ADF Unit
533
Original Set Detection
When an original [A] is placed on the original tray correctly, the original set sensor actuator [B] is pushed up
and the original set sensor [C] turns off (not interrupted). The machine judges this state as the placement of an
original.
The stopper [D] prevents the user from placing originals too far into the feeder.
Original Transport Path
When [Start] is pressed, the feed roller clutch is turned ON. Then the feed roller [A] rotates to drop the pick-up
roller [B] onto the top original of the stack. This moves the stopper [E] out of the way, and the original can be
fed from the feed roller [A] to the ADF entrance roller [C].
The friction pad [D] ensures that only one sheet of the original enters the feeder at a time.
When the original reaches the pre-scanning (front side) roller [B] via the ADF entrance roller, the original
moves the feed sensor actuator [C] and the feed sensor [D] is turned ON. Then the feed roller clutch [E] is
turned OFF to stop the feed roller [F] and the pick-up roller [G], to prevent the next original from being picked
up.
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