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:
Feb. 04, 2020
Filed:
Jan. 02, 2019
Takaya Kubodera, Kanagawa, JP;
Yuta Moriwaki, Kanagawa, JP;
Takaya Kubodera, Kanagawa, JP;
Yuta Moriwaki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A liquid discharge apparatus includes a liquid discharge head including a supply port, a recovery port, and nozzles to discharge a liquid from the nozzles, a circulation channel connected to the supply port and the recovery port of the liquid discharge head to circulate the liquid through the liquid discharge head, and a cap to cap a nozzle surface of the liquid discharge head in which the nozzles are formed and to suck the liquid from the nozzles in a maintenance operation. The circulation channel includes an individual supply channel communicating with the supply port of the liquid discharge head, an individual recovery channel communicating with the recovery port of the liquid discharge head to circulate the liquid through the liquid discharge head, a supply-side fluid resistance variable section disposed in the individual supply channel to vary fluid a resistance of the individual supply channel.