Patent ID: 8297610

Claim:
An image forming apparatus, comprising: an image forming unit that forms images on sheets; a stack portion on which the sheets with the images formed by the image forming unit are stacked as a bundle of the sheets such that first end parts of the sheets are aligned; a first binding unit that binds the first end parts of the bundle of sheets stacked on the stack portion; a second binding unit that binds the first end parts of the bundle of sheets stacked on the stack portion, by a binding method that requires a binding region larger than a binding region of the first binding unit; and a distance reducing unit that changes a position of the bundle of sheets when the bundle of sheets is bound by the first binding unit, from a position of the bundle of sheets when the bundle of sheets is bound by the second binding unit, and reduces a distance between a part bound by the second binding unit and the first end parts as compared with a distance between a part bound by the first binding unit and the first end parts.