Patent ID: 8655207
Filing Date: 2014-02-18
Classification: G03G

Abstract:
1. An image forming apparatus comprising: a photosensitive member, on which an electrostatic latent image is to be formed; a developing roller which is configured to carry developer and contact the photosensitive member; and a control device which is configured to apply, to the developing roller, a developing bias having a direct current component and an alternating current component overlapped with each other so as to supply developer from the developing roller to the photosensitive member, wherein the control device is configured to execute either one of a first mode in which an amplitude of the alternating current component of the developing bias is set with a first set value and a second mode in which the amplitude of the alternating current component of the developing bias is set with a second set value larger than the first set value, based on whether or not a temperature of the developing roller is a first predetermined value or larger.