hp Mono LaserJets News No. 1

June 1998
Issue No.1
Keith Scoons
Hubert Villiers
Bob Edwards
Steve Oakes
Gary McGaw
UK Response Centre
Hardware Support for Printers
Mono LaserJets
INDEX
New Products
How to tell page sizes in a 5Si
5Si New Formatter Service Note
PH Compatibility Matrix at LaserJet 8000 printer introduction
LaserJet 5Si Fuser.
Spool 32 Error
LaserJet 4000 Coupler breaking
LaserJet 5L Cleaning Kits
Phonebook transfers on the LJ3100
LaserJet 6P,6MP Fuser Pressure Roller Upgrade
New Products:
HP5000 – Replacement for the HP LaserJet 4V, released March’98
HP3100 – New all-in-one mono-laser product based on the LaserJet 6L, released April’98
HP8000 – Replacement for the HP LaserJet 5Si, released May’98
HP Mopier 240 – New mopy productbased on the HP8000, released May’98
HP DeskJet 1120C – Replacement for the DeskJet 1100C (A3 printer), released April’98
2
LaserJet 8000
The HP LaserJet 8000 is the replacement for the HP LaserJet 5Si. It is based on the same engine
with many common parts in the paperpath. New features of the 8000 include FastRes 1200 (pseudo
1200dpi), EIO JetDirect, DIMM memory, Rip once technology for faster printing of multiple copies,
PCL6, "C"-type 10m bi-dir parallel connector, HP PostScript emulation as standard, on-board Paper
Handling Control Board, new Control Panel with rocker (up-and-down) switches and faster processor
chip. Speed (24ppm), resolution (600dpi) and toner cartridge remain the same as the LaserJet 5Si.
è C4085A LaserJet 8000
• 16Mb RAM (8Mb DIMM + 8Mb on-board)
• 2x500sh trays
• 1x 100sh multipurpose tray Mopier capabilities.
è C4086A LaserJet 8000N
• Same as the 8000
• plus EIO JetDirect Card J3111A
è C4087A LaserJet 8000DN
• Same as the 8000
• plus EIO JetDirect Card J3111A
• plus Duplex Assy C4782A
Inventory: Many parts are similar to the LaserJet 5Si.
differences, i.e. the Formatter PCA C4186-69001.
However there are some significant
Accessories
C3909A Toner Cartridge
C4780A Multiple Input Tray (2x500sh MIT)
C4781A 2000-Sh Input Tray (2000sh HCI)
C4782A Duplex Unit
C4783A Low Capacity Output (7-bin Tabletop LCO)
C4784A Stand for 7-bin Tabletop LCO
C4785A Multi-Bin Mailbox (8-bin MBM)
C4787A 5-Bin Mailbox with Stapler (5-bin MBM w stapler)
C3765B 100-Envelope Feeder
C2975A Printer Stand (required when MBM fitted but no HCI)
Parallel Cables:
Replacement Trays:
C2946A 3 Meter / IEEE-1284 Parallel C (small connector)
C2947A 10 Meter / IEEE-1284 Parallel C (small connector)
RG5-3951-000CN Replacement Tray 2
RG5-3952-000CN Replacement Tray 3
Memory: Same as for the LJ4000/5000, i.e. Flash, EDO DIMM and SDRAM DIMM.
J3110A JetDirect EIO Card for Ethernet/10Base-T
J3111A JetDirect EIO Combo Card for Ethernet/10Base-T/LocalTalk
J3112A JetDirect EIO Card for Token Ring
J3113A JetDirect EIO Card for 10/100 Base-TX
Documentation: Service Manual Bundle
C4085-99021
3
PART
PART#
Front Cover
Multi-Purpose Tray Feed Roller
Multi-Purpose Separation Pad
MP Tray Pickup assy.
Paper Pickup Assembly.
Feed/ Separation Rollers
Pickup Roller
Registration Assembly.
Delivery assembly
Paper Height Lever
Paper Sensing Lever
Fusing Assembly 220V
Fuser Flag
DC Controller PCB
Laser/ Scanner Assembly.
