To provide an image forming apparatus capable of suppressing components in a housing from contacting latent image forming means in taking out the components from an opening of the housing even when a holding body cannot swing beyond 90° with respect to a latent image carrier arrangement direction.

A middle cover 40 that is a holding body for holding writing heads 70Y, 70M, 70C, and 70K that are a plurality of latent image forming means is configured such that when an image forming apparatus with an opening of a housing 90 is at an opening position to open the opening is seen from a latent image carrier axial direction, at least a writing head 70K in color K arranged at a position closest to a swing fulcrum of the middle cover 40 is at a position on one end side of the housing 90 with respect to a line L1 connecting other writing heads 70Y, 70M, and 70C.