| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet post-processing device capable of aligning a Z-folding sheet that is folded obliquely and capable of correctly aligning a sheet to which folding processing is not performed.SOLUTION: A sheet post-processing device includes: a first conveying path 210 and a third conveying path 230 for conveying a sheet P that includes a Z-folding sheet; a staple tray 251 on which the conveyed sheet P is disposed; jogger fences 254, 254 for aligning a width direction position of the sheet by pushing both side ends of the sheet P on the staple tray 251; a tapping roller 252 for pushing the sheet P against the staple tray 251; and drive control means for pushing the sheet P against the staple tray 251 by the tapping roller 252 when the jogger fences 254, 254 move to a sheet width aligning position and retracting the jogger fences 254, 254 to respective initial positions in a state of pushing the sheet P. |
