Next-GEN Supplies &copy; Remanufactured Replacement for HP 502A Toner Cartridge Set - (Black, Cyan, Yellow, Magenta) Q6470A, Q6471A, Q6472A, Q6473A - Compatible Replacement for HP LaserJet 3600 3600dn 3600n 3800 3800dn 3800dtn 3800n Cp3505 Cp3505dn Cp3505n Cp3505x - (Black:6000/Each Color:6000 Page Yield) Next-GEN Supplies  offers Remanufactured Replacement toner and inkjet cartridges and provide 100% SATISFACTION GUARANTEE for all purchases. All Next-GEN Supplies  compatible toner and ink cartridges are an excellent alternative because they work just as well as the original cartridge brands, but cost half the price. 1-Year Hassle-Free Warranty only with Next-GEN Supplies . Clear, sharp and consistently accurate high quality printouts with ISO9001, 115001 Certified Factory to Meet or Exceed OEM Standards. Page Yield : Black : 6000, Color : 6000 Each, Color : Black, Cyan, Yellow, Magenta Replaces : Q6470A, Q6471A, Q6472A, Q6473A