Service Guide

Confidential
64xPS/ID
Service Guide
Version: 1.1
The Service Guide was written mainly for engineers.
Please Do Not rep roduce and dup licate.
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Chapter 1: Overview
Chapter 2: Theory of Operation, Mechanism, Firmware
Chapter 3: Disassembly, Index of Parts, Tools required
Chapter 4: Adjustments
Chapter 5: Contact Information
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Chapter 1: Overview
Overvie w
640PS
641PS
HiTi Photo Printer 640PS and 641PS are p opular p rinters able to p rint in high-sp eed &
high-quality . HiTi p hoto p rinters are sty lish and compact. HiTi p rinters can p rint 6x4”
(10x15cm) p hotos, ID photos (various sizes), name cards, p ost cards, greeting cards,
season cards, calendars, and stickers.
There are 2 different way s to op erate the HiTi Photo Printer 640PS and 641PS:
1. The printer can be connected to a personal comp uter via a USB cable. HiTi p hoto
printers meet the USB 1.1 standard and are fully comp atible with any USB device (USB
1.0 to 2.0).
2. The HiTi Photo Printer 640PS and 641PS can also be op erated without a direct or
indirect connection to a p ersonal computer. This p rinting style is called standalone
printing. In this mode, images are being selected with the handheld TFT monitor. The
640PS and the 641PS both feature ‘onboard’ multi-card readers. A memory card can b e
inserted into the card slot. Image can be selected on the handheld TFT monitor.
In addition to a multi card memory card slot, the 641PS also features a LinkPrint
connector. LinkPrint is an advan cement of the Picture Bridge standard, which allows
comp liant cameras to be directly connected to the 641PS p rinter. LinkPrint also allows
external hard driv es or storage driv es, such as USB memory sticks, to be directly
connected to the p rinter.
The 640PS and 641PS include one of the followin g functions:
Printing Process
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YM CO 4 p asses (Yellow, Magenta, Cy an, and Over-coating)
Over coating ensures that HiTi’s p rintouts can be kep t a longer time than inkjet
p rinter’s p rintouts.
High Quality Resolution
640PS and 641PS: 403 x403 dp i
Convenience
All HiTi Photo Printer ship with “Photo Desiree”, a p hoto editing p rogram
designed for p rinting 4”x6” p hotos, id p hotos, calendars, photo name cards, and
p hoto greeting cards.
HiTi “Photo Desiree” enhances and en ables very easy usage for your p hoto
p rinter. It allows y ou to turn y our 640PS or 641PS into a digital mini lab y ou
can operate from home.
You can download the latest firmware and other software from the HiTi website
to y our computer. Firmware is being up dated p er USB cable.
M ulti-memory card supp ort. HiTi Photo Printer 640PS and 641PS p rovide two
typ es of memory card slots.
Stand-alone op eration & PC link: You can instantly p review what y ou want to
p rint.
640PS and 641PS can be used to read y our images from a memory card (it has
the functions of a card reader).
(641PS only:)
641PS can accep t any USB device (Camera, USB memory stick, USB memory
card adap tors, External HDD). This technology is known as LinkPrint.
