公开(公告)号：US20240027937A1

公开(公告)日：2024-01-25

申请号：US18110797

申请日：2023-02-16

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

Inventor： Jin-Hong Kim ,  SUNGJIN KIM ,  Seongwoong Yang ,  Youngkwang Shin ,  Seung-Chan Park

IPC: G03G15/08

CPC classification number: G03G15/0886 ,  G03G2215/0692

Abstract: An example development cartridge includes a shutter switchable between a closing position and an opening position to open and close a toner inlet through which a toner may be received, and a locking member switchable between a locking position to lock the shutter at the closing position and an unlocking position to allow the shutter to be opened.

公开(公告)号：US11199791B2

公开(公告)日：2021-12-14

申请号：US17263628

申请日：2019-07-25

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

Inventor： Jinsam Park ,  Jin-Hong Kim ,  Seongwoong Yang

IPC: G03G21/18 ,  G03G15/08 ,  G03G21/16

Abstract: A toner cartridge includes a body accommodating toner, a front cover located in front of the body and provided with a first opening forming a grip portion for pulling the toner cartridge forward, an opening/closing member which is located inside the front cover and is switched to a first position closing the first opening and a second position opening the first opening, and an elastic member configured to apply an elastic force to the opening/closing member in a direction to be located at the second position.

公开(公告)号：US20240264561A1

公开(公告)日：2024-08-08

申请号：US18565834

申请日：2021-10-12

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

Inventor： Jinsam Park ,  Jinhong Kim ,  Seongwoong Yang ,  Youngchae Kim

IPC: G03G21/12 ,  G01F23/292

CPC classification number: G03G21/12 ,  G01F23/2921

Abstract: Provided is a waste toner container including a housing having a first reservoir and a second reservoir, a light sensor including a light emitting portion and a light receiving portion, and a light guide member to connect the light emitting portion with the light receiving portion. The light guide member includes a first detection portion and a second detection portion each including a pair of optical surfaces that are apart from each other, and the first and second detection portions are provided in the first and second reservoirs, respectively.

公开(公告)号：US12001151B2

公开(公告)日：2024-06-04

申请号：US18039926

申请日：2021-03-23

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

Inventor： Seongwoong Yang ,  Youngchae Kim ,  Jinhong Kim ,  Sunghoon Oh

IPC: G03G15/08

CPC classification number: G03G15/0812 ,  G03G15/0808 ,  G03G15/0817 ,  G03G15/0881 ,  G03G15/0898

Abstract: A developing device may include a housing to accommodate a developing agent, a developing roller to convey the developing agent adhered to an outer periphery of the developing roller to an outside of the housing, a regulation member positioned apart from the developing roller and having a circular cross-sectional shape to regulate a thickness of the developing agent adhered to the developing roller, and a sealing member between the regulation member and the housing to prevent leakage of the developing agent. A diameter of a central portion of the regulation member may be different from diameters of both end portions of the regulation member.

公开(公告)号：US12189326B2

公开(公告)日：2025-01-07

申请号：US18565834

申请日：2021-10-12

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

Inventor： Jinsam Park ,  Jinhong Kim ,  Seongwoong Yang ,  Youngchae Kim

IPC: G03G21/12 ,  G01F23/292 ,  G03G15/08 ,  G03G21/10

Abstract: Provided is a waste toner container including a housing having a first reservoir and a second reservoir, a light sensor including a light emitting portion and a light receiving portion, and a light guide member to connect the light emitting portion with the light receiving portion. The light guide member includes a first detection portion and a second detection portion each including a pair of optical surfaces that are apart from each other, and the first and second detection portions are provided in the first and second reservoirs, respectively.

公开(公告)号：US12085884B2

公开(公告)日：2024-09-10

申请号：US18014740

申请日：2020-11-17

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

Inventor： Jinsam Park ,  Jinhong Kim ,  Gun Heo ,  Seongwoong Yang

IPC: G03G21/16 ,  G03G15/08

CPC classification number: G03G21/1647 ,  G03G15/0875 ,  G03G21/1676 ,  G03G2221/1654

Abstract: A toner cartridge includes: a housing to accommodate toner and including a fastening boss at a front end; a front cover including a fastening hole aligned with the fastening boss; a fastening member including a fastening portion and a head portion, the fastening portion configured to pass through the fastening hole and be fastened to the fastening boss to couple the front cover to the housing; and a separating portion to allow the fastening hole to be separated from the head portion of the fastening member by an external force acting on the front cover.

公开(公告)号：US20210286291A1

公开(公告)日：2021-09-16

申请号：US17263628

申请日：2019-07-25

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

Inventor： Jinsam Park ,  Jin-Hong Kim ,  Seongwoong Yang

IPC: G03G15/08

Abstract: A toner cartridge includes a body accommodating toner, a front cover located in front of the body and provided with a first opening forming a grip portion for pulling the toner cartridge forward, an opening/closing member which is located inside the front cover and is switched to a first position closing the first opening and a second position opening the first opening, and an elastic member configured to apply an elastic force to the opening/closing member in a direction to be located at the second position