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:
Nov. 11, 2025

Filed:

May. 26, 2022
Applicant:

Sato Holdings Kabushiki Kaisha, Tokyo, JP;

Inventor:

Takuma Hirafuji, Tokyo, JP;

Assignee:

SATO CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/37 (2006.01); B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
B41J 2/37 (2013.01); B41J 2/04541 (2013.01);
Abstract

A printer is configured to print on a print medium having a thermal color developing layer and includes: a thermal head having a plurality of heating elements that are arranged in a line; and a processor configured to: set a first application period of a pulse of energizing current, during a scanning line time for one line, the pulse of energizing current applying thermal energy that causes the thermal color developing layer to develop color, to the plurality of heating elements, correct a length of the first application period, which is set by the processor, based on an image to be printed, and determine print speed to be applied in printing the whole image at a constant speed, by extending the scanning line time so as to contain a maximum length of the first application period that has been corrected by the processor.


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