Patent ID: 7292800
Filing Date: 2007-11-06
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image carrier adapted such that a latent image is formed thereon; a developing device having a developing roller operable to carry a developer for developing the latent image at a developing position opposing the image carrier, as a developed image which is to be transferred, to a medium at a transferring position; a rotary development apparatus supporting the developing device centering on a rotating shaft thereof to rotate to move to the developing position; a stepping motor operable to drive the developing roller; and a controller operable to bring the stepping motor in a rotating state when the developing roller opposes a region that the latent image is formed on the image carrier and to hold the stepping motor in the same phase while inputting a current when the developing roller opposes a region that the latent image is not formed on the image carrier.