Patent ID: 9122186
Filing Date: 2015-09-01
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: an endless belt that has a circumferential surface, to which a toner image is to be transferred, and is driven and rotated, the belt having opposite first and second end sides that are spaced apart in a belt width direction that is perpendicular to a direction in which the belt is driven and rotated; an image forming unit that is arranged to face the belt and forms the toner image and transfers the toner image to the belt; a plurality of rollers that include a drive roller for driving and rotating the belt and a belt meandering correction roller for correcting meandering in the belt width direction and on which the belt is mounted; a roller position adjusting mechanism that corrects the meandering of the belt by adjusting a position of the belt meandering correction roller; first and second density sensors arranged respectively in proximity to the first and second end sides of the belt, each of the first and second density sensors having a detection area capable of detecting the density of the toner image and each being fixedly arranged such that the detection area faces the circumferential surface of the belt; and a control unit that controls a correcting operation of correcting the meandering of the belt by the roller position adjusting mechanism; wherein, prior to the correcting operation, the control unit: