An image forming apparatus includes: a developer-image carrier; a conveyance belt that contacts the developer-image carrier and conveys a developer image; and a transfer member contacting the conveyance belt from an opposite side of the developer-image carrier to transfer the developer image onto the conveyance belt. The transfer member includes a main roller body and a movable member including a first end portion fixed to a circumferential surface of the main roller body and a second end portion extending outward in a radial direction of the main oiler body and movable with respect to the first end portion. A rotation axis line of the main roller body is provided downstream of the rotation axis line of the developer-image carrier in a movement direction of the conveyance belt such that the main roller body contacts the developer-image carrier while interposing the conveyance belt therebetween.