Ricoh DDP92 Maintenance Manual page 176

When the stapling-and-folding stopper unit has moved into the predetermined posi-
tion, it is set in place by M17 (stapling-and-folding stopper release).
Figure 7-28. Operation of the flat-stapling and stapling-and-folding stopper
For stapling-and-folding operation: Paper is transported up to the stapling-and-folding
stopper for stapling. When stapling is completed, M17 releases the stopper and the
paper set moves to the folding unit. Setting and releasing of the stopper is repeated
for each paper set.
Return of the staple paper-end stopper to home position resets the flat-stapling stop-
per.
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Theory of Operation
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