Specifications
Model Name
Printing Method
Gradations
Resolution
Paper Size
Printing Size
Paper Feed
Printing S peed
Operating Temperature
Operating Humidity
Computer Interface
Card S ocket
File Format Support
Power Supply
HiTi Photo Printer 640PS & 641PS
Dy e Diffusion Thermal Transfer continuous tone
p rinting
256 levels per Yellow, M agenta, Cy an color (8 bits),
total 16.77 million true colors
403×403 dpi
4 in.×7 in. with detachable boundary
4 in.×6 in., (100mm×152mm)
Cassette type automatic feeder, 25 sheet cap acity
Approx. 60 sec. p er sheet (excludin g d ata transmission
time)
59˚ ~90˚F (15˚ ~32˚C)
20 ~75% RH
USB Ver. 1.1
Twin slot supp ort CF, SM , SD, MM C, MS and Micro
Drive
EXIF, JPEG, DPOF
100~240 V, 50/ 60 Hz
Operating System
Minimum S ystem
Requirement
Certification
Accessories Included
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Windows 98/ M E/ 2000/ XP
Linux & Mac OS 10.2 and abov e
Win 98/M E: 64M B RAM , Pentium PC
Win 2000/ XP: 128M B RAM, Pentium PC
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UL, TUV-GS, FCC, CE, BSM I, CCC, C-Tick, VCCI
Pap er Cassette, USB cable, CD-ROM (with p rinter
drivers, bundle software and electronic manual), AC
p ower cord, Samp le p rint kit (8 sheets of p hoto pap er,
1 sheet of 4×4 sticker, 1 sheet of 4/2/4 sticker p lus 1
YMCO ribbon cartridge for 10 p rints
Chapter 2: Theory of Operation
Dye Diffusion Thermal Transfer (D2T2)
Dye Diffusion Thermal Transfer (D2T2), the world’s leading techno lo gy in p hoto
printing p rocesses, uses a thermal p rinting head (TPH) to sequentially heat three ribbon
panels that are coated with y ellow, magenta and cy an dy e. The heat p rocess turns the dy e
into gas that diffuses into a thin receivin g lay er on top of the p ap er. An overcoat is then
lay ered down on top of the p aper to p rotect the color against water and ultraviolet ray s
and to prevent it from fading.
Comp ared with some other p hoto-capable p rinting technolo gies, such as Thermal
Autochrome (Fujifilm), Variable Dot (Fujicopian) and Inkjet (Canon, Ep son and HP),
Dye Diffusion Thermal Transfer creates the most realistic photo quality. To the naked
ey e it is indistinguishable fro m p hotograp hic p rints. Its continuous-tone p rinting p roduces
256 color gradation levels in each p ixel independently while other technologies, like
Variab le Dot and Inkjet, have to make d ifferent dot sizes to increase the resolution in
half-tone to achieve similar effects.
The Thermal Print Head (TPH)
sequentially heats three ribbon p anels
that are coated with dye in y ellow,
magenta and cyan. The heat p rocess
turns the dy e into gas that diffuses into
a thin receiv in g lay er on top of the
pap er. An overcoat is then lay ered
down on top of the p aper to p rotect the
color against water and ultraviolet and
to p revent it from fading.
TPH
Ribbon
He at
Dye
Paper
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Hardware
Thermal Print Head (TPH)
Thermal Print Head (TPH) is the key comp onent for D2T2 printer, like the inkjet printing
head for inkjet printer.
PCB
Driver IC
He ating Ele ment
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Main Board & ASIC
Note: Main Board = Mother board; ASIC = HiT i CPU
The ASIC is an IC (Integrated Chip ) located on the Main Board. The ASIC was designed
by the HiTi R&D dep artment and features an 8032 MCU. The ASIC drives the USB
controller, controls the embedded SDRAM , MCU I/F, USB I/F, memory I/F, and GIO
interface.
The Firmware (located on IC-A and IC-B) controls the actions of the p rinter by reading
and writing the registers. Please note IC-B is a back up to IC-A.
The VR (Variable Resistance) on the main board is used to adjust the voltage of the
ribbon sensor. (M ore details located in the VR adjustment section).
The 640PS and 641PS have 2 ICs located on the mainboard. The FW (firmware) is
stored in IC-A and IC-B.
The picture below illustrates the mainboard of the 640PS.
On the 641PS main board IC-B is soldered onto the main board.
IC - A
IC - B
ASIC
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Power Board
It contains a universal AC inp ut, DC +18V/7V outp ut and a USB interface.
The VR (variable resistance) on the p ower board is used to adjust the voltage of the THP.
This controls the color density of the printout.
The illustration below shows the image of a 640PS power board.
VR
Note: If the color density is too light, a voltage adjustment (VR on the power board) can adjust the
lightness. More explanation will be given later.
