公开(公告)号：US20210232064A1

公开(公告)日：2021-07-29

申请号：US17051084

申请日：2019-04-30

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

Inventor： Yong-Kwan CHO ,  Woong-Yong CHOI

IPC: G03G15/08 ,  G03G21/16

Abstract: A printer includes a main body, 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, a mounting portion including a toner inlet portion connected to the toner container, where a toner cartridge usable to refill toner in the toner container is mountable to the mounting portion, an inlet shutter rotatably provided in the mounting portion to be rotatable together with the toner cartridge, the inlet shutter rotatable between a blocking position to block the toner inlet portion from receiving toner and an inlet position to open the toner inlet portion to receive toner, a locking unit to selectively lock and unlock the inlet shutter, and a controller to control the locking unit to selectively lock and unlock the inlet shutter based on whether the toner cartridge is mounted to the mounting portion.

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.