Phaser 6280 Color Laser Printer Service Manual 4-27
General Troubleshooting
Sensor Tests
K Mode Sensor
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. Perform the K Mode Sensor test: Engine Diag > Sensor Test > K Mode
SNR.
3. Open the Front Cover.
4. Remove the Rear Cover (page 8-12).
5. Remove the Right Side Cover (page 8-13).
For the following step, only rotate the K Drive Assembly to access the
gear. Do not disconnect the wiring harnesses.
6. Remove the K Drive Assembly (page 8-76).
7. Press the lever mounted on the Solenoid to retract the actuator from the
sensor.
8. Insert a sheet of paper between the sensor back and forth and check the
information on the Control Panel display. The Low and High values
change from 0 up to 99.
9. Press the Cancel button to stop the K Mode Mode Sensor test.
s6280-121
3
2
1
Control Panel
Normal
K Mode Snr
L - 0
K Mode Snr
H - 0
K Mode Solenoid
Actuator
K Mode Sensor
Paper
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