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 2/17513 (2013.01); G01F 23/2921 (2013.01); B41J 2002/17573 (2013.01);
Abstract
Provided is a printer including an ink tank provided with, at a side surface, an optical separator for separating light in a vertical direction, a print head performing printing by using ink in the ink tank, a photoelectric conversion device detecting light incident from the ink tank after passing through the optical separator, and a processing unit detecting an amount of ink in the ink tank based on an output of the photoelectric conversion device.