Xerox Phaser 7100

Error Troubleshooting
Xerox Internal Use Only Phaser 7100 Service Manual 2-423
Clutch Troubleshooting
Registration Clutch
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
• Registration Clutch, PL 5.1.11
• MCU PWB, PL 12.1.15
• Paper Transport on page 7-51
Troubleshooting Procedure
Step Actions and Questions Yes No
1. Check the Registration Clutch operation.
Perform DC330 Component Control on
page 2-26 [071-013] to check the operation of
the Registration Clutch.
Is the Registration Clutch 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 Registration
Clutch and MCU PWB.
Is the connector P/J458 connected securely?
Go to step 3. Connect the connector
P/J458.
3. Check the resistance of the Registration Clutch.
Turn Off the power, remove the Registration
Clutch (REP 5.5 Registration Clutch Assembly on
page 4-120), and check the wire resistance
between the two terminals.
Is the wire resistance 144 Ohms (at 20° C)?
Go to step 4. Replace the
Registration Clutch
Assembly (REP 5.5
Registration Clutch
Assembly on
page 4-120).
4. Check the voltage supply (+24VDC) to the
Registration Clutch.
Measure the voltage between the MCU PWB
GND <=> P/J458-1.
Is there a voltage (approx. +24VDC) output?
Close the Interlock Switch and check.
Replace the
Registration Clutch
Assembly (REP 5.5
Registration Clutch
Assembly on
page 4-120).
Go to +24VDC Power
Troubleshooting on
page 2-455.