| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a punching failure caused by the swell of a middle-folded paper sheaf in the case of applying post-processing for twofold middle-folding and punching to the paper sheaf saddle-stitched by saddle stitching. <P>SOLUTION: A post-processing device applies saddle stitching to the paper sheaf S which is a stack of paper Si delivered from an image forming device body 10, and applies middle folding and punching to the saddle-stitched paper sheaf S for delivery. In this case, punching is performed by a punching unit U provided with a punching blade device 833 and additionally provided with a pair of pressure rollers 830L, 830R movable along a fold part Sc of the paper sheaf S folded in two by a middle folding means, and capable of pressure-reinforcing the fold part Sc when moving. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
