公开(公告)号：US20220057729A1

公开(公告)日：2022-02-24

申请号：US17309516

申请日：2020-03-04

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

Inventor： Woongyong Choi ,  Yunkyu Shim ,  Seunggweon Lee

IPC: G03G15/08 ,  G03G21/16

Abstract: An example toner refill cartridge includes a body to accommodate toner and having a toner discharge hole, a shutter being rotatable between a first position at which the toner discharge hole is closed and a second position at which the toner discharge hole is opened, a coupler to rotate by receiving an external rotational force, an agitation member to rotate and agitate the toner by receiving a rotational force from the coupler, and a connection member to selectively transmit a rotational force of the coupler to the shutter.

公开(公告)号：US11947312B2

公开(公告)日：2024-04-02

申请号：US18027618

申请日：2021-06-25

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Minguk Go ,  Horyul Lee ,  Yoshihiko Ichikawa ,  Yunkyu Shim

IPC: G03G21/00 ,  G03G15/08 ,  G03G21/20

CPC classification number: G03G21/206 ,  G03G15/0812 ,  G03G15/0815 ,  G03G2221/1645

Abstract: An example developing device includes a developing roller, a regulation blade to regulate a thickness of a toner layer attached to an outer circumference of the developing roller, a blade bracket for supporting the regulation blade, and an inner duct including an air supply port and extending in a longitudinal direction of the developing roller to form a flow path of air to cool the blade bracket.

公开(公告)号：US11467517B2

公开(公告)日：2022-10-11

申请号：US17309516

申请日：2020-03-04

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

Inventor： Woongyong Choi ,  Yunkyu Shim ,  Seunggweon Lee

IPC: G03G15/08 ,  G03G21/16

Abstract: An example toner refill cartridge includes a body to accommodate toner and having a toner discharge hole, a shutter being rotatable between a first position at which the toner discharge hole is closed and a second position at which the toner discharge hole is opened, a coupler to rotate by receiving an external rotational force, an agitation member to rotate and agitate the toner by receiving a rotational force from the coupler, and a connection member to selectively transmit a rotational force of the coupler to the shutter.