Patent ID: 9250603
Filing Date: 2016-02-02
CPC Classification: G03G

Claim Text:
1. A developing cartridge comprising: a developing roller extending in a first direction, the developing roller comprising a developing roller main body and a protruding portion protruding from the developing roller main body in the first direction; a developing gear having an insertion hole through which the protruding portion is inserted, the developing gear being rotatable with the developing roller; a transmission gear including a coupling part, the transmission gear engaging with the developing gear, the developing gear and the transmission gear being arranged in a second direction perpendicular to the first direction; a gear cover covering at least a portion of the developing gear, the gear cover having an insertion part configured to receive the protruding portion, a boss insertion hole being positioned to one side of the insertion part, a first screw insertion hole being positioned at an opposite side of the insertion part from the boss insertion hole, and a coupling receiving hole through which the coupling part is inserted, wherein the boss insertion hole, the insertion part, and the first screw insertion hole being arranged in a third direction generally perpendicular to the first direction and to the second direction, and wherein the insertion part and the coupling receiving hole are arranged in the second direction; a housing having a boss protruding in the first direction, the boss being inserted through the boss insertion hole; and a first screw being inserted through the first screw insertion hole to attach the gear cover to the housing.