Toner Sensor - Xerox Phaser 4500 Service Manual

Toner Sensor

Troubleshooting Reference
Applicable Parts
Toner Sensor
Toner Sensor Assembly
Toner Harness Assembly 1
Toner Harness Assembly 2
Print Cartridge
HVPS/Engine Logic Board
Troubleshooting Procedure
Steps Actions and Questions
1 Check the Print Cartridge (1):
Does sufficient toner remain in the Print
Cartridge?
2 Check the Print Cartridge (2):
Does the problem still occur after
replacing the Print Cartridge?
3 Check the Toner Sensor Assembly
installation.
Is the Toner Sensor Assembly installed
correctly, and does the D-Holder
operate smoothly?
4 Check the Toner Sensor function:
1. Enter Service Diagnostics, and from the
Sensor Tests
Sensor.
2. Remove and replace the Print Cartridge.
Does the toner Sensor correctly detect
the presence of the toner in the Print
Cartridge?
5 Check the Toner Harness Assembly 1:
1. Remove Toner Harness Assembly 1.
2. Test for continuity across J220 <=>
J221.
Is it continuous?
General Troubleshooting
Wiring and Plug/Jack Map References
"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
menu select Toner
Yes
Go to step 3.
Go to step 3.
Go to step 4.
Go to step 7.
Go to step 6.
No
Go to step 2.
Problem solved.
Replace the
Toner Sensor
Assembly.
Go to step 5.
Replace the
Toner Harness
Assembly 1.
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