Lexmark X95 series - Fuser Thermostat Failure; Fuser Driver Interface Failure; Fuser Driver to Upper Engine PCBA Interface Failure

2-60 Service Manual
7558-xxx
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121.13 Fuser thermostat failure
126.01 Fuser driver interface failure
126.02 Fuser driver to upper engine PCBA interface failure
Step Action and questions Yes No
1 Check the fuser assembly.
Is the above component
properly connected?
Go to step 2. Remove foreign particles, and
replace the connections.
2
Replace the fuser assembly. Go
to “Fuser assembly removal”
on page 4-84.
Does the error remain?
Go to step 3. Problem resolved
3
POR the machine.
Does the error continue?
Replace the upper printer engine
PCBA.
Go to “Upper printer engine
PCBA removal” on page 4-187.
Problem resolved
Step Action and questions Yes No
1 Check the fuser driver PCBA.
Is the above component
properly connected?
Go to step 2. Replace the connections.
2
Replace the fuser driver PCBA.
Go to “Fuser driver PCBA
removal” on page 4-90.
Does the error remain?
Go to step 3. Problem resolved
3
POR the machine.
Does the error continue?
Replace the upper printer engine
PCBA.
Go to “Upper printer engine
PCBA removal” on page 4-187.
Problem resolved
Step Action and questions Yes No
1 Check the fuser driver PCBA.
Is the above component
properly connected?
Go to step 2. Replace the connections.
2
POR the machine.
Does the error continue?
Go to step 3. Problem resolved