. 2-22 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual The +24 V drawer power supply is supplied via the regulator IC (U2), which cuts off the supply in case of excessive current. {5 V +5V D8 Q29 U5 Q30 QM5 DKD 62 1 CN2 D8 FG DKD 1P DKD SW +24V {24V DKD 2P SG 1 9 8 2 7 6 3 5 4 4 3 2 63 R47 P32 P33 +5V {5 V {5 V +5V R48 D46 R13 5 R28 1 0 6 Q34 10 P63 D2 C39 U2 VI VO G N D + + C16 C45 DC 24-30V IN Figure 2-23 Drawer kick-out drive circuit DIP switch read circuit The description about the DIP switch read circuit differs depends on the type of the DIP switch set 2. See Addendum 1 about the type of the DIP switch set 2. When the DIP switch set 2 is D-type There are eight switches in DIP switch set 1 and two switches in DIP switch set 2 that are statusreadable switches. Each signal is input to the CPU. The signal is read as LOW when the switch is on, and HIGH when the switch is off. Rev. B Mechanism Configuration and Operating Principles 2-23 Confidential CPU (U5) pins 52 to 55, pins 56 to 59, and pins 1 and 80 are also used for the carriage motor drive circuit, paper feed motor drive circuit, and operation panel control circuit. The pins are used to read DIP switches temporarily immediately after the printer initialization (or the power is turned on). +5V +5V (*1) Q14 Q15 Q16 Q17 Q18 Q19 Q20 Q21 Q36 Q35 U5 P20 P21 P22 P23 P90 P91 P92 P93 52 53 54 55 56 57 58 59 DSW1 P57 P56 DSW2 1 2 3 4 5 6 7 8 1 2 D24 D23 D22 D21 D20 D19 D18 D17 D14 D25 1 80 +5V +5 V +5V +5 V R29 R33 Q39 Q38 P100 3 +5 V R32 Q28 P101 4 Figure 2-24 DIP switch read circuit (*1): Resistance between E and B is used for pull-up resistors in the transistor. 2-24 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual When the DIP switch set 2 is AD-type or CD-type There are eight switches in DIP switch set 1 and four switches in DIP switch set 2 that are statusreadable switches. Each signal is input to the CPU. The signal is read as LOW when the switch is on, and HIGH when the switch is off. CPU (U5) pins 52 to 55, pins 56 to 59, and pins 1, 27, 28 and 80 are also used for the carriage motor drive circuit, paper feed motor drive circuit, operation panel control circuit and address bus. The pins are used to read DIP switches temporarily immediately after the printer initialization (or the power is turned on). +5V (*1) QM 101 QM 102 QM 101 QM 102 QM 103 RM 105 QM 103 RM6 QM 109 QM 109 RM6 RM6 U5 P20 P21 P22 P23 P90 P91 P92 P93 52 53 54 55 56 57 58 59 DSW1 DSW2 1 DM101 P57 P56 P75 P76 2 3 4 5 DM102 6 7 DM103 8 DM104 1 2 DM105 5 6 DM106 1 80 27 28 +5 V R29 QM112 P100 P101 3 3 4 5 QM117 2 1 4 Figure 2-25 DIP switch read circuit (*1): Resistance between E and B is used for pull-up resistors in the transistor. Rev. B Mechanism Configuration and Operating Principles 2-25 Confidential Printer Mechanism Driver Circuits Print head driver circuit The head driver signal is output from CPU (U5) pins 64 to 72. Receiving this drive signal, transistor array QM1 and QM2 and transistor array QM3 turn On, Off, and drive the head. Power supply time to the head is adjusted by the supplied power voltage. The CPU (U5) changes the power voltage between analog and digital at AN0 (pin 7) and decides and controls the head power supply time according to the internal time table. To prevent damage to the head during excessive printing, a heat sensor has been installed in the print head. An analog-digital conversion of the partial pressure difference between the heat sensor and R18 is carried out in AN1 (pin 8) of the CPU (U5) and the temperature is calculated. If the head is overheating or working improperly, the ERROR LED flashes. +5V +24DT D50 R46 U5 +5V R8 P60/ANO P61/AN1 7 V DTC 8 HD TEMP C29 + _ C33 R45 R18 R19 AVCC AVSS +5V 5 6 D27 C19 C31 C30 D28 Q4 HEAD1 Q5 D32 HEAD5 Q6 D38 QM1 1 RM3 HEAD6 Q7 D39 P47 P43 P42 P46 P44 P45 P41 P50 P40 71 7 8 5 6 3 4 1 2 HEAD2 8 9 6 7 4 5 67 66 3 2 D40 Q12 70 1 0 D44 HEAD4 68 R20 69 Q8 65 Q13 72 HEAD3 64 Print head unit CN7 1 FG 2 #2 3 #4 4 #6 5 #8 6 COM (# 4.6.8 ) 7 #9 8 C0M ( # 1.2.9 ) 9 THEM1 10 THEM2 11 COM (# 3.5.7 ) 12 #5 13 #7 14 #1 15 #3 Q9 D41 HEAD7 Q10 D42 QM2 1 RM4 HEAD9 Q11 D43 7 8 5 6 3 4 1 2 HEAD8 D45 8 9 6 7 4 5 3 2 1 0 D7 +24A Figure 2-26 Print head driver circuit 2-26 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual Paper feed motor driver circuit The paper feed motor (stepping motor) possesses an accurate angle of rotation and permits speed control. It is driven with 2-2 phase excitation. By turning P53 of the CPU to LOW, +24 V (labeled +24C signal in the figure below) is applied to the COM terminal of its coil, and it is made to run by changing P90, P91, P92 and P93 to HIGH and LOW. Its speed is determined by the speed of changing P90, P91, P92, and P93 between HIGH and LOW. At the end of paper feeding, P53 of the CPU is once again set to HIGH. +5V Q18 +5V PF A/DSW5 Q19 U5 D35 P90/M10 P92/M12 P91/M11 P93/M13 PF C/DSW7 56 Paper feed motor 58 Q20 QM4 57 CN6 RM2 D33 59 1 PF B/DSW6 Q21 D34 7 8 5 6 3 4 1 2 9 8 7 6 1 1 2 2 3 3 4 PF D/DSW8 D37 4 5 2 3 1 0 4 5 5 (ROTOR) PF A PF C PF COM PF B PF D D10 +24C +24C Figure 2-27 Paper feed motor driver circuit Carriage motor driver circuit The carriage motor (stepping motor) possesses an accurate angle of rotation and permits speed control. It is driven with 2-2 phase excitation. By turning P52 of the CPU to LOW, +24 V (labeled +24B signal in the figure below) is applied to the COM terminal of its coil, and it is made to run by changing P20, P21, P22, and P23 to HIGH and LOW. Its speed is determined by the speed of changing P20, P21, P22, and P23 between HIGH and LOW. At the end of paper feeding, P52 of the CPU is once again set to HIGH. +24B +24B +5V Q14 CR A/DSW1 Q15 U5 P20/M00 P22/M02 P21/M01 P23/M03 52 D29 CR C/DSW3 D9 54 QM3 53 55 Carriage motor Q16 D30 CR B/DSW2 Q17 D31 CR D/DSW4 D36 1 CN5 RM1 7 8 5 6 3 4 1 2 9 8 6 7 4 5 (ROTOR) 1 1 CR A 2 2 CR C 3 3 CR COM 4 CR B 5 CR D 4 5 3 2 1 0 Figure 2-28 Carriage motor driving circuit Rev. B Mechanism Configuration and Operating Principles 2-27 Confidential Auto-cutter driver circuit Rotating the DC motor counterclockwise or clockwise causes the auto-cutter to execute a full cut or a partial cut (one point left uncut). The driver IC (U6) has a full-bridge configuration and controls motor rotation, clockwise and counterclockwise. The position of the auto-cutter blade is detected by the signal connected to P67 of the CPU. +24V BLOCK (1) U6 U5 VM R57 P100 P101 3 1 4 2 IN1 OUTA IN2 OUTA R58 GND 7 3 5 4 GND TA8428K +5V C20 Auto-cutter R34 CN9 1 2 R35 3 P67 4 1 AC M1 2 AC M2 3 GND 4 AC RES 1 2 C21 GND Figure 2-29 Auto-cutter drive circuit 2-28 Mechanism Configuration and Operating Principles Rev. B Confidential Rev. B TM-U200 Series (Type B) Service Manual Mechanism Configuration and Operating Principles 2-29 Confidential 2-30 Mechanism Configuration and Operating Principles Rev. B Confidential TM-U200 Series (Type B) Service Manual Chapter 3 Handling and Maintenance Handling Precautions Storage Precautions ❏ Avoid storing the printer in a dusty, humid, or extremely cold area. Also avoid areas that are exposed to direct sunlight for long periods of time. ❏ For long-term storage, place the printer in a polyethylene bag with anti-rust paper (VCI paper) and keep it in a dry place. Use Precautions ❏ Always install a ribbon cassette and load paper before printing. • If the paper runs out, be sure to load new paper before you resume printing. • If you try to print when there is no paper or no ribbon cassette in the printer, the print quality of subsequent print jobs may suffer (the printing color may become uneven, or some dots may not be printed) because of damage to the surface of the platen, printing wires, or ribbon. ❏ Use a ground wire connected to the frame ground (FG) screw to ground the printer. ❏ Be careful when wiring and connecting the interface, power, and drawer kick-out cables to avoid subjecting the connectors to excessive pressure. Paper Handling Precautions ❏ Use only paper that meets the paper specifications described in Chapter 1 of this manual. ❏ If the paper used does not meet the required specifications, any of the following may occur: Rev. B • Print quality deterioration • Problems in loading paper • Paper jams • The ribbon may catch on the paper • Ink may stain the paper. Handling and Maintenance 3-1 Confidential Ribbon Cassette Handling Precautions ❏ Use only the ribbon cassette specified in Chapter 1 of this manual. If another ribbon cassette is used, any of the following may occur: • Print quality deterioration • Printer life may be shortened • Ink may leak • The ribbon may catch on the print head. ❏ Do not re-ink a ribbon. If a ribbon is re-inked: • Print quality could deteriorate due to a malfunction of the print wires • Ink may leak. Replacing the Paper Roll Note: Be sure to use roll paper that meets the specifications. 1. Turn on the printer. 2. Open the printer cover. 3. Pull the paper and cut the paper at the dotted line shown in the illustration below. Printer cover Cut here 3-2 Handling and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual 4. Press the FEED button to remove the cut paper. 5. Remove the used paper roll. 6. Using scissors, cut the leading edge of the paper roll perpendicular to the paper feed direction, as shown below. 7. Insert the paper roll. Note: Be sure to note the correct direction that the paper comes off the roll, as shown below. Rev. B Handling and Maintenance 3-3 Confidential 8. Open the auto-cutter by pulling the tab up and toward you. 9. Hold both edges of the paper and insert it straight into the paper slot. The printer feeds the paper automatically. 10. If the paper is not coming out of the manual cutter, press the paper FEED button until the paper comes out. 3-4 Handling and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual 11. Cut the paper on the manual cutter. 12. Close the auto cutter by using the tab. 13. Close the printer cover. 14. When the PAPER OUT light blinks, press the paper FEED button to set the printer on line. Note: The printer is off line until the PAPER OUT light is off. Replacing the Ribbon Cassette CAUTION: Make sure the printer is not receiving data when you replace a ribbon cassette; otherwise, data may be lost. 1. Open the printer cover. 2. Open the auto-cutter by pulling the tab up and toward you. 3. Remove the used ribbon cassette. Rev. B Handling and Maintenance 3-5 Confidential 4. Turn the ribbon cassette’s knob in the direction of the arrow to take up any slack in the ribbon. CAUTION: Never turn the ribbon cassette’s feed knob in the opposite direction of the arrow marked on the cassette; otherwise the ribbon cassette may be damaged. 5. Insert the ribbon in the position shown in the illustration below and push the ribbon cassette until it clicks. Note: Make sure that the ribbon is installed between the print head and the platen without wrinkles or creases. 3-6 Handling and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual 6. Turn the ribbon cassette’s knob 5 or 6 times in the direction of the arrow again to take up any slack in the ribbon. Removing Jammed Paper Follow these steps to clear a paper jam: CAUTION: The print head becomes very hot during printing. Allow it to cool before you reach into the printer. 1. Turn the printer off and open the printer cover. Rev. B Handling and Maintenance 3-7 Confidential 2. Pull the paper and cut it at the position shown by the dotted line in the illustration below. Cut here 3. Remove the paper roll. 4. Open the auto cutter by pulling the tab up and toward you. 5. Remove the jammed paper by pulling it in the direction of paper feeding. 3-8 Handling and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual Note: Do not pull the jammed paper in the opposite direction of paper feeding. 6. If paper still remains in the printer, follow the steps below. 7. Remove the ribbon cassette. 8. Loosen the screw securing the print head cover. Turn the screw only until you can tilt it as shown in the illustrious. Rev. B Handling and Maintenance 3-9 Confidential Note: Do not remove the screw from the print head cover. 9. Remove the print head cover. 10. Remove all the jammed paper. Note: Do not pull the jammed paper in the opposite direction of paper feeding. 11. Replace the print head cover and secure it with the screw. 12. Replace the ribbon cassette and close the auto cutter. 3-10 Handling and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual 13. If the auto cutter blade is not in its normal position (if you can see the blade in the auto cutter slit, the blade is not in the normal position), insert a screwdriver into the right side of the auto cutter and turn the gear inside to move the blade to the normal position. 14. Replace the paper roll and close the printer cover. Rev. B Handling and Maintenance 3-11 Confidential Using the Power Switch Cover You can use the provided power switch cover to protect the power switch from accidental or improper operation. Attach the cover as shown in the illustration below. You can turn the power on or off with the switch cover attached by inserting a pointed object (like a ball point pen) through either of the two small holes on the switch cover. CAUTION: If an accident occurs when the power switch cover is attached, pull the AC adapter cord out of the outlet immediately; otherwise the printer may be damaged. 3-12 Handling and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual Inspection and Maintenance Proper performance of the inspection and maintenance procedures described below allows this unit to perform for the years of trouble-free operation for which it is designed. Maintenance Procedures The inspection procedures described here are divided between two types: daily inspection, which can be performed by those who use the unit on a daily basis, and periodic inspection, to be performed by individuals who have a more detailed technical knowledge of the unit. Daily inspection Setup Inspection item Action Check for proper connection of cables. Reconnect any cables that have come loose. Check for proper installation of roll paper and ribbon cassette. Is the ribbon passing along the proper route? Correctly install roll paper and the ribbon cassette. Check the ribbon for damage. Replace the ribbon cassette, if damaged. Open the roll paper cover and make sure there are no large pieces of paper or other foreign matter present. Clean out any paper or foreign matter. Checkpoints Standards Remedies Dust, paper particles, or dirt on and in the printer No dust, paper particles, or dirt should be allowed to build up on or in the printer. Clean the printer thoroughly with a vacuum cleaner. No small pieces of paper should be left in the paper path. Remove any pieces of paper from the paper path. Lubrication See the “Lubricants” section. Lubricate the points listed in the “Lubrication Points” section. Operation check When each printer component is checked, no abnormalities should be found. Check the printer following the Troubleshooting flowcharts in Chapter 4. Shape of the springs No spring should be bent or deformed. Replace any deformed springs. Ribbon cassette The ribbon cassette should be properly installed in the printer. See “Replacing the Ribbon Cassette” in this chapter. Paper particles, paper scraps, foreign matter Periodic inspection Rev. B Handling and Maintenance 3-13 Confidential Cleaning 1. Wipe off stains with a clean, dry cloth. If the stains cannot be wiped off, use a neutral detergent. CAUTION: Never use benzene, alcohol, thinner, trichloroethylene, or any of the ketone family of solvents because they may deform or damage plastic and rubber components. 