Patent ID: 7164873
Filing Date: 2007-01-16
Classification: G03G

Abstract:
1. An image forming apparatus, which has a plurality of image forming stations each comprising an image forming unit for forming an image, superimposes images of a plurality of colors formed in the plurality of image forming stations on a recording medium, said apparatus operable in a first image forming mode for forming images of a plurality of colors by at least two image forming stations from among the plurality of image forming stations, and a second image forming mode for forming monochromatic images by a single image forming station from among the plurality of image forming stations, comprising: a controller which controls formation of the monochromatic images by partially stopping the driving of the image forming units in the image forming stations except for the single image forming station used in the second image forming mode in accordance with switching to the second image forming mode during image formation in the first image forming mode.