Oki 01126301 black fabric ribbon for use with ML5500/20/21/90/91 9/24 printers. Install a genuine OKI ink ribbon in your ML5500 series Microline dot matrix printer for top quality results. This ribbon is designed for an easy changeover for quick installation. The high quality nylon construction ensures minimal wear, offering a lifespan of up to 3 million characters per ribbon. It uses premium-quality inks with a metered output for consistent quality, precisely controlled to ensure even coverage for each and every character.