Ricoh FT5233 Service Manual page 670

ORIGINAL FEED 12 February 1992
6.3 ORIGINAL FEED-IN MECHANISM
[D]
[F]
[C]
[B]
[E]
[A]
[F]
The belt drive motor [A] drives the pick-up roller [B], the feed roller [C], and
transport belt [D] via a feed clutch and a gear train. And, the pull out roller [E]
is driven by friction with the feed roller.
The pick-up solenoid is energized 100 milliseconds after the Start key is
pressed. Then 100 milliseconds after the solenoid is energized, the belt drive
motor starts turning. The pulse generator disc [F] on the pull-out roller shaft
always turns when the belt drive motor is on in the forward direction.
238 encoder pulses of the belt drive motor after the original's trailing edge
passes the registration sensor, the relay rollers and the transport belt stop
turning.
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