主权项 |
1. An image forming apparatus comprising:
an image forming unit that forms an image on a recording material; an endless belt member that is rotatably provided and that has a curved portion; a pressure member that is provided at an outer peripheral surface of the belt member so as to contact the outer peripheral surface of the belt member, the pressure member applying pressure to the belt member; a pressing member that presses the belt member from an inner side of the belt member towards the pressure member; and an adjusting section that adjusts a position of an end portion of a nip part at a downstream side in a movement direction of the recording material and a position of the curved portion of the belt member by moving or deforming the pressing member, the nip part being formed by the belt member and the pressure member, the curved portion of the belt member being formed by an end portion of the pressing member at a downstream side in the movement direction of the recording material, wherein the adjusting section adjusts by moving the pressing member towards an upstream side or the downstream side in the movement direction of the recording material, wherein the position of the curved portion of the belt member is located further downstream, in a movement direction of the recording material, than the position of the end portion of the nip part when the adjusting section adjusts by moving the pressing member towards the downstream side in the movement direction of the recording material, and wherein the adjusting section adjusts by causing a portion of the pressing member at the downstream side in the movement direction of the recording material to move away from the belt member or to come into contact with the belt member. |