Original Detection - Canon imageRUNNER ADVANCE C255 Series Service Manual

■ Original Detection

As the actuator is pushed up by placing an original on the Original Tray, the Document Sensor (SR4204) detects that light is
blocked and judges as original present.
■ Pickup Operation
The pickup operation is performed by the Pickup Roller, Separation Roller, and Feed Roller.
The Pickup Roller and Feed Roller are driven by the ADF Motor (M4201). By turning ON the ADF Pickup Clutch (CL4200) after
completion of the pickup operation, the Pickup Roller Unit is lifted up.
No.
1 Pickup Roller
2 Feed Roller
3 Separation Roller
M4201 ADF Motor
CL4200 ADF Pickup Clutch
■ Original Feed Control
With this machine, an arch is formed at the location where the Registration Roller is allocated in order to correct skew and increase
the feed accuracy.
[1]
No.
1 Registration Roller
2 Registration Sensor
■ Jam Detection
This equipment detects original jam using the sensors shown in the figure below.
When a jam occurs, the machine stores the information by the code.
M4201
[3] [2]
CL4200
Name
[2]
Name
35
[1]
2. Technology