2. Thoroughly clean all parts of the printer with a vacuum cleaner. Note: Check the amount of lubrication in each cleaned area and lubricate as needed. See “Lubricants” below. Lubricants Lubrication is critical to retaining the printer at its initial performance level throughout its product life, as well as avoiding potential problems. Always lubricate at prescribed intervals, using the correct lubricants. Standard Lubrication ❏ During disassembly and reassembly, clean the parts first, then lubricate them. See the lubrication points table in this chapter and the lubrication and adhesive points diagrams in the Appendix. ❏ Lubricate or overhaul after every 7.5 million lines printed. Lubricants The types of lubricants used greatly affect the printer’s performance and durability, and a lubricant’s low-temperature characteristics require special attention. EPSON has conducted thorough analyses of the technical data and wide-ranging experimentation on different lubricants. The EPSON selection of lubricants prescribed for use with the printer is based on the results of such research. The prescribed EPSON lubricants are available in 40 cc (40 gr) metal cans or plastic containers (the smallest unit of supply). The two types of lubricants used with this printer are G-31 and O-10. 3-14 Handling and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual Lubrication Points The following table describes the lubrication points, type, and class. The numbers in the following table correspond to the numbers in the lubrication and adhesive points diagrams in the Appendix on pages A-7 and A-8. Lubrication points No. Lubrication point Lubricant type (1) Contact points between the carriage shaft and carriage sub assembly (2 points) O-10 (2) Ribbon intermediate gear shaft G-31 (3) Both ends of the guide roller G-31 (4) Both ends of the receive roller G-31 (5) Switching points of ribbon switch lever G-31 (6) Switching point of ribbon release lever G-31 (7) Left and right ribbon frame assembly mounting shaft in the base frame assembly G-31 (8) Middle of the paper hold roller shaft G-31 Tool List The required tools for this printer are as follows: ❏ Brush #1 ❏ Cleaning brush ❏ Phillips screwdriver No. 1 ❏ Phillips screwdriver No. 2 ❏ Phillips screwdriver No. 2 (with long handle) ❏ Flatblade screwdriver ❏ Pliers ❏ Retaining pliers #2.3 ❏ Thickness gauge (0.50 mm, 0.55 mm, 0.60 mm) ❏ Tweezers ❏ Slanted blade cutter Rev. B Handling and Maintenance 3-15 Confidential Lubricants and adhesives list Lubricants and adhesives Type/name Quantity Grease/G-31 40 gr (1.4 oz) Oil/O-3 40 gr (1.4 oz) 3-16 Handling and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual Chapter 4 Troubleshooting Use the following to troubleshoot and repair the printer: Self-test This procedure tests control circuitry (other than serial communication and parallel communication send / receive control) and the printer mechanism. Troubleshooting flowchart When the source of the problem is not clear, use the flowchart to find and replace a defective component. Troubleshooting table Follow the steps outlined in this table to repair a defect whose symptoms are known. Self-test Initiating the Self-test 1. Insert a paper roll and a ribbon cassette in the printer, and close the printer cover. 2. Turn off the printer. 3. Turn on the printer while keeping the FEED button depressed. The self-test starts, and status information is printed. Self-test Standby 1. When status information printing is complete, the following is printed: “Self-test printing. Please press paper FEED button.” The PAPER OUT LED flashes alternately to indicate the standby condition. 2. Press the FEED button to continue the self-test. Ending the Self-test The printer prints “*** completed *** “ and ends the self-test. The printer automatically becomes ready to receive data after the self-test. Rev. B Troubleshooting 4-1 Confidential Troubleshooting Flowchart If the source of a problem is not clear, use the flowchart below to find and replace the defective component. Normally, perform servicing by component replacement. Repairs of the PCBs and other components should be performed only by technicians. Start Power on Is POWER LED lit? No 1 Yes Is ERROR LED flashing? No Yes Take steps described in “Error types and countermeasures.” END Is PAPER OUT LED lit? Yes Is paper roll in near-end condition or not inserted? No No Yes 2 Replace or insert paper roll. Semi-automatic loading executed? No Is self-test normal? 3 Yes Execute the self-test No 4 Yes Does auto-cutter perform normally? No 5 Yes Host sends print data Is printout normal? Yes No 6 END 4-2 Troubleshooting Rev. B Confidential TM-U200 Series (Type B) Service Manual 1 POWER LED does not light 1 Is power supply cable connected properly? No Connect power supply cable properly. Yes No OK? Yes End Does external power supply have proper output voltage rating? (approximately +40 V in no-load condition) Yes No Replace external power supply. No OK? Yes End Has fuse F1 on main PCB blown? No Yes Make sure main PCB does not have any damage such as burns. Replace Fuse F1 (See Replacing the fuse in Chapter 5) No OK? Yes End Replace main PCB End Rev. B Troubleshooting 4-3 Confidential 2 PAPER LED is lit. 2 Turn the power on again. OK? Yes No END (*) Is the paper roll near end sensor’s continuity normal?* No Replace the nearend sensor. Yes No OK? Yes END Replace printer mechanism assembly. Yes OK? No END Replace main PCB. END (*) The near-end sensor is optional. 4-4 Troubleshooting Rev. B Confidential TM-U200 Series (Type B) Service Manual 3 Semi-automatic loading is not executed. 3 Yes Is paper jammed in the paper inlet path? Remove the paper. No No OK? Yes END Is connector CN6 attached firmly? No Attach connector firmly. Yes No OK? Yes END Replace printer mechanism assembly. OK? Yes No END Replace main PCB. END Rev. B Troubleshooting 4-5 Confidential 4 Self-test is not normal. 4 Does the printer not perform at all? Yes No Replace printer mechanism assembly. Is the output voltage of the regulator circuit on the main board within the specified range? (*) Yes OK? No END No Replace the main PCB. Replace the mechanism. No OK? Yes Replace main PCB. END END END (*) Confirm the voltage at each terminal in the table below: Checkpoint Specified value Pin 3 of U2, U3, U4 Approx. 24 V R54 Approx. 5 V 4-6 Troubleshooting Rev. B Confidential TM-U200 Series (Type B) Service Manual 5 The auto-cutter does not perform correctly. Disassembly of the auto-cutter unit is prohibited. If you disassemble it, performance cannot be guaranteed. 5 Is there a paper jam in the auto-cutter? Yes Remove jammed paper. Yes Turn on the power again. No OK? Yes End Replace the auto-cutter unit. OK? Yes No End Replace the main circuit board. End Rev. B Troubleshooting 4-7 Confidential 6 Data from host is not printed normally. 6 Set DIP switch 1–1 to OFF. Send data from host to printer. (*) Is “?” printed? Yes Are serial interface parameters set to identical values at host and printer? No No Make settings identical. Yes Does interface cable match specifications? No No OK? Yes Replace with a proper cable. End Yes No OK? Yes End Is interface PCB connected to the main PCB firmly? (*) Dotted line indicates the process of checking problems for the serial interface. No Connect the interface PCB firmly. Yes No OK? Yes End Replace interface PCB. OK? Yes No End Replace printer mechanism assembly End 4-8 Troubleshooting Rev. B Confidential TM-U200 Series (Type B) Service Manual Troubleshooting Tables The tables contain the following columns: ❏ Problem This is a symptom that can be verified. ❏ Probable cause This is a listing of one or several possible causes that should be examined. ❏ Level Level A The problem can be corrected by persons familiar with the printer who have general knowledge, but special technical skills are not required. Level B The problem requires thorough knowledge and familiarity with the printer as well as technical skills and experience. ❏ Checkpoint These are one or more areas in the printer that should be checked. ❏ Action These are the steps to correct the problem. If the problem persists after taking these steps, check the other possible causes listed. Table 4-1 Troubleshooting table for printer operation failure Problem Probable cause The POWER LED does not light when the power is on. The AC adapter may be bad. The fuse may be blown. The printer does not print the self test. Rev. B Level Checkpoint Action B Check output voltage of the AC adapter (approximately +40 VDC with no load). Replace the AC adapter. B Check if fuse F1 on the main circuit board assembly is blown. Replace fuse F1. (See “Replacing the Fuse” in Chapter 5.) B Check if fuse (R42) on the main circuit board assembly is blown Replace the main circuit board. The main PCB may be bad. B The cause is none of the above. Replace the main PCB. The main PCB may be bad. B Check the self test using another main circuit board unit. Replace the main PCB. The FEED button may be bad. B Check the continuity of the FEED button (SW2). Replace SW2. The printer mechanism assembly may be bad. B The cause is none of the above. Replace the mechanism assembly. Troubleshooting 4-9 Confidential Table 4-1 Troubleshooting table for printer operation failure (Continued) Problem Probable cause Data from the host is printed incorrectly. An incorrect interface cable may be used. Checkpoint Action A Check if the interface cable matches the printer specifications. Use the correct interface cable. For the serial interface models, the printer DIP switch settings do not match the host settings. A Check if the printer DIP switch settings match the host settings. Change the printer DIP switch settings or host settings so that they match. The main circuit board unit may be bad. B Check the printer using another main circuit board unit. Replace the main circuit board unit. The mechanism assembly may be bad. B The cause is none of the above. Replace the mechanism assembly. The PAPER OUT LED does not correctly indicate the status of the paper roll. The near-end detector assembly may be bad. (The near-end detector is an option.) B Check the signal of the nearend detector assembly. Replace the near-end detector assembly. The printer is not initialized (home position detection error). The connector is not inserted correctly. A Check if the pins of CR motor cable are inserted in connector CN5 of the main circuit board unit. Reinsert the connector. The carriage motor assembly may be bad. B Check the continuity of each terminal. Replace the carriage motor assembly. The carriage motor may be bad. B The cause is none of the above. Replace the carriage motor assembly. The home position detector assembly may be bad. B Using an oscilloscope, check if the detection signal is output when the print head unit passes above the home position detector assembly. Replace the home position detector assembly. 4-10 Troubleshooting Level Rev. B Confidential TM-U200 Series (Type B) Service Manual Table 4-1 Troubleshooting table for printer operation failure (Continued) Problem Probable cause Semi-automatic loading is not executed. (Paper is not fed.) The paper supply operation may be incorrect. Level Checkpoint Action A Check if the paper roll meets printer specifications. Use the correct paper roll. (See “Paper Specifications” in Chapter 1.) The paper path may be incorrect. A Check if the paper supply path is blocked by paper particles or foreign materials. Remove any pieces of paper, paper particles, or foreign materials. The connector is not inserted correctly. A Make sure the PF motor cable pins are inserted in connector CN6 of the main circuit board. Reinsert the connector. The paper feed motor may be bad. B Check if the motor rotates during semi-automatic loading. Replace the paper feed motor. The paper hold roller assembly may be worn. B Check if the paper hold rollers are worn or damaged. Replace the paper hold roller assembly. The gears may be worn or damaged. B Check if the paper feed reduction gear and paper feed gear are worn or damaged. Replace any worn or damaged parts. The paper detection switch assembly may be bad. B Using an oscilloscope, check if the detection signal is output when roll paper is inserted. Replace the paper detection switch assembly. Table 4-2 Troubleshooting table for bad printing Problem Probable cause The printer does not print. (The carriage motor operates, but nothing is printed, or the print color is light.) The ribbon in the ribbon cassette may be bad. Dots are missing continuously. (A specific dot is not printed.) Rev. B Level Checkpoint Action A Check if the color of the ribbon is faded or the ribbon is wrinkled or torn. Replace the ribbon cassette. The platen gap may be incorrect. B Check the platen gap (standard: 0.55 mm ± 0.05 mm). Adjust the platen gap. (See “Adjustments” in Chapter 5.) The common wire of the print head unit may be bad. B Check the continuity of the common wire. Replace the print head unit. The head flexible plastic cable (FPC) may be bad. B Check the continuity of the common line. Replace the head FPC. The head FPC may be bad. B Check the continuity of the head FPC. Replace the head FPC. The drive coil of the print head unit may be bad. B Using a meter, check the resistance of the corresponding drive coil. (Standard: 19.2 ohms ± 5%) Replace the print head unit. The dot wires of the print head unit may be bad. B Check if the dot wires are broken. Replace the print head unit. Troubleshooting 4-11 Confidential Table 4-2 Troubleshooting table for bad printing (Continued) Problem Probable cause Dots are missing occasionally. The head FPC may be bad. The character width is incorrect. Paper is not fed. (Printing is performed on one line.) Paper is not fed. (Printing is performed on one line.) (cont.) 4-12 Troubleshooting Level Checkpoint Action B Check the continuity of the head FPC. Replace the head FPC. The print head unit may be bad. B Check if there are paper particles or ink on the tips of the dot wires of the print head unit. Remove any paper particles or ink, or replace the print head unit. The print head unit may be worn. B The cause is none of the above. Replace the print head unit. Paper particles or foreign substances may be attached to gears, belt driving pulley, or the belt. B Check if any paper particles or foreign substances are attached to the belt driving pulley, belt