Ricoh FT8680 Service Manual page 149

31 July 1995 ARDF
16.14 CFF MECHANISM
[B]
[F]
[A]
[G]
[D]
[E]
[C]
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There are four guides to maintain
computer paper transport and stacking capabilities.
The CFF stopper [A] of the paper feed unit prevents the original from entering
the ADF paper feed entrance. The rear CFF guide [B] prevents side to side
movement of the original to ensure that the CFF sensor [C] counts the holes
lined up on the computer form.
The CFF sensor [C] is installed in front of the original guide. The CFF sensor
consists of one CFF set sensor [D] and two CFF feed hole sensors [E].
The CFF guide [F] prevents original feed-out failure caused by the perforated
lines. The CFF extension [G] ensures stacking of the computer paper.
When a computer paper is set in the CFF guide, the holes are used to
calculate paper length in order to print one sheet at a time.
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