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:
Jan. 12, 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);
U.S. Cl.
CPC ...
B41J 2/17566 (2013.01);
Abstract
Provided is a printer including an ink tank having a mark at a side surface of the ink tank, a print head performing printing by using ink in the ink tank, a photoelectric conversion device provided outside the side surface having the mark among side surfaces of the ink tank, and detecting light from the ink tank, and a processing unit determining a position of an interface of the ink based on an output of the photoelectric conversion device and detecting an amount of ink in the ink tank based on a position of the mark and the position of the interface.