Patent ID: 7035577
Filing Date: 2006-04-25
Classification: G03G

Abstract:
1. A developing apparatus comprising: a developing portion for supplying conductive toner to a photoconductor portion in which an electrostatic latent image is formed; and a replenishing portion for replenishing the conductive toner stored in a developing container to the developing portion, the photoconductor portion and the developing portion as well as the developing portion and the replenishing portion being relatively moved, wherein the developing portion and the replenishing portion are located at a predetemined interval without being in contact with each other, wherein the developing apparatus is provided with a replenishing bias portion for applying replenishing bias voltage to the developing portion and the replenishing portion, and wherein when the replenishing bias portion applies replenishing bias voltage, conductive toner kept on a surface of the replenishing portion is charged and then the charged conductive toner moves from the replenishing portion to the developing portion by electric field generated between the developing portion and the replenishing portion to be replenished.