Transfer Roller Assembly.
Main Motor
RB1-6495-000CN
RB1-6730-000CN
RF5-1455-000CN
RG5-1880-100CN
RG5-1852-160CN
RF5-1834-000CN
RF5-1835-000CN
RG5-1833-040CN
RG5-1874-000CN
RB1-6693-000CN
RB1-6692-000CN
RG5-4448-000CN
RB1-6614-000CN
RG5-1844-050CN
RG5-1895-000CN
RF5-1412-000CN
RH7-1260-000CN
EXCHANGE PARTS
DC Controller
Paper Pickup Unit
Fusing Assy. 220v
High Voltage Power Supply
Laser/Scanner Assembly
User Maintenance Kit 220v
Power Supply Assembly 220v
C3166-69010
C3166-69014
C3166-69018
C3166-69005
C3166-69006
C3972-69002
C3166-69008
Exchange Formatter PCA
C4186-69001
4
How to tell page sizes in a 5Si
Those of you who have worked on a LaserJet 5Si will know one little quirk it has is to keep secret
about tray sizes. The configuration page prints out the Tray TYPE of all trays (1,2,3 & 4 if installed),
but only states the page SIZE of Tray 1. This can sometimes be a problem if the tray size-select
switches are faulty as the printer will ignore the tray being requested and offer another tray instead. It
can be difficult too for Call Qual when talking to a customer to determine if they have inadvertantly
placed a guide in the wrong slot and selected a wrong size for the paper being used.
Here is how to determine the page size which the printer believes is set for each tray:
1) Via the front panel set a DIFFERENT paper TYPE for each tray, i.e.
Tray 1 = RECYCLED
Tray 2 = LETTERHEAD
Tray 3 = BOND
Tray 4 = PREPRINTED
Note it doesn't matter what is in the tray; these are merely labels to help identify a particular tray.
2) Ensure there is no paper in Tray 1.
3) Run PAPERPATH TEST (last item in the TEST menu), and select the following:
INPUT TRAY = 1
NUMBER OF COPIES = 1
As soon as the test tries to run it will flash a message to say tray 1 is out of paper, i.e.
LOAD TRAY 1
RECYCLED ISO A4
Press ONLINE,
PRINT ON PREPRINTED
ISO A3 INSTEAD?
Press ONLINE,
PRINT ON LETTERHEAD
ISO A4 INSTEAD?
Press ONLINE,
PRINT ON BOND
ISO A4 INSTEAD?
To come out of this press SELECT to complete the test (for a tray containing paper).
Using the information on tray types from the Config Page, this tells us the printer believes:
A3 (PREPRINTED)
is in Tray 4
A4 (LETTERHEAD) is in Tray 2
A4 (BOND)
is in Tray 3
If the actual paper loaded does not correspond to these figures then suspect the tray size-select
switches or else paper guides in the wrong location.
5
LaserJet 5Si / 5SiMX / 5SiNX / 5Si Mopier
Abbreviated
SERVICE NOTE C3166A-10B
C3167A-10B
Serial Number: 220V: XXYC00000 - XXYJ99999
XX = US, NL, or SG Y = Q,R, or S for 220V
Part Numbers:
Exchange
New
C3168-69006
C3168-67906
LaserJet 5Si Printer Firmware Roll to Version 9.95e
Parts Required: Formatter Firmware Assembly
Situation:
The firmware for the LaserJet 5Si has rolled to a new version, which includes corrections
to specific, error conditions that exist in previously released versions. If any of the
problems listed below are experienced, an upgrade to the new version is recommended.
Solution:
Hewlett-Packard Company has made available the version 9.95e formatter firmware
assembly for the LaserJet 5Si Family of products as of May 1, 1998.
Fixes for the 9.7 version of firmware included in the new 9.95e version of firmware
are:
79 Service Errors (060D) 21 - Memory Overflow error: Firmware data compression did
not work due to a problem with a timeout error generated by an ASIC not responding to a
compression/decompression command.
56.01 Errors (Illegal input device): When coming out of power-save mode, the printer
generated a 56.01 error.
