Repair Information 4-63
4025-XXX
Toner Sensor
Removal
1. Remove the Rear Cover.
2. Disconnect P/J127 from the I/O PWB.
3. Open the Left Upper Cover.
4. Remove the EP Cartridge.
5. Remove the Flywheel Assembly.
6. Remove the Left Cover Interlock Switch.
7. Remove the Main Drive Assembly.
8. Use the flat blade of a screwdriver to pry up the front end of the Toner Sensor (see
figure).
9. When the front end is freed, remove the Sensor along with the attached wire
harness.
Replacement
1. Reinstall the Toner Sensor and attached springs (see figure for correct positioning).
2. Route the attached wire harness along the channel and through the small opening in
the rear of the frame.
3. Press the Toner Sensor into the cutout in the bottom of the EP Cartridge cavity.
4. Press and release the Toner Sensor to make sure it has a spring-action return.
5. Reinstall the Main Drive Assembly.
6. Reinstall the Left Cover Interlock Switch.
7. Reinstall the Flywheel Assembly.
8. Reconnect P/J127 to the I/O PWB.
9. Reinstall the Rear Cover.
10. Reinstall the EP Cartridge.
11. Close the Left Upper Cover.
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