Computer Care Tech Tips

Two common error codes are not listed in the service manual.

The “61:05”and “63:03” error codes are not listed in the service manual. These error codes could be related to error code “79” which causes the printer to hang in “Initializing” in the control panel. You will see that the 12-black squares when initializing the printer will be empty, or just 6-black squares will fill, and thus prevent the printer from coming to “Ready”. We have found out the correct fix is to replace the Jet direct Card, reload the new release of the drivers, and do the most current Firmware Upgrade.

If the error re-appears, re-create the file and try printing again. If the file is Postscript, check to see if it is Binary. If the file is Binary, use Apple Talk to send the file to the printer. If Apple Talk is not being used to send the Binary file to the printer, then try changing the printer’s internal Postscript settings to Binary. To do this, you need to go into: Setup Menu, PostScript Settings, Encoding, Binary. Next, you need to reconfigure the Network card, 10/100 Ethernet. This is not just a plug & play type of network Card and will need to be reconfigured if the issue is still there. The next part to replace is the Formatter. We have two types of Formatters: PC Board, HP-GL/2 Formatter PC Board, p/n C7779-69272, (comes with HDD) or PC Board: HP-GL/2 and RTL formatter PC board, p/n C7769-69441 (comes without HDD). Check to see which version of the Formatter your printer has been using. Consequently, in order to reconfigure the network, you must have the correct IP Address. The Sub-Net Mask and Default Gateway need to be reconfigured on the Network.

To Reconfigure the IP Address on DesignJet 500/800
Start by changing the parameters using the printer’s front panel:
1. Access the Printer Configuration menu in the printer's front panel.
2. Scroll to I/O Config and press “Enter”
3. Scroll to Config Card and press “Enter”
4. Scroll to Configure Network = Yes and Continue
5. Select Configure TCP/IP = Yes and Continue
Inside the link configuration section, it will be possible to change all the relevant parameters.

Error Codes for DesignJet plotter models Z2100 / Z3100 / Z3100ps GP Photo Printer Series
Use at your own risk!!

Applies to models:
..HP designjet Z2100 Photo Printer 24 inch (Model Q6675A)
..HP designjet Z2100 Photo Printer 44 inch (Model Q6677A)
..HP designjet Z3100 Photo Printer 24 inch (Model Q5669A)
..HP designjet Z3100 Photo Printer 44 inch (Model Q6659A)
..HP designjet Z3100ps Photo Printer 24 inch (Model Q5670A)
..HP designjet Z3100ps Photo Printer 44 inch (Model Q6660A)

System Error Codes explain which component/system is failing and what
action should be taken to resolve the problem.

System Error Codes are displayed directly on the front panel (but can
also be seen on the Information Page) and have been defined in the format
XX.YZ. or XX.n:YZ.m.

. XX: Can be a malfunctioning subsystem or process (2 digits).

. n: Subsystem or process Index (if more than one used in the product) -
Optional.

– e.g. Identify the Ink Supply (color and number).
. Y: Who should perform the action (1 digit) - (0 for User or1 for Service
Engineer).
. Z: Action to perform (1 digit).

The following table explains the XX part of the System Error Code or
Warning:

Code Component/System
01.0 Main PCA/Electronics module
01.1 Add-on Electronics module (printmech)
01.2 Print Mech PCA
02.1 Carriage PCA
02.2 Carriage PCA
03 Power supply
05.1 Fan of the Formatter
06 Formatter
08 Front panel
11 Trailing cable
12.n Carriage flex circuit n to pens
21 Service station
21.1 Service station
22.0 Bongo error BPS0 (ISS Left)
22.1 Bongo error BPS1 (ISS Left)
22.2 Bongo error BPS2 (ISS Right)
22.3 Bongo error BPS3 (ISS Right)
24 Tube assembly (IDS)
26.n Ink Cartridge (color = n)
27 Printhead error
31 Cutter
38 Output Tray
41 Paper-axis motor
41.1 Paper-axis motor
42 Scan-axis motor
44 Aerosol fan
47 Star wheel motor
48 PPS mechanism
51 Window Sensor
52 Drop detector
55 Line sensor
56 Drive roller analog encoder sensor
58 Color sensor (ESP)
61 Error job
62 PC Interface
63 Input/output through LAN card
64 Input/output through USB port
65 Input/output (not known what port)
66 Input/output (not known what port)
67 Input/output through FireWire port
68 Loss of engine counters tracking
71 Memory management
71.19 PrintMech PCA/Formatter
72 Firmware error
73 Servo
74 Firmware upgrade
74.1 Media Profile Update
75.1 Preventive Maintenance kit #1
75.2 Preventive Maintenance kit #2
75.3 Preventive Maintenance kit #3
76 Disk Full
77 Web access application
78 Borderless
78.1 Media Settings
79 Assertion (uncontrolled FW error)
79.1 Recoverable Firmware Error
81 Media advance
81.1 Media advance
84 Roll Feed
85 Media-axis encoder reading
86 Carriage Movement
87 Scan-axis encoder reading
93 Ink Pumping
94 Color calibration
94.1 Profiler
95 Printhead alignment
97 Paper advance calibration

