Patent ID: 6801732
Filing Date: 2004-10-05
Classification: G03G

Abstract:
A developing apparatus of an electric photographic printer supplying a two-element developing agent to develop an electrostatic latent image formed on a photosensitive medium, comprising:a housing; a developing agent supplying roller disposed at a lower part of the housing to transfer the developing agent; a developing agent mixing roller disposed at one side of the developing agent supplying roller to mix the developing agent so that two elements of the developing agent are mixable equally; a developing sleeve rotatably disposed in the housing and at one upper part of the developing agent mixing roller to transfer the mixed developing agent to the photosensitive medium through a developing area formed between the developing sleeve and the photosensitive medium; a fixing magnet disposed inside of the developing sleeve to have a plurality of magnetic poles arranged from the developing area in a circular direction about a center of the fixing magnet to allow the developing agent to be transferred to the developing area through the developing sleeve; and a magnetic bar disposed on an inside surface of the housing to face one of the magnetic poles of the fixing magnet through the developing sleeve to form a magnetic force brush to absorb the developing agent scattered at the developing area.