Patent ID: 7751106
Filing Date: 2010-07-06
Classification: G02B,G03G,Y10S

Abstract:
1. An image forming apparatus for forming an image with toners of a plurality of colors, comprising: a first image forming unit including: a second image forming unit including: a detection unit configured to detect a remaining amount of the toner of the first color held by the second developing unit; and a control unit configured to determine whether or not it is possible to form an image with the toner of the first color based on a detection result of the detection unit, to control the first rotatable polygonal mirror and the second rotatable polygonal mirror so that the first and second rotatable polygonal mirrors rotate at a predetermined rotation speed before the first light source and the second light source emit the laser beams based on image data, in a case where it is determined that it is possible to form an image with the toner of the first color, and to control the second rotatable polygonal mirror so that the second rotatable polygonal mirror rotates at the predetermined rotation speed before the second light source emits the laser beam based on the image data and not to control a rotation speed of the first rotatable polygonal mirror, in a case that it is determined that it is not possible to form an image with the toner of the first color.