Do it Wiser Compatible Toner Cartridge Replacement for Ricoh Aficio SP C830DN SP C831DN | 821181 (Black) Estimated page yield: Black 23,500 pages (depends on printer and usage) For use in Ricoh Aficio SP C830 | Ricoh Aficio SP C830dn | Ricoh Aficio SP C831 | Ricoh Aficio SP C831dn | Lanier SP C830dn | Lanier SP C831dn | Savin SP C830dn | Savin SP C831dn Compatible with part numbers: 821181 Our Do it wiser smart toner cartridges are covered by a 1 year warranty against defects Cartridges certified to work | ISO 9001 quality assurance | ISO 14001 environmental management | RoHS Lead Free 1 Black 23,500pages Ricoh Aficio SP C830 Ricoh Aficio SP C830dn Ricoh Aficio SP C831 Ricoh Aficio SP C831dn Lanier SP C830dn Lanier SP C831dn Savin SP C830dn Savin SP C831dn