Patent ID: 8027604
Filing Date: 2011-09-27
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a data conversion mechanism converting received image data into printing data; a charging mechanism charging an image carrier; an exposure mechanism forming an electrostatic latent image on the image carrier charged by the charging mechanism based on the printing data; a developer supply mechanism supplying a developer to the image carrier having the electrostatic latent image with electrostatic force; an image density calculation mechanism calculating an image density of an image having a predetermined number of lines in the printing data; a determination mechanism determining whether a voltage to be applied to the developer supply mechanism is changed based on a calculation result calculated by the image density calculation mechanism; and a voltage change mechanism changing the voltage to be applied to the developer supply mechanism based on a determination result determined by the determination mechanism, wherein the image density calculation mechanism calculates the image density of a region of the image, the region of the image being shifted in a sub-scanning direction by a prescribed line number while maintaining the predetermined number of lines.