Phaser 6180 Color Laser Printer Service Manual 4-27
General Troubleshooting
Sensor Tests
Duplex Jam Sensor
Caution
When performing this procedure, remove and cover the Print Cartridges 
to avoid exposure to light.
1. Enter the Service Diagnostic menu (page 4-5).
2. Open the Front Cover.
3. Remove the Transfer Unit (page 8-7).
4. Remove the Print Cartridges (page 8-9).
5. Perform the Duplex Jam Sensor test: Engine Diag > Sensor Test > 
DuplexJamSensor.
6. Move the Actuator back and forth and check the information on the 
Control Panel display. The Low and High values change from 0 up to 99.
7. Press the Cancel button to stop the Duplex Jam Sensor test.
s6180-341
DuplexJamSensor 
H-0
Control Panel
Normal
Actuator
DuplexJamSensor 
L-0