Xerox Phaser 7100

Error Troubleshooting
Xerox Internal Use Only Phaser 7100 Service Manual 2-271
Cover Open: Front Cover or Top Cover Open
The Front Cover Interlock was opened.
Applicable Fault Code
• 077-300: Front Cover Interlock Open
Initial Actions
• Power cycle the printer.
• If the problem persists, perform the following procedure.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
• MCU PWB, PL 12.1.15
• Interlock Cap Switch Kit, PL 12.2.4
Troubleshooting Procedure
Step Actions and Questions Yes No
1. Check the Front Cover Switch operation.
Perform DC330 Component Control on
page 2-26 [041-303] to check the operation of
the Front Cover Switch.
Is the Front Cover Switch working properly?
Go to step 2. Go to Front Cover
Switch (Interlock Cap
Switch) on page 2-449.
2. Check the Front Cover Interlock Switch operation.
Perform DC330 Component Control on
page 2-26 [041-300] to check the operation of
the Front Cover Switch.
Is the Front Cover Switch working properly?
Replace the MCU PWB
(REP 12.4 MCU PWB
on page 4-206).
Go to Front Cover
Interlock Switch on
page 2-450.