Do it Wiser Compatible Toner Cartridge for Ricoh Aficio SP C820dn SP C821dn SPC820 SPC821dn - 821026 821027 821028 821029 (Black Cyan Magenta Yellow, 4-Pack) Compatible with part number: 821026 821029 821028 821027 For use in Ricoh Aficio SP C820DN SP C821DN Our Do it Wiser smart toner cartridges are covered by a 1 year warranty against defects Cartridges certified to work | ISO 9001 quality assurance | ISO 14001 environmental management | RoHS Lead Free Estimated page yield: K:20,000|C:15,000|M:15,000|Y:15,000 pages (depends on printer and usage) Black cartridge 20,000pages Cyan cartridge 15,000 pages Magentacartridge 15,000 pages Yellowcartridge 15,000 pages SP C820DN SP C821DN 821026 821029 821028 821027