| 摘要 |
PROBLEM TO BE SOLVED: To provide a recording material processing device or the like capable of realizing a size reduction.SOLUTION: A first post-processing device 40 including: a sheet accumulation unit 441; a folding knife 447 in which blades for moving portions where folds of a bundle of accumulated sheets are to be formed in a sheet transport direction are intermittently arranged; a pair of an upper folding roller 451a and a lower folding roller 451b arranged intermittently for the blades to enter between the blades when pressing the portions where the folds are to be formed, and intermittently forming the folds by putting the sheet bundle pressed by the blades therebetween; transport rollers 449 located downstream of the upper folding roller 451a and the lower folding roller 451b in the sheet transport direction, arranged intermittently at positions corresponding to positions at which the blades of the folding knife 447 are arranged, and further forming the folds by putting portions between the folds formed by the upper folding roller 451a and the lower folding roller 451b therebetween. |
