Patent ID: 7917072
Filing Date: 2011-03-29
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image carrier that holds an image; a transfer belt that is rotated while a recording medium is sandwiched between the transfer belt and the image carrier, and transfers the image held by the image carrier to the recording medium, the transfer belt including a first end side and a second end side; a first roll member that holds the transfer belt and brings the transfer belt into contact with the image carrier; a second roll member that holds the transfer belt together with the first roll member; a third roll member that holds the transfer belt together with the first roll member and the second roll member; and a moving member that is in contact with the second roll member and the third roll member, that makes the second roll member movable so as to make a center distance between the first roll member and the second roll member larger on the first end side of the transfer belt than the center distance on the second end side by changing a position where the moving member and the second roll member contact, and makes the third roll member movable so as to make a center distance between the first roll member and the third roll member smaller on the first end side than the center distance on the second end side by changing a position where the moving member and the third roll member contact.