TPH Board
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The TPH Board connects the cables (Ribbon LED cable, TPH Cable, Cassette Sensor
Cable, Fan Cable). The TPH board connects then to the motherboard.
TPH Board
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Card Board (640PS and 641PS)
640PS : There are 2 memory card sockets on the card board. One is for Comp act Flash
and the other is for Smart M edia/ M ulti-M edia-Card/ Secure Digital C ard/Memory Stick.
641PS : The 641 PS card board features an enh anced U SB Connector. This USB
Connector connects Picture Bridge comp atible cameras, external hard-drives and storage
cards such as USB memory sticks to the p rinter. As it is more advanced then Picture
Bridge it is called Link Print.
The illustration below shows the 640PS card boa rd
4 in 1 memory card
socket
Compact Flash
socket
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The illustration below shows the 641 PS card boa rd
4 in 1 memory card
socket
CompactFlash
socket
USB DataLink
Socket
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Controller Board (640PS and 641PS)
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This controller board uses an 80-series CPU with 4KB on-chip FLASH EPROM for the
central control – this would include an initial setting of the LCD driver IC, the LED
backlight control, the button-pushed sensing and commun ication with the main board.
The serial EPROM stores the setting data of the LCD that was received at the calibration
process. The CPU will read the serial EPROM and comp lete the initial setting for LCD
after it has been p owered on.
EPROM
Motor
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Cam motor
The Cam motor is a bipolar motor which drives the CAM to control the Platen roller’s &
Pinch roller’s position.
Capstan motor
The Capstan motor is a bip olar motor which drives the Capstan roller to control the
movement of the p ap er.
Ribbon/ ADF motor
The Ribbon/ ADF motor is a bip olar motor which feeds p ap er into the p rinting p ath and
then rolls the ribbon to the right starting p osition.
Ribbon/ ADF
motor
Capstan
motor
Cam
motor
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LED & Sensor Status/ Error LED
The Status/Error LED indicates the status of the p rinter. It also communicates any error
messages.
For examp le: The steadily shining Green LED indicates the ready stage of the p rinter.
The blinkin g Green LED indicates that the p rinter is busy. The blinking Oran ge LED
indicates that an error has hap pened.
(More info about Error messages later in this document)
Status/ Error
LED
Cam Sensor
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Dep ending on the p rinter’s status, the p ositions of the p laten roller and the pinch roller
stay different. The Cam controls the movement of the p laten roller between these
positions, and the Cam sensor detects & feeds the p osition’s information back to the
firmware. There are three d ifferent p laten roller p ositions:
Cam
sensor
P1 = Initial Position
The gap between the p laten roller & TPH is at
its largest, and the p inch roller is relaxed. The
p rinter is at this p osit ion when the printer
p owers on or resets.
P2 = Loa d Position
The gap between p laten roller & TPH is not as
large as at P1. The gap enables the ribbon to
wind. The p inch roller touches the cap stan
roller and enables the loading of the p ap er.
P3 = Print Position
The platen roller is close to the TPH,
and the p inch roller touches the capstan
roller which enables p ap er to move
forward and backward.
L OAD
P RI NT
I NI T IA L
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Leading Edge (LE) Sensor and Jam Sensor
The p urp ose of both sensors is to detect the status of pap er. The sensor will be on when it
detects the loading of pap er. The LE Sensor will b e off if it does not detect pap er loading.
Le ading Edge
sensor
Jam se nsor
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Ribbon Cassette (Door) Sensor
It is used to detect the status of the ribbon cassette and the ribbon door. The ribbon
cassette sensor will be on if the ribbon cassette typ e is correct; the Ribbon Cassette
Sensor will b e off if the ribbon cassette typ e is wrong.
Ribbon Cassette sensor
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Ribbon LED/ Ribbon Sensor
The Ribbon LED and Ribbon Sensor is used to detect the ribbon status, it enables the
printer to detect the correct ribbon color. At the y ellow or overcoat lay er, the ribbon sensor
detects a HIGH value. In the magenta and cy an lay er, the ribbon sensor detects a LOW
value.
