Xerox Phaser 8400 Service Manual

3-52 Phaser 8400/8500/8550 Color Printer
8400 8500/8550 PEST Description
37,036.45: 37,039.48:
Process motor disconnect. The process motor is not
drawing the expected power from the supply.
37,037.46: 37,040.40:
Process motor short. The process motor is drawing too
much power from the supply.
Troubleshooting Procedure for Process Motor
Step Questions and Actions Yes No
1
1. Do the process drive gears, transfix shaft,
and drum maintenance shafts rotate freely?
Go to Step 2. Look for drag in
the rollers or
replace the
process drive.
2
1. Run the Process Motor test.
2. Did the test pass?
Replace the
electronics
module.
Go to Step 3.
3
1. Check the wiring for damage. Replace the process drive
assembly.
8400 PEST Description 8500/8550 PEST description
37,038.47:
The power supply did not reset
properly as requested. The reset line
may not be connected.
37,039.48:
Power supply +5 volt over limit.
37,040.40:
Power supply +5 volt under limit.
37,041.41:
Power supply +1.8 volt over limit. The power supply did not reset
properly as requested. The reset line
may not be connected.
37,042.42:
Power supply +1.8 volt under limit.
37,043.43:
Power supply +2.5 volt over limit. Power supply +2.5 volt over limit.
37,044.44:
Power supply +2.5 volt under limit. Power supply +2.5 volt under limit.
37,045.45:
Power supply +3.3 volt over limit. Power supply +3.3 volt over limit.
37,046.46:
Power supply +3.3 volt under limit. Power supply +3.3 volt under limit.
37,047.47:
Power supply +12 volt over limit. Power supply +12 volt over limit
37,048.48:
Power supply +12 volt under limit Power supply +12 volt under limit

Xerox Phaser 8400 Specifications

General

Brand	Xerox
Model	Phaser 8400
Category	Printer
Language	English