Xerox Phaser 4500 Service Manual

4-20 Phaser 4500 Service Manual
No Paper Sensor
Troubleshooting Reference
Applicable Parts Wiring and Plug/Jack Map References
■ No Paper Sensor
■ No Paper Actuator
■ 150-Sheet Feeder Assembly
■ Tray 1 Assembly Harness
■ Tray 2 Assembly Harness
■ Chute Assembly Harness
■ HVPS/Engine Logic Board
■ Bottom Plate Assembly
■ LVPS
■ 550-Sheet Feeder Assembly
■ “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 No Paper Actuator for shape
and operation:
Does the No Paper Actuator operate
smoothly?
Is the flag between the sensor detecting
point when the No Paper Actuator is low
(there is no paper), and out of the
detecting point when the No Paper
Actuator is high (there is paper)?
Go to step 2. Replace the No
Paper Actuator
(steps 1-3
beginning on
page 8-24).
2
Check the Bottom Plate Assembly:
Insert the empty Paper Cassette.
Is the flag of the No Paper Actuator
between the sensor arms?
Go to step 3. Replace the
Paper Cassette.
3
Check the No Paper Sensor:
1. Remove the Paper Cassette.
2. Reach into the Paper Cassette cavity
and manually actuate the No Paper
Actuator.
3. Measure the voltages across
P/J24-8 <=> P/J24-7 and P/J24-3 <=>
P/J24-2 while moving the actuator.
Do the voltages measure 0VDC when
the No Paper Actuator is moved up, and
3.3 VDC when down?
Replace the
HVPS/Engine
Logic Board
(page 8-89).
Go to step 4.

Xerox Phaser 4500 Specifications

General

Brand	Xerox
Model	Phaser 4500
Category	Printer
Language	English