Xerox Phaser 7100

Error Troubleshooting
Xerox Internal Use Only Phaser 7100 Service Manual 2-441
Fuser Exit Sensor
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
•DRW Fuser Harness Assembly, PL 4.1.7
• Fuser Exit Sensor (Fuser Assembly), PL 10.1.1
• MCU PWB, PL 12.1.15
• Fuser Unit on page 7-41
Troubleshooting Procedure
Step Actions and Questions Yes No
1. Check the Fuser Exit Sensor operation.
Perform DC330 Component Control on
page 2-26 [071-104] to check the operation of
the Fuser Exit Sensor.
Is the Fuser Exit Sensor operating properly?
Replace the MCU PWB
(REP 12.4 MCU PWB
on page 4-206).
Go to step 2.
2. Check the connection between the Fuser Exit
Sensor and MCU PWB.
Are the connectors P/J601 and P/J459 connected
securely?
Go to step 3. Connect the
connectors P/J601 and
P/J459.
3. Check the conductivity between the Fuser Exit
Sensor and MCU PWB.
Is the connection between P/J601 <=> P/J459
conducting properly?
Go to step 4. Replace the DRW Fuser
Harness Assembly
(REP 4.2 DRW Fuser
Harness Assembly on
page 4-80).
4. Check the voltage supply (+5VDC) to the Fuser
Exit Sensor.
Measure the voltage between the MCU PWB
GND <=> P/J459-5.
Is there a voltage (approx. +5VDC) output?
Replace the Fuser Unit
(REP 10.1 Fuser Unit
on page 4-183).
Go to +5VDC Power
Troubleshooting on
page 2-457.