Patent ID: 7810809

Claim:
An image forming apparatus comprising: a reference guide disposed in a conveying path for a sheet, and including a reference surface extending in a sheet conveying direction; an oblique-feed mechanism configured to oblique-feed the sheet to abut a side edge of the sheet on the reference surface; a guide surface disposed upstream of the reference guide configured to introduce the conveyed sheet toward the reference guide and the guide surface is oblique so as to come close to a central portion in a width direction orthogonal to the sheet conveying direction of the conveying path as the guide surface extends from upstream to downstream; and a guide portion provided along the guide surface, and disposed so as to come close to the guide surface as the guide portion extends from upstream to downstream, wherein the guide surface is connected with an upper surface and a lower surface to be laterally-facing substantially U-shaped in cross section, and a circular arc surface is formed at a corner portion between the guide surface and the upper surface.