| 摘要 |
PROBLEM TO BE SOLVED: To provide a sheet post-processing device which can stabilize the landing state of a sheet to a loading tray, and contribute to improvement in sheet alignment accuracy and post-processing accuracy.SOLUTION: An image formation system 2 comprises an image formation device 4 and a sheet post-processing device 6. The sheet post-processing device 6 includes a staple tray 44, and a sheet on which an image is formed by the image formation device 4 is conveyed by an intermediate conveyance roller pair 40 onto the staple tray 44. A beating roller 46 is arranged on the upper part of the staple tray 44, and rotated in accordance with the conveyance timing of the sheet, and a rotation roller is brought into contact with the sheet upper surface. In the rotation roller, a pre-loading rotation speed when it is brought into contact with the sheet in the state where the rear end side of the sheet does not land on the loading surface is set to be slower than a post-loading rotation speed when the sheet is conveyed to a rear end stopper 48 in the state where the sheet is loaded in the staple tray 44.SELECTED DRAWING: Figure 1 |