Ribbon LED
Ribbon sensor
Fan
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The Fan reduces the temp erature of the TPH (Thermal Print Head). The fan only starts to
op erate as soon as the temp erature reaches a certain degree.
Fan
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Mechanism
Basic Anatomy
A: Eject button
B: Case back
C: Main board
D: Bracket and p ower-board E: TPH board F: Chassis
G: Case front H: Ribbon door I: Paper door J: Paper cassette
K: Card board
L: Controller
M: Controller hold er
Transmission
The Auto Document Feed (ADF)/ Ribbon search device
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1. When the ADF M otor rotates the pap er lifter gearin g chain, the Pap er Lifter device
starts lifting the elev ator p late in the p ap er cassette up . The p ap er which lies at the top
p osit ion will then be in contact with the pap er take up roller.
2. Now the photo p ap er is
in contact with the
p ap er take up roller.
The p ap er take-up roller
will grab the top pap er
and lead the p ap er into
the p re-set p ap er p ath.
3. The p ap er now p asses
the leading ed ge (LE)
sensor. The p ap er will
then be grabb ed by the capstan and p inch rollers. From this p oint onwards, the
p ap er’s movement is controlled by the capstan and p inch rollers.
4. While the cap stan roller
controls the p ap er, the ADF
releases the p ap er lift device,
switches to op erate the ribbon
gear chain and winds the
ribbon to the p rop er frame.
Cam position:
i.
ii.
iii.
iv.
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When the Cam M otor rotates, it will continue to operate Gear 1, Gear 2, Gear 3,
Gear 4, and Gear 5 in sequ ence.
It will transfer p ower to another side of the Peel Bar after it receives p ower by
Gear 5. Both gear sides will then rotate sy nchronously .
The process of the power transmission will go to Gear 5, Gear 7 Cam 1, Cam 3
Gear 6, Gear 8 Cam 2 and Cam 4.
The internal cam d esign of Cam 2 and Cam 4, Link 1 and Link 2 can move in
and move out to op erate the rotation of the Bushing-Pinch, and then sep arate
the Pinch Roller and the Capstan Roller.
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Firmware
Firmware update:
As the firmware is stored in the IC of the main board, y ou need to use the easy to use
BurnFW.exe app lication in order to update the p rinter’s firmware. Firmware up dates can
easily be downloaded from the HiTi supp ort website:
Go to www.hi-ti.com, then find the ‘Support’ section.
Firmware up dates are alway s recommended and help to increase the p rinter’s lifetime and
efficien cy.
Initialization:
When the p rinter p owers on, the initialization p rocess will go through v arious stages.
(See b elow illustration). The status LED will keep blinkin g until the initialization process
has concluded.
Host job flow:
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After the p rinter is p owered on, the firmware will control the p rinter’s op eration.
Printing Step
Related Motor
Related Sensor
1 Check Ribbon Cassette type
Ribbon Cassette
2 Cam load to print position
Cam
Cam
3 Loa d pa per
Cap stan
Jam
4 Ribbon registration (Y)
ADF
Ribbon
5 Print Yellow
Cap stan
LE, Jam
6 Cam print to load position
Cam
Cam
7 Ribbon registration (M)
ADF
Ribbon
8 Back paper
Cap stan
LE, Jam
9 Cam load to print position
Cam
Cam
10 Print Magenta
Cap stan
LE, Jam
11 Cam print to load position
Cam
Cam
12 Ribbon registration (C)
ADF
Ribbon
13 Back paper
Cap stan
LE, Jam
14 Cam load to print position
Cam
Cam
15 Print Cyan
Cap stan
LE, Jam
16 Cam print to load position
Cam
Cam
17 Ribbon registration (O)
ADF
Ribbon
18 Back paper
Cap stan
LE, Jam
19 Cam load to print position
Cam
Cam
20 Print Overcoat
Cap stan
LE, Jam
21 Eject pa per
Cap stan
22 Cam print to init position
Cam
Cam
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Error messages:
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The firmware controlled Status LED shows the error status:
Green Signal Light:
Stable: Printer is ready for p rocessing job
Blinking slowly: Printer is p rocessing job or initializin g after p ower on
Blinking fast: Printer is writing firmware
IMPORTANT: NEVER TURN THE PRINTER OFF WHILE ANY LIGHT IS
BLINKING OR WHILE YOU CAN STILL HEAR OPERATIONAL SOUNDS FROM
THE PRINTER
Orange Signal Light:
LED blinking
Error description
times
1
Cover open
3
Ribbon out
4
Paper out
5
Paper jam
6
Paper mismatch
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Cam error
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Nvram error
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Asic error
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Adc error
13
Fw checksum error
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Write flash error
640PS
Model
641PS
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Chapter 3: Disassembly
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Safety Instructions for all HiTi products: Printers
•
•
•
•
•
•
•
•
Read these instructions carefully. Save these instructions for future reference.
