| 摘要 |
PROBLEM TO BE SOLVED: To simply and properly perform the binding processing of a sheet bundle by small power even if the sheet bundle becomes thick due to the stacking of a large number of sheets, even if the sheet bundle is formed by stacking hard sheets or the like, and even if the rigidity of a binding member is low, when binding the sheet bundle formed by stacking a plurality of sheets by using the binding member.SOLUTION: In a sheet post-processing device 20 having a binding device 21 for performing the binding processing of a sheet bundle Sa formed by stacking a plurality of sheets by using a binding member T, a pre-hole processing device 21 for performing pre-hole processing for forming a plurality of small-diameter pre-processing holes h is arranged in a region including a potion for performing the binding processing to a sheet before applied with the binding processing. |
