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:
Aug. 24, 2021
Filed:
Jun. 18, 2020
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Shotaro Kanzaki, Handa, JP;
Toshihiro Kishigami, Obu, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
There is provided a liquid discharge head including a channel unit. The channel unit includes: first and second individual channel groups including a plurality of first and second individual channels; two supply manifolds and two return manifolds; and bypass channels communicating with the two supply manifolds or with the two return manifolds. A relationship of |P|>|P| is satisfied, wherein Pis a first pressure of the supply manifold provided commonly for the first individual channel group, Pis a second pressure of the supply manifold provided commonly for the second individual channel group, −Pis a third pressure of the return manifold provided commonly for the first individual channel group, and −Pis a fourth pressure of the return manifold provided commonly for the second individual channel group.