8 Check P41-21 to P5-7 for continuity.

Is there continuity?

No: Repair or replace the connectors or wiring from P41- 21 to P83-2 or J83-2 to P5-7, then turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

9 Reinstall the fuser unit.

•Check P41-21 to P41-22 for resistance.

Is the resistance between I KΩ and 400 KΩ?

No: The new fuser unit seems to be defective. Replace it with a new fuser unit, then turn to TAG 002: Check & Problem Resolution.

Yes: Replace the PCL board, then turn to TAG 002: Check & Problem Resolution.

10 Power-on-reset the printer.

•Check J/P10-2 for +24 Vdc during the 15 seconds following power-on-reset.

Is the voltage +24 Vdc?

No: Go to #16 in this TAG.

Yes: Continue.

11 Turn the printer off.

•Continue to check J/P10-2 for +24 Vdc.

•Power-on-reset the printer.

Does the voltage drop from +24 Vdc to 0 Vdc during the 15 seconds following the output tray jogging test?

No: Go to #24 in this TAG.

Yes: Continue.

12 Power-on-reset the printer. Use extreme caution:

•Check J/P44-1 to J/P44-2 for at least 100 Vac during the 15 seconds following the output tray jogging test.

Is the voltage at least 100 Vac?

No: Go to #15 in this TAG.

Yes: Continue.

Troubleshooting Analysis Guide (TAGs)

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