Amazon.com : LD Products Compatible Laser Drum Unit Replacement for Okidata Type B2 44574301 for use in MB & OKI B Printers: MB461 MFP, MB471, MB471W, B411d, B411dn, B431d, and B431dn :
Oki B411/B431 Black Generic Toner Cartridge (44574702) - Toner Corporation