Photosensitive unit and image forming apparatus

摘要

A photosensitive unit configured to be mounted in a main frame of an image forming apparatus along a prescribed direction. The image forming apparatus includes a pressure unit, a first positioning portion, and a second positioning portion. The photosensitive unit includes a plurality of photosensitive drums, a pair of metal plates, and a resin frame. The pair of metal plates is spaced away from each other in the axial direction of each photosensitive drum and supports the plurality of photosensitive drums. The pair of metal plates is configured to be positioned on the second positioning portion. The resin frame supports the pair of metal plates and is configured to support a plurality of developer cartridges. The resin frame is configured to be positioned on the first positioning portion. The pair of metal plates is pressed against the second positioning portion to be positioned with respect to the main frame when the resin frame is pressed by the pressure unit in the prescribed direction.