tension pulley, and belt. Remove any paper particles or foreign substances. The gears, belt driving pulley, or the belt may be damaged or worn. B Check for wear and damage in the belt driving pulley, belt tension pulley, and belt. Replace any worn or damaged parts. The operation of the paper supply may be incorrect. A Check if the specified paper roll is used. Use the correct paper roll. (See “Paper Specifications” in Chapter 1.) The paper path may be incorrect. A Check if the paper supply path is blocked. Remove paper particles and foreign substances. The connector is not inserted correctly. A Make sure that the PF motor cable pins are inserted in connector CN6 of the main circuit board. Reinsert the connector. The paper feed roller may be bad. B Check for wear and damage on the surface of the roller. Replace the paper feed roller. The paper hold roller assembly may be worn or damaged. B Check for wear and damage to the rollers of the paper hold roller assembly. Replace the paper hold roller assembly. Gears may be worn or damaged. B Check for wear and damage to the paper feed reduction gear and paper feed gear. Replace any worn or damaged parts. Paper feed motor assembly may be bad. B Check the continuity of the PF motor cable assembly. Replace the paper feed motor cable assembly. The paper feed motor may be bad. B The cause is none of the above. Replace the paper feed motor. Rev. B Confidential TM-U200 Series (Type B) Service Manual Table 4-2 Troubleshooting table for bad printing (Continued) Problem Probable cause The paper feed pitch is not uniform. Operation of the paper supply may be incorrect. The printer prints, but the ribbon is not fed. Rev. B Level Checkpoint Action A Check if the specified paper roll is used. Use the correct paper roll. (See “Paper Specifications” in Chapter 1.) The paper path may be incorrect. A Check if the paper supply path is blocked. Remove paper particles and foreign substances. The connector is not inserted correctly. A Make sure the PF motor cable pins are inserted in connector CN6 of the main circuit board. Reinsert the connector. The paper feed roller may be worn or damaged. B Check for wear and damage on the surface of the roller. Replace paper feed roller. The paper hold roller assembly may be bad. B Check if the paper hold roller assembly rotates smoothly. Clean and lubricate the paper hold roller assembly or replace it. The paper hold roller assembly may be worn or damaged. B Check for wear and damage to the rollers of the paper hold roller assembly. Replace the paper hold roller assembly. Gears may be worn or damaged. B Check for wear and damage to the paper feed reduction gear and paper feed gear. Replace any worn or damaged parts. The ribbon cassette may be loose. A Check if the ribbon cassette is installed correctly. Install the ribbon cassette correctly. (See “Replacing the Ribbon Cassette” in Chapter 3.) The ribbon cassette may be bad. A Check if the ribbon is fed by rotating the ribbon-tightening knob. Replace the ribbon cassette. The ribbon drive plate assembly may be bad. B Check if the ribbon drive plate assembly moves smoothly. Replace the ribbon drive plate assembly. The clutch portion of ribbon take-up assembly may be worn. B Check whether the ribbon moves smoothly when you turn the upper portion of the ribbon take-up assembly. Replace ribbon take-up assembly. Gears may be worn or damaged. B Check if the ribbon drive assembly, ribbon intermediate gear, ribbon transmission gear, and ribbon take-up assembly are worn or damaged. Replace any worn or damaged parts. B Check if any foreign substances are attached to the gears. Remove the foreign substances. Troubleshooting 4-13 Confidential Table 4-2 Troubleshooting table for bad printing (Continued) Problem Probable cause The print color is mixed. (Half of the character is black and the other half is red.) The ribbon cassette is floating. Color does not change. (Black to red or red to black.) 4-14 Troubleshooting Level Checkpoint Action A Verify that the ribbon cassette is mounted correctly. Mount the ribbon cassette in the correct position. (See “Replacing the Ribbon Cassette” in Chapter 3.) The ribbon is placed incorrectly. A Verify that the ribbon is not placed between the print head mask assembly and paper feed frame assembly. Place the ribbon between the print head unit and print head mask assembly. The ribbon frame assembly is deformed. B Verify that the ribbon frame assembly is not deformed. If deformed, replace the ribbon frame assembly. The ribbon is defective. A Verify that the color of the ribbon is not blurred, or the ribbon is not rumpled or worm Replace the ribbon cassette if the ribbon is worn or the print color is light. The ribbon release spring is unhooked or damaged. B Verify that the ribbon release spring is not unhooked or damaged. If the spring is unhooked, hook it back on. If it is damaged, replace it. The ribbon frame spring is unhooked or damaged. B Verify that the ribbon frame spring is not unhooked or damaged. If the spring is unhooked, hook it back on. If it damaged, replace it. Rev. B Confidential TM-U200 Series (Type B) Service Manual Error Types and Countermeasures Follow the flowcharts on the next page based on the ERROR LED blinking patterns in the table below and repair the printer. The printer does the following when an error occurs: ❏ All operations stop ❏ The printer goes off-line (when DIP SW 1-8 is off). ❏ The ERROR LED blinks. ERROR LED blinking patterns Error Error Description ERROR LED Blinking Pattern Action 160 ms (1) Head high-temperature error ( 1) Print head temperature is too high. Action 1 (2) Home Auto cutter error position detection error There an abnormality indetected the Home is position cannot be auto cutter. due to a paper jam or other problem. Action 2 Memory or gate (3) High-voltage error array read/write error Read/write check has failed. Power supply voltage is too high. Action 3 Low-voltage error (4) High-voltage error Power Power supply supply voltage voltage isistoo toohigh. low. Action 3 4 CPU execution (5) Low-voltage error error CPU issupply trying to execute an low. invalid Power voltage is too address. Action 45 (6) (6) Print CPU head execution error temperature detection error. CPU head is trying to executeisanout invalid Print temperature of address.operating range. normal Action 4 6 error (7) Auto-cutter Thermistor error Abnormality occurs in the There is an abnormality in auto-cutter. detecting the print head temperature or the print head rank can not be read correctly. ** Action 7 4 * ( 1) This error can occur for a short time during normal printing, when the print head reaches a high temperature. No repair Approx. 2.56 sec is necessary in this case. (*1) This error can occur for a short time during normal printing, when the print head reaches a high temperature. No repair is necessary in this case. ** See troubleshooting flowchart. * Rev. B Troubleshooting 4-15 Confidential Action 1 Action 1 Wait for the print head temperature to drop. Has the printer recovered from the error? Yes END No Replace main PCB. OK? Yes No END Replace printer mechanism assembly. END 4-16 Troubleshooting Rev. B Confidential TM-U200 Series (Type B) Service Manual Action 2 Action 2 Are there any chips of paper in the home position sensor? Yes Remove paper. No OK? Yes END Is connector CN5 inserted firmly? No Insert the connector firmly. Yes No OK? Yes Replace printer mechanism assembly. OK? No END Yes END Replace main PCB. END Rev. B Troubleshooting 4-17 Confidential Action 3 Action 3 Turn the printer power off. Does external power supply have proper output voltage rating? (approx. 40 V in no-load condition) No Replace external power supply. Yes No OK? Yes END Replace main PCB. OK? Yes No END Replace printer mechanism assembly. END 4-18 Troubleshooting Rev. B Confidential TM-U200 Series (Type B) Service Manual Action 4 Action 4 Replace main PCB. OK? Yes No END Replace printer mechanism assembly. END Rev. B Troubleshooting 4-19 Confidential 4-20 Troubleshooting Rev. B Confidential TM-U200 Series (Type B) Service Manual Chapter 5 Disassembly, Assembly, and Adjustment Small Part Specifications This section uses abbreviations for small parts, such as screws and washers. The following is a list of these abbreviations and illustrations of the screw types. ❏ CCS-tite Cross-recessed Cup head S-tite self-tapping screw ❏ CBS-tite Cross-recessed Binding head S-tite self-tapping screw ❏ CBB-tite Cross-recessed Binding head B-tite self-tapping screw ❏ CBT-B Cross-recessed Binding head self-tapping screw not fluted class 2 ❏ CP(O) Cross-recessed Pan head screw with outside toothed lock washer ❏ CPS-tite Cross-recessed Path head S-tite self-tapping screw ❏ CPS-tite(O) Cross-recessed Pan head S-tite screw with outside toothed lock washer ❏ CPS-tite(S-P4) Cross-recessed Pan head S-tite self-tapping screw with Spring lock washer and plain washer ❏ CPT-B Cross-recessed Pan head self-tapping screw not fluted class 2 ❏ CPP-tite Cross-recessed Pan head P-tite self-tapping screw Head (top) Head (side) Body Washer (assembled) C (Cross) P (Pan) S-tite (O) B (Bind) T-B C (Cup) B-tite P-tite Rev. B Disassembly, Assembly, and Adjustment 5-1 Confidential Disassembly Removing the fuse 1. Turn off the printer. 2. Disconnect the external power supply. 3. Remove the main cover assembly from the printer. 4. Remove the lower plate from the printer. CPS-tite (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] Fuse 5. Use tweezers to remove the blown fuse. 6. Replace the fuse with a 125 V, 2.0 AT Littelfuse 154002T. 5-2 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Removing the print head unit 1. Remove 4 screws, and remove the upper case. 2. Remove the right side screw securing the auto-cutter fixing plate. Upper case screw Auto-cutter fixing plate 3. Loosen the thumb-screw and remove the head cover. Head cover Thumb-screw Rev. B Disassembly, Assembly, and Adjustment 5-3 Confidential 4. Remove the ribbon frame spring and ribbon frame fixing plate; then remove the ribbon frame assembly. Ribbon frame fixing plate Ribbon frame assembly Ribbon frame spring 5. Remove the screw seuring the print head unit. 6. Disconnect the print head FPC and remove the print head unit. Print head unit Print head FPC Refer to the corresponding assembly section(s) in this chapter for the assembly procedure. 5-4 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Removing the auto-cutter 1. Open the main cover assembly. 2. Remove 1 screw, and remove the auto-cutter cover. Remove the cable connector from the auto-cutter cover (See the second part of the illustration below). Then disconnect the autocutter cable from the cable connector for the auto-cutter. (The illustration does not have the main cover assembly. However, it’s not necessary to remove it.) screw Auto-cutter cover Auto-cutter cable Connector 3. Remove 2 REs. 4. Remove the auto-cutter plate shaft, auto-cutter plate spring shaft, and auto-cutter plate spring. Then remove the auto-cutter. Auto-cutter Auto-cutter plate shaft Auto-cutter plate spring Auto-cutter plate spring shaft Refer to the corresponding assembly section(s) in this chapter for assembly procedure. Rev. B Disassembly, Assembly, and Adjustment 5-5 Confidential Removing the main circuit board assembly 1. Remove the lower plate. lower plate 2. Remove the interface circuit board assembly. Interface circuit board assembly 5-6 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual 3. Disconnect 5 cables. 4. Remove 5 screws. 5. Follow the steps below; then remove the main circuit board assembly. ① Slide the board toward the arrow ①. ② Move the 2 cables toward the arrow ②. ③ Move the board toward the arrow ③. ④ Once the board is released from the plate (marked with ④), the main circuit board can be removed from the printer. connector connectors connectors screws screws Refer to the corresponding assembly sections in this chapter for assembly procedures. Rev. B Disassembly, Assembly, and Adjustment 5-7 Confidential Sub-assembly A Paper feed frame unit assembly 1. Apply G-31 to the middle of the paper hold roller shaft. 2. Pass the paper hold roller shaft through the paper hold plate spring and paper hold roller. Paper hold roller shaft Apply G-31 Paper hold plate spring Paper hold roller 3. Hold the paper feed roller assembly at the angle shown in the illustration and insert the thin end of the shaft into the paper feed frame assembly. Then move the roller assembly into place. Paper feed frame assembly Thin portion Paper feed roller assembly 5-8 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual 4. Attach the paper feed reduction gear to its shaft as shown in the second illustration below. Make sure that the reduction gear is closer to the frame than the roller assembly gear. 5. Next, insert the J feed roller shaft holder (right) into the frame as shown in the illustration. (Paper feed roller assembly) J feed roller shaft holder (right) 6. Fix the J feed roller shaft holder (left) onto the paper feed roller assembly’s shaft, insert it in the frame, and lock it with the RE. RE (2.3) J feed roller shaft holder (left) Paper feed reduction gear Note: The right J feed roller shaft holder, which is fixed to the paper feed roller assembly, is inserted into the frame first; then the left J feed roller shaft holder is attached. Rev. B Disassembly, Assembly, and Adjustment 5-9 Confidential 7. Attach the paper feed motor to the paper feed frame assembly with a screw. Paper feed motor CCS-tite (M3x6) [0.69 to 0.88 N • m (7 to 9 kgf • cm)] Paper feed frame assembly 8. By fitting the U-cut portion of the upper paper guide to the shaft of the paper feed roller assembly, attach the paper guide to the paper feed frame assembly. Press the paper guide until it clicks. ✔ Check that the 2 dowels on the paper feed frame are in the rectangular holes on the upper paper guide. Dowels Paper feed roller assembly’s shaft Rectangular holes U-cut portion Upper paper guide 5-10 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual 9. Insert the ends of the paper hold roller shaft into the paper feed frame assembly, as shown below. Paper feed frame assembly Paper hold roller shaft (assembled) 10. Hook the paper hold springs to the paper feed frame assembly and paper hold roller shaft. Hook the spring on the paper feed motor side first. (If you hook the other side first, the paper hold shaft is hard to hook.) Paper hold spring Paper feed motor Paper feed frame assembly Paper hold roller shaft Rev. B Disassembly, Assembly, and Adjustment 5-11 Confidential ✔ Check that the corner edge of the paper hold plate spring is placed on the paper feed frame assembly as shown in the illustration below. ✔ Check that the paper hold plate spring is not deformed. Paper hold plate spring Corner edge Paper feed frame assembly Main Assembly 1 Ribbon switch lever, ribbon release spring, ribbon release lever, ribbon intermediate gear, ribbon transmission gear, ribbon take-up assembly, and ribbon drive plate assembly 1. Place the ribbon switch lever by fitting its hole onto dowel A of the base frame assembly. While rotating the ribbon switch lever, make sure that the protrusion part does not catch and moves freely. 