Patent ID: 8666283

Claim:
An image forming apparatus configured to form an image on a recording sheet comprising: a main body; a belt unit including a first roller and a second roller, an endless belt extending between the first and second rollers, and a frame supporting the first roller and the second roller, wherein the first and second rollers are spaced apart in a belt extending direction where the belt extends between the first and second rollers; a pressing member configured to press the belt unit to exert a pressing force in a pressing direction, the pressing force having a component force applied in a specific direction parallel to a surface of the belt, and the specific direction crossing both the belt extending direction and an axial direction of the first roller; a first positioning portion disposed in the main body; a second positioning portion disposed in the belt unit, the second positioning portion being configured to contact the first positioning portion to allow the belt unit to be positioned in the main body; and a pressed portion including an inclined surface that is inclined with respect to both the belt extending direction and the axial direction, wherein the pressing member is configured to press the belt unit such that the second positioning portion maintains contact with the first positioning portion when the belt unit is positioned in the main body; and wherein the pressing member presses the inclined surface when the belt unit is attached to the main body.