55B1000 Black Toner Cartridge (2-Pack) & 56F1000 High-Yield Black Toner — Replacement for Lexmark MS/MS and MX Series — 6,500 Pages (5% A4/Letter)

Package Contents: 1-Pack 56F1000 Black High Yield Toner Cartridge, MS521 Black Toner Cartridge. Page Yield: 6,500 pages per Toner at 5% coverage (Letter/A4). Compatible Printers: MS321dn, MS331dn, MS421dn, MS421dw, MS431dn, MS431dw, MS521dn, MS621dn, MS622de, MX321adn, MX321adw, MX331adn, MX421ade, MX431adn, MX431adw, MX432adwe, MX521ade, MX521de, MX522adhe, MX622ade, MX622adhe. This high-yield black toner is engineered to deliver consistent, sharp output and dependable performance with your Lexmark machine. Ideal for busy offices, it maintains strong text density and reliable page yields while integrating with your printer’s systems. Technical consultation is available — if you have any questions about fit or performance, please contact the seller directly.