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:
Sep. 01, 1992
Filed:
Jul. 13, 1990
Applicant:
Inventors:
Teruhisa Inoue, Shizuoka, JP;
Toshiharu Shimosato, Shizuoka, JP;
Assignee:
Tokyo Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400225 ; 400223 ; 400234 ; 400236 ;
Abstract
A thermal head of a printer is provided to contact a platen through an elongated print paper and an elongated ink ribbon. One end of the ink ribbon is wound and retained on a ribbon core, and the other end is taken up by a take up spool. The print paper and the ink ribbon can be fed back at the same speed by reversely rotating the platen. At the same time, rotation resistance to be applied from the take-up spool to the ink ribbon is removed by a resistance removing device. Further, the ribbon core is reversely rotated by a ribbon core reverse driving device to rewind the ink ribbon, thereby preventing slacking of the ink ribbon.