MS321 (56F1000) Black Toner Cartridge — Compatible with Lexmark MS321dn MS421dn MS421dw MS521dn MS621dn MS622de MX321adn MX321adw MX421ade MX521ade MX521de MX522adhe MX622ade MX622adhe | High Yield 6,000 Pages | Built-in Chip | 1 Pack

Compatibility: Fits Lexmark models MS321dn, MS421dn, MS421dw, MS521dn, MS621dn, MS622de, MX321adn, MX321adw, MX421ade, MX521ade, MX521de, MX522adhe, MX622ade, and MX622adhe. High page yield: Produces up to 6,000 pages per black cartridge (at 5% coverage/A4 paper), reducing how often you need replacements. Built-in smart chip: Each cartridge includes an upgraded Smart Chip to guarantee full working compatibility with your printer and trouble-free installation. Print quality and reliability: Formulated to deliver sharp text, clear images, and consistent operation with no fading or leakage. Easy setup tip: For optimal toner flow and uniform particle distribution, gently shake the cartridge up and down before installing.