For use in: Ricoh Lanier Savin SP C830, SP C831 (Black) Replaces OEM part numbers: SP C830A, 821117, 821181 Toner kit contains 2 black toner cartridges Same Yield as the Original: 23,500 pages each Black cartridge Formulated and manufactured to produce yield equivalent to the original according to ISO/IEC 19798 standard testing procedures.