Patent ID: 8874015

Claim:
An image forming apparatus comprising: an image bearing member configured to bear a toner image; a movable intermediate transfer belt configured to bear the toner image transferred thereto from the image bearing member; and a transfer unit configured to transfer the toner image from the intermediate transfer belt to a recording material, wherein the transfer unit comprises: a first transfer inner roller configured to support the intermediate transfer belt from an inner peripheral surface and configured to transfer the toner image to the recording material from the intermediate transfer belt; a second transfer inner roller arranged on the downstream side of the first transfer inner roller in the moving direction of the intermediate transfer belt and configured to support the intermediate transfer belt from the inner peripheral surface and configured to transfer the toner image to the recording material from the intermediate transfer belt; a first transfer outer roller arranged so as to be deviated downstream from the first transfer inner roller in the moving direction of the intermediate transfer belt and configured to form a first transfer portion by urging the first transfer inner roller from a side of an outer periphery of the intermediate transfer belt and to come into contact with the recording material and transfer the toner image to the recording material from the intermediate transfer belt; and a second transfer outer roller arranged so as to be deviated upstream from the second transfer inner roller in the moving direction of the intermediate transfer belt and configured to form a second transfer portion by urging the second transfer inner roller from the side of the outer periphery of the intermediate transfer belt and to come into contact with the recording material and transfer the toner image to the recording material from the intermediate transfer belt, wherein a first angle formed by an extension line of the intermediate transfer belt between the first transfer portion and the second transfer portion and a first line perpendicular to a straight line connecting a rotation center of the first transfer inner roller and a rotation center of the first transfer outer roller is smaller than a second angle formed by an extension line of the intermediate transfer belt between the first transfer portion and the second transfer portion and a second line perpendicular to a straight line connecting a rotation center of the second transfer inner roller and a rotation center of the second transfer outer roller.