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 2/17566 (2013.01); B41J 2/17553 (2013.01); G01F 23/2927 (2013.01); B41J 2002/17573 (2013.01);
Abstract
Provided is a printer including an ink tank, a print head, a light source that irradiates the ink tank with light, a photoelectric conversion device that detects light incident from the ink tank, and a processing unit. The processing unit detects an amount of ink in the ink tank based on a lowest position among the positions where a light amount detected by the photoelectric conversion device satisfies a given condition.