The following table explains the YZ part of the System Error Code or
Warning:

Code Recovery Action Response
00 Replace
Possible for
customer to
perform
action
01 Reseat/Reconnect/Clean/Adjust (manually)
02 Calibrate/Adjust (using Automatic Process)
03 Power OFF and Restart the Printer
04 Upgrade System Firmware
05 Upgrade Driver or Computer Software
06 Add Accessory
07 Escalate
08 Send Plot Again
09 Wrong Part Installed
10 Replace
hp qualified
personnel
assistance
required
11 Reseat/Reconnect/Clean/Adjust (manually)
12 Calibrate/Adjust (using Automatic Process)
13 Power OFF
14 Upgrade System Firmware
15 Upgrade Driver or Computer Software
16 Add Accessory
17 Escalate
18 Send Plot Again
19 Wrong Part Installed

System Error Codes and Warnings - Descriptions
This sections describes each of the system error codes and warnings that
could be encountered while using the printer and provides the remedial
action required to solve the problem detected.
System Error: 01.0:YZ
Problem
Description:
HCI queue does not end after 2 seconds.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..If the System Error continues, replace the Formatter . Page 8-147.
..If the System Error continues, replace the Main PCA . Page 8-151.
System Error: 01.1:YZ
Problem
Description:
NVM backup: not found, read, write or read back error.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..If the System Error continues, replace the Main PCA . Page 8-151.
..If the System Error continues, replace the Formatter . Page 8-147.
System Error: 01.2:YZ
Problem
Description:
Print Mech PCA fault or NVM backup failure.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..If the System Error continues, replace the PrintMech PCA . Page 8-68.
Only replace one component at a time and check if the
error has gone before replacing another component. Using
this procedure you will be able to determine exactly which
component failed.

System Error: 02.1:YZ
Problem
Description:
Encoder seems to be wrong.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Carriage Assembly stopper is correctly installed.
..Replace the Carriage Assembly . Page 8-92.
..If the System Error continues, replace the Encoder Strip . Page 8-81 and
Encoder Sensor . Page 8-159.
System Error: 02.2:YZ
Problem
Description:
Problem with the Carriage PCA.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Trailing Cable is not damaged.
..Check that the Trailing Cable is correctly connected between the Main
PCA and Carriage PCA.
..Replace the Carriage Assembly . Page 8-92.
..If the System Error continues, replace the Formatter . Page 8-147.
System Error: 03:YZ
Problem
Description:
Problem with Power Supply Unit.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Perform the Electronics Module Test Diagnostic to troubleshoot the
problem further . Page 4-22.
..If the System Error continues, replace the Power Supply Unit (PSU) . Page
8-151.
System Error: 05.1:YZ
Problem
Description:
CPU Fan is stopped or burnt.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Replace the Power Supply Unit (PSU) . Page 8-151.
..If the System Error continues, replace the Main PCA . Page 8-151.
System Error: 06:YZ
Problem
Description:
Main NVM failure - not detected, read/write failed or readback error.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..If the System Error continues, replace the Formatter . Page 8-147.
System Error: 08:YZ
Problem
Description:
Problem with the Front Panel.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Front Panel interface cable is not damaged and is
correctly connected between the Main PCA and the Front Panel.
..Check that the memory module in the Formatter is installed correctly.
..Check that the connections between the Formatter, the Formatter and the
Formatter are not damaged and are correctly connected.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.
..If the System Error continues, replace the Main PCA . Page 8-151.
..If the System Error continues, replace the Formatter . Page 8-147.
..If the System Error continues, replace the Front Panel . Page 8-45.
System Error: 11:YZ
Problem
Description:
Trailing Cable does not seem to be detected.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Trailing Cable is not damaged.
..Check that the Trailing Cable is correctly connected between the Main
PCA and Carriage PCA.
..If the System Error continues, replace the Formatter . Page 8-147.
..If the System Error continues, replace the Main PCA . Page 8-151.
..If the System Error continues, replace the Carriage PCA . Page 8-126.

