Xerox Phaser 4510 - Interlock Switch Assembly (P4500 Only); Rear Cover Switch

4-26 Phaser 4500/4510 Service Manual
General Troubleshooting
Rear Cover Switch
Interlock Switch Assembly (P4500 only)
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Rear cover switch
■ LVPS
■ HVPS/engine logic board
■ “P4500: 24 V Interlock, Rear Cover Switch,
Main Motor, Sub Fan, Exit Motor Assembly” on
page 10-21
■ “Print Engine Wiring Diagrams” on page 10-19
■ “Print Engine Plug/Jack Locator” on page 10-3
Troubleshooting Procedure
Steps Actions and Questions Yes No
1 Check the rear cover switch:
1.Disconnect P/J44 from the LVPS.
2.Test for continuity across P/J44-1 <=> P/
J44-3 while manually operating the
switch.
Is the switch continuous when pushed and
open when released?
Go to “LVPS
(Low Voltage
Power
Supply)” on
page 4-4.
Replace the
rear cover
switch
(page 8-67).
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Interlock switch assembly
■ LVPS
■ HVPS/engine logic board
■ “Laser Unit, 5 V Interlock, Interlock Switch
Assembly” on page 10-29
■ “Print Engine Wiring Diagrams” on page 10-19
■ “Print Engine Plug/Jack Locator” on page 10-3
Troubleshooting Procedure
Steps Actions and Questions Yes No
1 Check the interlock switch assembly
1.Disconnect P/J411.
2.Test for continuity across points
P/J411-1 <=> P/J411-3 while manually
operating the switch.
Is the switch continuous when pushed and
open when released?
Go to step 2. Replace the
interlock
switch
assembly
(page 8-12).