公开(公告)号：US20230034437A1

公开(公告)日：2023-02-02

申请号：US17844838

申请日：2022-06-21

Applicant: SEMES CO., LTD.

Inventor： Won Yong JIN ,  Ho Sang LEE ,  Suk Won JANG

IPC: B41J2/175

Abstract: A printing apparatus and an ink refill method thereof are provided. The printing apparatus may comprise a printing unit performing printing, and an ink filling unit filling ink in the printing unit in an upward manner, wherein the printing unit includes a printing ink receptor accommodating ink, a spray head spraying the ink, and a pressure controller controlling a pressure of a fluid for operation of the ink, and the ink filling unit includes a supply ink receptor filled with ink for supply to the printing unit, and an ink supply unit mounted on the spray head to supply the ink supplied from the supply ink receptor to the spray head.

公开(公告)号：US20240316944A1

公开(公告)日：2024-09-26

申请号：US18418676

申请日：2024-01-22

Applicant: SEMES CO., LTD.

Inventor： Ho Sang LEE ,  Jang Mi WOO ,  Suk Won JANG

IPC: B41J2/175 ,  B41J2/18

CPC classification number: B41J2/17596 ,  B41J2/17563 ,  B41J2/18

Abstract: Provided is a chemical liquid dispensing apparatus including: a head assembly including a channel unit through which a chemical liquid flows, and multiple nozzles through which the chemical liquid flows from the channel unit and dispensing the chemical liquid onto a substrate; and a pipe connected to the head assembly and through which the chemical liquid passes, wherein the channel unit includes a first flow path having a branched structure, and a second flow path connected to the first flow path and supplying the chemical liquid to the multiple nozzles.