Patent ID: 7420583
Filing Date: 2008-09-02
Classification: H04N

Abstract:
1. An image forming apparatus comprising: a plurality of image forming units that form images; a plurality of scanners that form images in said plurality of image forming units respectively; a controller that has a first mode in which said plurality of scanners are driven in synchronism with each other to carry out image formation by said plurality of image forming units, and a second mode in which one of said plurality of scanners is driven to carry out image formation by one of said image forming units, said controller causing, in the case where the image formation in the second mode is switched to the image formation in the first mode, while the image formation is being carried out in the second mode, all the scanners not being used for the image formation in the second mode to start to be driven and then switching the image formation to the first mode after the image formation in the second mode is completed.