Patent ID: 9612557
Date: 2017-04-04
CPC Classifications: G03G

Claim:
1. An image forming apparatus, comprising: a first image forming unit for forming an image by using black toner; a second image forming unit for forming an image by using color toner; an intermediate transfer member on which an image formed by the first image forming unit and the second image forming unit is transferred; and a controller configured to control the first image forming unit and the second image forming unit, wherein the first image forming unit and the second image forming unit each respectively include: wherein the controller is capable of performing the following modes: wherein during an image forming job in which image forming is performed on a plurality of recording materials, in a case where the monochrome image formation is performed after the color image formation in the color mode, the controller determines whether the first monochrome mode or the second monochrome mode is performed based on an image forming speed which is set when the monochrome image formation is performed.