Xerox Phaser 4500 Service Manual

4-22 Phaser 4500 Service Manual
Low Paper Sensor
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ Low Paper Sensor
■ Low Paper Actuator
■ Bottom Plate Assembly
■ Low Paper 1 Harness Assembly
■ LVPS
■ HVPS/Engine Logic Board
■ “150-Sheet Feeder, 550-Sheet Feeder, Main Fan”
on page 10-22
■ “Print Engine General Wiring Diagram” on
page 10-17
■ “Print Engine Plug/Jack Locator” on page 10-3
Troubleshooting Procedure
Steps Actions and Questions Yes No
1
Check the Low Paper Actuator:
Install Paper Cassette.
Does the Low Paper Actuator operate
smoothly when the Bottom Plate
Assembly is pushed and released by
the hand?
Does the flag go into the detection point
of the sensor when the Bottom Plate
Assembly is released (Actuator is
pushed up), and out of the detection
point when pushed down?
Go to step 2. Replace the Low
Paper Actuator
(page 8-5).
2
Check the Low Paper Sensor:
1. Enter Service Diagnostics, and from the
Sensor Tests menu select the
appropriate Low Paper Sensor.
2. Manually actuate the Low Paper Sensor.
Does the sensor correctly report the
position of the actuator?
Replace the
HVPS/Engine
Logic Board
(page 8-89).
Go to step 3.
3
Check the Low Paper 1 Harness
Assembly:
1. Remove the Low Paper 1 Harness
Assembly.
2. Test for continuity across J260 <=> J26.
Is it continuous?
Go to step 4. Replace Low
Paper 1 Harness
Assembly.
4
Replace the Low Paper Sensor
(page 8-42).
Does the problem still occur after
replacement?
Replace the
HVPS/Engine
Logic Board
(page 8-89).
Problem solved.

Xerox Phaser 4500 Specifications

General

Brand	Xerox
Model	Phaser 4500
Category	Printer
Language	English