US Patent 7619780 Method for performing duplex copying
Patent 7619780 was granted and assigned to Lexmark International, Inc. on November, 2009 by the United States Patent and Trademark Office.
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A method for performing duplex copying of a document having a first side with a first image and a second side with a second image includes scanning only the first side of the document under a first imaging condition to retrieve first information relating to each of the first image and the second image; scanning only the first side of the document under a second imaging condition to retrieve second information relating to each of the first image and the second image; determining from the first information and the second information contents of the first image on the first side of the document; and determining from the first information and the second information contents of the second image on the second side of the document.
US Patent 07619780 Method for performing duplex copying US Patent 7619780 Method for performing duplex copying
US Patent 07619780 Method for performing duplex copying
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