MX-1800N (serv.man33). Details of each Section - M Process Control Sensor, Registration Sensor Section - Sharp Copying Equipment Service Manual (repair manual). Page 2

MX-1800N  PROCESS CONTROL SENSOR, REGISTRATION SENSOR SECTION  M – 2

1) Remove the developing unit (K).
2) Remove the drum unit (K).
3) Remove the primary trasnfer unit.
4) Remove the paper feed tray 1.
5) Remove the rear cabinet.
6) Remove the ADU connection drive.
7) Remove the resist roller unit.
8) Disconnect the connector. Remove the screws. Release the

pawl, then remove the process control sensor.

b. Process control sensor
1)

Remove the process control sensor unit.

2)

Push up the shutter operation plate, and clean the registration
sensor (A) and the process control sensor (B). 

c. Process control shutter solenoid
1)

Remove the process control sensor unit.

2)

Remove the screw, slide the sensor mounting stay, and
remove the sensor mounting stay. 

3)

Remove the screws. Disconnect the connector, and remove
the process control shutter solenoid.
* When installing, engage the process control shutter solenoid

with the groove in the shutter mounting plate (A). 

(1)

Process 
control 
sensor unit

a

Resist sensor

{

b

Process control sensor

{

c

Process control shutter 
solenoid

(1)-a

(1)-a

(1)

(1)-c

(1)-b