HP 644A (Q6462A) Yellow Original Toner Cartridge for HP Color LaserJet 4730 HP 644A toner cartridges work with: HP Color LaserJet 4730. Original HP toner cartridges produce an average of 71% more usable pages than non-HP cartridges. Cartridge yield (approx.): 12,000 pages 644A toner is designed to work with your HP printer for high quality, reliable results every print. What's in the Box: New Original HP toner cartridge Color: Yellow