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:
May. 21, 2024

Filed:

Aug. 10, 2022
Applicant:

Brother Kogyo Kabushiki Kaisha, Nagoya, JP;

Inventors:

Daiki Kato, Nagoya, JP;

Hiroto Sugahara, Ama, JP;

Taro Nagano, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/21 (2006.01); B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
B41J 2/2146 (2013.01); B41J 2/04508 (2013.01);
Abstract

A method for correcting an image includes: moving first and second ink jet heads and a medium relative to each other, each of the first and second ink jet heads including nozzles and drive elements corresponding to the nozzles respectively; discharging ink droplets from the nozzles of the first and second ink jet heads, by connecting each of the drive elements to one of power supply circuits and by applying voltage to each of the drive elements, the power supply circuits having different output voltage values each other; determining a density difference between a first image region and a second image region; and switching the voltage to be applied to first drive elements to a first voltage by switching the power supply circuits to be connected to the first drive elements based on the density difference.


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