Patent ID: 6047152
Filing Date: 2000-04-04
Classification: G03G

Abstract:
A developing device in an image forming apparatus, comprising:a developing roller opposed to a photosensitive body, on which an electro-static latent image is formed, for developing the electro-static latent image by using toner;a supplying roller for supplying the toner to said developing roller;a wall member defining a developing chamber, in which said developing roller and said supplying roller are disposed, and a toner supply port, through which the toner is supplied into the developing chamber;an upper auger and a lower auger disposed in said developing chamber in a vicinity of the toner supply port for carrying and circulating the toner supplied through the toner supply port, and adhering the toner onto said supplying roller; andan auger partition plate disposed between said upper and lower augers for restricting a movement of the toner between said upper and lower augers,wherein said toner supply port is formed at a predetermined position in a lateral direction of the developing chamber, which is parallel to rotational axes of said supplying roller and said developing roller, andwherein one of said upper and lower augers carries the toner from said toner supply port to both end positions in the lateral direction of the developing chamber and the other of said upper and lower augers carries the toner from the both end positions to said toner supply port.