Cyan Toner replacement for Ricoh Type MP C3001, MP C3501, 841423 Toner kit contains 1 x 370 gm cartridge Yield: 16,000 pages, based on the ISO/IEC 19798 industry standard of 5% page coverage 22,500 page yield/black, 16,000 page yield for each color, based on the ISO/IEC 19798 industry standard of 5% page coverage