Image forming apparatus

摘要

A fiber member and a transfer belt are movable into contact with or away from each other. In an initial contact state in which an image carrying member and the transfer belt are separated and the transfer belt and the fiber member start touching, an upstream side of the fiber member in the movement direction of the transfer belt touches the transfer belt before a downstream side of the fiber member touches the belt. In a contact state in which the image carrying member and the transfer belt are in contact and the transfer belt and the transfer device are in contact, a holding surface is inclined with respect to an opposing portion of an inner peripheral surface of the transfer belt in such a manner that a distance between the holding surface and the opposing portion increases from the downstream side to the upstream side in the movement direction.

主权项

1. An image forming apparatus, comprising:
an image carrying member that carries a toner image; a transfer belt that is endless and movable while being in contact with the image carrying member; and a transfer device that transfers a toner image from the image carrying member to the transfer belt, the transfer device including a fiber member including a plurality of conductive fiber threads and a holding member that holds the fiber member, the fiber member coming into contact with an inner peripheral surface of the transfer belt while being held by a holding surface of the holding member, wherein the holding member includes a rotation shaft and is rotatable around the rotation shaft, wherein the rotation shaft is located inward of the inner peripheral surface of the transfer belt and upstream from the fiber member in the movement direction of the transfer belt, and wherein the holding surface is inclined with respect to an opposing portion of the inner peripheral surface of the transfer belt in such a manner that a distance between the holding surface and the opposing portion of the inner peripheral surface of the transfer belt increases from a downstream side to an upstream side in the movement direction of the transfer belt in a contact state, in which the image carrying member and the transfer belt are in contact with each other and the transfer belt and the transfer device are in contact with each other.