Xerox Phaser 7400

Error Messages and Codes 3-95
Motor Overheating Failure
Applicable Status Code:
Code T34: Imaging Unit Motor Overheating
Initial Actions:
■ Ensure the ambient temperature and installation clearances meet printer
specifications.
■ Clean all fan ducts.
■ Turn the printer off and allow a minimum of 30 minutes for cooling.
■ Restart the printer.
■ If the problem persists follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack References
■ Imaging Unit Motors
■ Motor Driver Board,
■ Print Engine Motor Driver Board (2/6) (page 10-32)
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1
Test the cooling fans for proper operation
and adequate airflow.
Run the Service Diagnostic Fan tests.
Do the fans operate correctly?
Go to Step 2. Replace the
defective fan.
2
Test the Imaging Unit Motors.
Run the Service Diagnostics Imaging Unit
Motor tests.
Do the motors operate correctly?
Replace the Motor
Driver Board
(
page 8-141).
Replace the
defective motor
(
page 8-105).