Enhance the performance of your Okidata printers with the Ribbon Printer 42377801 from OKI Data®. Specially designed for the ML420, 421, 490, and 491 models, this ribbon ensures high-quality printing results every time. With its easy installation and long-lasting durability, this ribbon is perfect for businesses and individuals who rely on their printers for professional documents. Trust OKI Data® to deliver exceptional printing solutions that meet your needs.