Patent ID: 8559845

Claim:
An image forming apparatus comprising an image forming apparatus body and a tandem type photosensitive unit slidable to a drawn-out position and a mounted position with respect to the image forming apparatus body, wherein the tandem type photosensitive unit includes: a frame; a plurality of photosensitive bodies supported by the frame in a state parallelly arranged in a prescribed direction so that electrostatic latent images are formed thereon; a plurality of developer cartridges, including developer carriers opposed to the photosensitive bodies, detachably mountable on the frame; and a pressing portion provided on the frame for pressing each of the developer cartridges so that the developer carrier thereof is directed toward a corresponding one of photosensitive bodies, each of the developer cartridges is pivoted to be movable to an imaging position pressed by the pressing portion and a detached position released from the pressing by the pressing portion and detachable from the frame in the frame, and the image forming apparatus body is provided with an abutting portion abutting the developer cartridge located on the detached position thereby pivoting the developer cartridge and moving the same to the imaging position when the tandem type photosensitive unit is mounted on the image forming apparatus body.