Lexmark W840 - Duplex Controller Card Assembly Communication Failure

Diagnostic information 2-89
4024-XXX
980.04 Duplex controller card assembly communication failure
10 Check the duplex drive motor for proper operation.
1. Enter Diagnostics mode.
2. Select MOTOR TESTS.
3. Select Duplex drv mtr.
Open the duplex left cover assembly.
Does the above motor rotate properly?
Go to step 12. Go to step 11.
11 Check the duplex drive motor assembly for proper
connection.
Is the above motor connected properly?
Replace the duplex
drive motor.
Go to “Duplex drive
motor assembly
removal” on
page 4-178.
Replace the
connection.
12 Check the duplex controller card assembly and printer
engine card assembly for proper connection.
Are the connections on the duplex controller card
assembly and the connector P417 on the printer engine
card assembly connected?
Go to step 13. Replace the
connection.
13 Perform a 2 sided print test.
Does the error still occur?
Replace the duplex
controller card
assembly.
Go to “Duplex
controller card
assembly removal”
on page 4-181.
Go to step 14.
Problem solved.
14 Perform a 2 sided print test.
Does the error still occur?
Replace the printer
engine card
assembly.
Refer to the Printer
Service Manual.
Problem solved.
Step Check Yes No
1 Check the duplex unit for proper installation.
Remove duplex unit assembly, and reinstall it.
Perform a two sided print test.
Does the error still occur?
Go to step 2. Problem solved.
2 Check the duplex controller card assembly and printer
engine card assembly for proper connection.
Are the connections on the duplex controller card
assembly and the connector P417 on the printer engine
card assembly connected?
Go to step 3. Replace the
connection.
Step Check Yes No