For use in Ricoh Aficio Lanier Savin MP C2003, MP C2503, MP C2004, MP C2004ex, MP C2504, MP C2504ex Printers Compatible with RICOH part numbers: 841918 for black, 841919/841922 for yellow, 841920/841923 for magenta, 841921/841924 for cyan PREMIUM Toner kit contains 1 of each CMYK cartridge PAGE YIELD: 15,000 pages/black and 9,500 pages/color, based on the ISO/IEC 19798 industry standard of 5% page coverage