ESTON 2 Pack 104 FX9 Compatible Toner for MF4150 4270 4350d D420 Packing List: 2 Pack 104 FX-9 FX-10 Black Toner Cartridge Average Yields: 2,000 pages at 5% coverage Type: Premium Compatible (NOT Made By ) Printer Model: FaxPhone L90; FaxPhone L100; FaxPhone L120; ImageClass D420; ImageClass D480; ImageClass MF4150; ImageClass MF4270; ImageClass MF4350d; ImageClass MF4370dn; ImageClass MF4690 GUARANTEED : If for any reason you are not satisfied with our products, you can return or exchange within 2 weeks of receiving shipment. Your purchase is covered by a 1 year replacement warranty if the product doesn't work well.