To provide an image forming apparatus where a plurality of photosensitive materials are stacked securely one over another.

The image forming apparatus 10 according to the present invention has a discharge opening 76 where photosensitive materials S can be discharged in parallel, a conveyor 98 which has a plurality of discharge rollers 78 abutting against and energizing a photosensitive material S to fly and discharge the photosensitive material S from the discharge opening 76 and a conveying belt 96 where the photosensitive material S flown from the discharge opening 76 lands, and conveys the landed photosensitive material S in a direction 102 orthogonal to the flying direction 100, and a tray 104 where a photosensitive material S falling from an end 108 of the conveyor belt 96 lands. The plurality of discharge rollers are so arranged that at least two discharge rollers abut against the photosensitive material S.