Patent ID: 7471917

Claim:
An image forming apparatus comprising: a conveyance unit including a belt member, which is stretched across at least a drive roller and a driven roller and conveys a recording medium, and a casing that axially supports the drive roller and the driven roller; a body frame disposed with an image carrier for transferring an image to the recording medium, the image being formed on the image carrier by a development unit; and a cover to which the conveyance unit is attached, is pivotably attached to the body frame, and opens/closes off the image carrier, wherein a first regulating portion is formed on the body frame, an annular member placed on a shaft portion of the drive roller abutting against the first regulating portion when the cover pivots toward the body frame to close off the image carrier, and a second regulating portion is formed on the body frame, the second regulating portion engages an engagement portion formed in the casing in a direction orthogonal to an axial direction of the drive roller.