System Error: 12.n:YZ
Problem
Description:
Carriage & PCA Main doesn’t detect pens.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Trailing Cable is not damaged.
..Check that the Trailing Cable is correctly connected between the Main
PCA and Carriage PCA.
..Check that the Printhead has not failed and is not erroneous.
..Check that the Flex circuit contacts and Printhead contacts are clean.
..If the System Error continues, replace the Carriage PCA . Page 8-126.
..If the System Error continues, replace the Main PCA . Page 8-151.
System Error: 21:YZ
Problem
Description:
Service Station.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Check the Primer Tubes. Reconnect the power cord and
power On the Printer.
..Make sure that the Service Station path is clear. Remove any visible
obstacles (e.g. screws, plastic parts, etc...) restricting the movement of the
Service Station.
..Perform the Service Station diagnostic test to troubleshoot the problem
further . Page 4-43.
..If the System Error continues, replace the Service Station . Page 8-57.
..If the System Error continues, replace the PrintMech PCA . Page 8-68.
System Error: 21.1:YZ
Problem
Description:
Service Station servo shutdown.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Check the Primer Tubes. Reconnect the power cord and
power On the Printer.
..Perform the Service Station diagnostic test to troubleshoot the problem
further . Page 4-43.
..If the System Error continues, replace the Service Station . Page 8-57.
..If the System Error continues, replace the PrintMech PCA . Page 8-68.

System Error: 22.0:YZ
Problem
Description:
ISS Left BPS0 error.(Supplies 0, 1, 2).
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the cables between the Left Ink Supply Station and Main PCA
the are not damaged and are correctly connected.
..Perform the Ink Delivery System diagnostic test to troubleshoot the
problem further . Page 4-39.
..If the System Error continues, replace the Left Ink Supply Station . Page
8-135.
..If the System Error continues, replace the Main PCA . Page 8-151.
..If the System Error continues, replace the Formatter . Page 8-147.
System Error: 22.1:YZ
Problem
Description:
ISS Left BPS1 error.(Supplies 3, 4, 5).
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the cables between the Left Ink Supply Station and Main PCA
the are not damaged and are correctly connected.
..Perform the Ink Delivery System diagnostic test to troubleshoot the
problem further . Page 4-39.
..If the System Error continues, replace the Left Ink Supply Station . Page
8-135.
..If the System Error continues, replace the Main PCA . Page 8-151.
..If the System Error continues, replace the Formatter . Page 8-147.
System Error: 22.2:YZ
Problem
Description:
ISS Right BPS0 error.(Supplies 0, 1, 2).
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the cables between the Right Ink Supply Station and
PrintMech PCA the are not damaged and are correctly connected.
..Perform the Ink Delivery System diagnostic test to troubleshoot the
problem further . Page 4-39.
..If the System Error continues, replace the Right Ink Supply Station . Page
8-135.
..If the System Error continues, replace the Main PCA . Page 8-151.
..If the System Error continues, replace the Formatter . Page 8-147.

System Error: 22.3:YZ
Problem
Description:
ISS Right BPS1 error.(Supplies 3, 4, 5).
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the cables between the Right Ink Supply Station and
PrintMech PCA the are not damaged and are correctly connected.
..Perform the Ink Delivery System diagnostic test to troubleshoot the
problem further . Page 4-39.
..If the System Error continues, replace the Right Ink Supply Station . Page
8-135.
..If the System Error continues, replace the Main PCA . Page 8-151.
..If the System Error continues, replace the Formatter . Page 8-147.
System Error: 24:YZ
Problem
Description:
Ink Setup failure
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Try purging the Ink Supply Tubes again once the Printer has been
restarted.
..Install new Cartridges in the printer and try purging the Ink Supply Tubes
again.
System Error: 26.n:YZ (color = n)
Problem
Description:
Ink Cartridge error (color = n)
Corrective Action: Try the following:
..Remove the Ink Supply Cartridges and check that they are the correct
ones for this printer and are in the proper order.
..Check that the Printer has the latest firmware. If not, update the firmware
to the latest version.

System Error: 27:YZ
Problem
Description:
An error has occurred in Printhead detection.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Remove the Printheads from the Carriage Assembly and reinsert them.
..Replace the Printheads.
..Replace the Carriage Cover (Flex Circuit) . Page 8-121.
..Replace the Carriage PCA . Page 8-126.
..Replace the Formatter . Page 8-147.
System Error: 29.n:YZ
Problem
Description:
An error has occurred in Printhead detection.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Remove the Printheads from the Carriage Assembly and reinsert them.
..Replace the Printheads.
..Replace the Carriage Cover (Flex Circuit) . Page 8-121.
..Replace the Carriage PCA . Page 8-126.
..Replace the Formatter . Page 8-147.
System Error: 31:YZ
Problem
Description:
An error has been detected with the cutter.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check the Cutter Assembly for blockage or any other obvious problems.
..Replace the Cutter Assembly . Page 8-40.
System Error: 38:YZ
Problem
Description:
An error has been detected with the Media Output Tray.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check the Media Output Assembly for blockage or any other obvious
problems.
..Replace the Media Output Assembly . Page 8-13.

