Do it Wiser Compatible Toner For Ricoh MP C305 MP C305SPF MP C305SP | 841621 841595 851596 851597 (5 Pack) Estimated page yield: Black 12,000 pages and Colors 4,000 pages at 5% coverage Compatible with part numbers: Ricoh 841621 | Ricoh 841591 | Ricoh 841592 | Ricoh 841593 For use in Ricoh Aficio MP C305SP | Ricoh Aficio MP C305SPF | Lanier MP C305SP | Lanier MP C305SPF | Savin MP C305SP | Savin MP C305SPF Do it Wiser Smart Toner Cartridges are covered by 1 year warranty against defects Cartridges certified to work | ISO 9001 quality assurance | ISO 14001 environmental management | RoHS Lead Free