Seamless design, using the highest quality materials and lubricants, minimises printhead wear. Features: • Minimal wear due to high quality ribbon material • Metered ink flow for consistent, high quality output • Precisely controlled ink viscosity for optimum coverage. • Precisely tooled ribbon shield minimises paper jams • Up to 4 million characters in draft print modeCompatible Printers: OKI ML 590 Series, OKI ML 591 Elite, Unisys AP 1357, OKI ML 590, OKI ML 591 n, Unisys AP 1359, OKI Microline 590 n, OKI Microline 591, OKI ML 590 n, OKI Microline 590 Series, OKI Microline 591 n, OKI Microline 590, OKI ML 590 Elite, OKI ML 591