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:
Jun. 29, 2021
Filed:
Feb. 10, 2020
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Takahiro Netsu, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01); G01F 23/292 (2006.01);
U.S. Cl.
CPC ...
B41J 2/17513 (2013.01); B41J 2/17566 (2013.01); G01F 23/2921 (2013.01); B41J 2002/17573 (2013.01);
Abstract
Provided is a printer including an ink tank, a print head performing printing by using ink in the ink tank, a light source irradiating the ink tank with light, a photoelectric conversion device detecting light incident from the ink tank in a period during which the light source emits light, and a processing unit determining ink characteristics based on characteristics of a light amount detected by the photoelectric conversion device.