公开(公告)号：US12282273B2

公开(公告)日：2025-04-22

申请号：US18556028

申请日：2021-08-31

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

Inventor： Yongnam Ahn ,  Jongin Kim ,  Woongyong Choi ,  Shinhyup Kang

IPC: G03G15/08

Abstract: A developing device includes a housing to accommodate toner, a rotation member installed in the housing, a lens including an optical surface oriented in an axial direction of the rotation member, and a wiper installed in the rotation member and configured to repeatedly wipe the optical surface while the rotation member rotates and supported by the rotation member so as to be movable in the axial direction.

公开(公告)号：US20240201617A1

公开(公告)日：2024-06-20

申请号：US18556028

申请日：2021-08-31

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

Inventor： Yongnam Ahn ,  Jongin Kim ,  Woongyong Choi ,  Shinhyup Kang

IPC: G03G15/08

CPC classification number: G03G15/0896 ,  G03G15/0862 ,  G03G15/0889 ,  G03G2215/0891

Abstract: A developing device includes a housing to accommodate toner, a rotation member installed in the housing, a lens including an optical surface oriented in an axial direction of the rotation member, and a wiper installed in the rotation member and configured to repeatedly wipe the optical surface while the rotation member rotates and supported by the rotation member so as to be movable in the axial direction.

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.

公开(公告)号：US11209754B2

公开(公告)日：2021-12-28

申请号：US17050337

申请日：2019-03-05

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

Inventor： SeungSup Lee ,  Min-Chul Lee ,  Jiwon Moon ,  Woongyong Choi

IPC: G03G15/08

Abstract: A printer includes a main body including a communicating portion, a development cartridge attachable to and detachable from the main body, the development cartridge to supply toner contained in a toner container to an electrostatic latent image formed on a photoconductor, to form a visible toner image, and a toner refilling portion connected to the toner container. The toner refilling portion includes a mounting portion into which a toner cartridge insertable from outside the main body through the communicating portion to be mountable, a toner inlet portion provided in the mounting portion to receive toner from the toner cartridge when the toner cartridge is mounted to the mounting portion, and an inlet shutter switchable between a blocking position where the toner inlet portion is blocked from receiving toner, and an inlet position where the toner inlet portion is open to receive toner. The printer includes a first latch member switchable between a first position where the inlet shutter is locked from switching between the blocking position and the inlet position and a second position where switching of the inlet shutter is allowed to switch between the blocking position and the inlet position, and a switching unit to switch between the first latch member between the first position and the second position.

公开(公告)号：US11209747B2

公开(公告)日：2021-12-28

申请号：US17046370

申请日：2018-08-30

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

Inventor： Jiwon Moon ,  Woongyong Choi ,  Matthew James Storey ,  Jefferson Blake West ,  Bennett Alexander Nadeau

IPC: G03G15/08 ,  B41J2/175

Abstract: In some examples, a print material particles dispenser, including: a print material area with an output area that includes an output channel that is positioned away from a central axis of the print material area, and a structure adapted to decrease a volume of the print material area to output print material particles through the output channel of the print material area.