Oki ES3640MFP Component Replacement Manual page 37

MPT Feed Out Sensor
1.
Open Right Upper Door.
2.
Remove the Sensor Cover from the back of the MPT Tray.
3.
Disconnect the sensor from the harness.
4. Release the hooks that secure the sensor to the MPT Tray.
MPT No Paper Sensor
Note:
A non-captive spring is installed in the Rear Chute to tension the Retard Roller.
1.
Remove MPT Tray.
2.
Open the tray assembly and depress the lift plate to remove 1 (black, 10 mm) screw at the center.
3.
Remove 2 (black, plastic 10 mm) screws that secure the Rear Chute to the MPT Tray.
4. Separate the Rear Chute from the assembly.
5. Release the hooks that secure the sensor to the Rear Chute.
6. Disconnect the sensor connector
Replacement Note Insert the spring underneath the Retard Roller before installing the Rear Chute. Make sure the lift
levers are above the Lift Plate.