Xerox Phaser 7100

Error Troubleshooting
Phaser 7100 Service Manual Xerox Internal Use Only2-316
Switching Sensor Failure
The Switching Sensor error has occurred due to one of the following problems.
• Retract was not detected within the specified time (2400 ms) after the 1st BTR Retract operation
has started.
• Contact was not detected within the specified time (2400 ms) after the 1st BTR Contact operation
had started.
Applicable Fault Codes
• 094-320: 1st BTR Retract Fail/1st BTR Home Position Fail
• 094-321: 1st BTR Contact Fail
Initial Actions
• Power cycle the printer.
• If the problem persists, perform the following procedure.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
• IBT Retract Cam Assembly, PL 9.1.8
• IBT Unit, PL 9.1.99
• MCU PWB, PL 12.1.15
Troubleshooting Procedure
Step Actions and Questions Yes No
1. Check the installation of the IBT Retract Cam
Assembly (REP 9.6 IBT Retract Cam Assembly on
page 4-168).
Is the IBT Retract Cam Assembly installed
properly?
Go to step 2. Reinstall the IBT
Retract Cam Assembly.
2. Check the installation of the IBT Unit (REP 9.10
IBT Unit on page 4-177).
Is the IBT Unit installed properly?
Go to step 3. Reinstall the IBT Unit.
3. Check the Belt Retract Sensor operation.
Perform DC330 Component Control on
page 2-26 [094-200] to check the operation of
the Belt Retract Sensor.
Is the Belt Retract Sensor operating properly?
Go to step 4. Go to Belt Retract
Sensor on page 2-442.