Serialized original print
AssigneeHewlett-Packard Development Company, L.P.
InventorKevin G. Currans
Life of this patent
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Abstract
The present invention provides a method, printer, system and software for verifying that a document was printed by a printer with a printing subsystem having a printhead cartridge with a unique printhead cartridge identifier and having a printhead electronically coupled to a computer. The method includes generating, by the computer, a unique document identification composite of electronic form characters utilizing the unique printhead cartridge identifier and transmitting the unique document identification composite to the printing subsystem for printing thereof on each print media sheet of the document.
Claims48
A method of verifying that a document was printed using a printer with a printing subsystem having an inkjet a printhead cartridge with a unique printhead cartridge identifier and having a printhead electronically coupled to a computer, comprising the steps of:
- generating, by the computer, a unique document identification composite of electronic form characters utilizing the unique printhead cartridge identifier;
- and
- transmitting the unique document identification composite to the printing subsystem for printing thereof on each print media sheet of the document.
A printer for printing a document that is verifiable as an original print document wherein the printer includes a printhead with an inkjet a printhead cartridge having a unique printhead cartridge identifier, wherein the printhead is coupled to a controller that receives signals from a printer computer that generates a unique document identification composite utilizing the unique printhead cartridge identifier and sends signals to the controller to direct the printhead to print the unique document identification composite in accordance with a predetermined document identification composite positioning, and wherein each print media sheet for the document is further positioned by a platen motor that receives position control signals from a position controller coupled to the printer computer.
A system for verifying that an original document was printed using a specified printer, the system having a printing subsystem with a printhead cartridge with a unique printhead cartridge identifier and having a printhead electronically coupled to a computer, the printing subsystem comprising:
- a unique document identification composite generating system of a printer computer, wherein the printer computer is coupled to a drop-firing controller and a position controller, for generating a unique document identification composite of electronic form characters utilizing the unique printhead cartridge identifier and sending print signals to the drop-firing controller to initiate control signals for printing of the unique document identification composite and the printer computer generates position control signals to the position controller in accordance with predetermined document identification composite positioning;
- wherein the drop-firing controller is, coupled to a printhead and is, for transmitting print signals for the unique document identification composite to the printhead;
- wherein the printhead is coupled to the drop-firing controller, a power supply and a carriage motor and is, for printing of the unique document identification composite on each print media sheet of the document;
- wherein the carriage motor is, coupled to the position controller and is, for positioning the printhead in accordance with signals from the position controller;
- and
- wherein the position controller is, coupled to a platen motor, the carriage motor and the printer computer, and is for, in response to the position control signals, controlling the platen motor and the carriage motor to position each print media sheet of the document in accordance with the predetermined document identification composite positioning.
A computer-readable medium having computer-executable instructions for providing for verification that an original document was printed using a specified printer by performing the steps of:
- generating, by the computer, a unique document identification composite of electronic form characters utilizing a unique inkjet printhead cartridge identifier;
- and
- transmitting the unique document identification composite to the printing subsystem for printing thereof on each print media sheet of the document.
Dependencies are inferred from the claim text.