Enhance your printing efficiency with the OKI Microline Self-Inking Black Ribbon. Designed specifically for the OKI Microline 420, 421, 490, and 491 printers, this high-quality ribbon delivers up to 4 million characters, ensuring long-lasting performance and sharp, crisp prints.

• Compatible with OKI Microline 420, 421, 490, 491 models
• Delivers up to 4 million characters
• Self-inking design for easy installation
• Produces sharp and clear text quality
• Ideal for heavy printing tasks

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OKI Microline Self-Inking Black Ribbon - 4M Characters