Canon F1 Service Manual page 63

2
Technology > Controls > DADF > Original Feed Assembly
■ Original Feed Assembly
● Overview
This equipment is a 1-path 2-sided model and does not perform reversing operation.
Refer to the following for the movement of original when it is being fed.
[Reference] Technology explanation > Basic Configuration > Overview of Operation Mode >
Overview
● Original Feed Control
a. Registration arch
Registration arch is created at registration roller area.
DADF driver PCB
Original
PCB3
2 Technology > Controls > DADF > Original Feed Assembly
b. Temporary stop position
At the time of 1-sided mode with mix of same configuration, feeding is once stopped where
paper is at downstream from the lead roller 1 while at upstream from the scanning position of
the front side. Feeding of preceding original is also stopped when the 2nd sheet or later is fed
because the drive of the read motor (M4) is stopped.
DADF driver PCB
2nd original
PCB4
F-2-90
1st original
M4
2-50
F-2-91
2-50