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:
Aug. 26, 2025

Filed:

Aug. 14, 2023
Applicant:

Brother Kogyo Kabushiki Kaisha, Nagoya, JP;

Inventors:

Masahiro Hayashi, Anjo, JP;

Takafumi Nakase, Nagoya, JP;

Ryuji Horata, Gamagori, JP;

Nobumasa Tanaka, Nagoya, JP;

Kenta Horade, Tokai, JP;

Zenichiro Sasaki, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/21 (2006.01); B41J 2/11 (2006.01); B41J 2/165 (2006.01); B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
B41J 2/2142 (2013.01); B41J 2/11 (2013.01); B41J 2/16505 (2013.01); B41J 2/16526 (2013.01); B41J 2/17526 (2013.01); B41J 2/2139 (2013.01);
Abstract

There is provided a liquid ejecting apparatus including: a head having a nozzle; a signal outputting part having an electrode and configured to output a signal indicating a magnitude of an electric change in the electrode; and a controller. The controller is configured to execute a determination as to whether or not the nozzle is normal based on the signal output from the signal outputting part in a case that the controller drives the head so as to eject a liquid droplet from the nozzle toward the electrode. The controller is configured to determine that the nozzle is normal in a case that the magnitude of the electric change is within a predetermined normal range, and to determine that the nozzle has a first abnormality in a case that the magnitude of the electric change is greater than the normal range.


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