An image forming apparatus including: a frame member including a first electrode and a replacement unit including a second electrode that electrically contacts the first electrode. The replacement unit is movable relative to the frame member along a moving direction. The moving direction includes a first direction and a second direction that intersects the first direction. The first electrode is formed by a wire and includes a contact portion. The contact portion, which is bent along an intersection plane, is movable in a third direction that is perpendicular to the first direction and the second direction. A direction of the contact portion is set so that the intersection plane intersects with a first plane and a second plane at angles smaller than an intersection angle formed by the intersection of the first plane and the second plane.