Secure document printing method and system
AssigneeEastman Kodak Company
InventorsJason Morgan, John F. Crichton, Raymond Rossborough, Timothy G. Armstrong, Matthias H. Regelsberger
Life of this patent
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Abstract
A method and system for printing documents with one or more embedded security features is provided. Security features are embedded in the document by co-printing magnetic and non-magnetic toner on a receiver before fixation by a fixing station. The combination of magnetic and non-magnetic toners in the image results in image elements that easily show alteration or are undetectable by visual means.
Claims14
A method of generating secure documents with good adhesion in a single pass process comprising:
- a. printing a low viscosity toner on a receiver;
- b. coprinting a high viscosity toner, prior to fixing, on the receiver proximate to and overlying at least a portion of the low viscosity toner;
- and
- c. fixing the toners on a fixed print, wherein the low viscosity toner is printed proximate the receiver and the high viscosity toner is coprinted proximate the low viscosity toner to enhance adhesion of the high viscosity toner to the receiver.
A method of generating secure documents having embedded security features, the method comprising:
- a. printing a non-magnetic low viscosity toner on a receiver;
- b. coprinting a magnetic high viscosity toner, prior to fixing, on the receiver proximate to and overlying at least a portion of the non-magnetic low viscosity toner, wherein the printing of the non-magnetic lower viscosity toner on the receiver and the co-printing of magnetic high viscosity toner on the receiver prior to fixing embeds security features into a print;
- and
- c. fixing the non-magnetic low viscosity toner and the magnetic high viscosity toner on a fixed print;
- wherein the non-magnetic low viscosity toner is printed proximate the receiver and the magnetic high viscosity toner is co-printed proximate the low viscosity toner to enhance adhesion of the high viscosity toner to the receiver, and the method further comprises overprinting the non-magnetic low viscosity toner and the magnetic high viscosity toner with a low viscosity toner or a high viscosity toner to provide a uniform gloss level.
Dependencies are inferred from the claim text.