IDP Smart 650634 YMCKO Colour Ribbon With Cleaning Roller - 250 Printshe IDP Smart 650634 is a full color, YMCKO ribbon, with a yield of 250 prints, for use with the IDP Smart 30 & IDP Smart 50 ranges. This printer ribbon is made up of 6 panels, 3 color panels of yellow (Y), magenta (M) and cyan (C) that combine to give you full color images, a black (K) panel which you can use to print text, line art and barcodes and an overlay (O) panel which gives your cards a clear protective layer that offers protection against