2. Hook the ribbon release spring to the notch of the ribbon switch lever and hook B of the base frame assembly. 3. Fit the holes of the ribbon release lever to 2 shafts of the base frame assembly; then secure it with the RE. 5-12 Disassembly, Assembly, and Adjustment Rev. B Confidential ✔ TM-U200 Series (Type B) Service Manual Check that the ribbon switch lever and ribbon release lever are attached in the proper directions. Notch Ribbon release lever Ribbon switch lever RE (3) Ribbon release spring A Base frame assembly B 4. Attach the ribbon intermediate gear to the base frame assembly. 5. Attach the ribbon transmission gear and ribbon take-up assembly together to the base frame assembly. 6. Attach the ribbon drive plate assembly to the base frame assembly and fix with the REs. RE (2.3) Ribbon drive plate assembly Ribbon take-up assembly Ribbon transmission gear Ribbon intermediate gear Base frame assembly Rev. B Disassembly, Assembly, and Adjustment 5-13 Confidential Main Assembly 2 Tension plate assembly 1. Insert the tab of the tension plate assembly into the base frame assembly; then slide the tension plate in the direction of arrow 2 to lock it. Tab Tension plate assembly 2 1 Base frame assembly Main Assembly 3 Paper feed frame assembly 1. Place the paper feed frame assembly (sub assembly A) on the base frame assembly so that portion A is aligned with portion B. 2. Press down the paper feed frame assembly until the tabs on the paper feed frame assembly lock into the rectangular holes in the paper feed frame. 5-14 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual 3. Attach the screws. CBT-B (M3x10) [0.49 to 0.69 N • m (5 to 7 kgf • cm)] Paper feed frame assembly Rectangular hole Portion A Paper hold plate spring CBT-B (M3x10) [0.49 to 0.69 N • m (5 to 7 kgf • cm)] Portion A Tab Base frame assembly ✔ Portion B Check that the paper hold plate spring is not caught on the base frame assembly. Main Assembly 4 Carriage motor assembly 1. Fit the A corners of the carriage motor assembly under the B corners of the base frame assembly. Then slide the carriage motor assembly in the direction of the arrow to fit the other two corners of the carriage motor assembly under the tabs of the base frame assembly. A corners Carriage motor assembly B corners Tab positions Base frame assembly Rev. B Disassembly, Assembly, and Adjustment 5-15 Confidential 2. Hook the paper feed motor cable to hook A on the base frame assembly. Make sure to route the cable as shown in the illustration. 3. Route the carriage motor and paper feed motor cables outside the base frame as shown in the illustration. Paper feed motor cable Hook A Paper feed frame Carriage motor cable Main Assembly 5 Carriage sub assembly 1. Fit the belt over the carriage motor sub assembly gear and the tension plate gear. Carriage sub assembly Belt Tension plate gear Carriage motor sub assembly gear 5-16 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Main Assembly 6 Carriage shaft assembly ✔ Pass the carriage shaft through the paper feed frame assembly and carriage sub assembly. At this time, hook the paper hold spring feet to the carriage shaft’s dowels, as shown in the illustration. Paper hold spring hook Carriage subassembly Carriage shaft Paper feed frame assembly ✔ Check that the paper hold spring hooks are hooked in the correct direction. (The direction is different for the right and left springs.) Rev. B Disassembly, Assembly, and Adjustment 5-17 Confidential Main Assembly 7 Adjustment roller shaft holder assembly 1. Attach the adjustment roller shaft holders to the carriage shaft as shown in the illustration. Adjustment roller shaft holder Carriage shaft 2. Push the adjustment roller shaft holders and turn them 90 degrees in the direction of arrow C. The A portion points straight down. ✔ Check that the adjustment roller shaft holders click into place. Carriage shaft C Adjustment roller shaft holder Portion A 5-18 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Main Assembly 8 Carriage guide shaft assembly 1. Insert the carriage guide shaft through the base frame assembly and carriage sub assembly and lock it with the RE. Carriage sub assembly Carriage guide shaft Base frame assembly RE (2.3) Main Assembly 9 Belt tension spring assembly 1. Hook the belt tension spring to the hooks on the tension plate assembly and paper feed frame assembly. 2. Push the carriage motor assembly in the direction of the arrow to make sure the motor is properly placed. Then attach the screw. ✔ Be careful not to move the tension plate assembly when securing the screw. Carriage motor assembly CPS-tite (S-P4) (M3x8) [0.49 to 0.69 N • m (5 to 7 kgf •cm)] Tension plate assembly’s hook Paper feed frame assembly’s hook Belt tension spring Rev. B Disassembly, Assembly, and Adjustment 5-19 Confidential 3. Move the belt tension spring from the paper feed frame’s hook to the base frame hook. Base frame hook Belt tension spring Main Assembly 10 Sensor assembly 1. Insert the sensor portion of the sensor assembly into the base frame assembly; then attach the board by pushing it in. 2. Press the board down to attach it completely. 3. Attach the paper detector switch to the base frame assembly. Paper detector switch Sensor assembly Base frame assembly ✔ Make sure the sensor board is not damaged. 4. Hook the sensor assembly lead wires to the base frame assembly as shown in the illustration. 5-20 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual 5. Position the paper detection switch sub assembly lead wires as shown in the illustrations, and make sure that the lead wires are as close as possible to the base frame surface. Paper detection switch sub assembly lead wires Sensor sub assembly’s lead wires Main Assembly 11 Carriage motor heat sink assembly 1. Attach the carriage motor heat sink to the carriage motor assembly, and turn the heat sink in the direction of the arrow until it stops. ✔ Check that surface B of the carriage motor heat sink and surface A of the paper feed frame are the same height. If not, adjust the heat sink to make the surfaces the same height. Check that the motor cables are not caught on the heat sink. Surface B Carriage motor heat sink Motor cables Surface A Carriage motor assembly Paper feed frame Rev. B Disassembly, Assembly, and Adjustment 5-21 Confidential Main Assembly 12 Print head FPC assembly 1. After folding the projections of print head FPC, insert the FPC under the arm of the base frame assembly while fitting the projections with the arm. 2. Fold the straight side of print head FPC. (See the figure.) 3. Pass the straight side of print head FPC through the slit in the base frame assembly. Projection Print head FPC Straight side Base frame assembly Arm Armsection 4. Pull out the print head FPC from the back of base frame assembly. 5. Adjust the print head FPC from the back of base frame assembly. 6. Pass the end of print head FPC through the guide of base frame assembly. 5-22 Disassembly, Assembly, and Adjustment Rev. B Confidential ✔ TM-U200 Series (Type B) Service Manual The projections of print head FPC must be held with the arm of base frame assembly. Print head FPC processing Hook Main Assembly 13 Print head unit 1. Attach the print head FPC to the print head unit. 2. Place the print head FPC under the hooks on the carriage sub assembly, and then secure the print head unit to the carriage sub assembly with the screw. Rev. B Disassembly, Assembly, and Adjustment 5-23 Confidential 3. Place the print head FPC under the hooks on the carriage sub assembly, and then secure the print head unit to the carriage sub assembly with the screw. CPP-tite (M3x10) [0.49 to 0.69 N • m (5 to 7 kgf • cm)] Print head unit Carriage sub assembly A Print head FPC O-10 application points Hooks ✔ Make sure there is space between the slanting edge of the print head FPC and slanting side of the carriage sub assembly, and between the FPC edge and portion A. If there is no space, the print head FPC may not be inserted into the print head unit firmly. Remove the print head unit and insert the print head FPC again. There must be space Main assembly 14 Left cover fixing plate and right cover fixing plate 1. Attach the dowel of the left cover fixing plate into the hole in the paper feed frame, and secure it with the screw. 5-24 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual 2. Attach the dowel of the right cover fixing plate into the hole in the paper feed frame and secure it with the screw. CCS-tite (M3x6) [0.69 to 0.88 N • m (7 to 9 kgf • cm)] Right cover fixing plate Paper feed frame Left cover fixing plate CCS-tite (M3x6) [0.69 to 0.88 N • m (7 to 9 kgf • cm)] Rev. B Disassembly, Assembly, and Adjustment 5-25 Confidential Main Assembly 15 Ribbon frame earth plate 1. Put the ribbon frame earth plate in the carriage guide shaft. Ribbon frame earth plate Carriage guide shaft Main Assembly 16 Ribbon frame assembly, ribbon frame spring, and ribbon frame fixing plate 1. Apply G-31 to the switching point of the ribbon frame on the ribbon switch lever. (A line of lubrication: length 4 mm x wide 1 mm) 5-26 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual 2. Apply G-31 to the tip of release point of the ribbon frame assembly on the base frame assembly. (A point of lubrication: diameter 1 mm) 3. Apply G-31 to the each ribbon frame assembly mounting shaft (left and right) in the base frame assembly. (A line of lubrication: length 2 mm x wide 1 mm) 4. Attach the shaft (A) and (B) of the base frame assembly to the ribbon frame assembly. 5. Attach the ribbon frame fixing plate into the groove in the right ribbon frame assembly mounting shaft (A). 6. Hook the ribbon frame spring to (C) of the base frame assembly and (D) of the ribbon frame assembly. Ribbon frame fixing plate (D) Ribbon frame assembly Ribbon frame spring Apply G-31 (B) (C) Base frame assembly Apply G-31 Rev. B (A) Apply G-31 Disassembly, Assembly, and Adjustment 5-27 Confidential Main Assembly 17 Thumb-screw and head cover 1. Place the thumb-screw into the hole in the head cover and secure the RE (2.5) in the center of the thumb-screw. 2. Insert the tab of the head cover into the left cover fixing plate first, and then rotate and secure with the thumb-screw while aligning the dowel. Tab Thumb-screw Head cover RE (2.5) Left cover fixing plate Dowel 5-28 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Main Assembly 1 (Case Unit) Lower cutter plate assembly 1. Attach the lower cutter plate to the upper plate and secure it with the screws. CPS-tite (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] Upper plate Rev. B Disassembly, Assembly, and Adjustment 5-29 Confidential Main Assembly 2 (Case Unit) Upper plate assembly 1. Turn over the printer mechanism assembly. 2. Align the rectangular hole with the hook, hole A with dowel B, and then secure the plate with the screw. Upper plate Hole C Hole A Rectangular hole Dowel D Hook Dowel B CBS-tite (M3x5) (0.59 to 0.78 N • m (6 to 8 kgf • cm)] ✔ Make sure hole C is aligned with dowel D. 5-30 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Note: When you remove the upper plate, lift it up in the direction of arrow 1 slightly; then move it in the direction of arrow 2 to release the hook to remove the plate completely. Upper plate Arrow 1 Arrow 2 Hook Main Assembly 3 (Case Unit) Main circuit board assembly 1. Attach the main circuit board assembly to the upper plate by attaching the power switch side first and then the drawer kick-out and power connectors side. Secure the circuit board with the screws. Rev. B Disassembly, Assembly, and Adjustment 5-31 Confidential ✔ Make sure to use the correct screw for each location. CP(0) (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] CPS-tite (M3x6) CP(0)(M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] CPS-tite (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] Main circuit board assembly Power switch Upper plate 5-32 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Main Assembly 4 (Case Unit) Inserting the cables 1. Insert the lead wires of the print head FPC, the sensor assembly, and the auto-cutter assembly into the connectors. 2. Insert the paper feed motor cable into CN6 and the carriage motor cable into CN5. At this time, make sure to insert the cables so that black or red colored side connects to the pin 1 side of each connector. Carriage motor cable Red cable Black cable Main circuit board assembly Paper feed motor cable Print head FPC CN6 CN5 (Pin 1 side) Sensor assembly’s lead wires Auto-cutter assembly’s lead wires ✔ Make sure not to confuse paper feed motor cable and carriage motor cable. Also check that the black or red side of each cable is on the pin 1 side of the connector. Main Assembly 5 (Case Unit) Lower case assembly 1. Attach the lower case to the printer mechanism assembly. It is easy to assemble if you first place portion B of the lower case under portion A of the upper plate. Rev. B Disassembly, Assembly, and Adjustment 5-33 Confidential 2. Bring out the paper feed motor and carriage motor cables through portion C and the sensor assembly lead wires through portion D. 3. Secure the lower case with the screws. [Adjustment] Perform the platen gap adjustment by referring to the Adjustment section at the end of this chapter. Lower case Portion B Portion C Portion D CPT-B (M3x12) [0.59 to 0.78 N • m [6 to 8 kgf • cm)] Portion A Upper plate CPT-B (M3x12) [0.59 to 0.78 N • m [6 to 8 kgf • cm)] Auto-cutter assembly’s lead wires Sensor assembly’s lead wires 5-34 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Main Assembly 6 (Case Unit) Manual cutter assembly and auto-cutter fixing plate 1. Attach the manual cutter to the paper feed frame assembly and secure it with the screw. CBS-tite (M3x5) [0.69 to 0.8 N • m [7 to 9 kgf • cm)] Manual cutter Paper feed frame ✔ Check that the manual cutter is aligned with the paper feed frame as shown in the illustration below. Paper feed frame Manual cutter Rev. B Disassembly, Assembly, and Adjustment 5-35 Confidential 2. While aligning the dowels, install the auto-cutter fixing plate and secure it with the screw. 3. Secure the earth plate with the screw. T CBS-tite (M3x5) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] Auto-cutter fixing plate CP(O) (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] Earth plate 5-36 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Main Assembly 7 (Case Unit) Auto-cutter assembly 1. To attach the auto-cutter assembly to the auto-cutter plate assembly, fit the auto-cutter assembly onto the left dowel of the auto-cutter plate assembly first, and then fit the right side onto the right to match the right dowel. Auto-cutter assembly Dowel Dowel Auto-cutter plate assembly CBS-tite (M3x4) (0.59 to 0.78 N • m (6 to 8 kgf • cm)] The procedure in step 2 below differs depends on if you attach the release lever to the autocutter lock lever or not. See Addendum 3 for information about the release lever. 