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:
Oct. 19, 2021
Filed:
Sep. 17, 2019
Kyocera Document Solutions Inc., Osaka, JP;
Daisuke Eto, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
A liquid ejection device includes a liquid ejection head and a liquid supply unit configured to supply liquid to the liquid ejection head. The liquid ejection head includes a plurality of liquid discharge holes, individual passages configured to individually supply the liquid to the respective liquid discharge holes, and a common passage configured to supply the liquid to the individual passages. The liquid supply unit includes a pressure chamber capable of storing the liquid, a first supply passage allowing communication between the liquid storage container and the pressure chamber, a second supply passage allowing communication between an upstream side of the common passage and the pressure chamber, a return passage allowing communication between a downstream side of the common passage and the pressure chamber, and a pump mechanism capable of circulating the liquid at least through the second supply passage, the common passage and the return passage.