Zebra ZC350 KDO Ribbon | Prints 700 Images | 800350-320EMZebra KdO Monochrome Ribbon for ZC350 Prints 700 Cards 800350 320EM The Zebra KdO Ribbon (800350 320EM) is a genuine monochrome ribbon designed specifically for the Zebra ZC350 ID card printer. It features a black dye sublimation (Kd) panel for printing smooth greyscale photo quality images, and a clear overlay (O) panel that protects the printed surface from everyday wear, UV fading, and scratches. With a print yield of up to 700 single sided cards,