Duplex print jobs being printed out of sequence: This problem occurred intermittently.
Occasionally, when a job was printed in duplex mode, the output would be out of
sequence.
"Processing from Tray n" hangs: This problem was related to duplex printing out of
sequence.
Duplex jams when using PostScript. Implemented code to correct functionality.
Slow printing with the PCL driver: When rendering reasonably sized files, the driver
memory block became fragmented. As a result, in some cases, the rate of output was
dramatically reduced to approximately 4ppm.
NOTE: This same problem may occur with the 9.95 formatter firmware assembly if it does
not have at least a total of 12MBytes of RAM.
79 Service Errors (08fe) in Dutch Language: Inserted a line feed in the message on the
control panel when attempting to set the number of lines of a page so that a message fits
in the 16x2 character field.
6
HISTORY
Firmware version 9.7 included the following fixes for Firmware version 9.1, and
Firmware version 8.6
FIXED A SLOW PRINTING PROBLEM:
Fixed a memory fragmentation quotient calculation, and also the 600-dpi-raster graphics
problem. Both these problems caused the printer to print at about 5 PPM.
FONT PROBLEM FIXED:
It appears that 3 fonts out of HP's entire font library had negative values for stroke weight,
which the firmware represented as very positive stroke weight fonts. To the user, these
very light fonts appeared as very thick (heavy) fonts, once they were downloaded to the
disk, and the user referenced them by attribute.
FIXED A SPECIFIC PROBLEM WITH AN MIO DEVICE BUILT BY DCO:
This was the Network to Parallel box, which was being tested by DCO for compatibility
against version 9.1 code. It was found that it was failing once every 10 files that were
being sent to it.
HUNG IN "PROCESSING JOB":
The printer has the potential to hang up and not respond to any keypresses from the front
panel. The front panel will display "PROCESSINGJOB". To get out of this locked up mode
required power-cycling the printer. This is corrected in the 9.1 firmware.
20 MEMORY OVERFLOW PROBLEM
There was a problem with memory allocation in the 7.9 firmware, which allocated the
maximum amount available. This resulted in numerous memory overflow problems. The
problem was fixed to allocate just the required amount of memory. This is corrected in
the 9.1 firmware.
FORM LENGTH SELECTION FROM THE FRONT PANEL
This function can be found in the PCL MENU structure of the control panel.Slow Printing of
forms: Versions 7.9, 8.5 & 8.6 firmware had a problem handling raster graphics in 300dpi
mode. The problem was that the size of the raster strip used was too small and inefficient.
The fix implemented allows formatter to run near engine speed. This is corrected in the 9.1
firmware.
INTERNAL TRAYS NOT LIFTING WHILE IN POWERSAVE MODE.
If the user opened one of the internal trays while the printer was in Powersave mode, it
would not lift it after it was closed. This would result in a "Out of Paper" message for that
tray.
IMPROPER SELECTION OF TRANSPARENCIES AND CARDSTOCK ALLOWED
FROM INTERNAL TRAYS:
There was a support issue with customers being able to select transparencies and
cardstock as a paper type from the front panel, even though they were not supported from
internal trays 2, and 3. It was hard to explain to customers that we don't support those
paper types from those trays, when they appeared as a selection on the front panel.
These choice no longer appear as a choice from the front panel.
Firmware version 8.6 included fixes for the following problems in Firmware ver 8.5
MIO and NVRAM Reset problems.
7
Firmware version 8.5 included fixes for the following problems in firmware ver 7.9
Fixed numerous 79 Service errors
Printer hangs if printing after a power Cycle Reset was done when the
printer was in power save mode.
Fixed a hang in “Processing Job” when printing a PostScript Duplex job and the source
paper tray runs out of paper when the job is not finished.
Fixed bug where PostScript Configuration page would "hang" the printer
if there was an error (TRAY 2 EMPTY) on the front panel.
Hang in internal test at power up was fixed.
Fixed a bug that wouldn't let you select the pitch size for a permanent soft font.
20 Memory Overflow problem fixed.
Crash with Cyrillic font Simm.
