Cartridge compatible with Samsung ML-1640, ML-2240 Compatible Toner(MLT-D108S) - Walmart.com
Patron Black Samsung 1640 (ML-1640 /2240 /108S) Toner Cartridge, For Laser Printer
Amazon.com: Toner Cartridge MLT-D108S Works for Samsung ML-1640 ML2240 ML2241 ML1641 Series Monochrome Laser Printer, Yields Up to 2,000 Pages Office Products Black : Office Products