公开(公告)号：US11016415B1

公开(公告)日：2021-05-25

申请号：US17049557

申请日：2019-02-25

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Hojin Jang ,  Seil Kwon ,  DaeHo Kim ,  Jong-Hyun Park ,  Jong-Hwa Park

IPC: G03G15/08

Abstract: A development cartridge includes a developer housing to receive a developer. The developer housing includes a developing chamber to have a developing roller in the developing chamber and extending in a longitudinal direction of the developing roller, an agitating chamber located parallel to the developing chamber, and a partition wall to separate the developing chamber from the agitating chamber, the partition wall having a first communication hole and a second communication hole respectively formed at both end portions of the partition wall in the longitudinal direction, through which the developing chamber and the agitating chamber are to communicate through. A developer inlet, through which the developer is injectable into the developer housing, for the developer housing to receive the developer, is formed in the developer housing at a position corresponding to the first communication hole or the second communication hole. The developer inlet is closeable with a cap.