Fixed a bug where PJL default JOBID only works if diagnostics is on.
OS/2 Job-Cancel bug fixed.
Fixed a bug that hangs the printer when the menu item MIO CFG is set to YES (Configure)
and then a PCL Configuration page is selected to print.
Changed the string ISO A3 paper size to A3.
Fixed a floating Point problem where HP was not properly initializing the floating point
registers.
Hang while canceling a PostScript job. (This was a problem when doing a C in the middle
of sending a PostScript job in a UNIX environment and then selecting Cancel Job from the
front panel.)
Action:
Any formatter assembly, that exhibits any of the previously, described problems listed in
this service note should be replaced by the version 9.95 Formatter Firmware Assembly,
exchange part number C3168-69006 or new part number C3168-67906. Removal and
replacement instructions are as described in the troubleshooting section of the HP
LaserJet 5Si service manual.
8
Ø PH Compatibility Matrix at LaserJet 8000 printer introduction
PH Device
HP LaserJet
8000/N/DN
Printer and
Mopier 240
HP LaserJet 5Si
Printer Family
and 5Si Mopier
Comments
Envelope
Feeder
C3765B
C3765B
C3765B works in LaserJet 5Si,NX,MX and
8000,N,DN Printers and Mopier 240, 5Si
Mopier
2,000-Sheet
Input Tray
C4781A
C3763A, C4781A
(Note 1)
Note 1: For C4781A to work in a 5Si,NX,MX
and 5Si Mopier, it requires purchasing a Paper
Handling controller C3768A separately.
2x500-Sheet
Input Tray
C4780A
N/A
Not backward compatible to 5Si,NX,MX nor
5Si Mopier
7-Bin Tabletop
Mailbox
C4783A
N/A
Not backward compatible to 5Si,NX,MX nor
5Si Mopier
Stand for 7-Bin
Tabletop
Mailbox
C4784A
N/A
Not backward compatible to 5Si,NX,MX nor
5Si Mopier
8-Bin Mailbox
C4785A
C4785A
Ø C4785A works in LaserJet 5Si/NX/MX
and 8000/N/DN Printers and Mopier 240,
5Si Mopier.
Ø When connected to HP LaserJet 5Si series,
Mopier and printer cabinet, it needs to
purchase separately a Paper Handling
Controller C3768A and Power Box
Upgrade Kit C4789A.
Ø When connected to HP LaserJet 8000 series
or Mopier 240 and printer cabinet, it
requires a Power Box Upgrade Kit C4789A
Ø When connected to a 5Si series or 5Si
Mopier, it requires a Power Box Upgrade
Kit C4789A
Duplex Printing
Accessory
C4782A
C3762A, C4782A
C4782A works in LaserJet 5Si,NX,MX and
8000,N,DN Printers and Mopier 240, 5Si
Mopier
5-Bin Mailbox
with Stapler
C4787A
C4787A
Ø C4787A works in LaserJet 5Si,NX,MX
and 8000,N,DN Printers and Mopier 240 &
5Si Mopier
Ø When connected to HP LaserJet 5Si series,
Mopier and printer cabinet, it needs to
purchase separately a Paper Handling
Controller C3768A and Power Box
Upgrade Kit C4789A.
