Canon J1 Service Manual page 36

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Technology > Saddle Stitcher Unit > Basic Operation (Saddle Stitcher Unit) > Feeding the Stack
■ Stitching
When all sheets have been output, the two stitchers stitch the stack. The stitchers are
positioned so that they face the center of a stack.
The two stitchers are not operated simultaneously so as to prevent the paper from wrinkling
between two staples and to limit the load on the power supply.
If only one sheet of paper arrives from the host machine, stitching does not take place and
the sequence goes to the next operation (stack feeding).
Stitcher
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Technology > Saddle Stitcher Unit > Basic Operation (Saddle Stitcher Unit) > Feeding the Stack
Staple
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■ Feeding the Stack
The unit folds the stitched stack of sheets, and then feeds it to the point of delivery.
This point is where the center of the stack, i.e., stapling position, matches the height of the
paper pushing plate and the paper folding roller nip.
The stack is moved forward by operating the paper positioning plate.
When the plate is operated, the guide plate which has been covering the paper folding rollers,
also moves down so that the paper folding rollers directly face the stack.
Paper folding roller
Guide plate
Paper positioning plate
home position sensor(PI7)
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Paper pushing guide
Paper positioning plate
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