Patent ID: 7136599
Filing Date: 2006-11-14
Classification: G03G

Abstract:
1. A developing apparatus comprising: a development member for developing an electrostatic latent image on an image carrier by applying one-component non-magnetic toner, the development member being in contact with the image carrier; a regulating member for regulating thickness of toner layer on the development member; and a voltage applier for applying bias voltage to a portion between the development member and the image carrier, the bias voltage oscillating between voltages V wherein voltage V voltage V and above notations represent  Vg: ground voltage,  VH: voltage of a background section in an electrostatic latent image formed on the image carrier, and  VL: voltage of a visible section in an electrostatic latent image formed on the image carrier, VL and VH exhibit homopolarity with reference to Vg, and a condition |VL−Vg|<|VH−Vg| is satisfied.