Lexmark Unison Toner Cartridge - Black - Laser - 3000 Pages - 1 Pack
Lexmark (55B100E) MS331dn MS431adn MS431dn MS431dw MX331adn MX431ad MX431adw Corporate Standard Yield Contract Toner Cartridge (3000 Yield)
Technical Specifications:
Print Technology: LaserPrint Color: BlackTypical Print Yield: 3000 PagesCompatibility:
Lexmark Printers: MS331dn, MS431dn, MS431dw