System Error: 41:YZ
Problem
Description:
Electrical fault or current limit in Media-Axis Motor.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Open the Window and check for any visible obstacles restricting the
movement of the Media Advance Roller. If there is a wrinkled mass of
media inside the paper path, lift the Pinch wheels (using Media Lever)
and clear the obstruction.
..Perform the Paper Drive diagnostic test to troubleshoot the problem further
. Page 4-18.
..Check that the Media Advance Drive cable is not damaged and is
correctly connected to the Main PCA.
..Replace the Media Advance Drive . Page 8-162.
..If the System Error continues, replace the Main PCA . Page 8-151.
System Error: 41.1:YZ
Problem
Description:
Electrical fault or current limit in Media-Axis Motor.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Open the Window and check for any visible obstacles restricting the
movement of the Media Advance Roller. If there is a wrinkled mass of
media inside the paper path, lift the Pinch wheels (using Media Lever)
and clear the obstruction.
..Perform the Paper Drive diagnostic test to troubleshoot the problem further
. Page 4-18.
..Check that the Media Advance Drive cable is not damaged and is
correctly connected to the Main PCA.
..Replace the Media Advance Drive . Page 8-162.
..If the System Error continues, replace the Main PCA . Page 8-151.
System Error: 42:YZ
Problem
Description:
Electrical fault or current limit in Scan-Axis Motor..
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Open the Window and check for any visible obstacles restricting the
movement of the Media Advance Roller. If there is a wrinkled mass of
media inside the paper path, lift the Pinch wheels (using Media Lever)
and clear the obstruction.
..Perform the Scan Axis diagnostic test to troubleshoot the problem further
. Page 4-7.
..Check that the Scan-Axis Motor cable is not damaged and is correctly
connected to the PrintMech PCA.
..Replace the Scan-Axis Motor . Page 8-104.
..If the System Error continues, replace the PrintMech PCA . Page 8-68.
System Error: 44:YZ
Problem
Description:
Fan Electrical fault, or not connected..
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Aerosol Fan cable is not damaged and is correctly
connected to the PrintMech PCA
..Replace the Aerosol Fan Assembly . Page 8-62.
..If the System Error continues, replace the PrintMech PCA . Page 8-68.
System Error: 47:YZ
Problem
Description:
Star wheels motor error..
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Starwheel Assembly cable is not damaged and is correctly
connected to Main PCA.
..Open the Window and check for any visible obstacles restricting the
movement of the Starwheel Assembly, then clear the obstruction.
..Perform the Scan Axis Starwheel diagnostic test to troubleshoot the
problem further . Page 4-7.
..Replace the Starwheel Motor . Page 8-184.
..If the System Error continues, replace the Main PCA . Page 8-151.

System Error: 48:YZ
Problem
Description:
PPS system failure.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Pen to Paper Space (PPS) Solenoid cable is not damaged
and is correctly connected to the PrintMech PCA.
..Perform the Scan Axis PSS diagnostic test to troubleshoot the problem
further . Page 4-9.
..Replace the Pen to Paper Space (PPS) Solenoid . Page 8-70.
..If the System Error continues, replace the PrintMech PCA . Page 8-68.
System Error: 51:YZ
Problem
Description:
Window Sensor failure.
Corrective Action: Try the following:
..Check that the Window Position Sensor cable is not damaged and is
correctly connected to the PrintMech PCA.
..Perform the Sensors Test to troubleshoot the problem further . Page 4-33.
..Replace the Window Position Sensor . Page 8-51.
System Error: 52:YZ
Problem
Description:
The printer has detected a faulty pare in Drop Detector (DDP).
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Drop Detector cable is not damaged and is correctly
connected to the PrintMech PCA.
..Check that the Service Station cable is not damaged and is correctly
connected to the PrintMech PCA.
..Replace the Drop Detector . Page 8-61.
..Reset the Calibration Flag of the Drop Detector . Page 5-14.
..If the System Error continues, replace the PrintMech PCA . Page 8-68.
..If the System Error continues, replace the Formatter . Page 8-147.

System Error: 55:YZ
Problem
Description:
Problem with the Line Sensor (Tetris). The printer has detected a failure to
access Line Sensor EEPROM).
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Perform the Carriage Test to troubleshoot the problem further . Page 4-
27
..Check the Line Sensor connections to the Carriage PCA.
..Replace the Line Sensor . Page 8-116.
..If the System Error continues, replace the Carriage PCA . Page 8-126.
System Error: 56:YZ
Problem
Description:
Drive roller analog encoder sensor fail or calibration failed.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Perform the Media Path Test to troubleshoot the problem further . Page
4-18.
..Replace the Encoder Disk and Encoder Sensor . Page 8-159.
..If the System Error continues, replace the Main PCA . Page 8-151.
System Error: 58:YZ
Problem
Description:
The Color Sensor (Spectrophotometer-ESP-) of the printer is not working well.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..The Color Sensor (ESP) shutter has not opened.
..Perform the Color Sensor diagnostic test to troubleshoot the problem
further . Page 4-36.
..If the System Error continues, replace the Color Sensor (ESP) . Page 8-
110.

