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Method and apparatus for thermal printing of plastic cards

  • US 4,650,350 A
  • Filed: 02/22/1985
  • Issued: 03/17/1987
  • Est. Priority Date: 02/23/1984
  • Status: Expired due to Term
First Claim
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1. A printing device for the production of tamperproof printing on a plastic surface, comprising:

  • a thermal, nonimpact, nonembedding printing head of the kind which carries dot printing elements which are individually selectively heated and nonheated dot printing elements for printing part of a character to be printed;

    a color transmitting embossing foil and means interposing said embossing foil between said selectively heated and nonheated dot printing elements and the plastic surface to be printed; and

    low pressure pressing means engageable with said printing head for pressing, by selectively heated and nonheated dot printing elements, of said foil against said plastic surface to be printed.

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