Canon Duplex Color B1, Руководство по обслуживанию

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ADF - Technology > Adjustment > Scanner Unit > Original Pickup Tray Lifter Control
ADF - Technology > Adjustment > Scanner Unit > Original Pickup Tray Lifter Control
4) Tray lifter motor (M8) starts driving and the tray lifter arm pushes the original pickup tray
(upper) upward.
5) The pickup roller unit is pushed up until the original contacts the pickup roller unit and the
paper surface sensor (SR6) detects it.
6) The tray lifter motor (M8) stops driving once the paper surface sensor (SR6) detects the
pickup roller unit.
7) The machine executes pickup (after the start key is pressed)(see MEMO).
8) If the paper surface sensor (SR6) cannot detect the pickup roller unit during pickup, the tray
lifter motor (M8) starts driving and the original pickup tray is again moved up until the paper
surface sensor (SR6) detects the pickup roller unit.
[Reference] Technology > Controls > Original Pickup Assembly > Original Pickup/Separation
Control
[1] Paper surface detection signal
[2] Tray lifter motor drive signal
M8
SR6
[2] [1]
DADF driver PCB
b. Pickup completion
1) When the original sensor (SR1) cannot detect an original, the tray lifter motor (M8) drives
the tray lifter arm (opposite direction to at the time of pickup) to move down the original
pickup tray.
2) Once the tray home position sensor (SR13) detects that the tray lifter arm is shifted down
to the lowest position, the pickup roller unit lifter motor (M10) starts driving to rotate the
cam downward.
3) Downward shifting of cam makes the pickup roller unit return to the pre-pickup position and
pickup operation completes.
[1] Pickup roller unit lifter motor drive signal
[2] Pickup roller unit lifter home position detection signal
[3] Tray home position detection signal
[4] Tray lifter motor drive signal
M10 M8
[2] [3]
SR12
SR13
[1] [4]
DADF driver PCB