Patent ID: 8090294

Claim:
An image forming apparatus, comprising: an image bearing body; a developer apparatus which has a mutually opposing first side face and second side face, a developing roller disposed inside the developer apparatus and supplying a developer to the image bearing body; a frame which has a first wall surface opposing the first side face and a second wall surface opposing the second side face, and on which the developer apparatus is removably installed; a first fulcrum section and a second fulcrum section provided so as to project respectively on the first side face and the second side face, the first fulcrum section and the second fulcrum section being disposed coaxially; a first installation groove and a second installation groove which are provided respectively on the first wall surface and the second wall surface, the upper ends of which are open and into which the first fulcrum section and the second fulcrum section are respectively fitted; a first supporting structure section and a second supporting structure section which support the first fulcrum section and the second fulcrum section that are fitted respectively into the first installation groove and the second installation groove; and a pivoting apparatus which pivots the developer apparatus about the first fulcrum section and the second fulcrum section and thereby changes the posture of the developer apparatus between a first state where transfer of developer is possible between the developing roller and the image bearing body, and a second state where transfer of developer therebetween is not possible.