For use in models: IM C3000, IM C3500 (note: not for Models with MP C prefix) Compatible Toner replacement for Ricoh toner Type IM C3500, 842251, 842254, 842253, 842252 PREMIUM Toner kit contains 4 cartridges; MADE IN USA (not imported) 31,000 pages per black cartridge, 19,000 pages per color cartridge; based on the ISO/IEC 19798 industry standard of 5% page coverage