Paper Depositing Mechanism; Outline - Canon FINISHER-C1 Service Manual

CHAPTER 3 SADDLE STITCHER UNIT BASIC OPERATION
III. PAPER DEPOSITING MECHANISM
A.

Outline

The paper depositing mechanism serves to keep a stack of sheets coming from the finisher in
place for the next steps (stapling, folding).
The paper inlet is equipped with the No. 1 flapper and the No. 2 flapper, which operate to
configure the paper path to suit the size of sheets. The paper positioning plate is kept in wait at a
pre-determined location to suit the size of paper. The paper positioning plate is driven by the paper
positioning plate motor (M4S), and the position of the plate is identified in reference to the number
of motor pulses coming from the paper positioning plate home position sensor (PI7).
A sheet moved by the inlet roller is handled by the feed rollers and the crescent roller and held
in specific position. The feed rollers serve to move sheets by coming into contact with or away from
sheets as needed.
The alignment plates put the stack into order each time a sheet is deposited. The alignment
plates are driven by the alignment motor (M4S), and its position is identified in reference to the
number of motor pulses coming from the alignment plate home position sensor (PI5).
To prevent interference between paper and the folding rollers when the paper is being depos-
ited, the folding rollers are designed to be covered by a guide plate. The guide plate moves down
before paper is folded so as to expose the folding rollers.
The inlet is equipped with the No. 1, No. 2, and No. 3 sensors (PI1A, PI2Al, PI3A), each suited
to a specific paper size, and the paper positioning plate is equipped with a paper positioning plate
paper sensor (PI8).
3-14 COPYRIGHT © 1998 CANON INC. FINISHER-C1/SADDLE FINISHER-C2 REV. 0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)