For use in Ricoh MP C306, C307, C406, C407 (CMYK) Replaces OEM part numbers: 842091,842092, 842093, 842094, 842207, 842208, 842209, 842210 Toner kit contains 1 of each CMYK cartridge: 270gm black, 136 gm cyan, 156 gm magenta, 151 gm yellow Made in USA Toner 17.5 K yield/black, 8 K yield for each color, based on the ISO/IEC 19798 industry standard of 5% page coverage