THEY ARE PRODUCED BY A DIFFERENT SUPPLIER THAN THE 'NON ECO' SERIES. 12 MONTH WARRANTY!Compatible PrintersSamsung ML-1660 / ML-1660 N / ML-1660 Series / ML-1665 / ML-1666 / ML-1670 / ML-1672 / ML-1674 / ML-1675 / ML-1678 / ML-1860 / ML-1865 / ML-1865 W SCX SCX SCX-3000 / SCX-3200 / SCX-3200 Series / SCX-3200 W / SCX-3205 / SCX-3205 W.
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