Patent ID: 7110126
Filing Date: 2006-09-19
Classification: A63F,B41J,B42C,G01C,G06F,G06K,G09B,H04N

Abstract:
1. A method enabling the copying of documents, the method including the steps of: scanning a document that includes first visible markings associated with digital ink, second visible markings not associated with digital ink, and first invisible coded data indicative of an identity of the document, and forming a digital image of the document; detecting the first invisible coded data; accessing stored data representing the content of the document; computing a difference between the digital image of the document and a rendered image determined from the stored data; determining image data for the second markings using the computed difference; archiving the image data for the second markings with the stored data; and printing using a printer a copy of the document from the stored data, said copy including third visible markings associated with digital ink and, at the same time, printing on the printed copy, using the same printer, second invisible coded data indicative of an identity of the copy, wherein the first visible markings associated with digital ink are duplicated on the printed copy of the document as the third visible markings associated with digital ink, and the second visible markings not associated with digital ink are not duplicated on the printed copy of the document.