Yields up to 200 prints per roll Dual-sided Compatible with PrimacyID Printers YMCKOK color ribbon Designed to guarantee optimum operation of your badge printer without risk of damage Evolis R6F003MD06 YMCKOK ribbons consist of yellow (Y), magenta (M) and cyan (C) panels for printing a full spectrum of colors by combining the colors using varying degrees of heat and the O panel is a thin, clear protective overlay. The two K panels are black resin, typically used for printing text and barcodes.