Patent ID: 7826756
Filing Date: 2010-11-02
Classification: G03G

Abstract:
1. A method for controlling an image forming apparatus, the image forming apparatus including a photosensitive medium configured to support an electrostatic latent image thereon and a developing unit configured to supply toner to the photosensitive medium to develop the electrostatic latent image into a toner image, comprising: developing an image pattern into a first toner image by applying a first developing bias voltage that consists of a direct current (DC) voltage to the developing unit; developing the image pattern into a second toner image by applying a second developing bias voltage that comprises an alternating current (AC) voltage to the developing unit; sensing a first image pattern density associated with the first toner image; sensing a second image pattern density associated with the second toner image; and controlling a level of an image pattern density of the image forming apparatus based on the first image pattern density and the second image pattern density.