System Error: 61:YZ
Problem
Description:
The file format is incorrect and the Printer cannot process the job.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check the graphic language setting of the Printer (Refer to the User's
Guide).
..Resend the file to the printer.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.
..The Postscript fonts are missing. Upgrading the Firmware will re-install the
fonts.
..The file cannot be printed because it is password protected. Resend the
file without password protection.
System Error: 62:YZ
Problem
Description:
PC Interface
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Get the latest version of the firmware.
System Error: 63:YZ
Problem
Description:
Input/Output problem through the Network Card.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Network cable is correctly connected to the Formatter.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.
..If the System Error continues, replace the Formatter . Page 8-147.
..If the System Error continues, replace the Main PCA . Page 8-151.

System Error: 64:YZ
Problem
Description:
Input/Output problem through the USB Port.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the USB cable is correctly connected to the Printer.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.
..If the System Error continues, replace the Formatter . Page 8-147.
..If the System Error continues, replace the Main PCA . Page 8-151.
System Error: 65:YZ
Problem
Description:
Memory Driver Internal I/O error, I/O Socket Manager Internal I/O error.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the unknown port cable is correctly connected to the Printer.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.
..If the System Error continues, replace the Formatter . Page 8-147.
..If the System Error continues, replace the Main PCA . Page 8-151.
System Error: 66:YZ
Problem
Description:
Cannot print file on current paper type. The paper type has changed since
the file was sent, so the file cannot be printed on the paper type currently
loaded.
Corrective Action: Try the following:
..Resend the file to be printed on the current paper type.
..Change the paper type to the type that was loaded when the file was
originally sent.
System Error: 67:YZ
Problem
Description:
Input/Output problem through a Firewire Port.
Corrective Action: Try the following:
..Check that the firewire cable is correctly connected to the Printer.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.
..If the System Error continues, replace the Main PCA . Page 8-151.

System Error: 68:YZ
Problem
Description:
Loss of engine counters tracking.
Corrective Action: Try the following:
..Reboot the printer. The printer will continue to function correctly, but the
life counters will not continue counting until you restart the printer.
System Error: 71:YZ
Problem
Description:
Out of memory failure.
Corrective Action: Try the following:
..It is recommended that you remove any unnecessary files from the Hard
Disk Drive of the Formatter using the Web Server.
System Error: 71:19
Problem
Description:
Default Serial Number found in the main and backup NVM. It seems that
both the Print Mech PCA and Hard Disk Drive have been replaced together.
Corrective Action: Try the following:
..Perform the “Error 71:19 Recovery” Service Utility . Page 4-54.
System Error: 72:YZ
Problem
Description:
Generic Firmware error.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.
You MUST NEVER replace both the Formatter and the
PrintMech PCA at the same time. If both parts need to be
replaced, you MUST first replace one part and then power
ON the Printer until it completely initializes. Then you can
power OFF the Printer and replace the other part.

System Error: 73:YZ
Problem
Description:
Servo Error.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.
..Perform the Scan Axis Test to troubleshoot the problem further . Page 4-
7.
..If the System Error continues, perform the Media Drive diagnostic test to
troubleshoot the problem further . Page 4-18.
System Error: 74:YZ
Problem
Description:
Error uploading firmware update file.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Make sure the connection between the computer and the printer is
functioning properly.
..Try to update the Firmware again.
System Error: 74.1:YZ
Problem
Description:
Error uploading media profile update file.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Make sure the connection between the computer and the printer is
functioning properly.
..Try to upload the media profile update file again.
System Error: 75.1:YZ
Problem
Description:
Preventive Maintenance Kit #1 counter active.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord.
..Change the Belt Assembly, the Scan-Axis Motor, the Ink Supply Tubes,
Carriage Assembly (this does not include the Carriage PCA but it does
include the Trailing Cable).
You should use the appropriate Preventive Maintenance Kit #1. Refer to
Page 7-24.
..Once the parts have been changed, use the Service Menu to reset the
counters that affect PMKit #1.
..Change the Trailing Cable with Preventive Maintenance Kit # 4.
Once the parts have been changed, use the Service Menu to reset the
counters that affect PMKit #4.
System Error: 75.2:YZ
Problem
Description:
Preventive Maintenance Kit #2 counter active.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord.
..Change theLeft Spittoon foams and Belt Assembly, the Scan-Axis Motor,
the Ink Supply Tubes, and Carriage Assembly (this does not include the
Carriage PCA and Color Sensor (ESP), but it does include the Trailing
Cable).
You should use the Service parts:
PMKit #2 Q6675-60032 Z2100 (24 inch)
PMKit #2 Q6677-60015 Z2100 (44 inch)
PMKit #2 Q5669-60748 Z3100 (24 inch)
PMKit #2 Q6659-60189 Z3100 (44 inch)
..Once the parts have been changed, use the Service Menu to reset the
counters that affect PMKit #2. See 4. Reset Life Counters, Page 4-68.
System Error: 75.3:YZ
Problem
Description:
Preventive Maintenance Kit #3 counter active.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord.
..Change the Cutter Assembly using the appropriate Preventive
Maintenance Kit #3. Refer to Page 7-24. Note that the PMkit is the same
as the Cutter Assembly.
..Once the parts have been changed, use the Service Menu to reset the
counters that affect PMKit #3.
System Error: 76:YZ
Problem
Description:
Hard disk drive is full.
Corrective Action: Try the following:
..Remove any unnecessary files from the hard disk using the web server.

