Upper Fuser Thermistor Open Error - Lexmark C910 Service Manual

5055-01X

923 - Upper Fuser Thermistor Open Error

Questions /
Step
Actions
1 Is connector CN44
on the printer
controller board
connected
properly?
2 Is error 923
displayed?
3 Power the printer
off and short pins
1 and 4 of CN44
and power on. Is
error 923
displayed?
924 - L60ower Fuser Thermistor Open Error
Questions /
Step
Actions
1 Is connector CN44
on the printer
controller board
connected
properly?
2 Is error 924
displayed?
2-8
Service Manual
Yes
Disconnect CN44
and turn the printer
on.
Go to step 2.
Power off and
reconnect CN44.
Go to step 3.
Replace the fuser.
Yes
Disconnect CN44
and turn the printer
on.
Go to step 2.
Turn the printer off
and reconnect
CN44.
Go to step 3.
No
Plug the connector in
securely.
Replace the printer
controller board.
Replace the printer
controller board.
No
Plug the connector in
securely.
Replace the printer
controller board.