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:
Apr. 08, 2025
Filed:
Dec. 14, 2022
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Hideki Hayashi, Nagoya, JP;
Itta Yamada, Nagoya, JP;
BROTHER KOGYO KABUSHIKI KAISHA, Nagoya, JP;
Abstract
There is provided a liquid discharge apparatus including: a reservoir configured to store a liquid; a head in which a nozzle is opened; a liquid circulator including a negative pressure pump, the liquid circulator being configured to circulate the liquid between the reservoir and the nozzle; a negative pressure regulating valve configured to regulate communication between a gas layer of the reservoir and an atmosphere; and a controller configured to perform: obtaining a nozzle pressure in an area, of the liquid circulator, near the nozzle; and controlling the negative pressure regulating valve to open, in response to the nozzle pressure being less than a first threshold value that is a negative value and greater than a second threshold value that is less than the first threshold value.