High-Yield Replacement Drum Unit 55B0ZA0 — Compatible with Lexmark MS331 / MS331dn, B3340dw, B3442dw, MS431dn

High-Yield replacement drum unit 55B0ZA0 compatible with select Lexmark monochrome printers. This 55B0ZA0 drum unit fits the Lexmark MS331 series and is compatible with B3340dw, MS331dn, B3442dw and MS431dn models. Easy to install and intended as a direct replacement to restore consistent black-and-white print quality for the listed Lexmark devices.