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：US11366407B2

公开(公告)日：2022-06-21

申请号：US17051081

申请日：2019-03-01

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

Inventor： Yong-Kwan Cho ,  Seung Gweon Lee ,  Jiwon Moon ,  Woongyong Choi ,  Yongil Moon ,  Yongnam Ahn ,  Jinhwa Hong

IPC: G03G15/08 ,  G03G21/18 ,  G03G21/16 ,  G03G15/00

Abstract: A printer may include a main body and a development cartridge attachable to and detachable from the main body. The development cartridge may comprise a developing portion in which a photoconductive drum and a developing roller are provided, a waste toner container to receive waste toner removed from the photoconductive drum, a toner container connected to the developing portion and to receive toner, and a toner refilling portion connected to the toner container and to refill toner through the toner refilling portion into the toner container. The printer may include a communicating portion provided in the main body to be connected to the toner refilling portion to provide an access the toner refilling portion from outside of the main body when the development cartridge is attached to the main body.

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