TAG 600: AC Power Malfunction

Error Code:

600

Symptoms: Operator panel blank with fans not running

Printer Open indicator on

Circuit breaker keeps tripping

Possible Defects: Upper fuse in the AC power supply

AC power supply unit

DC power supply unit

Connectors or wiring

Power control #2 board

Power control #3 board

Fuser unit

Back cover interlock switch

Front cover interlock switch

Top cover interlock switch

Toner supply motor

Cooling fans

Jogging motor

Main drive motor

Vacuum transport unit

Operator panel assembly

1 Turn the printer off and unplug the power cord.

•Verify that J/P44, J/P84, J/P4, J/P9, J/P12, J/P40, J/P6, and the AC power cord are connected properly.

•Power-on-reset the printer.

Has the problem been resolved?

No: Continue.

Yes: Loose connectors were at fault. Turn to TAG 002: Check & Problem Resolution.

2 Turn the printer off.

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

•Turn the printer on. Use extreme caution:

•Check from J/P9-2 to J/P9-1 for +100 Vac.

Is the voltage +100 Vac?

No: Go to #4 in this TAG.

Yes: Continue.

3 Turn the printer off and unplug the power cord.

•Disconnect J/P40 and J/P12.

•Check P40-29 to P12-3 and P40-30 to P12-4 for continuity.

Is there continuity on each?

No: Repair or replace the connectors or wiring as needed.

Yes: Replace the power control #2 board. If this resolves the problem, turn to TAG 002: Check

&Problem Resolution. If this does not resolve the problem, replace the PCL board, then turn to TAG 002: Check & Problem Resolution.

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Troubleshooting Analysis Guide (TAGs)