Xerox PHASER 7500 - Page 265

Phaser 7500 Printer Service Manual 3-127
Error Messages and Codes
Drive Fan Fail
The Drive Fan error was detected.
Applicable Chain-Link Code
• 042-605: Drive Fan Fail
Initial Actions
• Rotate the HV Fan manually to check for loading.
• Power cycle the printer.
• If the problem persists, follow the procedure below.
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ MCU PWB, PL18.3.6
■ Drive Fan, PL18.3.17
Troubleshooting Procedure
Step Actions and Questions Yes No
1 Check the Fault History.
Has error 041-330 MCU PWB F7
Blows occurred?
Go to step 5. Go to step 2.
2 Check the Fan rotation
Turn Off the power.
Disconnect and reconnect P/J231.
Turn On the power.
Perform the Fan Motors test in
Diagnostics.
Is the Drive Fan rotating?
Go to step 4. Go to step 3.
3 Check the connection between the
Drive Fan J231 and the MCU PWB
J417 for open circuit, short circuit,
and poor contact.
Is it conducting properly?
Replace the
following parts
in sequence:
■ Drive Fan (REP
18.15,
page 8-206)
■ MCU PWB
(REP 18.12,
page 8-202)
Repair the
sections that
have short
circuits and
poor contacts.
4 Check the connection between the
Drive Fan J231-2 and the MCU
PWB J417-A3 for open circuit, short
circuit, and poor contact. Is it
conducting properly?
Replace the
MCU PWB (REP
18.12,
page 8-202).
Repair the
sections that
have short
circuits and
poor contacts.