Patent ID: 8146916

Claim:
An image forming apparatus has an image forming unit configured to form an image on a sheet, the image forming apparatus comprising: a conveying path configured to guide the sheet; a reference surface, provided on the conveying path, to which a side edge of the sheet abuts; and a first diagonal feed unit and a second diagonal feed unit which diagonally convey the sheet so as to abut the side edge of the sheet to the reference surface for correcting the skew of sheet; wherein the first diagonal feed unit and the second diagonal feed unit are arranged in a sheet conveying direction, and wherein, in a case in which a length of the sheet conveyed is longer than a predetermined length, a pressure of a nip portion of the second diagonal feed unit is reduced or canceled and the first diagonal feed unit diagonally conveys the sheet, and wherein the first diagonal feed unit conveys the sheet without reducing or cancelling a pressure of a nip portion thereof, regardless of the length of the sheet conveyed.