By providing a rib formed to be inclined with respect to the conveyance direction on a guide member provided at the upstream side of the conveyance section where a contact member that cools rapidly the sheet subjected to fixing processing is provided, a problem of the occurrence of uneven gloss on the surface of a toner image by contact between a sheet and a guide member or a conveyance roller in a conveyance section that conveys the sheet subjected to fixing processing is solved.