Invention Grant
- Patent Title: Liquid ejection head and liquid ejection apparatus
-
Application No.: US17362492Application Date: 2021-06-29
-
Publication No.: US11673396B2Publication Date: 2023-06-13
- Inventor: Kazuhiro Yamada , Yoshiyuki Nakagawa , Toru Nakakubo , Ryo Kasai , Takuro Yamazaki
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JP 2018248110 2018.12.28
- The original application number of the division: US16710367 2019.12.11
- Main IPC: B41J2/175
- IPC: B41J2/175 ; B41J2/16 ; B41J2/14

Abstract:
A liquid ejection head includes a print element substrate including multiple ejection openings, pressure chambers, a common flow path, and pumps, the pumps being configured to circulate liquid between the common flow path and the pressure chamber; and a flow path member laminated to the print element substrate. The flow path member includes a supply flow path and a collection flow path, the supply flow path being configured to supply liquid to the print element substrate, and the collection flow path being configured to collect liquid that is not ejected. The supply flow path and the collection flow path have liquid connection with the same common flow path. A circulating pump generates a flow of liquid flowing in an order of the supply flow path, the common flow path, and the collection flow path, the circulating pump being provided at a position different from the print element substrate.
Public/Granted literature
- US20210323310A1 LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS Public/Granted day:2021-10-21
Information query
IPC分类: