Developing Cartridge

摘要

A developing cartridge includes: a housing having first and second sidewalls through which respective end portions of a developing roller shaft are rotatably inserted; a developing gear, which is arranged outside of the first sidewall, and which is fixed to the end portion of the developing roller shaft; a transmission gear, which is arranged outside of the first sidewall, and which transmits driving force to the developing gear; a first cover member, which is attached to the first sidewall, and which covers the transmission gear; and a second cover member, which is attached to the first sidewall, and which covers the developing gear from an outer side in the axis line direction. The second cover member is formed separately from the first cover member and is arranged side by side with the first cover member outside of the first sidewall.

主权项

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 and 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.