For use in Ricoh MPC3500/E1/SPF, MPC4500/E1/SPF, Lanier LD435C/LD445C, Savin C3535/C4540/C4540SPF printers; NOTE: For use in 'MP C' machines, not 'IM C' Quality Compatible Toner replacement for Ricoh Type MPC4500A, 888604, 888605, 888606, 888607 PREMIUM Toner kit contains 1 of each CMYK cartridge: 510gm black, 400 gm cyan, 400 gm magenta, 400 gm yellow;Made in USA Toner (not imported) Page Yield: 23,000 pages/black, 17,000 pages for each color, based on the ISO/IEC 19798 industry standard of 5% page coverage