4-32 Phaser 6280 Color Laser Printer Service Manual
General Troubleshooting
CRU Sensor Y (Yellow Toner Cartridge 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. Open the Front Cover.
3. Remove the Transfer Unit (page 8-8).
4. Remove the Print Cartridges (page 8-10).
5. Perform the CRU Sensor Y test: Engine Diag > Sensor Test > CRU
Sensor Y.
6. Install and remove the Yellow Print Cartridge while checking 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 CRU Sensor Y test.
Control Panel
Normal
CRU Sensor Y
L-0
CRU Sensor Y
H-0
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