Canon Duplex Color B1, Service Manual

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ADF - Technology > Adjustment > Scanner Unit > Original Pickup Tray Lifter Control
ADF - Technology > Adjustment > Scanner Unit > Original Pickup Tray Lifter Control
Original Pickup Tray Drive Unit
This detects the drive of the tray up/down arm as well as the lowest position of the original
pickup tray (upper).
Tray lifter
motor (M8)
Tray home
position sensor (SR13)
Tray lifter arm
TR
AY
_H
P
_S
LI
FT
_M
O
T
DADF driver PCB
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Pickup Operation
a. Pickup start
1) A use presses the start key or navigates the control panel (see MEMO).
2) The pickup lifter motor (M10) starts driving and the cam that holds the pickup roller unit
rotates upward.
3) Upward shift of the cam makes the pickup roller unit tilt toward the original pickup tray and
the pickup roller is moved down.
[1] Pickup roller unit lifter motor drive signal
[2] Pickup roller unit lifter home position detection signal
[3] Tray home position detection signal
M10
[2] [3]
SR12
SR13
[1]
Tray lifter arm
Cam Original
Pickup
roller unit
DADF driver PCB
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