Diagnostic Information 2-7
5055-01X
919 - Power Supply Fan Error
920 - Fuser Error - Fuser Heater Trouble
Step Questions / Actions Yes No
1 Is +24 V present between
pins 1 and 3 of connector
CN6 on the printer
controller board?
Replace the power
supply fan.
Replace the
printer
controller
board.
92x Service
Fuser Error
Step
Questions /
Actions
Yes No
1 Replace the fuser.
Did this fix the
problem?
Problem solved. Return the fuser,
replace the power
supply 2 and go to
step 2.
2 Did replacing
power supply 2 fix
the problem?
Problem solved. Return power supply
2 and replace the
printer controller
board.
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