Ø When connected to HP LaserJet 8000 and
printer cabinet, it requires a Power Box
Upgrade Kit C4789A
Ø When connected to a 5Si series or 5Si
Mopier, it requires a Power Box Upgrade
Kit C4789A
9
3 staple
cartridges
LaserJet 5Si,
8000
C3772A
C3772A
C3772A works in both 5-Bin Mailbox with
Stapler products C3774A and C4787A
Power Box
Upgrade Kit
C4789A
C4789A
Required in following cases:
Ø When adding either an 8-Bin Mailbox
C4785A or a 5-Bin Mailbox with Stapler
C4787A to a LaserJet 5Si,NX,MX printer
or 5Si Mopier
Ø When adding an 8-Bin Mailbox C4785A or
a 5-Bin Mailbox with Stapler C4787A to a
LaserJet 8000,N,DN printer or Mopier 240
with printer cabinet C2975A
Paper Handling
Controller
N/A
C3768A
Required in following cases:
Ø HP LaserJet 5Si series, 5Si Mopier with
printer cabinet C2975A with either 8-Bin
Mailbox C3764A, C4785A or 5-Bin
Mailbox with stapler C3774A, C4787A
Ø HP LaserJet 5Si series, 5Si Mopier with
2,000-sheet Input Tray C4781A
Printer Cabinet
C2975A
Note 1
C2975A
Notes 1
Note 2
Ø Note 1: If HP printer cabinet is connected to
HP LaserJet 5Si series, 5Si Mopier or 8000
series, Mopier 240 and 8 Bin Mailbox
C4785A or 5 Bin Mailbox C4787A then it
is required to purchase a Power Box
Upgrade Kit C4789A separately
Ø Note 2: If HP printer cabinet is connected to
HP LaserJet 5Si series and 8 Bin Mailbox
C4785A or 5 Bin Mailbox C4787A then it
is required to purchase a Paper Handling
Controller C3768A separately
10
LaserJet 5Si Fuser.
The new type C3166-69018 has been out for a few months. This has a cleaning roller fuser
in the bottom to help eliminate the possibility of fuser contamination.
How do you tell a fuser is the new type with a cleaning roller? Turn the fuser upside down
and look through 2 holes in the bottom, one at each end. If a (steel) shaft can be seen, then
that fuser has the cleaning roller fitted.
Currently there are some shortages but these are being addressed.
Spool 32 Error
Problem: Spool 32 error when printing to Hewlett-Packard LaserJet (III/4/5/6) printers from
Windows 95 workstations with EMF spooling enabled. Error occurs with varying frequency.
This is an operating system error and is specific to the Microsoft EMF subsystem spooler. With
EMF spooling the error occurs with both Microsoft and HP drivers; with RAW spooling enabled the
error does not occur with any consistency with either driver loaded. Microsoft suggest to install a
new SPOOLSS.DLL file (from MS) on each workstation with the problem and then go to properties
and under Details select “Start Printing after last page is spooled.” This should help although not
eliminate the problem. This problem really needs to be solved by Microsoft but if the customer
insists HP find a solution then support/ECSC need to get involved.
LaserJet 4000 Coupler breaking
We have had numerous cases of a coupler breaking in the pick-up area. The coupler, p/n RB1-8877000CN usually shears off at one end, with the smaller piece often disappearing. The coupler is part
of the pick-up drive assembly but these are different for the upper/lower trays in a LJ4000T and
different again for the 500sh tray in a LJ4000. In any case, it is usually only necessary to replace the
coupler (common across each drive assy). One reason given by division for the failure is over filling
of the tray, although this seems unlikely to be the main cause (which is probably just due to weak
plastic).
LaserJet 5L Cleaning Kits
Since the middle of last year a cleaning kit has been available from fulfillment houses (Starpak) to
“rejuvenate” the pick-up roller. This was found necessary on some units which had low usage and
were experiencing pick-up problems. The reason for this was residual oil (from the rubber curing
process during manufacture) coming to the surface of the roller. By cleaning (scrubbing) with the
pre-moistened cloth in the kit and drying with the lint-free cloth, the surface oil can be removed.
Typically this may need to be repeated once or twice (at 3 month intervals) until all the residual oil
has been removed. Heavy usage units never see this problem. The manufacturing process has also
been changed so that replacement pick-up rollers do not have any residual oil. Note this does not
stop pick problems occurring due to poor media. The cleaning kit can be obtained by contacting the
ECSC or phoning Starpak direct on 01429-865511 and asking for instruction sheet C3990-90994.
This kit has not been set up with a part number so cannot be ordered through the normal parts
channel.
11
Phonebook transfers on the LJ3100
A phonebook transfer may be required if a customer has entered 150+ phone numbers into his 3100
and a service agent needs to replace the Formatter (this obviously assumes the printer is capable of
sending a fax). These are the alternatives:
• Enter the numbers manually (lengthy)
• Perform a Fax-to-Fax phonebook transfer (need second fax)
• Access config from a PC and upload the phonebook (need a PC. If PC switched off or
screen is closed, then phonebook is lost)
Fax-to-Fax phonebook transfer
Here is the process. Note the steps must be followed in the order listed to prevent timeouts while
waiting for the other fax. A second fax is available in the UK Response Centre (log a Lynx call to
request access).