System Error: 77:YZ
Problem
Description:
Web access application. The web server is not functioning correctly.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.
System Error: 78:YZ
Problem
Description:
Borderless printing not possible. Setting ignored.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Send the plot again.
System Error: 78.1:YZ
Problem
Description:
Media settings area missing in media settings file.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.
..Update the OMES.
System Error: 79:YZ
Problem
Description:
Generic Firmware error.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.

System Error: 79.1:YZ
Problem
Description:
Recoverable firmware error that does not stop the printing process.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Check that the Printer has the latest Firmware version. If not, update the
Firmware to the latest version.
System Error: 81:YZ
Problem
Description:
Problem with paper advance.
Corrective Action: Try the following:
..Open the Window and check for any visible obstacles restricting the
movement of the Drive Roller. If there is a wrinkled mass of media inside
the paper path, lift the Pinchwheels (using the Media Lever) and clear the
obstruction.
..Perform the Media Drive diagnostic test to troubleshoot the problem
further . Page 4-18.
..Check the connections on the Main PCA; the Media Advance Drive is
connected to the connector labeled Paper Motor.
..If the System Error continues, replace the Media Advance Driver . Page
8-162.
System Error: 81.1:YZ
Problem
Description:
Problem finding the Drive Roller zero.
Corrective Action: Try the following:
..Open the Window and check for any visible obstacles restricting the
movement of the Drive Roller. If there is a wrinkled mass of media inside
the paper path, lift the Pinchwheels (using the Media Lever) and clear the
obstruction.
..Perform the Media Drive diagnostic test to troubleshoot the problem
further . Page 4-18.
..Check the connections on the Main PCA; the Media Advance Drive is
connected to the connector labeled Paper Motor.
..If the System Error continues, replace the Media Advance Driver . Page
8-162.

System Error: 84:YZ
Problem
Description:
Back tension servo shutdown (roll feeding).
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..If the problem persists, contact HP support.
System Error: 85:YZ
Problem
Description:
Problem finding the Drive Roller zero.
Corrective Action: Try the following:
..Perform the Media Drive diagnostic test to troubleshoot the problem
further . Page 4-18.
System Error: 86:YZ
Problem
Description:
Possible Paper Jam.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Open the Window and check for any visible obstacles restricting the
movement of the Drive Roller. If there is a wrinkled mass of media inside
the paper path, lift the Pinch wheels (using the Media Lever) and clear the
obstruction.
System Error: 87:YZ
Problem
Description:
Problem finding the Scan-axis encoder reading.
Corrective Action: Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Movement jam.
..Possible paper jam.
..Mechanical Initiator scan axis measure error.
..Check that the Scan-Axis Motor is correctly connected.
..Check that the Encoder Sensor is correctly connected.
..Remove the Encoder Strip and clean it.
..Perform the Scan Axis diagnostic test to troubleshoot the problem further
. Page 4-7

System Error: 93:YZ
Problem
Description:
Unable to pressurize the Ink Delivery System.
Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Perform the Ink Delivery System diagnostic test to further troubleshoot the
problem. . Page 4-39
..If the problem persists, contact HP support.
System Error: 94:YZ
Problem
Description:
Color calibration Error.
Try the following:
..Profiling failed due to a different error (not algorithm / data processing).
..Perform the Color Sensor (ESP) calibration. You must use glossy paper for
this calibration.
..If the System Error continues, replace the Carriage PCA . Page 8-126.
..If the System Error continues, replace the Formatter . Page 8-147.
System Error: 94.1:YZ
Problem
Description:
Profiling algorithm failed.
Try the following:
..Profiling failed due to a different error (not algorithm / data processing).
..Perform the Color Sensor (ESP) calibration. You must use glossy paper for
this calibration.
..If the System Error continues, replace the Carriage PCA . Page 8-126.
..If the System Error continues, replace the Formatter . Page 8-147.
System Error: 98:YZ
Problem
Description:
Automatic backup print mode enabled.
Try the following:
..Switch the Power OFF from the back of the Printer and disconnect the
Power cord. Reconnect the power cord and power On the Printer.
..Recover the printheads.

