Xerox PHASER 8500 Service Manual page 107

Phaser 8400/8500/8550/8560 Color Printer Service Manual
8400 PEST Description
Drum Fan disconnect. The
37,014.41:
Drum Fan is not drawing the
expected power.
37,015.42:
Troubleshooting Procedure for Fans
Step Questions and Actions
1 Run the appropriate diagnostic test:
37,013.40 = (8400) Electronics Fan
37,014.40 = (8500/8550/8560)
Electronics Fan
37,014.41 = (8400) Drum Fan
37,015.41 = (8500/8550/8560) Drum
Fan
Did the test pass?
Check the wiring for the problem fan.
2
Is the wiring damaged?
8400 PEST Description
PEST 50 V power supply test.
37,016.43:
For Phaser 8400 printers, the 50
V power supply is loaded with
the Head Maintenance clutch,
and then tested.
Error Messages and Codes
8500/8550/8560 PEST Description
Electronics Module Fan
Disconnect. The Electronics Module
Fan is not drawing the expected
power.
Drum Fan disconnect. The Drum
Fan is not drawing the expected
power.
Yes
Go to Step 2. Go to Step 2.
Replace the Replace the
harness. fan.
8500/8550/8560 PEST description
50 V power supply test. The power
supply is loaded with the Head
Maintenance, Deskew, and the Pick
Clutches.
Check the 50 V on the Power
supply. Or, ensure that the cables
are not plugged into any of the
clutches.
The expected power from the supply
is not being drawn. This error may
be caused by a power supply that is
faulty or shorted by some other 50
V device.
Check the 50 V on the Power
supply. Or, ensure that the cables
are not plugged into the clutch.
No
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