Follow all warnin gs and instructions marked on the printer.
Unp lug the p rinter from the wall outlet before disassembly.
Do not place the p rinter on an unstable cart, stand, or table. The p rinter may get
damaged by a fall.
Op enings in the chassis and the bottom are p rovided for ventilation p urp oses and
to ensure reliable op eration of the p rinter by protecting it form overheatin g: these
op enings must not be blocked or covered.
Placin g the p rinter on a bed, sofa, rug, or other similar, not firm surfaces may
block the op enings. The p rinter should never be p laced near or over a radiator or
heat register, p rop er ventilation and coolin g must be provided at all times.
The p rinter should only be op erated with the typ e of p ower indicated on the
markin g label. If y ou are not sure of the typ e of p ower availab le in your area,
consult y our dealer or local p ower comp any.
If an extension cord is used with this product, make sure that the total amp ere
rating of the equip ment p lugged into the extension cord does not exceed the
extension cord amp ere ratin g. Also, mak e sure that the total rating of all p roducts
plugged into the wall outlet does not exceed the fuse rating.
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Tools
Tweezers
Screwdriver – minus
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Screwdriver – plus
IC Clamp
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Wire Cutter
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Do not disassemble these Parts:
HiTi strictly prohibits anyone to disassemble the TPH (Thermal Print Head) and
the Bracket-idle. Both parts need to be calibrated by a specific calibration device
and cannot be repaired on site:
Bracket-idle:
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Disassembly
Click to go to the Visual Disassembly
Controller
Controller cable
Controller board
Case
Ribbon door
Case front
Bracket
Eject button
Case back
PCB
Main board 640PS
Main board 641PS
Power board
THP board
Card board 640PS
Card board 641PS
Motor
ADF motor
Cam motor
Cap stan motor
Wire & cable
Jam sensor
LE (leadin g ed ge) sensor
Cam sensor
Ribbon cassette (door) sensor
Ribbon sensor
Ribbon LED
Status LED
Card board cab le
Others
IC flash
THP linkage
Fan
TQL
Tray front
Pinch roller
Cap stan roller
Visual Disassembly
Cam Position
Motor Location
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Vis ual Disassembly:
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ADF MOTOR
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack with chassis
Unscrew 3 screws from chassis
Unscrew 2 screws from ADF motor frame
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Unp lug connector from main board
Take ADF motor out
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BRACKET
Unscrew 4 screws from bracket
Unp lug 5 connectors from p ower board
Unscrew screw from bracket
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Sep arate case back and bracket with power board
Unscrew 5 screws from p ower board
Sep arate p ower board and bracket
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CAM MOTOR
Unscrew 2 screws from case back
Sep arate case front and case b ack with chassis. Unscrew 3 screws from chassis
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Unscrew 3 screws from the card board
Unscrew 2 screws from the cam motor
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Unp lug connector from main board
Take cam motor out
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CAM S ENSOR
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack from chassis
Unscrew 3 screws from chassis
Unscrew 2 screws from cam sensor
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Unp lug connector from main board
Take cam sensor out
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CAPSTAN MOTOR
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack with chassis
Unscrew 3 chassis screws
Unscrew 2 screws from cap stan motor
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Unp lug connector from main board
Take capstan motor out
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CAPSTAN ROLLER
Op en ribbon door. Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack with chassis
Unscrew 3 chassis screws
Unscrew 3 screws from ADF motor frame
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Unscrew 2 screws from tray front
Remove blu e ribbon hold er
Take tray front out
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Release p inch sp ring. (Ap p ly caution when you p ull down the sp ring)
App ly caution when y ou release the spring. Do not stretch the sp ring and do not p ull too
hard.
