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. 02, 2022
Filed:
Feb. 11, 2021
Ricoh Company, Ltd., Tokyo, JP;
Yoshinori Bandoh, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A liquid discharge head includes a plurality of nozzles arrayed in a two-dimensional matrix, the plurality of nozzles configured to discharge a liquid, a plurality of pressure chambers respectively communicating with the plurality of nozzles, a plurality of common-supply branch channels communicating with two or more of the plurality of pressure chambers, a plurality of common-collection branch channels communicating with two or more of the plurality of pressure chambers, a common-supply main channel communicating with the plurality of common-supply branch channels, a common-collection main channel communicating with the plurality of common-collection branch channels, and a bypass channel configured to connect one of the plurality of common-supply branch channels and one of the plurality of common-supply branch channels. The plurality of common-supply branch channels and the plurality of common-supply branch channels are alternately arrayed in an array direction.