Patent ID: 7734206
Filing Date: 2010-06-08
Classification: G03G

Abstract:
1. An image forming apparatus, comprising: an image bearing member on which an electrostatic image is formed; a development device which allows a developer containing a toner and a carrier to be supported on a developer support, whereby the electrostatic image is developed to form a toner image; an image density detection device which detects a density of the image formed with the toner; a supply device which supplies the toner to the development device based on a result of detection by the image density detection device; a cleaning device provided in contact with the image bearing member to clean a surface of the image bearing member; a driving device which drives the image bearing member; a driving torque detection device which detects a driving torque in a case of driving the image bearing member; and a controller which controls a toner density of the developer in the development device by the supply device in response to a value of the driving torque so as to suppress a transition of the carrier to the image bearing member.