Patent ID: 7813669

Claim:
An image forming apparatus comprising: an image carrier unit that includes an image carrier and a carrier supporting member that supports the image carrier; a positioning unit that is configured to open and close and to be attached to and detached from the image forming apparatus, and positions the image carrier unit via the carrier supporting member; a positioning member that positions the positioning unit when the positioning unit is closed; and a positioned member that is located on the positioning unit and engages with the positioning member, wherein the positioning unit includes a holding member that includes an opening having a holding portion to hold the carrier supporting member when the positioning unit is closed and positioned in a predetermined position; a pressing unit that presses and positions the carrier supporting member at the holding portion; a cover that opposes the holding member via the pressing unit; and an operating unit that is used for operating the pressing unit and located on the cover at a position corresponding to be substantially at the center of the holding member in a longitudinal direction, and an image formed on the image carrier is transferred onto a recording medium directly or indirectly.