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:
May. 10, 2022
Filed:
Aug. 18, 2020
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Takahiro Netsu, Nagano, JP;
Takuma Usuda, 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); B41J 2/17503 (2013.01); B41J 2002/17573 (2013.01);
Abstract
A printer includes an ink tank, a print head that performs printing by using ink in the ink tank, a light source that emits light into the ink tank, a sensor that detects light incident from an ink tank side in a period during which the light source emits light and outputs pixel data, and a processing section that determines an ink amount based on an output of the sensor. A pitch of a plurality of lenses is k times a pixel pitch of the sensor, k being an integer of 2 or more, and the processing section detects the ink amount based on a sum of outputs of k continuous pixels.