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.
Patent No.:
Date of Patent:
Oct. 05, 2004
Filed:
Nov. 06, 2003
Tomoyoshi Nishimura, Saitama, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A color thermal printer is provided with a humidity sensor and a paper type discerning sensor. The humidity measured in the humidity sensor is converted to a humidity dependency correction coefficient by an LUT memory. The paper type discerned by the paper type discerning sensor is converted to a paper type dependency correction coefficient by an LUT memory. Image data of one line is converted to a coefficient of dynamic friction of each heating element. A printing load calculator calculates the printing load of one line based on the coefficient of dynamic friction of one line, the humidity correction coefficient, the paper type correction coefficient, and pressing force of a thermal head. The rotation speed of a feeding motor for feeding a color thermal recording paper is controlled in response to the printing load of each line.