Patent ID: 8032062
Filing Date: 2011-10-04
Classification: G03G

Abstract:
1. A developing unit for developing an electrostatic latent image born on an image bearing member with a developer that has been charged by mixing and agitating toner and magnetic carrier, comprising: a developing hopper for holding the developer; a developer bearing member for bearing the developer having been mixed and agitated in the developing hopper and supplying the developer to a developed area arranged opposing the image bearing member; and at least a pair of agitating and conveying members rotationally driven in the developing hopper for conveying the developer while agitating, agitating and conveying members being arranged substantially parallel to the developer bearing member and each rotational shaft of the agitating and conveying members is embedded with a magnetic source element whose magnetic poles are laid out so as to generate a magnetic field in a radial direction from the rotational shaft of the agitating and conveying member; and a toner supply port for supplying the toner into the developing hopper is arranged over the paired agitating and conveying members.