An image forming apparatus and a cartridge for use therewith are provided. The image forming apparatus includes a main body; a cartridge that stores a developer; a supporting member that receives the cartridge; and a side cover that covers the supporting member, where the supporting member is rotatably supported by the main body. The supporting member pivots between a reception position at which the cartridge is received into the main body and an exposure position at which the cartridge is exposed from the main body.