2. When you attach the release lever: Insert the tab on the auto-cutter lock lever into the slit of the release lever, then attach them into the shaft of the auto-cutter plate assembly. Attach the auto-cutter lock lever spring with the RE (2.3). Slit Tab RE (2.3) Auto-cutter lock lever spring Release lever Auto-cutter lock lever Rev. B Auto-cutter plate assembly Disassembly, Assembly, and Adjustment 5-37 Confidential When you do not attach the release lever: Attach the auto-cutter lock lever with the RE (2.3); then attach the auto-cutter lock lever spring with the RE (2.3). RE (2.3) RE (2.3) Auto-cutter lock lever Auto-cutter lock lever spring 3. Align the auto-cutter plate assembly with the holes of the auto-cutter fixing plate. 4. Attach the auto-cutter plate assembly to the auto-cutter fixing plate. Make sure the holes for the shafts of the auto-cutter plate assembly match the holes in the auto-cutter fixing plate. Insert the hook end of the spring in the hole in the auto-cutter plate assembly first, and the auto-cutter plate spring shaft and auto-cutter plate shaft in the holes of the auto-cutter fixing plate and secure them with the RE (3). Attach the other side of the spring into the hook of the auto-cutter fixing plate. Holes for shafts Auto-cutter plate assembly Auto-cutter plate shaft Hole for spring RE (3) Hook end of spring Hook of auto-cutter fixing plate Auto-cutter plate spring 5-38 Disassembly, Assembly, and Adjustment Auto-cutter plate spring shaft Rev. B Confidential TM-U200 Series (Type B) Service Manual 5. Connect the auto-cutter cable to the cable connector for the auto-cutter. Cable connector of the auto-cutter Auto-cutter cable 6. Insert the connectors you connected in step 6 into the slit in the auto-cutter cover. Insert the cable wires of the auto-cutter into the other slit in the auto-cutter cover. Auto-cutter cover The other slit Slit Rev. B Disassembly, Assembly, and Adjustment 5-39 Confidential 7. While aligning the dowel, install the auto-cutter cover, and secure it with the screw. Arrange the cable wires so that they come through the cut portion shown in the illustration. CBS-tite (M3x5) (0.59 to 0.78 N • m (6 to 8 kgf • cm)] Auto-cutter cover Cut portion Main Assembly 8 (Case Unit) Paper roll receive rollers, upper case, guide roller, and switch panel assemblies 1. The lead wires of the auto-cutter assembly should be arranged as shown in the second part of the illustration below. 2. Apply G-31 to both of the paper roll receive rollers. 3. Attach the paper roll receive rollers to the lower case. 4. While holding the auto-cutter as shown in the illustration, attach the upper case to the lower case and secure it with the screws. 5. Apply G-31 to both ends of the guide roller. 6. Attach the guide roller to the upper case. 5-40 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual 7. Remove any dust and dirt from the switch panel mounting surface and paste the switch panel on the upper case. Apply G-31 CPT-B (M3x12) CPT-B (M3x12) [0.59 to 0.78 N • m [6 to 8 kgf • cm)] Switch panel Guide roller Upper case Apply G-31 Apply G-31 Paper roll receiver rollers Lower case Rev. B Disassembly, Assembly, and Adjustment 5-41 Confidential 5-42 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Main Assembly 9 (Case Unit) Interface circuit board assembly and connector plate 1. Turn over the printer. 2. Attach the connector plate to the interface circuit board assembly and secure with the hexagon lock screws (serial interface) or the CPS-tite screws (parallel interface). 3. Connect the interface circuit board assembly to the main circuit board assembly and secure with the screws Serial Interface. CP(0) (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] Hexagon lock screws [0.39 to 0.59 N • m (4 to 6 kgf • cm)] Connector plate CP(0) (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] Interface circuit board assembly Main circuit board assembly Rev. B Disassembly, Assembly, and Adjustment 5-43 Confidential Parallel Interface CPS-tite(M3✕6) (4 to 6 kgf • cm) Interface circuit board assembly ✔ Check that the interface board assembly is firmly connected to the main circuit board assembly. 5-44 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Main Assembly 10 (Case Unit) Lower plate, ROM cover, and rubber foot assembly The procedures in this section differ depends on if an EP-ROM is used or a flash memory is used on the main circuit board. See Addendum 1 in this manual for more detail about the main circuit board. For EP-ROM equipped main circuit board 1. Attach the lower plate to the lower case and secure it with the screws. Note: There are two different lower plates, one has an L-shaped hole, and the other has a rectangle hole to attach the ROM cover. Use the lower plate having L-shaped hole for the printer with EP-ROM equipped main circuit board. See Addendum 2 for the description about the change on the lower plate. 2. Affix the ROM spacer to the ROM cover, then attach the ROM cover to the lower plate and secure it with the screws. 3. Attach the rubber feet to the lower case. For the rubber foot attached to the front of the printer, turn the foot lightly until it stops. CPS-tite (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] Rubber foot Rubber foot (at the front of the printer) Lower case ROM spacer Lower plate ROM cover Rev. B Disassembly, Assembly, and Adjustment 5-45 Confidential For flash memory equipped main circuit board 1. Attach the lower plate to the lower case and secure it with the screws. 2. Attach the ROM cover to the lower plate and secure it with the screws. 3. Attach the rubber feet to the lower case. For the rubber foot attached to the front of the printer, turn the foot lightly until it stops. CPS-tite (M3x6) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] Rubber foot Rubber foot (at the front of the printer) Lower case Lower plate ROM cover Main Assembly 11 (Case Unit) Main cover assembly 1. Secure the hinge assembly to the main cover assembly with the screws (2 portions). 5-46 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual 2. Secure the hinge assembly of the main cover assembly to the upper case with the screws (2 portions). Main cover assembly CPT-B (3x12) (0.59 to 0.78 N • m (6 to 8 kgf • cm)] Hinge assembly CPT-B (3x12) (0.59 to 0.78 N • m (6 to 8 kgf • cm)] Upper case Main Assembly 12 (Case Unit) Near-end detector assembly (optional) 1. Attach the near-end detector lever to the near-end detector frame. Rev. B Disassembly, Assembly, and Adjustment 5-47 Confidential 2. Connect the lead wire assembly’s connector to the near-end detector and attach it to the near-end detector frame with the screw. CBB-tite (M2x8) [0.1 to 0.2 N • m (1 to 2 kgf • cm)] Near-end detector Lead wire assembly Near-end detector frame Near-end detector lever 3. Decide whether you want to install the spacers. The amount (A) of paper remaining (including the paper roll core) when the near-end detector senses a paper near-end is changed by the spacers. d A The amount (A) with the spacers: 3 to 4 mm (0.12 to 0.16”) The amount (A) with the spacers: 6 mm (0.24”) The value of (A) is obtained by calculation only. Therefore, it may not be appropriate for all printers. 5-48 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual 4. Attach the spacers (if desired) and near-end detector assembly to the lower case and secure them with the screws. Make sure the spacers are positioned in the correct direction, as shown in the illustration. Connector CN11 Round corner Round corner of spacer Near-end detector assembly CPT-B (M3x12) [0.59 to 0.78 N • m (6 to 8 kgf • cm)] 5. Insert the near-end detector’s lead wires into the connector. Near-end detector’s lead wires ✔ Make sure to arrange the lead wires as shown in the illustration. 6. The inner diameter of the paper core should be 10.5 to 12.5 mm (0.41 to 0.49”). Rev. B Disassembly, Assembly, and Adjustment 5-49 Confidential ✔ After assembling the near-end detector assembly, make sure the near-end detection lever moves smoothly. Adjustment Platen gap adjustment 1. Turn the ribbon frame knob in the direction of the arrow to remove the ribbon frame assembly from the printer and remove the manual cutter. 2. Move the print head unit so that it is 1 to 2 cm (0.39 to 0.79”) from portion A of the paper hold plate spring and insert the scaling gauge between the print head unit and platen. 3. Measure the space and if the value is out of the standard range [0.55 mm ± 0.05 mm (0.022”± 0.002”)], turn the adjustment roller shaft holders to get a value within the specified range. 5-50 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual 4. Perform the adjustment at two positions. Ribbon frame assembly Ribbon frame knob Portion A Scaling guage Paper hold plate spring Wide Narrow Print head unit Platen Adjustment roller shaft holder Rev. B Disassembly, Assembly, and Adjustment 5-51 Confidential 5-52 Disassembly, Assembly, and Adjustment Rev. B Confidential TM-U200 Series (Type B) Service Manual Appendix RS-485 Serial Interface Data transmission: Bit serial Synchronization: Asynchronous Handshaking: Depends on the DIP switch settings (DTR/DSR or XON/XOFF control ) Signal levels: 2.0 V to 5.0 V: Logic 1 0.0 V to 0.8 V: Logic 0 Baud rates: Depends on the settings of the TM series printer (2400 to 19200) Data word lengths: Depends on the settings of the TM series printer (7 or 8 bits) Parity settings: Depends on the settings of the TM series printer (None, even, odd) Stop bits: Depends on the settings of the TM series printer (1 or more) NOTES: ❏ Handshaking is set through the DIP switches on TM series printers. The choices indicated in parentheses above are typical choices or a typical range of choices supported by TM series printers. ❏ DR1 > DR2 CS1 > CS2 indicates that: Channel 1 is HIGH. Channel 2 is LOW. ❏ DR1 < DR2 CS1 < CS2 indicates that: Channel 2 is HIGH. Channel 1 is LOW. Signal levels and communication control functions Rev. B CS1 CS2 Function H L Communication is available L H Communication is not available Appendix A-1 Confidential If the electric potential of CS1 is higher than CS2, the TM series printer is ready for communication (the host is ready to receive data). If the electric potential of CS1 is lower than CS2, the TM series printer is not ready for communication (the host is not ready to receive data). DR1 DR2 Function H L Communication is available L H Communication is not available If the electric potential of DR1 is higher than DR2, the TM series printer is ready for communication (the host is ready to receive data). If the electric potential of DR1 is lower than DR2, the TM series printer is not ready for communication (the host is not ready to receive data). A-2 Appendix Rev. B Confidential TM-U200 Series (Type B) Service Manual RS-485 interface connector pin assignments and functions Pin number Signal name I/O Function 1 FG — Frame ground 2 SD1 O Transmit data 3 RD2 O Transmit data 4 RD1 I Receive data 5 RD2 I Receive data 7 SG — Signal ground 8 RD1 O 1) When DTR/DSR is selected, this signal indicates whether the host computer is BUSY or READY. DR1 > DR2 indicates the printer is READY and DR1 < DR2 indicates the printer is BUSY. The BUSY condition can be changed, depending on the off-line conditions set by the DIP switches. When the DTR/DSR control is selected, the printer goes into the BUSY state (DR1 < DR2) under the following conditions: DIP SW Settings Off line Conditions ON OFF 1. During the period from when power is turned on (including resetting using the interface) to when the printer is ready to receive data. BUSY BUSY 2. During the self-test. BUSY BUSY 3. When the cover is open. — BUSY 4. During paper feeding using the paper FEED button. — BUSY 5. When the printer stops printing due to a paper-end. — BUSY 6. When an error has occurred. — BUSY 7. When the receive buffer becomes full. BUSY BUSY 2) When XON/XOFF control is selected: This signal indicates whether the printer is correctly connected and ready to receive data. DR1 > DR2 (READY) indicates the printer is ready to receive data. The signal is always DR1 > DR2, except in the following cases: ❏ During the period after the power is turned on until the printer is ready to receive data. ❏ During the self test. 10 11 CS1 CS2 I This signal indicates whether the host computer is BUSY or READY. CS1 > CS2 indicates the printer is READY and CS1 < CS2 indicates the printer is BUSY. 1) When DTR > DSR is selected: The signal is checked and data is transmitted only when the host is ready to receive data (READY), except for transmissions by GS ENQ, DLE EOT, or GS a. 2) When XON/XOFF control is selected: Transmits data regardless of the status of this signal. NOTES: ❏ Receive buffer full state differs depending on the printer models. Refer to the specifications for the printers. ❏ The data received is ignored when the space in the receive buffer is 0 byte.s Rev. B Appendix A-3 Confidential XON/XOFF Transmission Timing When XON/XOFF control is selected by the DIP switch, the printer transmits XON/OFF to the host according the table below. NOTE: ❏ For the different models, XON/XOFF transmission timing differs, depending on the settings of the off-line conditions by the DIP switches. Refer to the specifications for the printers. XON/XOFF transmission timing Off-line status DIP SW status Printer status XON transmission XOFF transmission ON OFF • When the printer goes on line after turning on the power or reset using the interface. Transmission B Transmission • When the receive buffer is released from the bufferfull state. Transmission Transmission • When the printer switches from off line to on line (*1). — Transmission • When the printer recovers from an error through a command. — Transmission • When the receive buffer becomes full. Transmission Transmission • When the printer switches from on line to off line (*2). Transmission Transmission (*1) ON is not transmitted when the receive buffer is full. (*2) XOFF is not transmitted when the receive buffer is full. NOTE:The XON code is 11H and the XOFF code is 13H. Data Format When Using RS-485 Transmission data (8 bits, no parity) START STOP 1 2 3 4 5 6 7 8 RS-485 Communication data format "H" indicates: Printer transmission data Printer reception data A-4 Appendix SD1 < SD2 RD1 < RD2 Rev. B Confidential TM-U200 Series (Type B) Service Manual "L" indicates: Printer transmission data Printer reception data SD1 > SD2 RD1 > RD2 The transmission data is H = 1, L = 0 Note: This format is used when the UART for RS-232 is connected to the RS-485 driver. Printer reception data level RD1 RD2 Read data H L Receiving data line is at the LOW level L H Receiving data line is at the HIGH level Printer transmission data level Rev. B SD1 SD2 Send data H L Sending data line is at the LOW level L H Sending data line is at the HIGH level Appendix A-5 Confidential Parts Layout