Patent ID: 6360066
Filing Date: 2002-03-19
Classification: G03G

Abstract:
A developing apparatus that is equipped with a development casing that serves as a developing tank by storing developer, a development roller that supplies the developer within the development casing to a developing section, and a plurality of developer stirring shafts that rotate together with the development roller, thereby to stir and convey the developer within the development casing based on the rotation of the developer stirring shafts, whereinthe plurality of developer stirring shafts are disposed mutually adjacent to each other and are also disposed substantially in parallel with the development roller, each developer stirring shaft having a rotation axis that rotates together with the development roller and having a plurality of stirring vanes of an approximately elliptic shape laid out at a predetermined angle with respect to the rotational axis, and the stirring vanes are disposed substantially in parallel with each other, with the opposing stirring vanes between the adjacent developer stirring shafts having mutually different installation positions in the axial direction.