Compatible Developer Unit for Lexmark CS421 — 78C0Z10 / 78C0Z20 / 78C0Z30 / 78C0Z40 — Fits CS321 CS421 CS521 CS621 CS622 CX421 CX521

Replacement developer unit compatible with Lexmark CS421 series. This unit covers part numbers 78C0Z10, 78C0Z20, 78C0Z30 and 78C0Z40 and is made to work with the following Lexmark printers: CS321, CS421, CS521, CS621, CS622, CX421 and CX521. Simple to install and engineered as a direct-fit replacement for restoring developer performance in the listed models.