Main circuit board There are three types for the main circuit board parts layout, type D, AD, and CD. To distinguish the types, see Addendum 1 of this manual. Main circuit board (type D) There are two different parts layouts for the D-type main circuit board. One is for the board using standard size of devices like a resistor having lead wires on its both sides. The other is for the new board using small size of devices called chip device which does not have any lead wires. This is the layout for the D-type board using standard size of devices: A-6 Appendix Rev. B Confidential TM-U200 Series (Type B) Service Manual This is the layout for the D-type board using chip devices: Rev. B Appendix A-7 Confidential Main circuit board (type AD) A-8 Appendix Rev. B Confidential TM-U200 Series (Type B) Service Manual Main circuit board (type CD) Rev. B Appendix A-9 Confidential RS-232 Serial Interface Circuit Board A-10 Appendix Rev. B Confidential TM-U200 Series (Type B) Service Manual IEEE 1284 Parallel Interface Circuit Board Rev. B Appendix A-11 Confidential RS-485 Serial Interface Circuit Board A-12 Appendix Rev. B Confidential TM-U200 Series (Type B) Service Manual Appendix Circuit Diagrams Main Circuit Board There are three types for the main circuit board diagram, type D, AD, and CD. To distinguish the types, see Addendum 1 of this manual. Rev. B Appendix A-13 Confidential TM-U200 Series (Type B) Service Manual Main circuit board diagram (type D) There are two different diagrams for the D-type main circuit board diagram. One is for the board using standard size of devices like a resistor having lead wires on its both sides. The other is for the new board using small size of devices called chip device which does not have any lead wires. This is the diagram for the D-type board using standard size of devices: +5V +5V +5V DSR RST #25 RST #RST +5V +24B +5V R27 R49 DSR OR #25 R50 + 2 4 B Q31 D26 CR A/DSW1 D25 Q15 U9 1 C42 + 5 V R44 IN 3 Q32 D14 5 OUT C NC GND D1 #4 DSW1 U5 GND 21 WR ALE RD RD 33 60 61 RESET X1 ALE RD WR X2 24 PF D/DSW8 PF C/DSW7 PF B/DSW6 PF A/DSW5 CR D/DSW4 CR C/DSW3 CR B/DSW2 CR A/DSW1 GND 25 X1 2 MCE MCE C15 29 28 27 17 P77 P76 P75 P71 A[8..18] CNN18 RM6 W R JN2 A 1 8 2 3 4 5 C24 A18 A17 A16 U7 C25 UN11 DK2 # R S T CLK/DTR RTS DET CTS R14 R1 R43 R52 1 JN1 #RST DSR RST #25 RST RES RD SD A17 A14 A13 A8 A9 A11 RD A10 PCE AD7 AD6 AD5 AD4 AD3 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VCC WE/A18 A17 A14 A13 A8 A9 A11 OE A10 CE DQ7/D7 DQ6/D6 DQ5/D5 DQ4/D4 DQ3/D3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A18/NC A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ0/D0 DQ1/D1 DQ2/D2 GND 1 0 U8 A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 AD0 AD1 AD2 A14 A13 A8 A9 A11 RD A10 MCE AD7 AD6 AD5 AD4 AD3 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VCC A14 A13 A8 A9 A11 OE A10 CE D7 D6 D5 D4 D3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 GND Q 3 4 7 8 D 13 14 17 V C C 2 0 A11 A10 A9 A8 46 45 44 43 120nS G N D AD3 AD2 AD1 AD0 38 37 36 35 RD CLK/DTR SD 18 19 20 31 13 77 79 16 DET RES CTS RTS AD[0..7] Q16 D22 A[0..7] GND P G + + + . N 2 5 2 G D 4 V 4 A I N RD CLK/DTR SD R10 R11 R12 +5V Q29 1 CN2 SG DKD 2P +24V DKD SW DKD 1P FG 6 5 4 3 2 1 P.G DK2 +24A DKS DK1 R47 9 8 DK1 7 6 DK2 5 4 1 3 5 2 4 +5V D8 DET RES RTS CTS DKD1 R48 3 AD3 AD2 AD1 AD0 P72/RXD1 P73/SCLK1 P74/TXD1 P81/INT0 P66/AN6 P54/INT2/TI5 P55/WAIT/TO1 P70 DKD1 DKD2 DK S 9 6 7 4 5 PFCOM SW CRCOM SW +24COM SW 76 74 73 PLED/DSW0 ELED/DSW9 PF SW 80 1 32 D46 55 54 53 52 CR D/DSW4 CR C/DSW3 CR B/DSW2 CR A/DSW1 Q38 Q28 WDTOUT R13 R28 72 71 70 69 68 67 66 65 64 P50 P47 P46 P45 P44 P43 P42 P41 P40 Q34 Q19 Q18 Q20 +5V +24DT + 5 V R8 R46 D50 D34 PF D/DSW8 + 2 4 B 9 6 7 4 5 3 2 1 0 R45 D27 C29 D28 +5V G N D C19 HEAD1 Q5 Q4 5 AVCC AVCC D32 HEAD5 6 C31 GND 75 34 15 +5V Q7 Q6 C32 P80/WDTOUT NMI CLK EA 9 6 7 4 5 2 3 +5V P L E D / D S W 0 E L E D / D S W 9 Q35 D40 P E L L E E D D / / D D S S WW 0 9 Q13 D44 HEAD4 G + N 5 D V R20 + + 2 2 4 4 B C Q12 Q9 P F R41 Q36 Q8 S W +24DT (POWER) D13 SW2 D42 GND R15 (PAPER) D12 8 6 4 2 Q11 7 5 3 1 8 9 6 7 4 D43 HEAD8 D11 1 RM4 (FEED) R55 1 G N D D41 HEAD7 1 1 5 2 (ERROR) C17 5 2 +24COM SW D47 VIN VOUT SW G SEN N D C14 +24A HEAD COM A/C COM DKD COM 3 +24A +24B +24C +5V GND 4 R40 +5V RE C45 +5R CN8 R36 1 2 3 4 REC C16 R37 Q2 HP DET R38 HPC 1 2 3 4 +5V H.P GND R.E R39 GND CRCOM SW D7 QM2 2 +24A +24B +24C +5V GND 1 R6 + 2 4 A 3 1 0 D45 2 2 D4 U2 +24DT FG #2 #4 #6 #8 COM(#4,6,8) #9 COM(#1,2,9) THEM1 THEM2 COM(#3,5,7) #5 #7 #1 #3 HEAD3 R5 G N D CN7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 0 GND + 2 4 D T U2-U4 with heat sink 8 6 4 2 D39 HEAD2 C4 78 51 23 VSS VSS VSS 1 8 RM3 7 5 3 1 HEAD6 VCC VCC VCC QM1 D38 C30 Q10 Q1 D10 +24C HEAD9 GND (ROTOR) PF A PF C PF COM PF B PF D 1 2 3 4 5 R19 AC RST AC1/DSEL AC2/DSEL R56 Q24 1 2 3 4 5 HD T R54 +5V CN6 8 D37 WDTOUT R59 8 6 4 2 R18 C33 +24A +5V GND Q27 QM4 1 7 5 3 1 PF B/DSW6 +5V C39 +24A +5V GND D35 D33 HEAD9 HEAD1 HEAD2 HEAD3 HEAD4 HEAD5 HEAD6 HEAD7 HEAD8 14 3 4 DKS F.G PF A/DSW5 PF C/DSW7 7 V DTC 8 HD TEMP 9 NE 11 RE 12 HP DET P67/AN7 P100 P101 P56/INT3/TI2 P57/TO3 P82 DK S D2 QM3 +24C P60/AN0 P61/AN1 P62/AN2 P64/AN4 P65/AN5 P53/INT1/TI4 P52/TO5 P51/TO4 30 2 22 26 R29 AC2/DSEL (ROTOR) CR A CR C CR COM CR B CR D 1 2 3 4 5 Q39 RM2 P32 P33 P63/AN3 DKD2 PF D/DSW8 PF C/DSW7 PF B/DSW6 PF A/DSW5 1 2 3 4 5 3 1 0 D36 Q21 AVSS 62 63 10 59 58 57 56 CN5 8 2 D24 2 1 0 QM5 P.G +24IN D31 CR D/DSW4 D23 HEAD[1..9] Q30 D15 8 6 4 2 CR/PF[A..D] & DSW[1..8] AD7 AD6 AD5 AD4 RM5 P G + + + . N 2 5 2 G D 4 V 4 A I N Q17 D21 AC1/DSEL P23/M03 P22/M02 P21/M01 P20/M00 A11 A10 A9 A8 C40 + 5 V U8 with IC SOCKET GND A15 A14 A13 A12 42 41 40 39 AD7 AD6 AD5 AD4 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 18 19 2 5 6 9 12 15 16 50 49 48 47 P93/M13 P92/M12 P91/M11 P90/M10 11 1 G G N OC D A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 AD0 AD1 AD2 A15 A14 A13 A12 120nS DKS DK1 7 5 3 1 CR B/DSW2 D20 #8 #1 A18 A17 A16 CN4 1 RM1 C26 4 D9 D30 D19 C28 GND WR PCE R21 R25 R24 D29 D18 PLED/DSW0 ELED/DSW9 UN12 R26 Q14 CR C/DSW3 D16 #1 D # # S 2 R R 5 S T R R S S T T RD 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 DSW2 D17 C27 4 2 D48 NE R53 R16 R7 1 2 C44 C46 C22 D3 Q3 GND GND C23 U3 PFCOM SW D49 +24A 5 +24IN P.G 2 F1 VIN VOUT SW G SEN N D D6 +24B CR COM 3 CN1 +30V GND N.C F.G CN11 U6 AC1/DSEL AC2/DSEL C7 1 2 R57 R58 125V,T2A 1 2 3 4 1 2 3 SH +24DT 1 2 NEC 4 1 IN1 IN2 C6 VM OUTA OUTA GND 7 3 5 4 1 2 N.E GND 1 2 GND GND C10 +5V C20 C11 CN9 R34 P.G GND C12 L1 R35 R17 AC RST D5 1 2 3 4 1 2 3 4 AC M1 AC M2 GND AC RES 1 2 U4 C21 5 R9 2 VIN VOUT SW G SEN N D C13 F.G FG 3 +24C PF COM 4 GND C9 1 GND C8 GND R42 +5V U1 SW1 +5I 1 10 2 IN OUT LIN +5V 1 6 1 G 5 C1 C41 C5 C3 GND C2 GND Rev. B 1 Appendix A-14 Confidential TM-U200 Series (Type B) Service Manual This is the diagram for the D-type board using chip devices: +5V +5V +5V DSR RST #25 RST #RST +5V +24B +5V R27 R49 DSR OR #25 R50 + 2 4 B Q31 D26 CR A/DSW1 D25 Q15 U9 1 + 5 V IN 3 C42 R44 D14 5 OUT C NC GND Q32 D1 #4 C26 DSW1 U5 GND WR GND 21 WR ALE RD RD 4 33 60 61 MCE RESET X1 ALE RD WR X2 MCE C15 29 28 27 17 P77 P76 P75 P71 A[8..18] CNN18 RM6 W R JN2 2 3 4 5 C24 A18 A17 A16 U7 C25 UN11 DK2 # R S T CLK/DTR RTS DET CTS R14 R1 R43 R52 1 A 1 8 JN1 #RST DSR RST #25 RST RES RD SD A17 A14 A13 A8 A9 A11 RD A10 PCE AD7 AD6 AD5 AD4 AD3 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VCC WE/A18 A17 A14 A13 A8 A9 A11 OE A10 CE DQ7/D7 DQ6/D6 DQ5/D5 DQ4/D4 DQ3/D3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A18/NC A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ0/D0 DQ1/D1 DQ2/D2 GND 1 0 U8 A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 AD0 AD1 AD2 A14 A13 A8 A9 A11 RD A10 MCE AD7 AD6 AD5 AD4 AD3 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VCC A14 A13 A8 A9 A11 OE A10 CE D7 D6 D5 D4 D3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 GND 24 X1 120nS AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 18 19 2 5 6 9 12 15 16 Q 3 4 7 8 D 13 14 17 V C C 2 0 50 49 48 47 A11 A10 A9 A8 46 45 44 43 AD7 AD6 AD5 AD4 42 41 40 39 AD3 AD2 AD1 AD0 38 37 36 35 RD CLK/DTR SD 18 19 20 31 13 77 79 16 A15 A14 A13 A12 G N D DET RES CTS RTS AD[0..7] Q16 D22 A[0..7] GND P G + + + . N 2 5 2 G D 4 V 4 A I N RD CLK/DTR SD R10 R11 R12 +5V Q29 1 SG DKD 2P +24V DKD SW DKD 1P FG 6 5 4 3 2 1 P.G DK2 +24A DKS DK1 R47 9 8 DK1 7 6 DK2 5 4 1 3 5 2 4 +5V D8 DET RES RTS CTS DKD1 R48 3 7 P72/RXD1 P73/SCLK1 P74/TXD1 P81/INT0 P66/AN6 P54/INT2/TI5 P55/WAIT/TO1 P70 DKD1 DKD2 DK S PFCOM SW CRCOM SW +24COM SW 76 74 73 PLED/DSW0 ELED/DSW9 PF SW 80 1 32 D46 CR D/DSW4 CR C/DSW3 CR B/DSW2 CR A/DSW1 72 71 70 69 68 67 66 65 64 P50 P47 P46 P45 P44 P43 P42 P41 P40 Q28 WDTOUT R13 R28 Q34 3 Q19 Q18 D35 D33 Q20 +5V +24DT + 5 V R8 R46 D50 7 5 2 3 1 0 R45 D27 C29 D28 +5V C19 HEAD1 Q5 Q4 5 AVCC D32 HEAD5 6 C31 GND 75 34 15 +5V Q7 Q6 C32 P80/WDTOUT NMI CLK EA 9 6 7 4 5 2 3 P L E D / D S W 0 E L E D / D S W 9 Q35 D40 P E L L E E D D / / D D S S WW 0 9 +5V Q13 D44 HEAD4 G + N 5 D V R20 + + 2 2 4 4 B C 1 (POWER) D13 Q12 Q9 P F R41 Q36 Q8 S W SW2 D42 GND R15 (PAPER) D12 1 RM4 (FEED) 8 6 4 2 Q11 7 5 3 1 8 9 6 7 4 D43 HEAD8 D11 G N D D41 HEAD7 R55 1 5 2 (ERROR) C17 2 2 D4 U2 5 2 +24COM SW D47 VIN VOUT SW G SEN N D C14 +24A HEAD COM A/C COM DKD COM 3 +24A +24B +24C +5V GND 4 R40 +5V RE R6 C45 +5R CN8 R36 1 2 3 4 REC C16 R37 Q2 HP DET R38 HPC 1 2 3 4 +5V H.P GND R.E R39 GND CRCOM SW D7 QM2 2 +24A +24B +24C +5V GND 1 + 2 4 A 3 1 0 D45 R5 +24DT FG #2 #4 #6 #8 COM(#4,6,8) #9 COM(#1,2,9) THEM1 THEM2 COM(#3,5,7) #5 #7 #1 #3 HEAD3 1 +24DT G N D CN7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 0 GND + 2 4 D T U2-U4 with heat sink 8 6 4 2 D39 HEAD2 C4 78 51 23 VSS VSS VSS 1 8 RM3 7 5 3 1 HEAD6 VCC VCC VCC QM1 D38 C30 Q10 Q1 D10 +24C HEAD9 GND (ROTOR) PF A PF C PF COM PF B PF D 1 2 3 4 5 R19 AC RST AC1/DSEL AC2/DSEL R56 Q24 1 2 3 4 5 HD T R54 +5V 9 6 D37 WDTOUT R59 CN6 8 4 D34 PF D/DSW8 + 2 4 B 8 6 4 2 R18 C33 +24A +5V GND Q27 QM4 1 7 5 3 1 PF B/DSW6 +5V C39 +24A +5V GND PF A/DSW5 G N D DKS F.G Q39 PF C/DSW7 HEAD9 HEAD1 HEAD2 HEAD3 HEAD4 HEAD5 HEAD6 HEAD7 HEAD8 14 3 4 AVCC P56/INT3/TI2 P57/TO3 P82 DK S D2 (ROTOR) CR A CR C CR COM CR B CR D 1 2 3 4 5 QM3 +24C P67/AN7 P100 P101 P53/INT1/TI4 P52/TO5 P51/TO4 30 2 22 26 R29 AC2/DSEL 7 V DTC 8 HD TEMP 9 NE 11 RE 12 HP DET P60/AN0 P61/AN1 P62/AN2 P64/AN4 P65/AN5 P32 P33 P63/AN3 DKD2 55 54 53 52 Q38 RM2 AVSS 62 63 10 PF D/DSW8 PF C/DSW7 PF B/DSW6 PF A/DSW5 1 2 3 4 5 5 1 0 D36 Q21 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 59 58 57 56 2 1 0 QM5 P.G +24IN 9 6 2 D24 CN5 8 4 D31 CR D/DSW4 D23 HEAD[1..9] Q30 CN2 8 6 4 2 CR/PF[A..D] & DSW[1..8] RM5 D15 Q17 D21 AC1/DSEL P23/M03 P22/M02 P21/M01 P20/M00 A11 A10 A9 A8 C40 + 5 V U8 with IC SOCKET GND P G + + + . N 2 5 2 G D 4 V 4 A I N 7 5 3 1 CR B/DSW2 D20 #8 PF D/DSW8 PF C/DSW7 PF B/DSW6 PF A/DSW5 CR D/DSW4 CR C/DSW3 CR B/DSW2 CR A/DSW1 GND 25 P93/M13 P92/M12 P91/M11 P90/M10 11 1 G G N OC D A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 AD0 AD1 AD2 A15 A14 A13 A12 120nS DKS DK1 1 #1 2 A18 A17 A16 CN4 D9 D30 D19 RM1 UN12 R21 R25 R24 D29 D18 PLED/DSW0 ELED/DSW9 C28 PCE R26 Q14 CR C/DSW3 D16 #1 D # # S 2 R R 5 S T R R S S T T RD 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 DSW2 D17 C27 4 2 D48 NE R53 R16 R7 1 2 C44 C46 C22 D3 Q3 GND GND C23 U3 PFCOM SW D49 +24A 5 +24IN P.G 2 F1 VIN VOUT SW G SEN N D D6 CN1 +30V GND N.C F.G CN11 +24B CR COM 3 U6 AC1/DSEL AC2/DSEL C7 1 2 R57 R58 125V,T2A 1 2 3 4 1 2 3 SH +24DT 1 2 NEC 4 1 IN1 IN2 C6 VM OUTA OUTA GND 7 3 5 4 1 2 N.E GND 1 2 GND GND C10 +5V C20 C11 CN9 R34 P.G GND C12 L1 R35 R17 AC RST D5 1 2 3 4 1 2 3 4 AC M1 AC M2 GND AC RES 1 2 U4 C21 5 R9 2 VIN VOUT SW G SEN N D F.G FG 3 +24C PF COM 4 GND 1 C13 C9 GND C8 GND R42 +5V U1 SW1 +5I 1 10 2 IN OUT LIN +5V 1 6 1 G 5 C1 C41 C5 C3 GND C2 GND Rev. B 1 Appendix A-15 Confidential TM-U200 Series (Type B) Service Manual For the main circuit board that the DSW2 is type AD +24B DSR RST #25 RST CLKREQ C15 PCE2 TP161 PCE1 TP160 C18 A16/DSW11 A15 A14 A13 A12 A11 A10 A9 #RST DSR RST #25 RST RES/DSW6 RD SD R26 R21 R25 R24 WR +5V +5V C41 A19/DSW8 A18/BTDET A8 A7 A6 A5 A4 A3 A2 CLK_REQ CLK/DTR RTS DET CTS R104 R14 R1 R43 R52 DK2 U101 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 A15 A14 A13 A12 A11 A10 A9 A8 NC NC WE RESET NC NC RY/BY A18/NC A17 A7 A6 A5 A4 A3 A2 A1 A16 BYTE VSS D15/A-1 D7 D14 D6 D13 D5 D12 D4 VCC D11 D3 D10 D2 D9 D1 D8 D0 OE VSS CE A0 C24 +5V C40 AD6 C25 AD5 AD4 28 27 26 25 24 23 22 21 20 19 18 17 16 15 A13 A8 A9 A11 RD A10 PCE1 AD7 AD6 AD5 AD4 AD3 AD3 AD2 AD1 AD0 RD PCE2 A1 VCC A14 A13 A8 A9 A11 OE A10 CE D7 D6 D5 D4 D3 TP7 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 DK1 DK1 #RST 1 Q114 3 R117 A7 A6 A5 A4 A3 A2 A1 A0 2 5 6 9 12 15 16 19 20 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 D0 D1 D2 D3 D4 D5 D6 D7 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 3 4 7 8 13 14 17 18 P.G 2 DK2 TP123 R118 1 TP27 3 Q115 1 DM133 6 2 5 3 4 TP124 2 3 1 5 38 37 36 35 +24IN DKD1 PLED/DSW0 ELED/DSW9 PF SW 62 63 10 76 74 73 80 1 32 TP56 WDTOUT +5V R13 Q34 DK S 5 TP36 5 2 D47 C14 SW TP35 2 5 TP37 4 DM128 1 3 2 P50 P47 P46 P45 P44 P43 P42 P41 P40 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 72 71 70 69 68 67 66 65 64 7 P60/AN0 8 P61/AN1 9 P62/AN2 11 P64/AN4 12 P65/AN5 HEAD9 HEAD1 HEAD2 HEAD3 HEAD4 HEAD5 HEAD6 HEAD7 HEAD8 1 2 3 4 1 30 2 22 26 SEN 4 14 P67/AN7 3 P100 4 P101 AVCC AVSS P32 P33 P63/AN3 R45 5 C31 C32 AVCC HEAD1 C33 HEAD5 2 3 5 TP138 1 TP65 3 HEAD2 TP66 5 Operation Panel TP38 VIN SW VOUT SEN CR COM 4 TP54 SW2 GND SW SEN F.G 4 POWER SW SW1 R114 2 1 10 4 5 2 3 CN6 PF PF PF PF PF 1 2 3 4 5 A C COM B D D10 3 2 4 3 TP68 3 HEAD7 TP69 5 1 D12 D11 GREEN RED RED (ERROR) DM134 4 2 3 TP153 RM101 DM131 1 5 2 4 3 5 6 7 8 8 9 6 7 4 5 2 3 2TP147 5 TP10 HP DET TP11 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 TP155 6 DM132 1 5 2 4 3 RM102 4 3 2 1 C17 TP151 8 9 6 7 4 5 2 3 TP152 TP148 R40 SENSOR +5R 1W R36 REC 1 2 3 4 R37 R38 HPC R53 TP12 QM108 2 TP15 3 5 1 2 TP16 5 1 R108 TP71 TP72 CN8 1 2 3 4 +5V H.P GND R.E R16 C44 C46 R107 3 FG #2 #4 #6 #8 COM(#4,6,8) #9 COM(#1,2,9) THEM1 THEM2 COM(#3,5,7) #5 #7 #1 #3 1 (FEED) AC2/DSEL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QM2 5 6 7 8 C23 TP13 CN7 Q13 TP149 TP150 3 RE R101 TP154 TP146 1 TP9 6 TP145 2 HEAD QM1 4 3 2 1 TP144 Q101 QM106 TP70 1 1 DM129 4 2 3 C106 N.E SEN. +24A R106 C107 6 2 8 R109 4 TP78 R35 QM100 NEC 1 2 10 CN11 1 2 N.E GND 7 3 C20 9 5 1 AUTO CUTTER 1 2 3 4 CN9 1 2 3 4 AC M1 AC M2 GND AC RES C21 +5V U1 10 IN G 1 7 C9 C8 +5I 6 PF COM 1 2 +24C 3 PF MOTOR 1 2 3 4 5 DM110 1 TP142 +5V R56 D13 (PAPER) R15 AC RST D5 VOUT 2 R34 U4 9 3 2 PF_D TP141 C22 QM113 VIN 5 R41 nPFCOM R17 8 DM109 +5V +5V HEAD3 1 TP140 AC1/DSEL C6 DM130 TP143 TP67 NE TP40 QM109 (POWER) C7 3 R39 C10 5 6 +5V +5V R54 +24B 3 3 2 PF_B +5V PF SW TP53 R55 U3 5 1 +5V DM108 1 TP139 PF SW 2 2 2 nPFCOM +24A +24B +24C 5 TP75 QM104 HEAD6 HEAD4 P80/WDTOUT NMI CLK EA 3 8 7 6 5 +5V TP137 2 TP64 C4 C16 GND L1 DM122 4 TP63 nPFCOM +24A +24B +24C D3 1 C11 C12 1 3 QM105 ELED/DSW9 A C COM B D +24C +5V PLED/DSW0 CR CR CR CR CR QM3 QM4 3 1 +5V +5V R8 C30 75 VCC 34 VCC 15 VCC P56/INT3/TI2 P57/TO3 P82 5 CN5 1 2 3 4 5 HD T C19 TP52 78 VSS 51 VSS 23 VSS 4 +24C R19 GND P53/INT1/TI4 P52/TO5 P51/TO4 7 DM107 1 TP73 TP74 TP76 C29 AC RST AC1/DSEL AC2/DSEL 6 6 1 2 3 4 5 TP101 1/16W R18 TP14 P.G 1 OUT 6 LIN C1 5 C2 C3 Rev. B AVCC TP51 P72/RXD1 P73/SCLK1 P74/TXD1 P81/INT0 P66/AN6 P54/INT2/TI5 P55/WAIT/TO1 P70 1 2 3 4 TP132 1 RM103 QM103 D50 9 TP50 V DTC HD TEMP NE RE HP DET +5V C45 +24DT 2 5 +5V R46 8 2 R102 TP131 2 QM107 HEAD COM A/C COM DKD COM 3 1 F1 PF C/DSW7 +24DT 8 7 6 5 TP159 +5V 3 HEAD[1..9] A11 A10 A9 A8 HEAD9 +24A VOUT 1 R7 D6 1 2 3 SH 1 PF A/DSW5 D/DSW4 C/DSW3 B/DSW2 A/DSW1 4 3 2 CN1 5 Q117 +24DT GND 4 TP34 nPFCOM +30V GND N.C F.G AC1/DSEL R29 TP49 HEAD8 VIN R6 QM110 DC.CON. 2 TP31 D4 U2 TP55 PFCOM 3 2 +5V R5 +24DT CRCOM AC2/DSEL +5V TP32 GND 2 Q1 +24COM SW DKD1 DKD2 DK S U2-U4 with heat sink 1 4 TP20 TP21 TP22 TP23 18 19 20 31 13 77 79 16 CR CR CR CR QM112 3 3 2 #1 4 DM121 TP158 1 TP57 1 +24A R59 QM115 DET CLK_REQ CTS RTS DET 6 7 CLK_REQ RTS 5 CTS 8 WDTOUT 3 TP17 TP18 TP19 PFCOM CRCOM +24COM SW TP30 D108 +5V A15 A14 A13 A12 A19/DSW8 PF_C/DSW7 RES/DSW6 PF A/DSW5 DM101 C39 TP79 P.G RM5 RES/DSW6 RD CLK/DTR SD +5V DKS P77 P76 P75 P71 X1 TP128 CR MOTOR 1 2 3 4 RM104 Q113 3 2 TP127 D9 TP156 TP157 QM102 +5V 1 DKD2 +5V R28 F.G +5V 3 2 4 1 TP29 R113 46 45 44 43 AD3 AD2 AD1 AD0 1 OC 11 G TP28 QM111 A11 A10 A9 A8 42 41 40 39 10 4 RD 3 CLK/DTR 2 SD 1RES/DSW6 50 49 48 47 AD7 AD6 AD5 AD4 TP25 R112 P.G DK2 +24AD DKS DK1 RM105 5 6 7 8 +5V A15 A14 A13 A12 25 59 P93/M13 58 P92/M12 57 P91/M11 56 P90/M10 55 P23/M03 54 P22/M02 53 P21/M01 52 P20/M00 U7 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 AD0 AD1 AD2 A[0..7] DKS D15 6 5 4 3 2 1 +5V R119 A14 AD[0..7] DKD SG DKD 2P +24V DKD SW DKD 1P FG A0 AD7 C104 P.G +24IN CN2 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 MCE MCE X2 1 4 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 R105 R103 4 SG NRESET DSR_RESET N25_RESET HOST_CTS RD SD SG PG +24V +24V PG DK_P DK_G DK_2 +5V SG CLKREQ CLKIN/DTR RTS DET CTS HOST_RTS PG +24V +24V PG PG DK_S DK_1 2 CN4 R115 29 28 27 17 ALE RD WR GND 24 4 I/F BOARD C105 33 60 61 A19/DSW8 A18/BTDET A17/DSW12 A16/DSW11 R111 R116 WR A17/DSW12 ALE RD WR TP4 U12 2 TP6 4 R110 X1 DM102 2 5 2 1 RD WR RESET 2 DSW1 3 DM120 1 3 10 21 3 4 A[8..19] #8 A19/DSW8 PF_C/DSW7 RES/DSW6 PF A/DSW5 CR D/DSW4 CR C/DSW3 CR B/DSW2 CR A/DSW1 U5 +5V #1 C26 TP62 CR D/DSW4 4 1 RES/DSW6 1 QM101 TP61 CR B/DSW2 3 2 DM103 1 TP48 1 TP126 10 CLKREQ PLED/DSW0 ELED/DSW9 DM104 TP125 2 1 TP44 C27 #7 #6 CR C/DSW3 TP60 5 4 TP46 DSW2 #25 RSTO DSR RSTO A17/DSW12 A16/DSW11 2 3 2 CR A/DSW1 10 R44 6 OUT 8 NC 3 NC 4 GND DM111 3 1 4 C28 IN NC NC C 1 TP45 DM105 TP59 3 4 TP8 3 4 DSR # 2#RST 5RST RST U9 7 1 2 5 C42 A19/DSW8 A18/BTDET A17/DSW12 A16/DSW11 4 3 2 1 Q32 1 2 Q31 D26 TP2 RM6 5 6 7 8 TP43 C101 4 R50 +5V R49 DSR OR #25 +5V +5V DM106 +5V 4 +5V #RST TP1 4 TP39 C5 Appendix A-16 Confidential TM-U200 Series (Type B) Service Manual For the main circuit board that the DSW2 is type CD +24B DSR RST #25 RST CLKREQ C105 A16/DSW11 A15 A14 A13 A12 A11 A10 A9 R21 R25 R24 C41 A19/DSW8 A18/BTDET A8 A7 A6 A5 A4 A3 A2 CLK_REQ CLK/DTR RTS DET CTS R104 R14 R1 R43 R52 DK2 A15 A14 A13 A12 A11 A10 A9 A8 NC NC WE RESET NC NC RY/BY A18/NC A17 A7 A6 A5 A4 A3 A2 A1 A16 BYTE VSS D15/A-1 D7 D14 D6 D13 D5 D12 D4 VCC D11 D3 D10 D2 D9 D1 D8 D0 OE VSS CE A0 C24 +5V C40 AD6 C25 AD5 AD4 28 27 26 25 24 23 22 21 20 19 18 17 16 15 A13 A8 A9 A11 RD A10 PCE1 AD7 AD6 AD5 AD4 AD3 AD3 AD2 AD1 AD0 RD PCE2 A1 VCC A14 A13 A8 A9 A11 OE A10 CE D7 D6 D5 D4 D3 TP7 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 DK1 #RST 1 Q114 3 R117 A7 A6 A5 A4 A3 A2 A1 A0 2 5 6 9 12 15 16 19 20 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 D0 D1 D2 D3 D4 D5 D6 D7 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 3 4 7 8 13 14 17 18 P.G 2 DK2 TP123 R118 1 TP27 3 Q115 1 DM133 6 2 5 3 4 TP124 2 3 1 5 +24IN 62 63 10 PFCOM CRCOM +24COM SW 76 74 73 PLED/DSW0 ELED/DSW9 PF SW 80 1 32 TP56 WDTOUT +5V R13 Q34 TP36 5 2 D47 C14 CR D/DSW4 CR C/DSW3 CR B/DSW2 CR A/DSW1 DK S SW A11 A10 A9 A8 P50 P47 P46 P45 P44 P43 P42 P41 P40 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 P60/AN0 P61/AN1 P62/AN2 P64/AN4 P65/AN5 72 71 70 69 68 67 66 65 64 7 8 9 11 12 HEAD9 HEAD1 HEAD2 HEAD3 HEAD4 HEAD5 HEAD6 HEAD7 HEAD8 1 2 3 4 1 TP35 SEN 4 30 2 22 26 2 5 TP37 4 DM128 1 3 2 C45 1 R7 14 P67/AN7 3 P100 4 P101 AVCC AVSS P32 P33 P63/AN3 R45 TP52 5 C31 AVCC HEAD1 DM122 4 2 3 C33 HEAD5 2 TP38 HEAD6 TP65 3 HEAD2 TP66 5 +5V SW VOUT SEN CR COM 4 GREEN (POWER) C7 TP54 D12 RED (PAPER) R15 SW2 U4 SEN F.G R114 2 1 10 5 2 3 PF PF PF PF PF A C COM B D D10 3 HEAD3 HEAD7 TP69 5 D11 RED (ERROR) DM134 4 2 3 TP153 RM101 DM131 1 5 2 4 3 5 6 7 8 8 9 6 7 4 5 2 3 2TP147 5 NE TP12 TP155 6 DM132 1 5 2 4 3 RM102 4 3 2 1 C17 Q13 QM2 5 6 7 8 TP151 8 9 6 7 4 5 2 3 TP152 R40 SENSOR +5R 1W R36 REC 1 2 3 4 R37 R38 HPC R53 QM108 3 2 TP15 3 5 1 TP16 2 5 1 R108 TP71 TP72 CN8 1 2 3 4 +5V H.P GND R.E R16 C44 C46 C23 TP13 FG #2 #4 #6 #8 COM(#4,6,8) #9 COM(#1,2,9) THEM1 THEM2 COM(#3,5,7) #5 #7 #1 #3 TP148 R107 AC2/DSEL CN7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 TP10 TP11 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 TP149 TP150 3 HP DET R101 TP154 TP146 1 TP9 6 TP145 2 HEAD QM1 4 3 2 1 TP144 Q101 QM106 TP70 1 1 DM129 4 2 3 C106 N.E SEN. +24A R106 C107 6 2 8 R109 4 TP78 R35 QM100 NEC 1 2 10 CN11 1 2 N.E GND 7 3 C20 9 5 1 AUTO CUTTER 1 2 3 4 CN9 1 2 3 4 AC M1 AC M2 GND AC RES +5V U1 10 IN G SW1 4 CN6 1 2 3 4 5 C9 POWER SW 1 7 PF COM 4 C8 +5I 6 C21 +24C 3 1 GND VOUT PF MOTOR 1 2 3 4 5 DM110 2 +5V (FEED) AC RST D5 SW 3 +5V R56 nPFCOM VIN 4 R34 R17 9 3 TP142 C22 QM113 2 2 R41 C10 5 5 TP141 TP140 1 AC1/DSEL C6 8 R39 TP40 QM109 D13 3 1 PF_D TP139 +5V TP68 3 1 +5V +5V R54 +24B 3 DM130 +5V PF SW TP53 R55 VIN 6 TP67 RE Operation Panel 1 3 DM109 2 2 nPFCOM +24A +24B +24C 2 1 PF_B TP143 QM105 HEAD4 5 DM108 1 TP75 QM104 PF SW U3 5 TP137 TP138 1 5 TP64 P80/WDTOUT NMI CLK EA 3 A C COM B D QM3 QM4 3 2 2 +5V 3 TP63 C4 C16 GND L1 1 +5V +5V R8 C30 C32 ELED/DSW9 CR CR CR CR CR +24C +5V PLED/DSW0 CN5 1 2 3 4 5 HD T R19 C19 75 VCC 34 VCC 15 VCC P56/INT3/TI2 P57/TO3 P82 5 +24C C29 AC RST AC1/DSEL AC2/DSEL 78 VSS 51 VSS 23 VSS 4 DM107 1 TP73 8 7 6 5 TP74 TP76 GND P53/INT1/TI4 P52/TO5 P51/TO4 7 TP50 V DTC HD TEMP NE RE HP DET 6 6 1 2 3 4 5 TP101 1/16W R18 nPFCOM +24A +24B +24C D3 1 C11 C12 1 OUT 6 LIN C1 5 C2 C3 Rev. B AVCC D50 TP51 P72/RXD1 P73/SCLK1 P74/TXD1 P81/INT0 P66/AN6 P54/INT2/TI5 P55/WAIT/TO1 P70 TP132 1 RM103 1 2 3 4 QM103 TP14 P.G 5 +5V R46 +5V +24DT 2 PF C/DSW7 QM107 HEAD COM A/C COM DKD COM 3 1 F1 1 +24DT 9 2 R102 TP131 2 HEAD[1..9] 4 3 D6 1 2 3 SH 5 HEAD9 +24A VOUT GND 4 TP34 2 CN1 AC1/DSEL 8 TP159 +5V 3 +24DT VIN R6 nPFCOM +30V GND N.C F.G PF A/DSW5 TP31 D4 U2 5 QM110 DC.CON. Q117 R5 TP55 PFCOM TP49 2 8 7 6 5 QM102 +5V HEAD8 GND 2 Q1 CRCOM 3 +5V TP32 +24DT +24COM SW TP20 TP21 TP22 TP23 DKD1 DKD2 DK S U2-U4 with heat sink 1 4 DET CLK_REQ CTS RTS 18 19 20 31 13 77 79 16 AC2/DSEL R29 2 3 2 QM112 DM121 TP158 1 3 TP57 1 +24A R59 QM115 TP17 TP18 TP19 DET 6 7 CLK_REQ RTS 5 CTS 8 WDTOUT 3 A15 A14 A13 A12 A19/DSW8 PF_C/DSW7 RES/DSW6 PF A/DSW5 DM101 #1 DKD2 TP30 D108 +5V P77 P76 P75 P71 X1 C39 TP79 P.G RM5 RES/DSW6 RD CLK/DTR SD DKD1 +5V DKS 46 45 44 43 38 37 36 35 +5V R28 F.G +5V 3 2 4 1 TP29 R113 A11 A10 A9 A8 AD3 AD2 AD1 AD0 1 OC 11 G TP28 QM111 50 49 48 47 42 41 40 39 10 4 RD 3 CLK/DTR 2 SD 1RES/DSW6 A15 A14 A13 A12 AD7 AD6 AD5 AD4 TP25 R112 P.G DK2 +24AD DKS DK1 RM105 5 6 7 8 +5V 4 DK1 29 28 27 17 25 59 P93/M13 58 P92/M12 57 P91/M11 56 P90/M10 55 P23/M03 54 P22/M02 53 P21/M01 52 P20/M00 U7 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 AD0 AD1 AD2 A[0..7] DKS D15 6 5 4 3 2 1 +5V R119 A14 A0 AD7 AD[0..7] DKD SG DKD 2P +24V DKD SW DKD 1P FG 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 MCE C104 P.G +24IN CN2 R105 R103 U101 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 WR +5V +5V R116 MCE X2 4 RM104 Q113 3 2 4 #RST DSR RST #25 RST RES/DSW6 RD SD R26 R115 X1 ALE RD WR 1 +5V 1 4 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 2 SG NRESET DSR_RESET N25_RESET HOST_CTS RD SD SG PG +24V +24V PG DK_P DK_G DK_2 +5V SG CLKREQ CLKIN/DTR RTS DET CTS HOST_RTS PG +24V +24V PG PG DK_S DK_1 R111 TP160 WR A19/DSW8 A18/BTDET A17/DSW12 A16/DSW11 RESET DM102 5 TP128 CR MOTOR 1 2 3 4 1 PCE1 C18 CN4 R110 TP161 33 60 61 3 2 DSW1 CR D/DSW4 TP127 2 D9 TP156 TP157 1 PCE2 ALE RD WR TP4 U12 2 TP6 4 GND 24 #8 1 3 TP62 2 10 RD WR I/F BOARD #1 CR B/DSW2 3 4 21 A17/DSW12 DM103 A19/DSW8 PF_C/DSW7 RES/DSW6 PF A/DSW5 CR D/DSW4 CR C/DSW3 CR B/DSW2 CR A/DSW1 1 2 C26 A[8..19] C15 DM104 QM101 TP61 DM120 1 3 10 RES/DSW6 U5 +5V #7 #6 CLKREQ A17/DSW12 A16/DSW11 #25 RSTO DSR RSTO PLED/DSW0 ELED/DSW9 TP48 4 TP46 TP44 C27 TP126 1 4 1 C28 R44 6 OUT 8 NC 3 NC 4 GND TP60 5 CR C/DSW3 3 2 DSW2 2 1 TP125 2 10 TP8 IN NC NC C 1 TP45 DM105 DM111 3 TP59 3 CR A/DSW1 4 Q32 3 2 4 DSR # 2#RST 5RST RST U9 7 1 2 5 C42 4 A19/DSW8 3 A18/BTDET 2 A17/DSW12 1 A16/DSW11 C101 Q31 D26 TP2 RM6 5 6 7 8 +5V TP43 4 R50 +5V R49 DSR OR #25 +5V 4 #RST TP1 +5V 1 4 +5V DM106 4 TP39 C5 Appendix A-17 Confidential TM-U200 Series (Type B) Service Manual RS-232 Serial Interface Board TO MAIN BOARD CN2 +5V C1 TP2 +12V U1 16 C2 4 5 RD DSR 13 8 SD DTR 14 7 TO HOST 15 FG SD/SD1 RD/SD2 RS/RD1 /RD2 DR/INIT1 SG /DR1 /DR2 /CS1 /CS2 ER INIT2 SHELL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 VCC C2+ V+ C1+ C2- C1- R1I R2I R1O R2O T1O T2O T1I T2I GND V- 2 RTS DSR DSR C3 R21 1 DTR DTR +5V +5V 3 12 9 RD DSR 11 10 SD DTR + 1 2 V 6 + 5 V + 5 V SD RD SD RD C7 #25_RESET DSR_RESET SG SG SG SG 1 2 3 4 5 6 7 8 9 SG 10 11 12 13 14 15 16 17 18 19 20 21 22 SG 23 24 25 26 27 28 29 30 SG DK 1 DK S PG PG +24V +24V PG HOST RTS CTS I/F DET RTS CLKOUT/DTR CLKREQ SG +5V DK 2 DK G DK P PG +24V +24V PG SG SD RD (RES) #25_RESET DSR_RESET #RESET SG R1 RTS RTS Q1 RTS 10K 10K R7 Q2 +12V D1 D S R | R E S E T R3 +12V R4 8 3 1 R2 0 C5 TP1 R16 DSR R T S # 2 5 | R E S E T 10K 10K RTS 2 C6 R17 U2A CN1 4 S G R20 + 5 V R18 -12V R5 D2 R8 -12V -12V D3 R13 +12V R9 C4 R14 R15 R6 5 #25INIT 7 6 R12 U2B R10 R11 -12V SG D4 Rev. B R19 Appendix A-18 Confidential TM-U200 Series (Type B) Service Manual IEEE 1284 Parallel Interface Board +5V DD5V D1 CEN7..0 U1 2 4 6 8 11 13 15 17 U11D 12 1 19 11 13 1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 RM12 18 16 14 12 9 7 5 3 1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4 8 7 6 5 5 6 7 8 RM11 1 2 3 4 4 3 2 1 1G 2G R2 RM2 U9 2 5 6 9 12 15 16 19 CEN0 CEN1 CEN2 CEN3 CEN4 CEN5 CEN6 CEN7 Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 3 4 7 8 13 14 17 18 D0 D1 D2 D3 D4 D5 D6 D7 +5V OC G 4 3 2 1 5 6 7 8 1 2 3 4 8 7 6 5 1 11 RM1 R48 C19 C15 C14 C26 C20 C23 C21 C24 C22 C25 CN1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 +5V +5V +5v R13 R14 R49 R15 Q5 +5V R45 R46 R39 R40 R42 DD5V R43 R11 4 5 6 CN2 DK 1 DK S PG PG +24V +24V PG HOST_RTS CTS DET RTS CLKIN/DTR CLKREQ SG +5V DK 2 DK G DK P PG +24V +24V PG SG SD RD (RES) #25_RESET DSR_RESET #RESET SG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 R16 U2 +5V R7 C10 CEN0 CEN1 CEN2 CEN3 CEN4 CEN5 CEN6 CEN7 C3 C11 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 C18 P31/RXD P32/SCLK P33/TXD P35/RD P36/WR P37/TO1/WAIT P80/INT0 P81/INT1/TI2 NMI EA CLK P00/D0 P01/D1 P02/D2 P03/D3 P04/D4 P05/D5 P06/D6 P07/D7 VSS VCC P27/A15 P26/A14 P25/A13 P24/A12 P23/A11 P22/A10 P21/ A9 P20/ A8 P17/ A7 P16/ A6 P15/ A5 P14/ A4 P13/ A3 P12/ A2 P11/ A1 P10/ A0 RESET X2 X1 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 3 2 1 R50 1284ACT CTS AFXT +5V R51 CEN_DIR BS_CLR LOGIC-H RTS DK_STAT ACK S_BUSY PE SLCT ERR Q4 R36 4 5 6 C17 3 2 1 R30 C90M00NB X1 0 -STB/HOSTCLK DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 DATA8 -ACK/PTRCLK BUSY/PTRBUSY/37 PE/ACKDATREQ/26 SLCT/XFLAG/15 -AFXT/HOSTBUSY NC GND FG LOGIC-H GND GND GND GND GND GND GND GND GND GND GND GND -INIT -ERR/-DTVAIL/04 GND DK STATUS +5V -SELIN/1284ACT SHELL U10 2 4 6 8 11 13 15 17 U5A 1 7 2 H_BUSY 1 19 1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 R27 R28 R29 R31 R32 18 16 14 12 9 7 5 3 1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4 1G 2G DD5V C27 +5V Q P R Q C L D CLK 3 C29 C30 C31 R54 U7 7 5 C28 R53 R52 2 1 +5V U11C 9 R23 8 6 10 R24 U5B R25 6 3 R10 5 R26 U11A U11B 1 4 C16 6 +5V 3 2 5 R12 C5 DD5V U1 CU1 Rev. B DD5V U9 DD5V U10 CU9 DD5V U11 CU10 +5V C32 C33 +5V U5 CU11 C4 U7 CU5 CU7 Appendix A-19 Confidential TM-U200 Series (Type B) Service Manual RS-485 Serial Interface Board TP2 R12 R9 R13 CS1 8 1 CS2 7 2 CTS DR2 6 3 DR DR1 5 4 CS1 R10 CS2 R8 +5V U2 + 5 V +5V CTS RD1 RD2 R1 CN2 SG R5 R2 TO MAIN BOARD R17 CTS SG U1 R6 8 1 7 2 SD2 6 3 SD1 5 4 DR R3 RD SD R16 DR SG SG R18 +5V +5V TO HOST SG FG SD/SD1 RD/SD2 RS/RD1 /RD2 DR/INIT1 SG /DR1 /DR2 /CS1 /CS2 ER INIT2 SHELL Rev. B C5 + 5 V CN1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 FG 0 FG R11 SD2 SD1 RD2 RD1 SG DR2 DR1 CS2 CS1 SG R4 TP1 SD RD SG SD RD SG SG SG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 DK 1 DK S PG PG +24V +24V PG HOST_RTS CTS DET RTS CLKIN/DTR CLKREQ SG +5V DK 2 DK G DK P PG +24V +24V PG SG SD RD (RES) #25_RESET DSR_RESET #RESET SG R19 R14 R15 R7 Appendix A-20 Confidential TM-U200 Series (Type B) Service Manual Printer Mechanism Unit Overall Exploded Diagram CPP-tite (M3 x 10) Print head FPC Print head unit CCS-tite (M3 x 6) Belt Left cover fixing plate J feed roller shaft holder (left) CBS-tite (M3 x 5) Right cover fixing plate Ribbon drive plate assembly Tension plate assembly Carriage sub assembly Manual cutter RE (2.3) Paper hold spring Carriage shaft RE (2.3) Belt tension spring Ribbon transmission gear Ribbon frame earth plate Carriage guide shaft Ribbon release lever CCS-tite (M3 x 6) CBT-B (M3 x 10) Adjustment roller shaft holder Paper feed motor Ribbon intermediate gear Ribbon release spring Ribbon switch lever CBT-B (M3 x 10) RE (3) Paper feed reduction gear Paper hold roller Paper hold roller shaft Adjustment roller shaft holder Paper hold plate spring Ribbon cassette Thumb-screw Paper feed frame assembly Paper hold spring Head cover CPS-tite (S-P4) (M3 x 8) RE (2.5) Ribbon take-up assembly Base frame assembly RE (2.3) Carriage motor assembly Ribbon frame spring Paper feed roller assembly Sensor assembly Ribbon frame assembly Ribbon frame fixing plate Rev. B Carriage motor heat sink plate Upper paper guide Appendix A-21 Confidential TM-U200 Series (Type B) Service Manual Case Unit Overall Exploded Diagram This is the diagram that the changes described in Addendum 1, 2, and 3 are not taken. CPS-tite (M3 x 6) CBS-tite (M3 x 5) Auto-cutter lock lever spring Lower cutter plate Hexagon lock screws (*) Auto-cutter assembly Main cover assembly Auto-cutter cover Upper plate RE (2.3) RE (2.3) Auto-cutter lock lever CP(0) (M3 x 6) CPT-B (M3 x12) RE (3) Auto-cutter plate assembly Hinge assembly CBS-tite (M3 x 4) Auto-cutter plate shaft Main circuit board assembly Connector plate CPS-tite (M3 x 6) I/F circuit board assembly Auto-cutter CPT-B (M3 x12) plate spring shaft CPT-B (M3 