10 Turn the printer off and unplug the power cord.
•Replace the transfer charger unit.
•
•Run test prints.
Has the problem been resolved?
No: Replace the upper paper guide assembly. If this resolves the problem, turn to TAG 002: Check & Problem Resolution. If this does not resolve the problem, replace the high voltage unit, then turn to TAG 002: Check & Problem Resolution.
Yes: The transfer charger unit was at fault. Turn to TAG 002: Check & Problem Resolution.
11 Open the front cover and install an interlock
•Remove the photoconductor unit.
•Remove the developer unit.
•Run diagnostic test 010.
•Watch the toner motor coupling in the developer unit cavity.
Does the coupling turn?
No: Go to #20 in this TAG.
Yes: Continue.
12 Inspect the toner drive coupling on the developer unit for damage.
Is the coupling damaged?
No: Continue.
Yes: Replace the developer unit, then turn to TAG 002: Check & Problem Resolution.
13 Rotate both the drive couplings on the developer unit clockwise.
Do both drive couplings rotate freely?
No: Replace the developer unit, then turn to TAG 002: Check & Problem Resolution.
Yes: Continue.
14 Reinstall the photoconductor unit.
•Run diagnostic test 009.
•Watch the developer drive coupling in the developer cavity.
Does the coupling turn?
No: Repair or replace the main drive gear assembly, then turn to TAG 002: Check & Problem Resolution.
Yes: Continue.
Troubleshooting Analysis Guide (TAGs) |