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Pull p inch roller (see Pin ch Roller section for more details)
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Unscrew 3 card board screws
Unscrew 3 screws holding the cap stan motor frame
Unscrew 3 screws from cam motor frame
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Take p ulley out (from cap stan roller)
Take e-rin g out (from cap stan roller)
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Take p inch roller out
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CARD BOARD 641PS
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack with chassis
Unscrew 3 chassis screws
Unscrew 3 card board screws
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Unp lug 3 connectors from card board
Take out card board
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CARD BOARD CABLE
Op en the ribbon door. Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack with chassis
Unscrew 3 screws from chassis
Unp lug connector from card board
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Unp lug connector from main board
Take card board cable out
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CARD BOARD
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack with chassis
Un-screw 3 chassis screws
Unscrew 3 card board screws
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Unp lug 2 connectors from card board
Take card board out
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CASE BACK
Op en ribbon door
Bend both sides of ribbon door backwards to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack with chassis
Unscrew 3 screws from chassis
Take eject button out of case back
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Unscrew the ground wire screw and unp lug the 2 conn ectors from main bo ard. Separate
case back and chassis
Unscrew 4 screws from bracket
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Unp lug 3 connectors from p ower board. Unscrew the screws from bracket
Take p ower inlet and switch out of case back
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Take case back out
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CASE FRONT
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front from case back with chassis
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CONTROLLER BOARD
Unscrew 4 screws from controller case back
Unp lug connector of controller cable fro m controller bo ard
Unp lug 2 connectors from LCD from controller bo ard
Take out controller IC
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Take controller board out
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CONTROLLER CABLE
Unscrew 4 screws from controller case back
Unp lug connector of controller cable fro m controller bo ard
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Take controller cab le out
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DOOR SENSOR
Op en ribbon door. Bend both sides of ribbon door back to remove it
Unp lug connector from TPH board
Remove glu e on door sensor
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Push ribs on both sides and take door sensor out
Take door sensor out
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EJECT BUTTON
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack with chassis. Unscrew 3 screws from chassis
Take eject button out of case back
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FAN
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws holding the fan
Unp lug fan connector from TPH board
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Take fan out
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IC FLASH
Op en ribbon door. Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack with chassis
Unscrew 3 screws from chassis
Take IC flash out
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JAM SENSOR
Op en ribbon door. Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack with chassis
Unscrew 3 screws from chassis
Remove glu e on jam sensor
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Unp lug connector from main board
Take jam sensor out
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LEADING EDGE SENSOR
Op en ribbon door. Bend both sides of ribbon door back to remove it
Unscrew 2 case back screws
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Sep arate case front and case b ack with chassis
Unscrew 3 chassis screws
Unscrew 3 screws from ADF motor frame
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Unscrew 2 tray front screws
Remove blu e ribbon hold er. Take tray front out.
