Xerox Phaser 4500 Service Manual

Error Messages and Codes 3-47
Jam At Rear; Open Duplex And Rear Cover To Clear
Error Codes
E7-1: Jam at Rear
E7-2: Jam at Duplex
E7-3: Jam at Duplex
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ HVPS/Engine Logic Board
■ Duplex Unit Sensor
■ Duplex Unit Actuator
■ Duplex Unit Roller
■ Pinch Roller
■ Duplex Unit Motor
■ “Duplex Unit Signal Diagram” on page 10-30
■ “Duplex Unit General Wiring Diagram” on
page 10-29
■ “Duplex Unit Plug/Jack Locator” on page 10-12
Troubleshooting Procedure
Steps Actions and Questions Yes No
1
Does the error occur when the power is
turned ON?
Go to step 2. Go to step 4.
2
1. Open the Duplex Unit Housing Cover.
2. Check for paper at the Duplex Unit
Actuator
Is there paper at the Duplex Unit
Actuator?
Remove the
paper, and go to
step 3.
Go to “Duplex
Unit Sensor” on
page 4-56.
3
Does the error occur when the power is
turned ON?
Go to “Duplex Unit
Sensor” on
page 4-56.
Go to step 4.
4
1. Remove and re-install the Duplex Unit.
2. Enter Service Diagnostics, and from the
Engine Test Print menu select Duplex
and set to ON.
3. From the Engine Test Print menu select
Print Test Pattern.
Does the error occur when making two-
sided test prints?
Go to step 5. Problem solved.
5
Check the paper position:
Open the Duplex Unit Housing Cover.
Does the leading edge of the paper
reach the top roller of the Duplex Unit?
Go to step 6. Go to “Exit Motor
Assembly” on
page 4-31.

Xerox Phaser 4500 Specifications

General

Brand	Xerox
Model	Phaser 4500
Category	Printer
Language	English