Computer Care is not responcible for typoghraphical errors, ownership of any propietary information or ideas remains the sole property of the original writter.
Computer Care has one intention here, to place information in the hands of the owners of these machines so they can make informed decisions about the service of thier plotter.
Good Luck!

HP LaserJet 4200/4250/4300/4350:

An Easier Way to Replace the Swing Plate Assembly (RM1-0043)

The swing plate assembly, a small obscure assembly in the right rear of the HP LaserJet 4200/4300 series of printers, has recently become very popular. Why? One reason is that, obscure as it is, it has a very important job: to couple the printer’s main drive assembly to the fuser. The other reason is that if the fuser isn’t fully seated (which is unfortunately a common problem in this series of printers), it will “bounce” when the swing plate attempts to drive it. This can damage both the gear in the fuser and the gear in the swing plate. The standard remedy for this condition is to replace both assemblies (fuser and swing plate).

The fuser is relatively expensive but very easy to replace. The swing plate is just the opposite: relatively inexpensive but very difficult to replace, at least by conventional methods. A recent article in another publication detailed a procedure for replacing the swing plate assembly that involves disassembling much of the printer, and that will take an hour or two, even for an experienced technician. But in most cases, this full procedure is unnecessary. There is a much easier way, provided certain conditions are met.

If you look at the swing plate assembly (see figure 1), you will notice that it has two gears. One of them (white and on the left in figure 1) couples to the main drive; the other one (black and on the right in figure 1) couples to the fuser. If both gears are damaged, you will have to replace the whole assembly, and this article won’t help you. But in the majority of cases, only the fuser drive gear is damaged, and it is surprisingly easy to replace just this gear.

Figure 1: The Swing Plate Assembly

At present, you cannot buy just the fuser drive gear (but see note at end of article), but you can buy the swing plate assembly (still a relatively inexpensive part), remove the fuser drive gear from it, and install just that gear, thereby saving yourself a great deal of labor.

We would recommend starting by disassembling the new swing plate assembly, to get a feel for how it comes apart, before you disassemble the one installed in the printer. Note that the fuser drive gear is secured by just one screw. Remove that screw from one side, then push the gear shaft out the other side, and now you should be able to remove the plastic spacer disk, and finally the gear. Figure 2 shows the swing plate assembly with these 4 parts removed. Note the orientation of the disk and gear as you remove them.

Figure 2: Disassembled Swing Plate Assembly

The next step is to remove that same gear from the swing plate assembly in the printer. You’ll still have to remove a few other things to get to it, but not nearly as much as in the full procedure described in the other article. Here’s our procedure:

If the printer has the optional duplexer installed, remove it by lifting it slightly and pulling it away from the printer.
Remove the rear output bin by opening it, squeezing the hinge pin in the right rear (on your left if you’re behind the printer) out of its mounting hole, and then rotating the bin until the hinge pin is free. Now you can just slide the other hinge pin out of its mounting hole and remove the bin.
Remove the fuser by squeezing the blue release tabs and pulling it straight back out of the printer.
Remove the formatter cover (in the right rear of the printer) by pulling/sliding it to the rear (see figure 3)

Figure 3: Removing the formatter cover

(slide in direction of arrow)

5. Remove the formatter board by removing 2 screws (see figure 4) and then sliding the whole metal cage out the rear of the printer (there will be some resistance as the self-mating connector unplugs).

Figure 4: Removing the formatter

(arrows show the 2 screws)

6. Now we can get to the swing plate assembly and the fuser drive gear. The single screw that secures the fuser drive gear is accessible through a conveniently-placed hole in the printer’s right side frame (see figure 5). The procedure from here is identical to what we did with the new swing plate assembly earlier, except that you’re working in closer quarters: remove the screw, then push the gear shaft out the other side (see figure 6), remove the plastic spacer, and finally remove the gear. Re-assemble in the reverse order (make sure to install the gear before the spacer), using the new gear in place of the damaged one. Make sure to observe correct orientation of the gear and spacer. It will take a bit of patience to manipulate the various pieces so that all the holes line up and you can insert the gear shaft (it may help to lay the printer on its side so that you're not fighting gravity), but this is still much less work than replacing the entire swing plate assembly.

Figure 5: Right Rear Frame of Printer

(red arrow points to the screw that secures the fuser drive gear)

Figure 6: Other side of Right Rear Frame,

showing fuser drive gear (red arrow)

and gear shaft (green arrow)

Remember that if both gears are damaged, you will have to replace the whole swing plate assembly. Fortunately, this is rare. It’s easy to visually inspect the fuser drive gear by just removing the fuser, but how can you check the other one? The best way is by performing the procedure described in this article! Once you have removed the fuser drive gear, you can visually inspect the other one (a flashlight may be helpful). If it’s in good shape, you can just carry on with the rest of the procedure we have described. If this other gear is damaged, you will have to replace the whole swing plate assembly, but you haven’t lost any significant time, because that procedure still requires removal of the fuser, formatter, etc.

