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. 04, 2017
Filed:
Dec. 07, 2015
Seiko Epson Corporation, Tokyo, JP;
Keiji Matsumoto, Matsumoto, JP;
Shigenori Nakagawa, Tatsuno-machi, JP;
Masahiko Sato, Matsumoto, JP;
Toshinobu Yamazaki, Niigata, JP;
Toshiyuki Suzuki, Matsumoto, JP;
Takeshi Yoshida, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid ejecting apparatus includes: a liquid ejecting unit that ejects a liquid supplied through a liquid supply path from a nozzle; a maintenance unit that performs a maintenance operation of the liquid ejecting unit; and an ejection state detecting unit that is able to detect a state inside a pressure chamber communicating with the nozzle. The ejection state detecting unit detects a state inside the pressure chamber before the maintenance operation and at least one state inside the pressure chamber during the maintenance operation or after the maintenance operation, and is able to determine malfunction of at least one of the maintenance unit and function units arranged in the liquid supply path based on a change in a state inside the pressure chamber due to the maintenance operation.