Lexmark CS748de User Manual

2-98 Service Manual
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900.05—Transfer module error service check
902.59—Engine software error, NVRAM MGR problem service check
29
Upgrade the firmware. Contact your next level of
support for the correct firmware level to use.
Restart the printer to operating mode.
Does the 900.xx error reoccur?
Go to step 30. Go to step 26.
30
Replace the faulty ISP option. Restart the device.
Does the 900.xx error reoccur?
Go to step 31. Go to step 26.
31
Contact your next level of support. You will need the following information for them:
• Exact 900.xx error digits and complete error message
• Printed menu settings page
• Printed network settings page
• Device error log
• A sample print file if error appears to be isolated to a single file
• File/Application used if error is related to specific print file
• Device Operating System
• Driver used (PCL/PS)
• Frequency of the occurrence of the error
Step Questions / actions Yes No
1 1. Turn the printer off.
2. Remove the rear frame cover. See “Rear
frame cover removal” on page 4-47.
3. Check the transport cable in connector
JTPS1 for proper connection to the
system board.
4. Open the front access door and check the
transport cable for pinch points and any
other damage to the cable or connector.
Is the cable damaged?
Replace the transport
cable. See “Transport
cable removal” on
page 4-181.
Go to step 2.
2
Replace the transfer module.
Does the error clear?
Problem resolved. Replace the system board.
See “System board
removal” on page 4-163.
Step Questions / actions Yes No
1 1. Turn off the printer.
2. Remove the rear frame cover. See “Rear
frame cover removal” on page 4-47.
3. Check JPH1 and JTPS1 for proper
connection and damage.
4. Check the transport cable on the transfer
belt module side for any damage.
Is either of the cables damaged?
If the JTPS1 cable is
damaged, replace the
JTPS1 cable.
If the JPH1 cable is
damaged, replace the
printhead assembly. See
“Printhead removal,
installation, and
adjustment” on
page 4-153
Go to step 2.
Step Action and questions Yes No

Lexmark CS748de Specifications

General

Brand	Lexmark
Model	CS748de
Category	Printer
Language	English