Oki ES3640MFP Component Replacement Manual page 56

Registration Shutter Solenoid
1. Remove the Registration Sensor Assembly.
2.
Remove the E-clip that secures the Registration Shutter linkage to the assembly.
3.
Disconnect the Registration Shutter Solenoid connector.
4. Remove 1 (metal, 6 mm) screw, with washer, securing the Registration Shutter Solenoid to the assembly.
Automatic Density Control Sensor
Note:
The Registration Shutter return spring is not captive to the shutter. Note the position of the spring before
disassembly.
1. Remove the Registration Sensor Assembly.
2.
Turn the assembly over and release the 3 bosses that retain the Registration Shutter in the assembly.
3.
Remove the 1 (metal, 6 mm) screw that secures the Automatic Density Control Sensor to the assembly.
4. Slide the sensor to the left to release the sensor from the assembly.
5.
Disconnect the Automatic Density Control Sensor connector, and then remove the Automatic Density Control
Sensor.