When all the paper has been output, the two stitchers staple the stack. The stitchers face the center
of a stack and alternate to prevent the paper from wrinkling and to limit the load on the power supply.
If only one sheet arrives, stitching does not take place and the next operation (stack feeding) occurs.
Figure 1-132 Stitching the stack
Stitcher (staplers)
Staple
Paper pushing guide
The booklet maker unit folds the stitched stack, and then feeds it to where the stapling position
matches the height of the paper-pushing plate and the paper-folding roller nip. The paper-positioning
plate moves the stack forward and the guide plate descends so that the paper-folding rollers directly
face the stack.
176 Chapter 1 Theory of operation ENWW
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