Patent ID: 7092662
Filing Date: 2006-08-15
Classification: G03G

Abstract:
1. An image forming apparatus comprising: an image carrier; a charging device for charging a surface of the image carrier; an exposing device for exposing the surface of the image carrier charged by the charging device to an exposure light in order to form an electrostatic latent image on the surface of the image carrier; a developing device for developing the electrostatic latent image by causing toner adhere to the electrostatic latent image; and a thermometer for measuring surrounding temperature; the developing device including a toner carrier for carrying toner to be supplied to the image carrier, a toner supplying device for supplying toner to the toner carrier, and a toner regulating member for shaping toner on the toner carrier supplied from the toner supplying device into a thin toner layer; wherein the toner carrier, the toner supplying device and the toner regulating member are applied with voltages VD, VS, and VB respectively, the voltages VD, VS, and VB being determined depending on surrounding temperature measured by the thermometer and satisfying relationship of |VB−VD|<|VS−VD|.