Patent ID: 7410156

Claim:
An image forming apparatus comprising: an image forming portion which forms an image on a sheet; and a sheet processing apparatus which is provided above the image forming portion and which performs a processing on the sheet on which the image has been formed by the image forming portion, the sheet processing apparatus comprising: a stacking portion on which sheets are stacked; a conveying portion which conveys a sheet or a sheet bundle stacked on the stacking portion; a curved guide path which is arranged downstream of the stacking portion in a sheet conveying direction and which guides the sheet or the sheet bundle conveyed by the conveying portion while curving the sheet or the sheet bundle downward; and a folding device which is arranged on the curved guide path and which folds the sheet or the sheet bundle, wherein a sheet stacking surface of the stacking portion is set to be higher on a downstream side than on an upstream side in the sheet conveying direction, and wherein the curved guide path connects to an extended portion, arranged downstream of the curved guide path, which extends between the stacking portion and the image forming portion.