Ricoh FT 4015 Service Manual page 56

PAPER FEED AND REGISTRATION 20 December 1996
10.2.2 Paper Feed Mechanism
[D]
[A]
[E]
[C]
[B]
A219D508.wmf
[H]
[F]
[G]
A219D523.wmf
Through several gears and a timing belt, main motor rotation is transmitted to
the tray paper feed clutch gear [A] and the relay roller clutch gear [B].
-Feed rollers-
The tray paper feed clutch gear is on the same shaft as the semicircular
feed rollers [C]. After the key is pressed, the tray paper feed clutch [D] is
energized for 250 milliseconds to release the stopper [E]. Then the drive of
the main motor is transmitted, and the feed rollers make one complete
rotation to feed the top sheet of paper which is enough for the leading edge
of the paper to be caught by the relay rollers [F]. The feed rollers stop when
the stopper drops back into the notch at the end of one complete turn.
-Relay rollers-
The relay roller clutch gear is on the same shaft as the relay rollers. The
rotation timing of the relay rollers is controlled by the relay roller clutch [G].
The CPU energizes the relay roller clutch after the key is pressed (at the
same time as the tray paper feed clutch). Paper is fed from the relay rollers to
the registration rollers [H].
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