公开(公告)号：US20230375974A1

公开(公告)日：2023-11-23

申请号：US18031223

申请日：2021-04-12

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

Inventor： Younghoon KIM ,  Wontaek KIM ,  Holyun HWANG ,  Hwanghee RYU ,  Saehoon HAN ,  Seongho PARK ,  Seunggweon LEE ,  Woongyong CHOI ,  Sungjin KIM ,  Junhui KIM

IPC: G03G21/16

CPC classification number: G03G21/1647 ,  G03G21/1676

Abstract: An example image forming apparatus includes a main body including an opening and an accommodation portion, a development cartridge detachable from the main body, a tray on which to mount the development cartridge, the tray being movable between a mounting position inserted into the main body through the opening, a withdrawal position extracted from the main body, and an accommodation position at which the development cartridge is accommodated in the accommodation portion, and an elastic support member to elastically support the development cartridge with respect to the tray while the tray moves between the mounting position, the withdrawal position, and the accommodation position.

公开(公告)号：US20210094304A1

公开(公告)日：2021-04-01

申请号：US17050146

申请日：2018-08-30

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

Inventor： Jiwon MOON ,  Minul LEE ,  Woongyong CHOI ,  SeungSup LEE ,  Jinhwa HONG ,  Matthew James STOREY ,  An TRAN ,  Bennett Alexander NADEAU ,  Zackary Thomas HICKMAN

IPC: B41J2/175

Abstract: In some examples, an apparatus can include a mating interface coupled to a dispense interface to interact with a print particle dispense nozzle, a locking mechanism coupled to the dispense interface to prevent the print particle dispense nozzle from depositing a print particle to the dispense interface, and an authentication mechanism coupled to the locking mechanism to: authenticate the print particle dispense nozzle, and unlock the locking mechanism when the print particle dispense nozzle is authenticated to allow the print particle dispense nozzle to deposit the print particle to the dispense interface.

公开(公告)号：US20210232061A1

公开(公告)日：2021-07-29

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

Abstract: A printer includes a main body; a development cartridge attachable to and detachable from the main body, the development cartridge comprising 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; and 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：US20210116838A1

公开(公告)日：2021-04-22

申请号：US17047534

申请日：2019-03-21

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

Inventor： Yongnam AHN ,  Woongyong CHOI

IPC: G03G15/08 ,  G03G21/16

Abstract: A toner cartridge includes a hollow body having an inner space in which toner is received and a toner discharge portion through which the toner is discharged, a plunger accommodated in the inner space to be movable in a longitudinal direction along the inner space and configured to push the toner through the toner discharge portion to outside of the body, a first hook provided on the body, and a second hook. The second hook has a shape complementary to a shape of the first hook, is provided on the plunger, and is elastically coupled to the first hook when the plunger reaches a bottom dead position.

公开(公告)号：US20210088939A1

公开(公告)日：2021-03-25

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.