19 Turn the printer off.

•Reconnect J/P333.

•Disconnect J/P73, the DC cable for the attachment option.

•Turn the printer on.

•Check J/P8-10 for +5 Vdc.

Is the voltage +5 Vdc?

No: Replace the signal interface board, then turn to TAG 002: Check & Problem Resolution.

Yes: Replace the attachment option, then turn to TAG 002: Check & Problem Resolution.

20 Turn the printer off.

•Reconnect J/P333.

•Disconnect J/P323.

•Turn the printer on.

•Check J/P8-10 for +5 Vdc.

Is the voltage +5 Vdc?

No: Replace wire harness W127 or W128, then turn to TAG 002: Check & Problem Resolution .

Yes: Continue.

21 Turn the printer off.

•Disconnect J/P310, found inside the duplex tray.

•Check P310-3 for continuity to ground.

Is there continuity to ground?

No: Replace the duplex control board #2, then turn to TAG 002: Check & Problem Resolution .

Yes: Repair or replace the connectors or wiring from J323-3 to J/P305-3 to P310-3, then turn to TAG 002: Check & Problem Resolution.

22 Turn the printer on. Use extreme caution:

•Check from J/P6-1 to J/P6-2 (neutral) for 100 Vac or more.

Is the voltage at least 100 Vac?

No: Continue.

Yes: Replace the DC power supply unit, then turn to TAG 002: Check & Problem Resolution.

23 Use extreme caution: Check from J/P4-7 to J/P4-8 (neutral) for 100 Vac or more.

Is the voltage at least 100 Vac?

No: Replace the AC power supply unit.

Yes: Repair or replace the connectors or wiring from: P4-7 to P6-1 or

P4-8 to P6-2;

then turn to TAG 002: Check & Problem Resolution.

Troubleshooting Analysis Guide (TAGs)

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