The Fargo R3012 - K monochrome black ribbon with varnish overlay delivers crisp clean monochrome line art,text, or barcodes. Black resin ink is required for printing readable barcodes. At 500 prints per roll this cartridge will deliver stunning results at an affordable price. Fargo R3012 black ribbon is for use with the Fargo Pebble, Pebble 3, Pebble 4, Quantom, and Securion ID card printers.