| 摘要 |
PURPOSE:To enhance the miniaturization of a device by supplying a developer from a cylindrical cartridge having the developer received therein and inserted to the hollow part of a photosensitive drum to a developing equipment through an opening provided near the end part of the photosensitive drum. CONSTITUTION:A photosensitive drum 1 is formed into a hollow form by fixing a bottomed flange 13 and a cylindrical flange 14 to both end of a photosensitive body. A shaft part 15 protruded from the flange 13 and the body part 16 of the flange 14 are inserted to a bearing 17 and rotatably supported by the support wall 18 of a device box. A locking projection having nearly a rectangular form seeing from the front and protruded from the bottom part inner wall surface of the flange 13 is fitted to the edge of a cartridge 3, and the cartridge 3 is rotated together with the drum 1. The flange 13 has a proper number of openings 4 to fall the developer from the cartridge 3 to the developer receiving part 20 of a developing machine 5 below. Thus, it is not required to additionally provide the setting space of the cartridge 3, and the device can be miniaturized. |
