Canon F1 Service Manual page 53

2
Technology > Controls > DADF > Original Size Detection
● Detection at Feeding
Detection in feed direction
Original size in feed direction is calculated by using the detection signal of post-separation
sensor 3 (PCB2) and the lead sensor 1 (PCB4).
DADF driver PCB
PCB2
Original
PCB4
2 Technology > Controls > DADF > Original Size Detection
Detection in width direction
The size is detected by the original size sensor 1 to 4 (SR17 to 20).
F-2-81
SR19
SR20
SR17
SR18
DADF driver PCB
2-40
F-2-82
2-40