Xerox Phaser 4500

General Troubleshooting 4-49
Optional Feeder Paper Size Switch Assembly
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Option Paper Size Switch
Assembly
■ Feeder Size Assembly Harness
1
■ Feeder Size Assembly Harness
2
■ Optional 550-Sheet Paper
Feeder
■ 550-Sheet Paper Cassette
■ 550-Sheet Feeder PWBA
■ HVPS/Engine Logic Board
■ “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 Feeder Size Assembly Harness 1:
1. Remove Feeder Size Assembly
Harness 1.
2. Test each conductor between J801 <=>
J802 for continuity.
Is each cable continuous?
Go to step 2. Replace Feeder
Size Assembly
Harness 1.
2
Check Feeder Size Assembly Harness 2
for continuity:
1. Disconnect P/J80 from the 550-Sheet
Feeder PWBA.
2. Disconnect P/J801.
3. Test each conductor between J80 <=>
J801 for continuity.
Is each cable continuous?
Go to step 3. Replace Feeder
Size Assembly
Harness 2.
3
Check the Option Paper Size Switch
Assembly.
Is the harness of Option Paper Size
Switch Assembly continuous?
Go to “Optional
550-Sheet Feeder
PWBA (Tray 3)” on
page 4-43, or
“Optional
550-Sheet Feeder
PWBA (Tray 4)” on
page 4-44.
Replace the
Option Paper
Size Switch
Assembly
(page 8-99).