Lexmark W820 Service Manual page 119

Error Code 922
There is a problem with the Fuser.
Logic Control on the MCU PWB sensed that the Fuser Thermostat opened.
Step Actions and Questions
1 FUSER REPLACEMENT
Replace the "Fuser Assembly" on page 4-65
Does the error code appear?
2 MCU PWB REPLACEMENT
Replace the "Engine Board (MCU PWB)" on page 4-92
Does the error code appear?
3 The following printer FRUs and areas are associated with this
specific problem. One or more of these FRUs or areas may
have failed partially or completely. If you cannot isolate this
problem using the steps in this Service Check, replace each
FRU or troubleshoot each area listed below, one at a time, until
you isolate and solve the problem.
•
Wiring and connectors linking the FRUs
•
I/O PWB - Go to
Error Code 923
There is a problem with the Fuser.
Logic Control on the MCU PWB sensed that the Fuser Thermostat opened.
Step Actions and Questions
1 FUSER REPLACEMENT
Replace the "Fuser Assembly" on page 4-65
Does the error code appear?
2 MCU PWB REPLACEMENT
Replace the "Engine Board (MCU PWB)" on page 4-92
Does the error code appear?
3 The following printer FRUs and areas are associated with this
specific problem. One or more of these FRUs or areas may
have failed partially or completely. If you cannot isolate this
problem using the steps in this Service Check, replace each
FRU or troubleshoot each area listed below, one at a time, until
you isolate and solve the problem.
•
Wiring and connectors linking the FRUs
•
I\O PWB
4025-XXX
"I/O PWB" on page 4-89.
Yes No
Go to step 2 Problem
solved
Go to step 3 Problem
solved
Yes No
Go to step 2 Problem
solved
Go to step 3 Problem
solved
Diagnostic Information
2-23