Tri-color pigment-based ink includes Cyan, Magenta, and Yellow in a single cartridge. Prints in monochrome black as well. For use with the LX910 Color Label Printers. Please Note: Your printer driver may require an update in order for this cartridge to function properly. To update, open Primera PrintHub. Click on the blue “Settings” button in the lower left corner of PrintHub. Choose the “Update” tab. Click on the “Check for Updates” button.