The present invention has as its object to provide an image forming apparatus which can well perform both-side image forming for forming an image of high gloss on one side of a recording sheet and forming an image of non-gloss or low gloss on the other side thereof, and for this purpose, the image forming apparatus according to the present invention has: an image forming unit for forming a toner image on a recording material; an image heating unit for heating the toner image on the recording material in a nip portion, the image heating unit having a rotary member contacting with the front surface of the recording material in the nip portion, and a belt contacting with the rear surface of the recording material in the nip portion; a unit for reversing the front surface and rear surface of the recording material heated in the nip portion, and reintroducing the recording material into the nip portion; and a cooling unit for cooling the recording material after reintroduced moving while keeping contact with the belt before the recording material is separated from the belt.