To provide a compact image forming apparatus.

An intermediate transfer body 64 is provided to be inclined such that a secondary transfer position on the intermediate transfer body 64 is made lower than the heating roll 92 of a fixing device 90 and an anti-secondary transfer position is made higher than the heating roll 92 of the fixing device 90, and an intermediate transfer cleaner 82 is provided to the anti-secondary transfer position. The image forming unit 96 is constituted to be curved along the curved surface of a rotary developing device 38, and is arranged between the rotary developing device 38 and the fixing device 90.