Samsung MLT-D108S - Black - original - toner cartridge (SU786A) - for Samsung ML-1640, ML-1641, ML-1642, ML-1645, ML-2240, ML-2241, ML-2451 - Walmart.com
How to Replace Toner Cartridge ML2010 For Samsung and Dell Printers - YouTube
Amazon.com: SuperInk Compatible Toner Cartridge Replacement for Samsung MLT-D108S MLTD108S to use with ML-2240 ML-1640 (Black, 1-Pack) : Office Products