Enhance the performance of your Phaser 850 printer with the genuine Tektronix Phaser 850 Colorstix Ink Cartridges. Known for their reliability and quality, these black cartridges are designed to deliver consistent, smudge-free professional quality text and images. This package includes three cartridges, ensuring that you have multiple chances to produce high-quality prints without the need for refills. Crafted in the United States, these original cartridges are compatible with both Tektronix and Xerox printers, making them a versatile addition to your printing needs. With an expiration date that is none, you can rest assured of their lasting performance, making them a practical choice for both home and office use.