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:
Apr. 14, 2020
Filed:
Jan. 09, 2018
Seiko Epson Corporation, Tokyo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid ejecting apparatus includes a liquid flow path which communicates with a nozzle which ejects liquid; a vacuum degassing chamber for removing air bubbles from liquid by depressurizing a part of the liquid flow path; a gas flow path which communicates with the vacuum degassing chamber; a pressurizing chamber which communicates with the gas flow path; and a pump which communicates with the vacuum degassing chamber and the pressurizing chamber through the gas flow path, in which the pump is driven by a sequence selected from a plurality of sequences, and the plurality of sequences include a plurality of depressurizing sequences in which the vacuum degassing chamber is depressurized so that an average pressure of the vacuum degassing chamber becomes different, and a pressurizing sequence in which the pressurizing chamber is pressurized.