Patent ID: 8042804
Filing Date: 2011-10-25
Classification: B65H

Abstract:
1. An image forming apparatus, comprising: an image forming portion that forms an image on a sheet; a fixing portion that thermally fixes a toner image formed by the image forming portion to the sheet; a first roller; a second roller that comes into pressure contact with the first roller and contacts a surface of the sheet having the image fixed thereon by the fixing portion, wherein an outer circumference surface of the first roller and an outer circumference surface of the second roller nip the sheet and convey the sheet; and a plurality of ribs that are formed on the outer circumference surface of the second roller and disposed so that each rib extends in a circumferential direction, the plurality of ribs arranged in an axial direction of the second roller, wherein, among the plurality of ribs, ribs disposed at both ends of the second roller in the axial direction have a diameter that is smaller than the remaining ribs of the plurality of ribs.