SPS ML1640 / 1640 / ML-1640 Black Toner Cartridge for Samsung Printer Black Ink Toner - SPS : Flipkart.com
Samsung MLT D108S Black original toner cartridge SU786A for Samsung ML 1640 ML 1641 ML 1642 ML 1645 ML 2240 ML 2241 ML 2451 - Office Depot
SPS ML1640 / 1640 / ML-1640 Black Toner Cartridge for Samsung Printer Black Ink Toner - SPS : Flipkart.com
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