Roller Guide Clearance Control - Canon Staple Finisher-D1 Service Manual

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Technology > Saddle Stitcher Unit > Roller Guide Clearance Control

Roller Guide Clearance Control

In case of thin paper if the clearance between the roller guide and the saddle process tray is
too loose, the paper stack gets loose and the alignment
operation does not function properly. Thus, in case of thin paper mode, the machine makes
the clearance between the roller guide and the saddle process tray
tighter compared with the modes other than thin paper. Also, the machine makes the
clearance larger when several sheets of paper are transferred to the saddle
process tray. The machine enlarges the clearance by the specified degree per 5 sheets of
paper.
Gear
Slide rack
Shutter
shift block
Roller guide
Saddle process tray
2 Technology > Saddle Stitcher Unit > Roller Guide Clearance Control
Shutter
shift mount
F-2-40 F-2-40
The clearance between the roller guide and the saddle process tray changes in accordance
with the position of shutter shift block (hereinafter called as shift block).
The Saddle Roller Guide Motor (M204) lifts the shift block. Since the shift block contacts the
shutter shift mount at the first time, it moves with the constant clearance.
When it continues lifting, it reaches the edge of the shutter shift mount and the clearance is
reduced as it moves. In thin paper mode, the machine lifts the shift
block until the clearance becomes the specified degree, and then it lowers the shift block per
5 sheets to enlarge the clearance.
Saddle roller guide
motor (M204)
Slide rack
Saddle roller guide
HP sensor (S207)
Shutter shift
block
Shutter shift mount
Saddle process tray
2-25
Shutter shift
block
Shutter shift
mount
Slide rack
Roller guide
F-2-41 F-2-41
2-25