| 摘要 |
Provided are a sheet processing apparatus and an image forming apparatus. The sheet processing apparatus comprises a stack tray to load a sheet bundle, a stapler to staple the sheet bundle loaded on the stack tray, a stapler-moving device to move the stapler, and aligning members to move the sheet bundle; in which the stapler is moved to the next stapling position in a way that the moving direction of the stapler directed by the stapler-moving device and the moving direction of the sheet bundle directed by the aligning members are opposite each other; and when the number of sheet bundles or the weight of the sheet bundle is less than a predetermined value, the moving velocity of the sheet bundle by the adjusting members is made to be higher than that when the number of sheet bundles is equal to or higher than the predetermined value.
|
