3-56 Troubleshooting Analysis Guide (TAGs)
11
Remove the photoconductor unit.
• Inspect the photoconductor belt for damage.
• Check the timing hole for contamination or blockage.
Are the photoconductor belt and the timing hole both in good working order?
No: Replace the photoconductor unit, then turn to TAG 002: Check & Problem Resolution.
Yes: Continue.
12
Turn the printer off.
• Disconnect J/P40.
• Turn the printer on.
• Check TP3-20 for +12 Vdc.
Is the voltage +12 Vdc?
No: Replace the PCL board, then turn to TAG 002: Check & Problem Resolution.
Yes: Continue.
13
Check TP3-21 for between +2 to +6 Vdc.
Is the voltage between +2 to +6 Vdc?
No: Replace the PCL board, then turn to TAG 002: Check & Problem Resolution.
Yes: Continue.
14
Turn the printer off and unplug the power cord.
• Remove the photoconductor unit.
• Disconnect J/P63, observing carefully the plug’s orientation before you remove it.
• Check the following for continuity:
• P40-19 to J/P64-1 to J/P252, which is the center connector contact on the photoconductor
guide rail;
• P40-21 to J/P64-2 to J/P251, which is the top connector contact on the photoconductor
guide rail;
• P40-18 to J/P 64-3 to P63-1;
• P40-20 to J/P64-4 to P63-2.
Is there continuity on all?
No: Repair or replace the connectors or wiring that did not have continuity, then turn to TAG
002: Check & Problem Resolution.
Yes: Continue.
15
Repair or replace the photoconductor seam sensor.
• Reconnect J/P40 and J/P63.
• Reinstall the photoconductor.
• Power-on-reset the printer.
Has the problem been resolved?
No: Continue.
Yes: Go to TAG 002: Check & Problem Resolution.
