Fargo 045200 YMCKO Ribbon Cartridge w/Cleaning Roller: Full-Color Ribbon with Resin Black and Clear Overlay Panel – 500 Images, for the Fargo DTC4500 printer. This ribbon will print 500 cards on one side, or 250 cards on both sides. This is a YMCKO ribbon, which means it has a Yellow panel, Magenta panel, Cyan panel, Resin Black panel, clear overlay panel and then starts again with the Yellow panel. A YMCKO ribbon will still only print 250 cards, even if only black is printed on the back side of the card. If you wish to print color on the front of the cards and black only on the back of the cards, look for a YMCKOK ribbon, in this case, the Fargo 045210 ribbon. This is a Genuine HID Product. Beware that counterfeits may lead to printer damage and will void the warranty.