Do it Wiser Compatible Ricoh 406478 Toner Cartridge for Ricoh Aficio SP C231N SP C231SF SP C232DN SP C232SF SP C242DN SP C242SF SP C310 SP C310A SP C311N SP C312DN SP C320DN - Yellow - 6,000 Pages Estimated page yield: 6,000 pages (depends on printer and usage) Compatible with Ricoh Part Number: 406478 Compatible printer models: Ricoh Aficio SP C231N SP C231SF SP C232DN SP C232SF SP C242DN SP C242SF SP C310 SP C310A SP C311N SP C312DN SP C320DN 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