Patent ID: 8606128
Filing Date: 2013-12-10
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image carrier which is irradiated with a laser beam to form an electrostatic latent image, a charging device that charges an electric charge to the image carrier, a developing device that includes a developing roller supplying the image carrier with a developer, a transfer device that transfers a toner image formed on the image carrier by the developing device onto a recording medium, a fixing device that fixes the toner image to the recording medium onto which the toner image is transferred, and a control unit that discriminates between a first mode of forming an image on a first recording medium of a first thickness and a second mode of forming an image on a second recording medium thinner than the first recording medium to control a developing contrast electric potential which is a difference between a developing bias electric potential and a exposure electric potential, and lowers a magnitude of the developing contrast electric potential in the second mode further than the first mode.