Zebra ZXP Series 7 - IX Series YMCKO Colour Ribbon 750 Images/roll. The ribbon is used to print in a variety of colours: yellow (Y), magenta (M), cyan (C), and black (K). The remaining overlay (O) provides an extra layer of protection for the card. This ribbon used for printing text and full colour images on one or both sides of a card. This ribbon is compatible with the ZXP Series 7 Printer.