ZxUniden 0 Newbie Poster

I have a problem with a Zebra TLP2742 thermal printer that has been bugging me. After an exhaustive seach for the correct drivers, the printer now prints, but it seems to print on two labels when it should only print on one label! I have checked all of the settings but I seem not to be able to make it print properly. Can anyone help with this rather annoying problem?

Thanks!