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:
Sep. 26, 2023
Filed:
Jun. 24, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Hideaki Matsumura, Kanagawa, JP;
Daiju Takeda, Kanagawa, JP;
Tetsu Hamano, Tokyo, JP;
Nobuhiro Toki, Kanagawa, JP;
Fumie Kameyama, Tokyo, JP;
Koki Shimada, Kanagawa, JP;
Shota Asada, Tokyo, JP;
Ken Takenaga, Kanagawa, JP;
Yusuke Tanaka, Kanagawa, JP;
Yuta Araki, Chiba, JP;
Taiji Maruyama, Kanagawa, JP;
Atsushi Matsuyama, Kanagawa, JP;
Yusuke Naratani, Tokyo, JP;
Kousuke Tanaka, Kanagawa, JP;
Koya Iwakura, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A print head includes a nozzle array comprising a plurality of nozzles, and a negative pressure generating portion configured to apply a negative pressure to the nozzle array. A tank includes a storage portion and an air communication port. A tube connects the print head and the tank and supply the liquid from the tank to the print head. A highest position of a liquid level in the tank in the vertical direction is higher than a position of the nozzle array, and an absolute value of a water head difference caused by a difference between the highest position of the liquid level in the tank and the position of the nozzle array is not larger than an absolute value of a negative pressure generated by the negative pressure generating portion.