Magicard ID Card Ribbon Full Color (YMCKK) Ribbon, 750 images. The ribbon is used to print in a variety of colors: yellow (Y), magenta (M), cyan (C), and black (K). The second (K) allows for black print on the back of the card. This ribbon is used to print text and full color images on one side and black on the back side of the card. Compatible with the Prima 4 ID card Printer