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.

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Troubleshooting Analysis Guide (TAGs)