Patent ID: 9141042
Filing Date: 2015-09-22
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: a first image bearing member on which an electrostatic latent image is formed; a first developing device for developing an electrostatic latent image formed on the first image bearing member; a second image bearing member on which an electrostatic latent image is formed; a second developing device for developing an electrostatic latent image formed on the second image bearing member; an intermediate transfer member which is rotatable and is configured to form a first primary transfer portion with the first image bearing member and a second primary transfer portion with the second image bearing member; and a control unit that is configured to execute an image forming mode, wherein in a case where the control unit receives a print signal for transferring a toner image onto a recording material, the control unit controls a timing of forming a toner patch so that the toner patch developed by the second developing device is provided to the second primary transfer portion between a timing when the control unit receives the print signal and a timing when the toner image developed on the first image bearing member is primarily transferred to the intermediate transfer member at the first primary transfer portion.