Patent ID: 8412056

Claim:
An image forming apparatus, comprising: a transfer belt that conveys a transfer material; a photosensitive body that catches the transfer material between the photosensitive body and the transfer belt and transfers a toner image to the transfer material, wherein the transfer belt is driven in conjunction with an opening action of a front cover, and the photosensitive body is separated from the transfer belt in conjunction with the opening action of the front cover; a first gear and a second gear; and a first rotation roller that suspends the transfer belt in a tensioned state and a second rotation roller, wherein the first gear is attached to the first rotation roller, the second gear is coupled to the first gear, wherein the opening action of the front cover causes the rotation of the second gear which rotates the first gear, the rotation of the first gear then rotates the first rotation roller, and the rotation of the first rotation roller then moves the transfer belt, and wherein at least one of the first gear and the second gear is a one-way gear.