Close Duplex Unit Cover - Xerox Phaser 4500 Service Manual

Close Duplex Unit Cover

Phaser 4500/4510 Service Manual
Troubleshooting Procedure (continued)
Steps Actions and Questions
Check the rear cover switch
3
Enter Service Diagnostics, and from
the Sensor Tests
Rear Cover Switch
Is the position of the rear cover
accurately reported when the rear
cover is opened and closed?
Troubleshooting Reference
Applicable Parts
HVPS/engine logic board
LVPS
Duplex unit lower housing
Duplex unit housing cover
Duplex unit switch
Duplex unit PWBA
Troubleshooting Procedure
Steps Actions and Questions
1 Open the duplex unit housing cover.
Is the tab on the duplex unit lower
housing that actuates the cover
interlock switch damaged?
Enter Service Diagnostics, and from
2
the
Sensor Tests
Duplex Cover Switch
Is the position correctly reported
when the duplex unit Cover is opened
and closed?
Yes
Replace the
HVPS/engine
menu select the logic board.
test. (page 8-73)
Wiring and Plug/Jack Map References
"Duplex Unit Signal Diagram" on page 10-35
"Duplex Unit General Wiring Diagram" on
page 10-34
"Duplex Unit Plug/Jack Locator" on page 10-14
Yes
Replace the
duplex unit
lower housing
(page 8-100).
Replace the
menu select the HVPS/engine
test. logic board
(page 8-73).
Error Messages and Codes
No
Go to and
complete the
following:
"24 V
Interlock" on
page 4-24.
"Rear Cover
Switch" on
page 4-26.
No
Go to step 2.
Go to "Duplex
Unit Switch" on
page 4-53.
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