However, we are confident that in the vast majority of cases, the procedure we have described will get you going – in a fraction of the time that the other procedure would take.

Note: Since this article was written, more options have become available for obtaining the swing plate and fuser parts. You can still get the whole fuser and/or the whole swing plate assembly, but the following parts are also now available:

RM1-0043-GRB Fuser drive gear and spacer (unlubed) from swing plate assembly

RU5-0016-A 40T gear for 4200 & 4300 fusers

RC1-3324-A 40T gear for 4250/4350 fuser

5851-2766-N OEM kit, includes swing plate assembly and 4250/4350 fuser gear

(this gear also works on 4200 & 4300 fusers)

Article by: Dennis Kosterman

In HP laser printers, the network configuration is stored on the network card (also known as the JetDirect card or EIO card), not on the Formatter board. Therefore, you need to reconfigure whenever a network card is installed or replaced. There are numerous ways to configure the network. Here’s what we recommend:

First, before attaching the printer to the network, install the card into the printer, power up, and then go into the printer’s “EIO x” menu (“x” represents the slot number that the EIO card is in). Menu structures are different in different printer models, so printing out the menu map may help you find this menu. Setup details also differ from one model to another, but in general, assuming that you have an Ethernet network (10Base-T or 100Base-TX) using a TCP/IP protocol (by far the most common), the basic steps are similar:

Tell the printer that you want to configure the network (“Configure Network = YES*” or something similar).

Select “TCP/IP” as the network type (you may also have to set “Configure TCP/IP = YES*”).

Select “manual” as the configuration method (other choices are “BOOTP” or “DHCP” – in some printers, you may have to set “BOOTP = NO*” and/or “DHCP = NO*”).

Enter 3 groups of numbers: IP Address, Subnet Mask, and Default Gateway. Each of these is configured as 4 bytes. For example, if the IP address is 10.1.1.24, “Byte 1 = 10”, “Byte 2 = 1”, “Byte 3 = 1”, and “Byte 4 = 24”, and these are the numbers you would enter. Ideally, you will have a record of the previous configuration, so that you can put in the same numbers. If not (or if this is a new installation), you can always assign new numbers. However, you can’t just put in any old numbers (in particular, if there are multiple devices on the network, you can’t use the same numbers as any of the other devices!), so it is best to consult the customer’s IT personnel at this point.

Now power down, connect to the network, power back up, and print a configuration page to verify the network configuration. In most cases, you’re done at this point, but some operating systems will have trouble finding a printer even after the address has been defined. So we recommend running HP’s “Install Network Printer Wizard”, which can be downloaded for free from HP’s website (www.hp.com) – just type “Install Network Printer Wizard” into the search window and you’ll find it. This program will step you through the installation of a new printer, and will also help the network find an existing printer. (NOTE: You can also do all of this with HP’s “Web Jetadmin” software (also available as a free download), but this is much more complicated, so stick with the software described above unless you are an IT professional.)

Among the most common problems that you'll see in the HP LaserJet 9000 is the false 13.20 error. It will come up during or immediately after the power-up sequence, before you even try to print anything, and you won't find paper anywhere in the paper path. As in any printer, this can be caused by a stuck sensor flag, but in the 9000, there are some other potential causes: a defective fuser or DC Controller board, or bad high voltage connections.

Because this error often comes up after installing a fuser, it's easy to assume that the fuser is the cause. But it turns out that the 13.20 error is much more often caused by the DC Controller, even when you get the error with one fuser but not with another. Here's why: the 9000 detects "wrapping jams" (paper wrapped around a fuser roller) by making an electrical connection to the conductive coatings on the fuser rollers. Early versions of the DC Controller board had a very narrow tolerance for this measurement, and natural variances in fuser conductivity put many fusers outside the acceptable range - even though there was nothing wrong with these fusers.

HP corrected this problem on later versions of the DC Controller, but many printers still have the older versions, and on these printers, it's hard to find a fuser that the printer will accept. To check the DC Controller version, print a configuration page and look at the "printer number" (a two-digit code ranging from 15 to 1C). If the second character is a number (5-9), the printer has an older DC Controller, which will be more likely to cause false 13.20 errors. On newer versions, the second character will be a letter (A, B, or C). All DC Controllers sold by Computer Care are the newer versions.

The bottom line is that by making sure that the DC Controllers are up-to-date in all of the HP LaserJet 9000 printers that you service, you can greatly reduce 13.20 errors and fuser warranties.