公开(公告)号：US11294301B2

公开(公告)日：2022-04-05

申请号：US17271898

申请日：2019-12-05

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

Inventor： Sungchul Ahn ,  Seongho Jeong ,  Byeongno Jeong ,  Woojin Kim

IPC: G03G15/00 ,  G03G15/08

Abstract: An example toner refill cartridge includes a body to accommodate toner, a plunger inserted into the body and movably coupled to the body in a longitudinal direction of the body, and capable of pushing the toner out of the body, a toner injection amount detector to detect each of a plurality of movement positions of the plunger in accordance with the movement of the plunger, and a connection interface to connect to an image forming apparatus to transmit a signal corresponding to each of the detected movement position to the image forming apparatus.

公开(公告)号：US20210191290A1

公开(公告)日：2021-06-24

申请号：US17271898

申请日：2019-12-05

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

Inventor： Sungchul Ahn ,  Seongho Jeong ,  Byeongno Jeong ,  Woojin Kim

IPC: G03G15/08 ,  G03G15/00

Abstract: An example toner refill cartridge includes a body to accommodate toner, a plunger inserted into the body and movably coupled to the body in a longitudinal direction of the body, and capable of pushing the toner out of the body, a toner injection amount detector to detect each of a plurality of movement positions of the plunger in accordance with the movement of the plunger, and a connection interface to connect to an image forming apparatus to transmit a signal corresponding to each of the detected movement position to the image forming apparatus.

公开(公告)号：US20210318641A1

公开(公告)日：2021-10-14

申请号：US17272745

申请日：2019-12-11

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

Inventor： Sungchul Ahn ,  Seongho Jeong ,  Yongil Moon

IPC: G03G15/08 ,  G03G21/16

Abstract: An example toner refill cartridge includes a body to contain toner, a toner discharge unit, located at a first end portion of the body in a longitudinal direction, to discharge the toner, a plunger, inserted into the body and movable between a top dead position adjacent to a second end portion of the body and a bottom dead position adjacent to the first end portion, to push the toner toward the toner discharge unit, a locking member, removably coupled with the plunger, to lock the plunger at the top dead position, a pulverization member, comprising a wing portion extending in a radius direction, coupled with the plunger and movable between a first portion adjacent to the first end portion and a second position adjacent to the second end portion, and an elastic member to apply an elastic force to the pulverization member.

公开(公告)号：US20240345518A1

公开(公告)日：2024-10-17

申请号：US18292332

申请日：2022-01-12

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

Inventor： Seongho Jeong ,  Jongwon Han ,  Sungchul Ahn ,  Junhui Kim

IPC: G03G15/00 ,  G03G15/08

CPC classification number: G03G15/50 ,  G03G15/0865 ,  G03G15/0877 ,  G03G15/0887 ,  G03G15/556

Abstract: An image forming apparatus includes: a body comprising a developing device, and a mounting unit from which a toner refill cartridge is detachable and which is connected to the developing device and delivers toner accommodated in the toner refill cartridge to the developing device. The body includes a housing having a communication hole so that the toner refill cartridge is mounted on the mounting unit from outside the image forming apparatus. The image forming apparatus includes a drive unit to provide a driving force to the toner refill cartridge so that toner is supplied from the toner refill cartridge to the developing device: a detecting unit to acquire a detected value corresponding to an amount of toner in the toner refill cartridge; and a controller to control an operation of the drive unit based on the detected value.

公开(公告)号：US11294303B2

公开(公告)日：2022-04-05

申请号：US17272745

申请日：2019-12-11

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

Inventor： Sungchul Ahn ,  Seongho Jeong ,  Yongil Moon

IPC: G03G15/08 ,  G03G21/00 ,  G03G21/16

Abstract: An example toner refill cartridge includes a body to contain toner, a toner discharge unit, located at a first end portion of the body in a longitudinal direction, to discharge the toner, a plunger, inserted into the body and movable between a top dead position adjacent to a second end portion of the body and a bottom dead position adjacent to the first end portion, to push the toner toward the toner discharge unit, a locking member, removably coupled with the plunger, to lock the plunger at the top dead position, a pulverization member, including a wing portion extending in a radial direction, coupled with the plunger and movable between a first portion adjacent to the first end portion and a second position adjacent to the second end portion, and an elastic member to apply an elastic force to the pulverization member.

公开(公告)号：USD907698S1

公开(公告)日：2021-01-12

申请号：US29683022

申请日：2019-03-11

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

Designer： Ji-Won Moon ,  Seung-Gweon Lee ,  Woong-Yong Choi ,  Yong-Kwan Cho ,  Yongil Moon ,  Yongnam Ahn ,  Jinhwa Hong ,  Seongho Jeong ,  ByeongNo Jeong ,  Sungchul Ahn ,  Woojin Kim