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. 05, 2016

Filed:

Oct. 28, 2015
Applicant:

Riso Kagaku Corporation, Tokyo, JP;

Inventor:

Atsushi Takata, Ibaraki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/165 (2006.01); B41J 2/175 (2006.01); B41J 29/17 (2006.01); B41J 2/01 (2006.01);
U.S. Cl.
CPC ...
B41J 29/17 (2013.01); B41J 2/01 (2013.01); B41J 2/16517 (2013.01); B41J 2/175 (2013.01); B41J 2002/16573 (2013.01);
Abstract

An inkjet printer includes a determination unit, a maintenance setting value decision unit, and a controller. The determination unit determines whether or not an ink cartridge has passed the recommended time limit, based on the manufacturing date or the start-of-use date, the normal consumption period of the ink cartridge, and the elapsed period from the manufacturing date or the start-of-use date of the ink cartridge. The maintenance setting value decision unit reads the cycle and the strength of a maintenance operation for each type of ink from the memory, in a case where the determination unit determines that the recommended time limit has passed, and selects and decides the shortest cycle and the strongest strength, as maintenance setting values. The controller causes a pressure regulator and a pressure regulating drive unit to execute a purge operation, based on the determined maintenance setting values.


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