Compatible Toner Cartridge for Lexmark MS310D MS310DN MS312DN - Black, High Yield : Amazon.co.uk: Computers & Accessories
OEM Drum Lexmark MS310/MX310 Black (50F0Z00)
Be Green Ink 50F1H00 501H Toner Cartridge Compatible Replacement with Lexmark MS310dn MS312dn MS315dn MS410dn MS415dn MS510dn (1 Black 5,000 High Yield) - Newegg.com