What Is a Serial Printer?. Before 2000, desktop printers for business had one of two interfaces: serial and parallel. The type of interface dictated the type of cable you used to connect the ...

This pattern, hidden in plain sight, contains the printer’s serial number, and the date and time the documents were printed, making you more accountable than you would like to believe.

Authorities worldwide can track down counterfeiters with a hidden feature in color laser printers. Every print contains a hidden code containing information about the printer it was printed on. It ...

The remaining dots in the grid are used to convey information about the document and its source, including printer model, printer configuration, printer serial number, and the date and time the ...