Image forming apparatus

摘要

An image forming apparatus includes: an endless belt having a surface on which a first image and a second image are formed; a drive roller that drives the belt; a tension roller that supports the belt on a downstream side of the drive roller; a first image forming unit disposed at a first position on an upstream side of the tension roller; a second image forming unit disposed at a second position on an upstream side of the first image forming unit; and a controller that obtains first and second image data, corrects the first and second image data so as to compensate a distortion of the second image occurring during conveyance of the second image from the second position to the first position, and causes the first and second image forming units to form the first and second images based on the corrected first and second image data.

主权项

1. An image forming apparatus comprising:
an endless belt having a surface on which a first image and a second image are sequentially formed in a superposed manner, the first image and the second image having different colors, the belt conveying the first image and the second image in a conveying direction; a drive roller that supports the belt and drives the belt in the conveying direction; a tension roller that supports the belt on a downstream side of the drive roller in the conveying direction so as to stretch the belt together with the drive roller; a first image forming unit that is disposed to face the surface of the belt at a first position on an upstream side of the tension roller in the conveying direction and forms the first image; a second image forming unit that is disposed to face the surface of the belt at a second position on an upstream side of the first image forming unit in the conveying direction and forms the second image; and a controller that obtains first image data for forming the first image and second image data for forming the second image, corrects the obtained first and second image data so as to compensate a distortion of the second image occurring during conveyance of the second image from the second position to the first position, and causes the first and second image forming units to form the first and second images based on the corrected first and second image data.