HP C30 manual TAG 070 Fuser Unit Malfunction, Is error code 070 or 073 displayed?

TAG 070: Fuser Unit Malfunction

Error Code: 070, 073

Symptoms: No AC power at the fuser

Possible Defects: Fuser unit

Power control #2 board

AC power supply unit

DC power supply unit

Connectors or wiring

PCL board

Note

A lack of continuity can result in fuser unit damage. If there is no continuity, replace the fuser unit when replacing the connectors and/or wiring

1 Turn the printer off and unplug the power cord.

•Verify that J/P44, J/P4, J/P10, J/P11, J/P12, J/P70, J/P40, J/P41, J/P8, and J/P5 (bottom of fuser unit) are connected properly.

•Verify that the fuser unit is installed properly.

•Read the following steps before taking further action.

•Power-on-reset the printer.

•Watch through the output tray opening to see if the fuser lamp comes on.

Note

If the fuser lamp comes on immediately after power on, turn off the printer and replace the AC power supply.

Is error code 070 or 073 displayed?

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

Yes: Continue.

2 Has the fuser unit been replaced recently?

No: Continue.

Yes: Go to #4 in this TAG.

3 Replace the fuser unit.

•Power-on-reset the printer.

•Watch through the output tray opening to see if the fuser lamp comes on.

•If the fuser lamp comes on immediately after power on, turn off the printer and replace the AC power supply.

Has the problem been resolved?

No: Reinstall the original fuser unit and continue.

Yes: Turn to TAG 002: Check & Problem Resolution.

Troubleshooting Analysis Guide (TAGs) 3-67