Lexmark C950 - Page 287

Diagnostic information 2-239
5058-030
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7
Replace the four developer housings and four
developer carriers. Go to “Developer housing (C)
removal” on page 4-45, “Developer housing (K)
removal” on page 4-51, “Developer housing (M)
removal” on page 4-56, “Developer housing (Y)
removal” on page 4-62,and “Developer carrier
removal and replacement” on page 4-42.
Does the problem remain?
Go to step 8. Problem
resolved
8
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 4-175.
Perform a print test. Go to “PRINT TESTS” on
page 3-22.
Does the problem remain?
Go to step 9. Problem
resolved
9
Check the LED printhead.
Replace the LED printhead.
Go to “LED printhead removal” on page 4-96.
Does the problem remain?
Go to step 10. Problem
resolved
10
Check the upper printer engine PCBA for proper
connectivity. Disconnect and reconnect all appropriate
cables.
Replace the upper printer engine PCBA.
Go to “Upper printer engine PCBA removal” on
page 4-181.
Perform a print test. Go to “PRINT TESTS” on
page 3-22.
Does the problem remain?
Replace the RIP
PCBA.
Go to “RIP
PCBA removal”
on page 4-144.
Problem
resolved
Step Check Yes No