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:
Dec. 27, 2016

Filed:

Aug. 19, 2015
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Kiyoteru Katsuki, Azumino, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/165 (2006.01);
U.S. Cl.
CPC ...
B41J 2/16523 (2013.01); B41J 2/1652 (2013.01); B41J 2/16508 (2013.01);
Abstract

A maintenance unitof a printerhas a waste ink recovery tankthat recovers waste ink. First and second mixing tubesA andB connect to the waste ink recovery tank. One mixing tubeA branches into a tube BK and a tube Y, and the second mixing tubeB branches into a tube C and a tube M. Black ink BK and yellow ink Y are merged and mixed in first mixing tubeA before entering the waste ink recovery tank. The mixed inks from both mixing tubes then mix and flow together through a flow pathin the waste ink recovery tank. As a result, the chance of the ink inlets to the waste ink recovery tank becoming clogged by ink that has increased in viscosity can be reduced.


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