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. 26, 2019
Filed:
Dec. 12, 2017
Seiko Epson Corporation, Tokyo, JP;
Hiroki Miyajima, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid ejecting apparatus includes a back pressure control unit including a back pressure control element that has a first opening, a second opening, a first liquid flow channel that enables the first opening and the second opening to communicate with each other, and a valve body that controls the flow of liquid in the first liquid flow channel, and a housing that houses the back pressure control element and in which a liquid introduction opening that communicates with the first opening and a discharge channel that communicates with the second opening are formed, and a head unit including a third opening connected to the discharge channel of the back pressure control unit, a second liquid flow channel that communicates with the third opening, a first filter disposed in the second liquid flow channel, a pressure generation chamber, a nozzle, and a pressure generation element.