Fuser Driver Pcba Cooling Fan Failure; Upper Exhaust Cooling Fan Failure; Lower Engine Pcba Detect Failure - Lexmark X95x Series Service Manual

175.07 Fuser driver PCBA cooling fan failure

Step Action and questions
Check the fuser driver PCBA
1
cooling fan.
Is the above component
properly connected?
Replace the fuser driver PCBA
2
cooling fan.
Does the error continue?
POR the machine.
3
Does the error continue?

175.08 Upper exhaust cooling fan failure

Step Action and questions
Check the upper exhaust fan.
1
Is the above component
properly connected?
Replace the upper exhaust fan.
2
Go to
"Upper exhaust cooling
fan removal" on page
Does the error continue?
POR the machine.
3
Does the error continue?

191.01 Lower engine PCBA detect failure

Step Action and questions
POR the machine.
1
Does the error remain?
Check the lower engine PCBA.
2
Is the above component
properly connected?
POR the machine.
3
Does the error continue?
Yes
Go to step 2.
Go to step 3.
Replace the lower engine PCBA.
Go to
"Lower engine PCBA
removal" on page
Yes
Go to step 2.
Go to step 3.
4-187.
Replace the upper printer engine
PCBA.
Go to
"Upper printer engine
PCBA removal" on page
Yes
Go to step 2.
Replace the lower engine PCBA.
Go to
"Lower engine PCBA
removal" on page
Go to step 2.
Replace the upper printer engine
PCBA.
Go to
"Upper printer engine
PCBA removal" on page
No
Replace the connections.
Problem resolved
Problem resolved
4-106.
No
Replace the connections.
Problem resolved
Problem resolved
4-189.
No
Problem resolved
Replace the connections.
4-106.
Problem resolved
4-189.
Diagnostic information
7558-xxx
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