Release Operation; Operation Sequence; Basic Operation - Canon DADF-AA1 Service Manual

Chapter 3

3.6.2 Release Operation

When a document is read, the read roller 1 (lower driven rollers) are pressurized/released to prevent the training edge of the document from swaying.
After separation of the document, the read roller 1 (lower driven rollers) are pressurized by the Release motor (M2) during formation of a registration loop.
After lapse of the predetermined time since turning off of the document trailing edge registration sensor, the Release motor is driven to release the read roller 1
(lower driven rollers).
Read roller 1 (lower rollers)
M2

3.6.3 Operation Sequence

<Basic operation sequence>
Original replacement
Document set sensor
(SR5)
Pickup/feed motor
(M1)
Pickup clutch
(CL1)
Registration clutch
(CL2)
Timing sensor
(SR4)
Registration sensor
(SR1)
Read sensor
(SR2)
Delivery reversal sensor
(SR3)
Image leading edge signal
3-16
Read roller 1
Start key ON
Document pickup signal input
Document
separation/feed
loop formation
Release motor HP sensor
Release motor
F-3-24
M2
F-3-25
Document reading
Read stanby
F-3-26
0024-6999
0024-7001
Document
delivery