Patent ID: 8422896
Filing Date: 2013-04-16
Classification: G03G

Abstract:
1. An image forming apparatus configured to adjust toner image density, comprising: a photosensitive member; a development unit configured to form a toner image on the photosensitive member; a transfer member onto which the toner image on the photosensitive member is transferred; a sensor configured to detect light from a surface of the transfer member; and a correcting unit configured to correct a toner density in a first area of the transfer member after transfer of a toner image of a test pattern to the first area, the correcting unit operable to correct the toner density on the basis of a difference between an output value of the sensor corresponding to light detection from a second area of the transfer member other than the first area before the transfer of the toner image of the test pattern to the first area and an output value of the sensor corresponding to light detection from the second area after the transfer of the toner image of the test pattern to the first area, wherein, when the toner image of the test pattern is transferred to the first area, the toner image of the test pattern is not transferred to the second area.