Do it Wiser Compatible Toner for Ricoh Aficio MP C3001 MP C2800 MP C3501 MP C3300-841578 841423 841422 841421 - Black 22,500 Pages Colors 16,000 Pages (4-Pack) Estimated page yield: Black is 22,500 pages and Colors 16,000 pages each cartridge (at 5% coverage, depends on printer and usage) Compatible with Ricoh part numbers: 841578 for black, 841423 for cyan, 841422 for magenta, 841421 for yellow. Black cartridge is compatible with printers: Ricoh Aficio MP C3001, MP3501; Lanier LD630, LD635; Savin C9130, C9135. Color cartridges are suitable for printer models: Ricoh Aficio MP C3001, MP C2800, MP C3501, MP C3001, MP C3501, Gestetner MP C3001, Gestetner MP C3501, Lanier LD630C, Lanier LD635C, Savin C9130, Savin C9135 printers. Our Do it Wiser smart toner cartridges are covered by a 1 year warranty against defects 1 Black cartridge22,500pages 1 Cyan cartridge 16,000 pages 1 Magentacartridge 16,000 pages 1 Yellowcartridge 16,000 pages Ricoh Aficio MP C2800 / 3300 / 3001 / 3501 Gestetner MP C2800 / 3000 Lanier LD528 / 533 / 630 / 635 Savin C2828 / 3333 / 9130 / 9135 841918 for black. 841919 for yellow. 841920 for magenta. 841921 for cyan.