Patent ID: 8351806
Filing Date: 2013-01-08
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a developer image carrier movably disposed; a developer image forming device configured to form a developer image; a detector disposed facing the developer image carrier and configured to detect a density of the developer image attached on the developer image carrier; a controller configured to control an operation of forming the developer image by the developer image forming device; an image forming unit configured to control the developer image forming device to form a density detection pattern comprised of the developer image, the density detection pattern including the same developer image at at least a first point and a second point with a predetermined distance between the first point and the second point; a density detector configured to obtain a first point density and a second point density of the density detection pattern; and a calculator configured to calculate a difference between the first point density and the second point density of the density detection pattern.