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:
Jun. 09, 1987
Filed:
Mar. 20, 1985
Applicant:
Inventors:
Yoshio Uchikata, Yokohama, JP;
Mineo Nozaki, Kawasaki, JP;
Osamu Asakura, Tokyo, JP;
Masasumi Nagashima, Yokosuka, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; B41J / ;
U.S. Cl.
CPC ...
346 / ; 400120 ;
Abstract
A thermal printer adapted for multicolor printing is provided with a thermal head which is driven according to information of color of character or image to be printed. The color information is previously stored in a memory. The multicolor ribbon used in the printer is composed of different color inks having different melting points coated in layers on a base film. In driving the thermal head, the amount of thermal energy generated from it is changed by changing the applied voltage to it and/or the driving time of it to perform multicolor printing with the multicolor ink ribbon.