Troubleshooting
Device Error Codes
Code
21
22
23
24
25
41
42
50
51
60
61
80
81
82
16-8
Description
The new drum unit does not function
properly.
Fuser error 1 (Case1)
Fuser error 1 (Case2)
Fuser error 1 (Case3)
Fuser error 1 (Case4)
The Polygon motor in the LSU does
not rotate.
The LSU's laser beam is not
functioning properly.
The printer drive motor does not rotate Printer, Call for Service.
The Fan connector is not attached to
the main pwb.
2nd paper tray does not respond.
3rd paper tray does not respond.
Scanner image processing IC does not
work properly.
Clock IC does not work properly.
The Modem for the line 1 does not
work properly.
Replace Parts
Drum unit
Fuser unit, Call for Service.
Fuser unit, Call for Service.
Fuser unit, Call for Service.
Fuser unit, Call for Service.
LSU, Call for Service.
LSU, Call for Service.
Fan, Call for Service.
2nd paper tray, Call for Service.
3rd paper tray, Call for Service.
Main pwb, Call for Service.
Main pwb, Call for Service.
Main pwb, Call for Service.
WorkCentre Pro 665/685/765/785