1 Pack Compatible Okidata 44574901 (B431) Black High Yield Replacement Toner Cartridge for the Okidata B431d, B431dn, MB461 MFP, MB471, MB471W – Laser Tek Services
Peel & Stick" Drum Reset Chip for OKI B411 B431 MB461 MB471 MB491 d d – SUPER EASY DRUM RESET
2021 UPDATED - How to reset / clear image drum counter on OKI laser printer for FREE - YouTube