Patent ID: 9020399
Filing Date: 2015-04-28
Classification: G03G

Abstract:
1. A developing cartridge comprising: a developing roller comprising a developing roller main body and developing roller shaft; a housing having a first boss and a second boss protruding outwardly in a first direction parallel to the developing roller shaft, the first boss and the second boss being arranged in a second direction perpendicular to the first direction; a developing gear fixed to the developing roller shaft and disposed between the first boss and the second boss in the second direction; a transmission gear configured to receive driving force, the transmission gear being engaged with the developing gear and configured to transmit the driving force to the developing gear, the transmission gear and the developing gear being arranged in a third direction perpendicular to the first direction and to the second direction; a cover member configured to cover at least a portion of the transmission gear and at least a portion of the developing gear, the cover member having a first boss insertion hole and a second boss insertion hole through which the first boss and the second boss are inserted, respectively; and the cover member having a first screw insertion part, wherein the first boss insertion hole, the second boss insertion hole, and the first screw insertion part are arranged in the second direction, and wherein a first screw is inserted through the first screw insertion part to attach the cover member to the housing.