6 Turn the printer off.

•Remove the photoconductor unit.

•Inspect it for damaged drive mechanism or belt slippage.

Is it in good working order?

No: Replace the photoconductor unit, then turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

7 Reinstall the photoconductor unit.

•Remove the interlock by-pass tool and close the top cover.

•Open the back cover and install an interlock by-pass tool.

•Remove the main drive motor assembly cover.

•Turn the printer on.

•Run diagnostic test 009.

•Watch the main motor.

Does the main motor gear turn while running diagnostic test 009?

No: Continue.

Yes: Replace the main motor gear, main motor gear key, or both, or replace the main drive gear assembly, as needed. Then turn to TAG 002: Check & Problem Resolution.

8 Run diagnostic test 009. Use extreme caution:

•Check J/P20-2 to J/P20-3 for 100 Vac while the test is running.

Is the voltage 100 vac?

No: Continue.

Yes: Replace the main drive motor assembly, then turn to TAG 002: Check & Problem Resolution .

9 Run diagnostic test 009. Use extreme caution:

•Check J/P14-2 to J/P14-3 for 100 Vac while the test is running.

Is the voltage 100 Vac?

No: Continue.

Yes: Repair or replace the connectors or wiring from P14-2 to P20-3 or P14-3 to P20-2; then turn to TAG 002: Check & Problem Resolution.

10 Turn the printer off and unplug the power cord.

•Disconnect J/P40 and J/P12.

•Check P40-33 to P12-7 for continuity.

Is there continuity?

No: Repair or replace the connectors or wiring from P40-33 to P12-7.

Yes: Replace the power control board; if this does not correct the problem, replace the PCL board. Then turn to TAG 002: Check & Problem Resolution.

Troubleshooting Analysis Guide (TAGs)

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