To stably stack a paper bundle subjected to binding processing.
There is provided a post-processing device which comprises: a stapleless binding mechanism which forms a slit on paper bundles B1 and B2 and a tongue portion in which one end part leaves a part continuing to the paper bundles B1 and B2 and binds the tongue portion by inserting the other end part of a folded tongue portion into the slit; a stacking part 70 for stacking the bound paper bundles B1 and B2; and a tamper which moves the paper bundles B1 and B2 in a direction crossing a conveyance direction of the paper bundles B1 and B2 so that the paper bundles B1 and B2 stacked on the stacking part 70 are not overlapped with each other. Further, the stapleless binding mechanism has a drive mechanism for changing a binding angle which is an angle where the stapleless binding mechanism applies binding processing to the paper bundles B1 and B2, and the tamper changes distances H1, H2, and H3 for moving the paper bundles B1 and B2 in a direction crossing a conveyance direction of the paper bundles B1 and B2 according to an aspect of the tongue portion which changes depending on the binding angle.
SARUGI TAKAAKI
| JP2011256008A | 2011-12-22 | |||
| JP2011207563A | 2011-10-20 |
Fumio Ogata
Takehiko Sunada