Patent ID: 8437666
Filing Date: 2013-05-07
Classification: G03G

Abstract:
1. A developing device usable with an image forming apparatus, the developing device comprising: a housing in which a developer receiving chamber is defined; a partition to divide the developer receiving chamber into a first developer receiving chamber and a second developer receiving chamber; and a first developer delivery member arranged in the second developer receiving chamber to deliver developer in a first direction, wherein the partition includes a developer supply port to allow the developer to be supplied from the first developer receiving chamber to the second developer receiving chamber during operation of the developing device, at least one opening to communicate the first developer receiving chamber and the second developer receiving chamber with each other, a first section extending vertically from the bottom of the housing, a second section bent from the first section to divide the developer receiving chamber vertically, a third section extending vertically from the second section, and a shield to block between the first developer receiving chamber and the second developer receiving chamber at an upstream position of the first direction so as to isolate the two developer receiving chambers from each other, the shield being formed at one end of the third section with respect to the first direction.