This is not a function of the printer, it is a function of the softweare driving the printer. ie Zebra Designer, this can be obtained as a free download, contact www.lancerlabels.co.uk for advice on how to do this. Experts in Zebra printer problem solving.
check the label megerments at driver, or reset printer to default settings. you can also print settings direcly from printer without connect with computer, if still doing than, its possible the printhead its faulty. but before replacet please run test after factory default. hope it helps. Paulo.