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Unp lug connector from main board (shown: 640PS main board)
Unscrew screw holding Leading Ed ge sensor (LE Sensor)
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Take Leadin g Ed ge sensor out
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MAIN BOARD = Mother Board (640PS)
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Sep arate case front and case b ack with chassis
Unscrew 3 screws from chassis
Unp lug 2 connectors from main bo ard (shown: 640PS main board)
Sep arate case back and ch assis
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Take IC flash out
Unscrew 2 screws and unp lug other connectors from main board
Take main board out (shown 640PS main bo ard)
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MAIN BOARD = Mother Board (641PS)
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
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Confidential
Sep arate case front and case back with chassis. Unscrew 3 chassis screws
Unp lug 3 connectors from main bo ard (Shown: 641PS M ain Board)
Sep arate case back and ch assis
97
Confidential
Take IC flash out
Unscrew 2 screws and unp lug the other connectors from main board
Please note: The blue square ind icates the location of conn ector for the data link cable
(641PS).
Take main board out (Shown: 641P S M ain Board)
98
Confidential
PINCH ROLLER
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
99
Confidential
Sep arate case front and case back with chassis
Unscrew 3 screws from chassis
Unscrew 3 screws from ADF motor frame
100
Confidential
Unscrew 2 tray front screws
Remove blu e ribbon guid e
Take tray front off from chassis
Blue Ribbon
Guide
101
Confidential
Release p inch sp ring
102
Confidential
103
Push p inch roller up wards (apply a screw driver, be careful not to damage the cap stan
roller in the back)
Capstan Roller (ste al color)
Pinch Rolle r
App ly a screw driver: be careful not to damage the cap stan roller
Capstan roller (be hind Pinch
roller, ste al color). Be care ful
not to damage the Capstan
Scre w Driver
Pinch Rolle r
Confidential
Pull p inch roller out
Take p inch roller out
104
Confidential
Power Board
Unscrew 4 screws from bracket
Unp lug 5 connectors from p ower board
Unscrew screws from bracket
105
Confidential
Unscrew 5 screws from p ower board
Sep arate case back and bracket from power board.
106
Confidential
RIBBON DOOR
Op en ribbon door
Bend both sides of ribbon door back to remove it
Take ribbon door out
107
Confidential
RIBBON LED
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew the Ribbon LED screw
108
Confidential
Unp lug connector from TPH board
Take ribbon LED out
109
Confidential
RIBBON SENSOR
Op en ribbon door
Bend both sides of the ribbon door back to remove it
Unscrew 2 screws from case back
110
Confidential
Sep arate case front and case b ack from chassis
Unscrew 3 chassis screws
Unscrew 3 screws from ADF motor frame
111
Confidential
Unscrew 2 tray front screws
Remove blu e Ribbon hold er. Take tray front out
112
Confidential
Unp lug connector from main board
Take ribbon sensor out
113
Confidential
STATUS LED
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
114
Confidential
Sep arate case front and case b ack with chassis
Unscrew 3 chassis screws
Unscrew 3 card board screws
115
Confidential
Take status LED out from chassis
Unp lug the connector from main bo ard
116
Confidential
Take status LED out
117
Confidential
TPH BOARD
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws and unp lug 7 connectors from TPH board
118
Confidential
Take TPH board out
119
Confidential
TPH LINKAGE
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws
120
Confidential
Sep arate case front and case b ack with chassis
Unscrew 3 screws from chassis
Unscrew 3 screws from ADF motor frame
121
Confidential
Take c-rin g out
Unscrew 2 screws from exit roller
Take shaft out
122
Confidential
Unscrew screw and unplug 2 connectors from TPH board
Take TPH linkage out
123
Confidential
TQL
Op en ribbon door
Bend both sides of ribbon door back to remove it
Unscrew 2 screws from case back
124
Confidential
Sep arate case front and case b ack with chassis
Unscrew 3 screws from chassis
Unscrew 3 screws from ADF motor frame
125
Confidential
Take c-rin g (e-rin g) out
Take TQL out
126
Confidential
TRAY FRONT
Op en ribbon door
Bend both sides of the ribbon door back to remove it
Unscrew 2 screws from case back
127
Confidential
Sep arate case front and case b ack with chassis
Unscrew 3 screws from chassis
Unscrew 3 screws from ADF motor frame
128
Confidential
Unscrew 2 screws from tray front
Remove blu e Ribbon hold er. Take tray front out from chassis
129