The YMC are the three panels of color. Standing for yellow,magenta,and cyan,these panels orderly move over the card and provide the amount of color necessary to produce a full color image where needed and other colors desired according to the badge design.
Once the color has been placed on the card,the K panel of the id card printer ribbon passes over the card to provide resin black printing for black text and bar codes.
Using a YMCKO ribbon,the card is completed after the o panel has been applied to the card. This overlay panel is a clear protective panel that covers the colors on the badge.