Inverter Unit Interface Failure - Xerox Paser 7400 Service Manual

Inverter Unit Interface Failure

A communication error has occurred in the Finisher Inverter.
Applicable Status Code:
Code U51:
Inverter Unit Interface Failure.
Initial Actions:
Reseat the Finisher connections.
Cycle the printer's power.
If the problem persists follow the procedure below.
Troubleshooting Reference Table
Applicable Parts
Inverter Control Board
Engine Control Board
Troubleshooting Procedure Table
Step Actions and Questions
1 Check the following for evidence of fault or
damage:
Inverter Interface Cable
Inverter connections
Is there any damage?
2 Check the Inverter connection.
Is the Inverter interface cable securely
connected at both ends?
3 Check all pins on the OPTIF Harness for
continuity.
Disconnect OPTIF from the Engine Control
Board and Option connector.
Is the harness conductive?
General Troubleshooting
Wiring and Plug/Jack References
Print Engine Map 3 (see Book 1)
Print Engine Motor Driver Board (6/6) (see Book 1)
Options Map 3 Inverter Controller Board
Yes
Replace any
damaged parts.
Go to Step 3.
Replace the Inverter
Control Board. If the
error persists,
replace the Engine
Control Board (see
Book 1).
No
Go to Step 2.
Connect the
Inverter to the
Finisher.
Replace the
OPTIF Harness.
3-47