Xerox Phaser 7700 Service Manual page 91

Error Chain /
Code Link
60 04-640 ERROR 60 DRUM MOTOR FAILURE
Enter Service Diagnostics Mode and run the "Print Cartridge Motor" test.
Does the motor run?
Yes No
Remove the Rear Cover (RRP 1, on page 7-140), the Rear Cover Shield
(RRP 9, on page 7-149) and the Rear Shield Bracket (RRP 10, on page 7-150).
Connect the power cord and enter Service Diagnostics Mode.
Measure the voltage at the Print Engine Controller Interface Board P407-4(+)
(see figure page 3-47)and frame ground.
Is the voltage +5 VDC?
Yes No
Replace the Engine Control Board (RRP 42, on page 7-190).
Measure the voltage at the Print Engine Controller Interface Board P407-6(+)
(see figure page 3-47) and frame ground.
Does the voltage measure +24 VDC?
Yes No
Replace the Engine Control Board (RRP 42, on page 7-190).
Measure the voltage at the Print Engine Controller Interface Board P407-1(+)
(see figure page 3-47) and
frame ground.
Is the voltage +5 VDC?
Yes No
Replace the Engine Control Board (RRP 42, on page 7-190).
Run the "Print Cartridge Motor" test.
Does the voltage still measure +5 VDC at P407-1?
Yes No
Replace the Print Cartridge Drive Assembly (RRP 53, on page 7-202).
Replace the Engine Control Board (RRP 42, on page 7-190).
Replace the Engine Control Board (RRP 43, on page 7-191).
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Phaser 7700 Color Printer
Front Panel Message