| 摘要 |
The present invention provides a method (102-108) and printer system (202-24 0) software (250) for verifying that a document was printed by a printer with a printing subsystem having a printhead cartridge (222), a unique printhead cartridge identifier and having a printhead (304) electronically coupled to a computer (240). The method includes generating (102), by the computer (240), a unique document identification composite of electronic form characters utilizing the unique printhead cartridge identifier and transmitting (104) t he unique document identification composite to the printing subsystem for printing thereof on each print media sheet of the document.
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