Amazon.com: LxTek Compatible Toner Cartridge Replacement for Lexmark 50F1000 to use with MS610dn MS510dn MS415dn MS610de MS310d MS312dn MS410dn MS310dn MS410d Printers (Black, 1 Pack) : Office Products
Lexmark MS312, MS415 Laser Toner Cartridge Black
microMICR TLN 501 Black compatible MICR toner cartridge for Lexmark MS310 MS312 MS315 MS410 MS415 MS510 MS610 - Office Depot
Be Green Ink Compatible Replacement Black Toner Cartridge for Lexmark MS310dn MS312dn MS315dn MS410dn MS415dn MS510dn MS610dn 50F1H00 Black Toner (2 Pack 5,000 High Yield) Ink Cartridges (Aftermarket) - Newegg.com