TAG 811: Background/Residual Images/Dark Prints
Error Code: | 811 |
Possible Causes: Contaminated toner/carrier mix
Possible Defects: Photoconductor unit
Main charger
Cleaner unit
Developer unit
Erase lamp assembly
High voltage unit
Power control #2 board
Connectors or wiring
PCL board
Main charger terminal assembly
Cleaner terminal assembly
1 Turn the printer off and unplug the power cord.
•Verify J/P23, J/P24, J/P85, and the main charger high voltage lead are connected properly.
•Perform the
•Clean the contacts on the main charger.
•Clean the printhead lens and toner patch sensor located on the developer unit.
•Turn the printer on.
•Run test prints.
Has the problem been resolved?
No: Continue.
Yes: Contamination or a loose connector was at fault. Turn to TAG 002: Check & Problem Resolution.
2 Check the voltages, as outlined in Chapter 9, “General Printer Maintenance” .
Are the voltages correct?
No: Replace the high voltage power supply unit, then turn to TAG 002: Check & Problem Resolution.
Yes: Continue.
3 Have the photoconductor unit, main charger, cleaner unit and developer unit with new toner cartridge been replaced recently?
No: Continue.
Yes: Go to #5 in this TAG.
4 Replace the photoconductor unit and main charger.
•Run 200+ test prints, then evaluate the test print background.
Has the problem been resolved?
No: Reinstall the original photoconductor unit and main charger and continue.
Yes: Turn to TAG 002: Check & Problem Resolution.
Troubleshooting Analysis Guide (TAGs) |