Patent ID: 8398079
Filing Date: 2013-03-19
Classification: B65H

Abstract:
1. An image forming apparatus which has an image forming portion, a sheet conveying device conveying a sheet to the image forming portion, and a sheet processing device processing the sheet on which an image is formed by the image forming portion, the image forming apparatus comprising: a skew feed correcting portion which is provided in the sheet conveying device, and which corrects skew feed of the sheet while turning the sheet by at least one of a first skew feed correcting operation for correcting the skew feed based on one edge of the sheet crossing a sheet conveying direction, and a second skew feed correcting operation for correcting the skew feed based on a side edge of the sheet along the sheet conveying direction; a sheet processing portion which is provided in the sheet processing device, and which performs, when processing the sheet, at least one of a first alignment operation based on a position of the one edge of the sheet, and a second alignment operation based on a position of the side edge of the sheet; and a control portion which controls the skew feed correcting portion so that the first skew feed correcting operation is performed in a case where the sheet processing portion performs the first alignment operation, and that the second skew feed correcting operation is performed in a case where the sheet processing portion performs the second alignment operation.