Xerox Phaser 4500 Service Manual

4-56 Phaser 4500 Service Manual
Duplex Unit Sensor
6
Check the HVPS/Engine Logic Board:
1. Disconnect P/J10 from the HVPS/
Engine Logic Board.
2. Test for continuity across P10-1 <=>
P27-8.
Is it continuous?
Go to “LVPS (Low
Voltage Power
Supply)” on
page 4-4.
Replace the
HVPS/Engine
Logic Board
(page 8-89).
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Duplex Unit Sensor
■ Duplex Unit Actuator
■ Duplex Unit Sensor Harness
■ Duplex Unit PWBA
■ Duplex Unit Assembly Harness
■ HVPS/Engine Logic Board
■ LVPS
■ LVPS Harness Assembly
■ “Duplex Unit Signal Diagram” on page 10-30
■ “Duplex Unit General Wiring Diagram” on
page 10-29
■ “24 V Interlock, Rear Cover Switch, Main Motor, Sub
Fan, Exit Motor Assembly” on page 10-18
■ “Duplex Unit Plug/Jack Locator” on page 10-12
Troubleshooting Procedure
Steps Actions and Questions Yes No
1
Check the Duplex Unit Actuator:
Does the Duplex Unit Actuator operate
smoothly?
Does the flag move between the sensor
arms when there is no paper in the
Duplex Unit, and out of the sensor arms
when the paper is present?
Go to step 2. Replace the
Duplex Unit
Actuator.
2
Check the Duplex Unit Sensor (1):
1. Enter Service Diagnostics, and from the
Sensor Tests menu select Duplex
Sensor test.
Does the sensor correctly report the
position of the actuator?
Replace the
HVPS/Engine
Logic Board
(page 8-89).
Go to step 4.
Troubleshooting Procedure (Continued)
Steps Actions and Questions Yes No

Xerox Phaser 4500 Specifications

General

Brand	Xerox
Model	Phaser 4500
Category	Printer
Language	English