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:
Oct. 31, 2000

Filed:

Apr. 22, 1999
Applicant:
Inventors:

Stephan Gunther, Berlin, DE;

Wolfgang Thiel, Berlin, DE;

Assignee:

Francotypo-Postalia AG & Co., Birkenwerder, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ;
U.S. Cl.
CPC ...
347217 ; 400249 ;
Abstract

A thermal transfer printer has a thermal print head with a number of thermal print elements which are operated by power electronics and controlled by a control unit to print an imprint on a medium by thermally transferring ink from an inking ribbon to the medium by energization of selected print elements by the control unit, with the inking ribbon and the medium being movably disposed between the print head and a counter-roller with the inking ribbon being unwound from a supply reel and wound onto a take-up reel. The end of the inking ribbon is identified in a method and apparatus wherein the number of imprints produced by said inking ribbon is counted, and a signal is emitted after a predetermined number of said imprints has been counted.


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