This valuepack contains one each of our remanufactured 44064012, 44064011, 44064010 and 44064009 imaging drum units. This pack further decreases the cost per page of running all compatible printers including the Oki C821n.This remanufactured OKI 440640XX multipack reuses many rollers, cogs and parts from the genuine articles. These parts have been closely examined and cleaned by our manufacturer, before being combines with brand new components to create our own refurbished OKI 440640XX imaging drum units.The mix of old and new within the alternative to the OKI 440640XX range, seamlessly transfers powder from the corresponding toner cartridge into your printer, so it can be firmly fused to paper. This remanufactured OKI 440640XX imaging drum multipack maintains the same astounding 20,000 page yield and is compatible with all of the same laser printers including the Oki MC861cdtn.