Patent ID: 8135314
Filing Date: 2012-03-13
Classification: G03G

Abstract:
1. A developing device comprising: a cylindrical developer carrier to rotate on a developer carrier shaft including a plurality of magnetic poles arranged therein, to carry a developer including magnetic particles and toner, and to supply the developer to an electrostatic latent image formed on an image carrier to develop the electrostatic latent image, wherein the plurality of magnetic poles include magnetic poles disposed adjacent to each other and having a same polarity, a first developer agitating/conveying member to rotate on a first shaft parallel to the developer carrier shaft, to agitate and convey developer along the first shaft, and to supply the developer to the cylindrical developer carrier; a second developer agitating/conveying member to rotate on a second shaft parallel to the developer carrier shaft, to agitate and convey the developer in a reverse direction from a direction the first developer agitating/conveying member conveys the developer, wherein the second developer agitating/conveying member conveys the developer to the first developer agitating/conveying member while agitating the developer, wherein the cylindrical developer carrier includes,