Customize and enhance your zebra printers with zbi 20 available as an optional programming language zbi 20 allows zebra printers to run applications prompt users through control panel commands take input from scales scanners and other peripherals all without a pc or network connection zbi 20 works with the zpl printer command language so that printers can understand non zpl data streams and convert them into labels that means the zebra printer can create bar codes and text from inpu