Print pages cleanly with the sharpest details on text and simple graphics with the genuine Oki 40629303 black nylon ink ribbon. The Oki 40629303 Microline ribbon is constructed for resiliency and ease of use, with a sturdy cartridge that holds the product in place to prevent inconsistencies and help reduce user intervention. The Oki 40629303 black ribbon cassette has well-formulated ink that can stick easily to paper and some select speciality media. Barcodes, lines, and documents are printed accurately without white gaps, skips, and faded qualities as long as the printer is using an original Oki 40629303 printer ribbon.