Center Thermistor Failure; Rear Thermistor Failure - Lexmark W850n Service Manual

4024-110

922.00 Center thermistor failure

Step
1 Check the fuser unit assembly for installation.
Open the printer left door assembly, and check it.
Is the fuser unit assembly installed securely?
2 Check the fuser unit assembly connection.
Is the fuser unit assembly properly connected?
3 Perform a print test.
Does the error continue?

923.00 Rear thermistor failure

Step
1 Check the fuser unit assembly for installation.
Open the printer left door assembly, and check it.
Is the fuser unit assembly installed securely?
2 Check the fuser unit assembly connection.
Is the fuser unit assembly properly connected?
3 Perform a print test.
Does the error continue?
2-52
Printer Service Manual
Check
Check
Yes
Go to step 2. Install the fuser
unit assembly
securely.
Replace the fuser Replace the
unit assembly. connection.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
Yes
Go to step 2. Install the fuser
unit assembly
securely.
Replace the fuser Replace the
unit assembly. connection.
Replace the Problem solved.
printer engine card
assembly.
Go to "Printer
engine card
assembly
removal" on
page 4-119.
No
No