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:
Dec. 01, 1992

Filed:

Feb. 07, 1992
Applicant:
Inventors:

Makoto Murakoshi, Tokyo, JP;

Masamichi Sato, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400120 ; 400 82 ; 346 46 ;
Abstract

A color thermal printer has a character printing thermal head and a half-tone color image printing thermal head. The character printing thermal head records a black character on an image receiving sheet by heating the back surface of a black ink film. The half-tone color image printing thermal head records a color image on the image receiving sheet by heating the back surface of a color ink film having at least cyan, magenta, and yellow ink areas cyclically formed thereon. A heating element of the thermal head of conventional size is used for character printing, and a heating element with a smaller width than that of a conventional thermal head in the sub scan direction is used for half-tone color image printing.


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