Patent ID: 8655224

Claim:
An image forming apparatus comprising: an image carrier that carries an image; an intermediate transfer unit including a belt-like intermediate transfer body onto which the image formed on the image carrier is transferred, and a plurality of rotation members around which the intermediate transfer body is wound, each of the plurality of rotation members rotating around a rotation axis, the intermediate transfer unit being detachably attached, in a direction of the rotation axis of each of the plurality of rotation members, to an apparatus main body; a secondary transfer unit that transfers the image on the intermediate transfer body onto a recording medium and makes contact with and separates from the intermediate transfer body, the secondary transfer unit being provided at an opposite side of the plurality of rotation members with the intermediate transfer body interposed therebetween, the secondary transfer unit being provided to the apparatus main body; a positioning unit that, before the intermediate transfer unit is secured to the apparatus main body, positions the intermediate transfer unit to the apparatus main body in the secondary transfer unit side at least at two points differently located in the rotation axis direction of the plurality of rotation members; and a securing unit that secures the intermediate transfer unit positioned by the positioning unit to the apparatus main body even in the state where the intermediate transfer body and secondary transfer unit are brought into contact with each other.