Constraction Of The Control System (Saddle Stitcher Unit) - Canon Saddle Finisher-T2 Service Manual

2.2.4 Constraction of the Control System (Saddle Stitcher Unit)

The paper output 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 paper. The paper positioning plate is kept in wait at a predetermined location to suit the size of paper.
The paper positioning plate is driven by the paper positioning plate motor (M4), 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 a
predetermined position. The feed plate serve to move sheets by coming into contact with or moving away from sheets
as needed.
The alignment plates put the stack into order each time a sheet is output. The alignment plates are driven by the
alignment motor (M5), whose 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 paper folding rollers when the paper is being output, 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
paper folding rollers.
The inlet is equipped with the No.1, No.2 and No.3 paper sensors (PI18, PI19, PI20) each suited to a specific paper
size, and the paper positioning plate is equipped with a paper positioning plate paper sensor (PI8).
Escape delivery
roller
Escape feed
roller
Escape inlet
flapper
F-2-16
Chapter 2
Inlet roller
0009-2540
2-13