Xerox Phaser 4500 Service Manual

4-50 Phaser 4500 Service Manual
Optional 550-Sheet Feeder Feed Clutch Assembly
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Feed Clutch Assembly
■ Optional 550-Sheet Paper
Feeder
■ 550-Sheet Paper Cassette
■ 550-Sheet Feeder PWBA
■ Clutch/Sensor Harness 1
■ Clutch/Sensor Harness 2
■ Feeder Harness 2
■ HVPS/Engine Logic Board
■ Feeder Harness 1
■ “550-Sheet Feeder Signal Diagram” on page 10-28
■ “550-Sheet Feeder General Wiring Diagram” on
page 10-27
■ “550-Sheet Feeder Plug/Jack Locator” on
page 10-10
Troubleshooting Procedure
Steps Actions and Questions Yes No
1
Check Clutch/Sensor Harness 1:
1. Disconnect P/J855.
2. Disconnect P/J853.
3. Test each conductor between J855 <=>
J853 for continuity.
Is each conductor continuous?
Go to step 2. Replace Clutch/
Sensor
Harness 1.
2
Check Clutch/Sensor Harness 2:
1. Disconnect P/J85 from the 550-Sheet
Feeder PWBA.
2. Disconnect P/J855.
3. Test each conductor between J85 <=>
J855 for continuity?
Is each conductor continuous?
Go to step 3. Replace Clutch/
Sensor
Harness 2.
3
Check the resistance of the Feed Clutch
Assembly:
Measure the resistance of the clutch
between P/J853-1 <=> P/J853-2.
Does the resistance measure 172 ohm
+/-10% (at 20° C)?
Go to step 4. Replace the Feed
Clutch Assembly
(page 8-110).
4
Check the 550-Sheet Feeder PWBA:
1. Disconnect P/J83 from the 550-Sheet
Feeder PWBA.
2. Test the following points for continuity:
■ P83-1 <=> P85-1
■ P83-2 <=> P85-2
Are both continuous?
Go to step 5. Replace the 550-
Sheet Feeder
PWBA
(page 8-102).

Xerox Phaser 4500 Specifications

General

Brand	Xerox
Model	Phaser 4500
Category	Printer
Language	English