Patent ID: 9201379
Filing Date: 2015-12-01
Classification: G03G

Abstract:
1. An image forming apparatus comprising: first and second rotatably supported image carriers; an intermediate transfer belt rotatably conveying a toner image transferred thereto; a driving source rotationally driving both the intermediate transfer belt and the second image carrier; a first cleaning blade rubbing the intermediate transfer belt at a first rubbing position; a second cleaning blade rubbing the second image carrier at a second rubbing position; a lubricant supplying portion configured to be able to supply lubricant to the first or second rubbing position; a load detecting portion configured to detect a driving load of the driving source; and a control portion configured to execute a lubricant supplying mode of supplying lubricant to either one of the first and second rubbing positions on a basis of processing contents of a most recent predetermined number of times of image forming operations in a case where the driving load detected by the load detecting portion exceeds a predetermined value, wherein the control portion is configured to execute a full-color mode of forming an image by using the first and second image carriers and a monochrome mode of forming an image by using only the second image carrier, and supplies the lubricant to the second rubbing position in a case where a most recent execution rate of the full-color mode exceeds a predetermined rate in the lubricant supplying mode.