The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2025
Filed:
Dec. 06, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Koichi Kubo, Kanagawa, JP;
Naozumi Nabeshima, Tokyo, JP;
Soji Kondo, Kanagawa, JP;
Kazuya Yoshii, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection apparatus includes: a liquid storage unit; a liquid ejection head; a liquid communication path to communicate the liquid storage unit with the liquid ejection head; and a liquid pressurization unit to supply a liquid in the liquid storage unit to the liquid ejection head through the liquid communication path by pressurization. The liquid ejection head includes: an inlet; a pressure chamber; and a circulation path through which the liquid supplied from the liquid communication path is circulated. The circulation path includes a supply channel, the pressure chamber, a collection channel, a circulation pump, and a pressure adjustment unit. The circulation pump is disposed at a position which is higher in the direction of gravity than a liquid inlet provided in a liquid channel extending from the liquid storage unit to the pressure adjustment unit and where the circulation pump is not in contact with the inlet.