This SuppliesMAX Toner Cartridge is Designed to be Compatible with the Copystar TK-899K and is Guaranteed to Match and Outlast the OEM Version ; Designed for use in the USA ; 12000 Page Yield on 5% Page Coverage Model: SuppliesMAX Copystar TK-899K Toner Cartridge Color: Black Yield: 12000 Pages Machine Compatibility: See overview tab Manufacturer Warranty: 30 DAYS Our compatible toner, inkjet cartridges, ribbons, copier and other supplies are constructed to original OEM specifications. Guaranteed Superior Quality to Meet or Exceed High Priced OEM Products. Product packing may vary but it will not affect quality and warranty.