- Genuine OKI ribbon, 5-pack
- Self-inking black nylon ribbon cartridge
- Yields approx. 4M characters each
- Compatible with Microline 420, 421, 490, 491 (ML420, ML421, ML490, ML491)
Experience exceptional print quality throughout the life of the ribbon. Manufactured to precise tolerances to eliminate binding and wear on the ribbon drive mechanism. Utilizes the highest quality ink to reduce friction and premature printhead wear.