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:
Nov. 19, 2024
Filed:
Sep. 23, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Akane Hisanaga, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is a liquid-ejection-apparatus including: a retention-chamber to retain liquid; a turning-member located in the retention-chamber and turns about a shaft-portion according to a height of a liquid-surface of the liquid in the retention-chamber; and a sensor-unit to detect turning of the turning-member. The turning-member includes a float-portion having a lower specific gravity than the liquid in the retention-chamber and a detected portion located above the float-portion and detected by the sensor-unit. A liquid-holding-portion is formed, the liquid-holding-portion extending to the shaft-portion from at least one of a side-surface-portion and a bottom-surface-portion of the float-portion and which can hold the liquid in the retention-chamber. Where the liquid-surface of the liquid in the retention-chamber is at or below a predetermined height, the liquid-holding-portion touches the liquid-surface of the liquid in the retention-chamber to maintain the height of the liquid-surface near the shaft-portion to a height where the shaft-portion is located.