CX421 Developer Kit 78C0D10 78C0D20 78C0D30 78C0D40 — Compatible with Lexmark C2240 C2325 C2325dw C2425dw C2535 C2535dw C2640 CS521dn CS421dn CS521 CX421adn 522ade Printers

We offer the CX421 Developer Kit series (78C0D10, 78C0D20, 78C0D30, 78C0D40) designed for reliable performance. These Developer Kits are compatible with the following Lexmark models: C2240, C2325, C2325dw, C2425dw, C2535, C2535dw, C2640, CS521dn, CS421dn, CS521, CX421adn, 522ade, CS622de, CX622ade, CX625, MC2325adw, MC2425, MC2425adw, MC2535, MC2535adwe, MC2640adwe, XC2235, XC2240, and XC4240 printers. Each kit is thoroughly tested to deliver sharp, legible text and vivid, lifelike images — producing crisp fonts and realistic color reproduction. Before completing your purchase, please double-check both the Developer Kit part number and your printer model to ensure compatibility. We place high value on customer satisfaction; our Iris brand has earned a loyal following thanks to consistent quality and dependable results.