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.

Date of Patent:
Jul. 10, 2018

Filed:

Mar. 17, 2017
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Hirohisa Ozawa, Tatsuno-machi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); B41J 2/21 (2006.01); B41J 2/205 (2006.01);
U.S. Cl.
CPC ...
B41J 2/04508 (2013.01); B41J 2/04586 (2013.01); B41J 2/2056 (2013.01); B41J 2/2103 (2013.01); B41J 2/2107 (2013.01);
Abstract

A printing apparatus includes a first nozzle which ejects first ink containing a black coloring material, a second nozzle which ejects second ink with a low content rate of the coloring material compared to the first ink, and a control unit which controls ejecting of the ink from the first and second nozzles, in which, in a case of printing a darkest point, the control unit causes the second ink to be ejected after causing the first ink to be ejected, and causes the second ink to be ejected from the second nozzle so that a use rate of the second ink becomes 1% or more and 15% or less, when causing the second ink to be ejected.


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