Cartridge having contact member to mitigate damage to cartridge frame

摘要

A cartridge includes: a frame defining a chamber for storing developer therein; a rotary body configured to be rotatably supported to the frame; and a contact member. The rotary body includes: a metal shaft extending in an axial direction, the frame extending in the axial direction; and a cover portion made of an elastic material and provided around the metal shaft to expose shaft end portions thereof, the cover portion having a cover-portion end portion positioned inward of the frame in the axial direction. The contact member is provided on the metal shaft and disposed between the cover-portion end portion and the frame in the axial direction such that the contact member is in contact with each of the cover-portion end portion and the frame.

主权项

1. A cartridge comprising:
a frame defining a chamber for storing developer therein; a rotary body configured to be rotatably supported to the frame, wherein the rotary body comprises:
a metal shaft extending in an axial direction and having shaft end portions rotatably supported to the frame, the frame extending in the axial direction; anda cover portion made of an elastic material and provided around the metal shaft to expose the shaft end portions thereof, the cover portion having a first cover-portion end portion positioned inward of the frame in the axial direction; and a contact member provided on the metal shaft and disposed between the first cover-portion end portion and the frame in the axial direction such that the contact member is in contact with each of the first cover-portion end portion and the frame, wherein the frame further comprises a bearing member made of an electrically conductive resin and configured to rotatably support one of the shaft end portions of the metal shaft.