Do it Wiser Smart Toners Cartridges can help you reduce printing cost while delivering bright colors and sharp text. Compatible with part number Ricoh 402809 Ricoh 406997. For use in Ricoh Aficio SP4110N, Ricoh Aficio SP4110SF, Ricoh Aficio SP4210N, Ricoh Aficio SP4100N, Ricoh Aficio SP4100, Ricoh Aficio SP4100SF, Ricoh Aficio SP4100N-KP, Ricoh Aficio SP4310, Ricoh Aficio SP4310N, Gestetner P7031N, Gestetner P7035N, Lanier LP131n, Lanier LP131n-KP, Lanier LP136n, Lanier LP136n-KP, Lanier LP37N, Lanier SP 4310N, Savin MLP31n, Savin MLP36N, Savin MLP36N-KP, Savin MLP37N. Each cartridge yield 15,000 pages at 5% coverage. Do it Wiser Smart Toners Cartridges are guaranteed to work flawlessly, certified by ISO 9001 international quality standard, ISO 14001 environmental management, and free of lead and hazardous materials.