x12) Auto-cutter fixing plate CBS-tite (M3 x 5) CPT-B (M3 x12) Guide roller Auto-cutter plate spring Upper case Paper roll receive rollers CBB-tite (M2 x 8) PROM Near-end detector Switch panel Lower case Spacer Lead wire assembly CPT-B (M3 x12) Near-end detector frame CBS-tite (M3 x 5) CP(O) (M3 x 6) CPT-B (M3 x12) CP (O) (M3 x 6) Rubber foot Printer mechanism assembly Lower plate CPT-B (M3 x12) Rubber foot CPS-tite (M3 x 6) ROM spacer CPS-tite (M3 x 6) Rev. B ROM cover Near-end detector lever (*) For the parallel interface, the CPS-tite ( M3 x 6 ) are used. Appendix A-22 Confidential TM-U200 Series (Type B) Service Manual Case Unit Overall Exploded Diagram This is the diagram that the changes described in Addendum 1, 2, and 3 are taken. Auto-cutter lock lever Lower cutter plate spring Hexagon lock screws (*) CPS-tite (M3 x 6) CPS-tite (M3 x 6) CBS-tite (M3 x 5) Release lever Auto-cutter assembly Main cover assembly Auto-cutter cover Upper plate RE (2.3) Auto-cutter lock lever CP(0) (M3 x 6) CPT-B (M3 x12) Auto-cutter plate assembly RE (3) Hinge assembly CBS-tite (M3 x 4) Auto-cutter plate shaft Main circuit board assembly Auto-cutter CPT-B (M3 x12) plate spring shaft CPT-B (M3 x12) Connector plate CPS-tite (M3 x 6) I/F circuit board assembly Auto-cutter fixing plate CBS-tite (M3 x 5) CPT-B (M3 x12) Guide roller Paper roll receive rollers Auto-cutter plate spring Upper case Lower case CBB-tite (M2 x 8) Near-end detector Switch panel Spacer Lead wire assembly CP(O) (M3 x 6) Near-end detector frame CPT-B (M3 x12) CBS-tite (M3 x 5) CPT-B (M3 x12) CP (O) (M3 x 6) Rubber foot Lower plate Printer mechanism assembly CPT-B (M3 x12) Rubber foot CPS-tite (M3 x 6) CPS-tite (M3 x 6) Rev. B Near-end detector lever ROM cover (*) For the parallel interface, the CPS-tite ( M3 x 6 ) are used. Appendix A-23 Confidential TM-U200 Series (Type B) Service Manual Printer Mechanism Unit Lubrication Points Diagram (1) O-10 (5) G-31 (6) G-31 (7) G-31 (2) G-31 (8) G-31 (7) G-31 Rev. B Appendix A-24 Confidential TM-U200 Series (Type B) Service Manual Case Unit Lubrication Points Diagram (3) G-31 (3) G-31 (4) G-31 (4) G-31 Rev. B Appendix A-25 Confidential TM-U200 Series (Type B) Service Manual Addendum 1 Main Circuit Board Types and Maintenance Changes In ANK font model, the following three changes were made with regard to the main circuit board. ❏ EP-ROM equipped main circuit board no longer used ❏ Number of switches in DIP switch set DSW2*1 changed from 4 to 8 ❏ Function assignment of 8-switch DIP switch set DSW2*1 changed*2 *1 DIP switch set DSW1 is unchanged. *2 Some products are not applicable with this modification depends on destination of shipment. EP-ROM equipped main circuit board no longer used in ANK font model The control program for the printer can be contained in two types of memory: EP-ROM or flash memory. When EP-ROM is used, the EP-ROM chip is installed in a socket on the main circuit board. When flash memory is used, the flash memory chip is soldered to the main circuit board. Previously, the ANK font model used an EP-ROM on the main circuit board, whereas the multilingual font model used flash memory on the main circuit board. For printers in current production, the ANK font model also has been changed to flash memory. However, spare parts for the ANK font model still are supplied with the EP-ROM type main circuit board. Number of switches in DIP switch set DSW2 changed in ANK font model The printer has two sets of DIP switches: DSW1 and DSW2. The number of switches contained in DSW2 has been changed from 4 to 8. (The multilingual font model has been using 8-switch DIP switch for the DIP switch set DSW2 from start of mass production.) The added switches control internal functions of the printer and are not available for user setting purpose. Rev. B Main Circuit Board Types and Maintenance Addendum 1-1 Confidential Function assignment of 8-switch DIP switch set DSW2 changed in ANK font model The following changes were made in ANK font model*3. (There has been no change for multilingual font model.) *3 Some products are not applicable with this modification depends on destination of shipment even if it is ANK font model. Serial interface model The "printer reset signal enabled/disabled" function was changed from DSW2-7 and DSW2-8 to DSW2-3 and DSW2-4. Parallel interface model The "printer reset signal enabled/disabled" function was changed from DSW2-8 to DSW2-4. Addendum 1-2 Main Circuit Board Types and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual Servicing Precautions During servicing and repair of the printer, observe the following points. ❏ Use the correct main circuit board ❏ Use the correct DIP switch setting table ❏ Use the correct circuit diagram For details, please see the following sections. Using the correct main circuit board When replacing the main circuit board, select the correct board for the printer. Determine the board according to the following sequence. 1. Check whether the printer is an ANK font model/Japanese font model/Chinese font model/Taiwanese font model. If it is an ANK font model, proceed to next step. For the other models, go to step 3. 2. Check the setting of DIP switch set DSW2 according to the information given in the section "Using the correct DIP switch setting table" on the next page. 3. Select the correct main circuit board according to the following table. Main circuit board types Model Main circuit board types DIP switch set DSW2 type ANK font model Main circuit board set, B (equipped with EP-ROM) Type D Main circuit board set, D (equipped with EP-ROM) Main circuit board unit, AW (equipped with flash memory) Type AD Main circuit board unit BA (equipped with flash memory) Type CD Chinese font model (Simplified Chinese) Main circuit board unit AR (equipped with flash memory) Japanese font model Main circuit board unit BE (equipped with flash memory) Taiwanese font model (Traditional Chinese) Main circuit board unit AQ (equipped with flash memory) Type AD In future, main circuit boards other than those listed above may also become available. Check for the latest information as follows. 1. Check the model code (noted on manufacturing name plate). 2. Obtain the parts price list matching the model code. Note: There are two different parts price lists, one for the EP- ROM equipped model, and one for the flash memory model. Choose the parts price list for the flash memory model. Rev. B Main Circuit Board Types and Maintenance Addendum 1-3 Confidential 3. Check the latest main circuit board type and the part code. Using the correct DIP switch setting table The DIP switch set DSW2 can have either 4 or 8 switches. For the 8-switch DSW2, there are two types with different function assignments. Before setting the DIP switch set DSW2, check which type is installed in the printer. Identifying the DIP switch set DSW2 type The following three types exist for the DIP switch set DSW2. DIP switch set DSW2 type Type D Type AD Type CD Identify the type as follows. 1. Remove the lower plate. 2. Check the area shown below to see if there is a printing that begins with “SET.” 3. If there is no such printing, the DSW2 is type D. 4. If there is a printing that begins with “SET,” use the following table to identify the type. Printing DIP switch set DSW2 type SET, AD Type AD SET, CD Type CD Addendum 1-4 Main Circuit Board Types and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual DIP switch setting tables This section contains setting tables for the various DIP switch types. Settings for DIP switch set DSW1 are also shown, but there have been no changes for this DIP switch set. DIP switch setting tables (type D) Serial interface model DSW1 DIP switch Function ON OFF 1 Data receive error Ignored Prints "?" 2 Receive buffer capacity 40 bytes ANK model: 1000 bytes Multilingual model: 512 bytes 3 Handshaking XON/XOFF DTR/DSR 4 Data word length 7 bits 8 bits 5 Parity check Yes No 6 Parity selection Even Odd 7 Baud rate selection 4800 bps 9600 bps 8 Busy condition Receive buffer full ・Off-line ・Receive buffer full bps: bits per second DSW2 Rev. B DIP switch Function ON OFF 1 Print column selection 42 CPL/35 CPL 40 CPL/33 CPL 2 Internal use (no change allowed) Fixed to ON --- 3 I/F pin 6 reset signal Enabled Disabled 4 I/F pin 25 reset signal Enabled Disabled Main Circuit Board Types and Maintenance Addendum 1-5 Confidential Parallel interface model DSW1 DIP switch Function ON OFF 1 Auto line feed Enabled Disabled 2 Receive buffer capacity 40 bytes ANK model: 1000 bytes Multilingual model: 512 bytes 3 Undefined --- --- 4 Undefined --- --- 5 Undefined --- --- 6 Undefined --- --- 7 Undefined --- --- 8 Busy condition ・Receive buffer full ・Off-line ・Receive buffer full DIP switch Function ON OFF 1 Print column selection 42 CPL/35 CPL 40 CPL/33 CPL 2 Internal use (no change allowed) Fixed to ON --- 3 Undefined --- --- 4 I/F pin 31 reset signal Enabled Disabled DSW2 Addendum 1-6 Main Circuit Board Types and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual DIP switch setting tables (type AD) Serial interface model DSW1 DIP switch Function ON OFF 1 Data receive error Ignored Prints "?" 2 Receive buffer capacity 40 bytes ANK model: 1000 bytes Multilingual model: 512 bytes 3 Handshaking XON/XOFF DTR/DSR 4 Data word length 7 bits 8 bits 5 Parity check Yes No 6 Parity selection Even Odd 7 Baud rate selection 4800 bps 9600 bps 8 Busy condition Receive buffer full ・Off-line ・Receive buffer full bps: bits per second DSW2 Rev. B DIP switch Function ON OFF 1 Print column selection 42 CPL/35 CPL 40 CPL/33 CPL 2 Internal use (no change allowed) Fixed to ON --- 3 Internal use (no change allowed) --- Fixed to OFF 4 Undefined --- --- 5 Internal use (no change allowed) --- Fixed to OFF 6 Internal use (no change allowed) --- Fixed to OFF 7 I/F pin 6 reset signal Enabled Disabled 8 I/F pin 25 reset signal Enabled Disabled Main Circuit Board Types and Maintenance Addendum 1-7 Confidential Parallel interface model DSW1 DIP switch Function ON OFF 1 Auto line feed Enabled Disabled 2 Receive buffer capacity 40 bytes ANK model: 1000 bytes Multilingual model: 512 bytes 3 Undefined --- --- 4 Undefined --- --- 5 Undefined --- --- 6 Undefined --- --- 7 Undefined --- --- 8 Busy condition ・Receive buffer full ・Off-line ・Receive buffer full DIP switch Function ON OFF 1 Print column selection 42 CPL/35 CPL 40 CPL/33 CPL 2 Internal use (no change allowed) Fixed to ON --- 3 Internal use (no change allowed) --- Fixed to OFF 4 Undefined --- --- 5 Internal use (no change allowed) --- Fixed to OFF 6 Internal use (no change allowed) --- Fixed to OFF 7 Undefined --- --- 8 I/F pin 31 reset signal Enabled Disabled DSW2 Addendum 1-8 Main Circuit Board Types and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual DIP switch setting tables (type CD) Serial interface model DSW1 DIP switch Function ON OFF 1 Data receive error Ignored Prints "?" 2 Receive buffer capacity 40 bytes ANK model: 1000 bytes Multilingual model: 512 bytes 3 Handshaking XON/XOFF DTR/DSR 4 Data word length 7 bits 8 bits 5 Parity check Yes No 6 Parity selection Even Odd 7 Baud rate selection 4800 bps 9600 bps 8 Busy condition Receive buffer full ・Off-line ・Receive buffer full bps: bits per second DSW2 Rev. B DIP switch Function ON OFF 1 Print column selection 42 CPL/35 CPL 40 CPL/33 CPL 2 Internal use (no change allowed) Fixed to ON --- 3 I/F pin 6 reset signal Enabled Disabled 4 I/F pin 25 reset signal Enabled Disabled 5 Internal use (no change allowed) --- Fixed to OFF 6 Internal use (no change allowed) --- Fixed to OFF 7 Internal use (no change allowed) --- Fixed to OFF 8 Undefined --- --- Main Circuit Board Types and Maintenance Addendum 1-9 Confidential Parallel interface model DSW1 DIP switch Function ON OFF 1 Auto line feed Enabled Disabled 2 Receive buffer capacity 40 bytes ANK model: 1000 bytes Multilingual model: 512 bytes 3 Undefined --- --- 4 Undefined --- --- 5 Undefined --- --- 6 Undefined --- --- 7 Undefined --- --- 8 Busy condition ・Receive buffer full ・Off-line ・Receive buffer full DIP switch Function ON OFF 1 Print column selection 42 CPL/35 CPL 40 CPL/33 CPL 2 Internal use (no change allowed) Fixed to ON --- 3 Undefined --- --- 4 I/F pin 31 reset signal Enabled Disabled 5 Internal use (no change allowed) --- Fixed to OFF 6 Internal use (no change allowed) --- Fixed to OFF 7 Internal use (no change allowed) --- Fixed to OFF 8 Undefined --- --- DSW2 Addendum 1-10 Main Circuit Board Types and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual Using the correct circuit diagram Depending on the type of DIP switch set DSW2, there are the following three types of circuit diagrams. Circuit diagram type (DIP switch set DSW2 type) Type D Type AD Type CD Determine the correct circuit diagram according to the same procedure as described in the section "Using the correct DIP switch setting table". The circuit diagrams are given on pages A-13, A-14, and A- 15. Rev. B Main Circuit Board Types and Maintenance Addendum 1-11 Confidential Addendum 1-12 Main Circuit Board Types and Maintenance Rev. B Confidential TM-U200 Series (Type B) Service Manual Addendum 2 Lower Plate Change and ROM Spacer Abolition Because the storage device for the printer control program was changed from EP-ROM to flash memory, the ROM spacer is no longer required and was abolished. Due to this change, the shape of the lower plate also has changed. Note: For details on the main circuit board change, please refer to Addendum 1 of this manual. Description of Change The following change was made. Main circuit board Shape EP-ROM type Lower plate ROM spacer ROM cover Flash memory type Lower plate ROM cover Rev. B Lower Plate Change and ROM Spacer Abolition Addendum 2-1 Confidential Servicing Precautions The ROM spacer serves fasten the EP-ROM to the socket. When servicing an EP-ROM equipped main circuit board, be sure to observe the following points. ❏ Use a lower plate with the old shape. ❏ Attach the ROM spacer to the ROM cover. Addendum 2-2 Lower Plate Change and ROM Spacer Abolition Rev. B Confidential TM-U200 Series (Type B) Service Manual Addendum 3 Auto-Cutter Release Tab Change To improve the open/close action of the auto-cutter, the auto-cutter release tab was changed. Consequently, the assembly procedure is now different, and there has been a change in the spare parts supply unit. Description of Change The following change was made. Description Before change R.E (2.3) Auto-cutter lock lever spring R.E (2.3) Auto-cutter lock lever After change R.E (2.3) Auto-cutter lock lever spring Release lever (added) R.E (2.3) (abolished) Auto-cutter lock lever Rev. B Auto-Cutter Release Tab Change Addendum 3-1 Confidential Assembly Procedure Change Please refer to pages 5-37 and 5-38 of this manual. Spare Parts Supply Unit Change The following change was made to the spare parts supply unit. Description Before change Auto-cutter lock lever After change Auto-cutter lock lever assembly Release lever (added) Auto-cutter lock lever Addendum 3-2 Auto-Cutter Release Tab Change Rev. B