Patent ID: 6823161
Filing Date: 2004-11-23
Classification: G03G

Abstract:
A developer of an electrophotographic image forming system, the developer comprising:a developer container for storing a developing solution; a developing roller disposed in said developer container, which is partially soaked in the developing solution that is stored in the developer container, said developing roller being installed to rotate in an opposite direction of a direction of rotation of a photosensitive medium; and a developing solution agitator which agitates the developing solution in an upward and downward direction for preventing accumulation of developing solution having a higher concentration at a bottom portion of the developer container and thereby maintaining the developing solution in a uniform concentration; wherein the developing solution agitator comprises: a first shaft, wherein said first shaft is installed to rotate in the developer container and wherein a first gear is disposed at a side of said first shaft; at least one of a second shaft having a first side and a second side; wherein a second gear is disposed at the first side of the second shaft, and a propeller for agitating the developing solution, wherein said propeller is disposed at the second side of the second shaft.