TAG 055: Erase Lamp Malfunction

Error Code:

055

Possible Defects: Erase lamp assembly

Connectors or wiring

PCL board

1 Turn the printer off and unplug the power cord.

Verify that J/P26, J/P40 are connected properly.

Power-on-reset the printer.

Is error code 055 displayed?

No: Continue.

Yes: Go to #3 in this TAG.

2 Run diagnostic test 013.

Is the value displayed less than 220?

No: A loose connector was at fault. Turn to TAG 002: Check & Problem Resolution.

Yes: Continue.

3 Run diagnostic test 009.

Watch all the LEDs on the erase lamp.

Do all the LEDs on the erase lamp come on, even momentarily?

No: Continue.

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

4 Run diagnostic test 013.

Check J/P26-2 for +12 Vdc immediately. After the start of the test, the voltage may drop to 0 Vdc.

Did you measure +12 Vdc?

No: Continue.

Yes: Go to #6 in this TAG.

5 Turn off the printer and unplug the power cord.

Disconnect J/P26 and J/P40.

Check P26-2 to P40-3 for continuity.

Is there continuity?

No: Repair or replace the connectors or wiring from P26-2 to P40-3, then turn to TAG 002: Check & Problem Resolution.

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

Troubleshooting Analysis Guide (TAGs)

3-65