RECEIVING FAX
Step 1 - Fax Settings
è All Faxes
è Remote Retreival
è ON
è Password
Step 2 - Service
è Remote Setup
è RECEIVE Setup
è Enabled
è Password
SENDING FAX
Step 3 - Service
è Remote Setup
è SEND Setup
è Send Parameters/Send Phonebook Yes/No -> Password
è Phone number
Obviously all passwords must be the same (and 4-digits).
After the phone number is entered in the sending fax the receiving fax is contacted, the calling tone is
heard and then both machines go quiet for around 6 minutes (both displaying Remote Setup). After
this time the sending fax prints out a Confirmation report (if configured) saying "Job Completed”,
and both faxes revert to the READY state.
Uploading Phonebook to a PC
1
2
3
Click on the CONFIGURE box in the main Jetsuite menu
Click on the top icon to access config parameters
On the next menu click on SPEED DIAL CONFIGURATION (LOADING appears on the PC
screen and UPLOADING TO PC appears on the LJ3100 LCD)
4
The contents of the LJ3100 phonebook are displayed on the screen. At this point it is possible to
edit the phonebook by adding or deleting names and telephone numbers. With this information
12
displayed on the screen it is then possible to either remove or replace the formatter board and
have the ability to restore the contents of the customer’s phonebook.
If this window is closed when the formatter has been removed the only way to restore the
phonebook is to manually input the details again.
5
Re-connect the LJ3100 to the PC and click OK . DOWNLOADING FROM PC is displayed on
the LJ3100 LCD. When complete the download can be verified by printing the contents of the
phonebook on the LJ3100.
13
LaserJet 6P,6MP Fuser Pressure Roller Upgrade
A new pressure roller (p/n RB1-9210-000CN) is available to make the fusers more tolerant to fuser
contamination, i.e. non-repetitive black spots on one or both sides of a printed page. The black spots are
poorly fused to the paper and can be removed using a fingernail. Inspection of the red colored, fuser
pressure roller reveals black toner/paper dust contamination on the roller.
The new pressure roller can be identified by a small groove in the steel shaft halfway between the drive gear
and the rubber part of the roller.
The use of a Cleaning Utility may also be required:
Cleaning Utility
Contamination can be cleaned from the surface of the pressure roller using a software “Cleaning Utility”. The
problem will often return within the life of one toner cartridge. After installing this upgrade, the interval
between failures should be greater than the life of one toner cartridge. A message for customers will soon be
contained in the toner cartridge box. The message explains how to obtain and use the Cleaning Utility
program, when replacing the toner cartridge. The utility is available from local fulfillment and at the following
web site.
http://www.hp.com/cposupport/printers/software/lj123en.exe.html (otherwise log a lynx call to obtain).
This problem only occurs with some types of paper combined with local environmental humidity. If this
problem reoccurs after this upgrade has been installed, the only solution to this problem is to use the
cleaning utility or try a different type of paper.
Replacement Procedure:
Remove the fusing assembly from the unit.
Remove the 2 fuser tension springs located at each end of the fuser.
Remove the metal cover plate.
Replace the red colored fuser pressure roller using the following time saving hint.
Time saving hint: The pressure roller can be removed without disconnecting all the wires on the heating
element. Disconnect the large slide off connector at gear end of the heating element. Lift the disconnected
end of the heating element in such a way that will allow you to slide the pressure roller out from under the still
connected end of the heating element. Move the drive gear and the rubber continuity gear from the old
pressure roller to the new pressure roller. Slide in the new roller and reassemble.
With practice, this procedure can be performed in less than 10 minutes.
After completing the upgrade, a green dot should be placed near the serial number to indicate that the unit
has been upgraded. (Such as Avery ¼ inch, 6mm, round color coding labels)
14