Canon Staple Finisher-AA1, Service Manual

Page: 54 / 228

Processing Tray Unit
Outline
The processing tray unit aligns, shifts, and staples the delivered paper, and then delivers the paper stack onto the stack tray.
Note that alignment is not performed in the processing tray unit if shifting, stapling, or staple-free binding is not performed.
(However, alignment is performed for 2-sided print of A3 and B4 sheets weighing less than 64 g/m2.)
Paper Retainer
Staple-Free Binding Unit
Front Alignment Plate
Rear Alignment Plate
Paper End Pushing Guide
Paper End Pushing Guide
Rear Tray Auxiliary Guide
Front Tray Auxiliary Guide
Paddle
Paddle
Stapler Unit
Paper Retainer
Return Roller
Return Roller
Paper End Assist Guide
Paper End Assist Guide
Processing Tray Stopper
Paper End Retainer
Paper End Retainer
Name Role
Paddle Feeds the paper delivered from the pre-processing roller onto the processing tray unit.
Return Roller Feeds the paper fed onto the processing tray to the stopper.
Processing Tray Stopper
Allows the paper fed to the processing tray to be pressed against itself to align the paper in the feed
direction.
Front/Rear Alignment Plate Aligns the paper fed to the processing tray in the width direction and shifts the paper.
Paper End Assist Guide
Supports the trailing edge of the paper stack fed to the processing tray and delivers the stack by pushing
it onto the stack tray.
Paper End Pushing Guide
Pushes down on the trailing edge of the paper delivered from the pre-processing roller and drops the
paper trailing edge onto the processing tray.
Stapler Unit Staples sheets.
Staple-free Binding Unit Binds sheets without using staples.
Front/Rear Tray Auxiliary
Guide Supports paper stacking when long paper is stacked to prevent alignment errors caused by warped
paper.
Paper Retainer Retains the paper stacked on the processing tray using its own weight.
Paper End Retainer Prevents bending by holding the paper trailing edge pressed against the processing stopper.
2. Technical Explanation
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