Patent ID: 8831444

Claim:
A color image forming apparatus including photosensitive members, charging units configured to charge the photosensitive members, light beam emission units configured to form an electrostatic latent image on the photosensitive member charged by being irradiated with light beam, and developing units configured to visualize a toner image by applying toner to the electrostatic latent image, corresponding to a plurality of colors, respectively, the color image forming apparatus comprising: an acquisition unit configured to acquire information of an integrated number of rotations of each of the plurality of photosensitive members corresponding to the plurality of colors; and a control unit configured to cause each of the plurality of the light beam emission units to execute normal light beam emission for visualizing the toner image onto an area where the toner image is to be visualized on the charged photosensitive member, and cause the plurality of light beam emission units to execute weak light beam emission onto a background area where the toner image is not to be visualized on the charged photosensitive member, wherein the control unit changes the amount of light for weak light beam emission by each of the plurality of the light beam emission units based on information of the integrated number of rotations of each of the photosensitive member acquired by the acquisition unit.