ADF Unit
SM 7-25 D0CA/D0C9/D0C8/D0CB
7.2.4 ORIGINAL TRANSPORT PATH
When [Start] is pressed, the original feed clutch (CL4) 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 is being fed, the stopper [E] becomes unrestricted so as not to impose a load
on the feeding.
When the original reaches the pre-scanning (front side) roller [B] via the ADF entrance roller [A],
the original moves the feed sensor actuator [C] and the original feed sensor (S25) [D] is turned
ON. Then the original feed clutch (CL4) [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.