Diagnostic information 2-271
7558-xxx
3
Check the PC units for proper connection.
Does the problem remain?
Go to step 4 Problem resolved
4
Check the 2nd transfer roller for contamination and wear.
Is the 2nd transfer roller free of excess wear and
contamination?
Go to step 5. Replace the 2nd
transfer roller.
Go to “2nd
transfer roller
removal” on
page 4-28.
5
Replace the four developer housings and four developer
carriers. Go to “Developer housing (C) removal” on
page 4-49, “Developer housing (K) removal” on
page 4-55, “Developer housing (M) removal” on
page 4-61, “Developer housing (Y) removal” on
page 4-67,and “Developer carrier removal and
replacement” on page 4-46.
Does the problem remain?
Go to step 6. Problem resolved
6
Check the developer HVPS PCBA for proper connectivity.
Disconnect and reconnect all appropriate cables.
Replace the developer HVPS PCBA.
Go to “Developer HVPS PCBA removal” on page 4-75,.
Perform a print test.
Does the problem remain?
Go to step 7. Problem resolved
7
Check the transfer roll HVPS PCBA for proper
connectivity. Disconnect and reconnect all appropriate
cables.
Replace the transfer roll HVPS PCBA.
Go to “Transfer roll HVPS PCBA removal” on
page 4-181,.
Perform a print test.
Does the problem remain?
Go to step 8. Problem resolved
8
Check the LED printhead assembly.
Replace the LED printhead assembly.
Go to “LED printhead removal” on page 4-102.
Does the problem remain?
Go to step 9. Problem resolved
9
Check the upper printer engine RIP card PCBA for proper
connectivity. Disconnect and reconnect all appropriate
cables.
Perform a print test.
Does the problem remain?
Replace the RIP
card PCBA.
Go to “RIP PCBA
removal” on
page 4-150.
Problem resolved
Step Check Yes No