公开(公告)号：US20190361372A1

公开(公告)日：2019-11-28

申请号：US16478285

申请日：2018-01-17

Applicant: HP PRINTING KOREA CO., LTD.

Inventor： Jong In KIM

IPC: G03G15/08 ,  G03G21/12

Abstract: Disclosed is a development cartridge detachable from a main body of an image forming apparatus. The development cartridge includes a lateral waste toner sealing member contacting an end portion of a photosensitive drum in a lengthwise direction of the photosensitive drum to prevent a waste toner from leaking through the end portion of the photosensitive drum, and a photosensitive frame including a waste toner container to contain the waste toner, a first attachment surface, to which the lateral waste toner sealing member is attached, and a side wall to form a boundary at an upstream side of the first attachment surface with respect to a rotation direction of the photosensitive drum. The lateral waste toner sealing member includes an opposite surface facing the side wall, and a protrusion protruding towards the side wall is provided on the opposite surface.