Amazon.com: HP 51X Black High-yield Toner Cartridge | Works with HP LaserJet P3005 Series; HP LaserJet M3027, M3035 MFP Series | Q7551X : Office Products
Original Laser Toner Cartridge Q7551X/51X for HP Printer 3015/3005 Consumable - China Printer Consumable, Laser Toner Cartridge | Made-in-China.com
HP 51X High Yield Black Original LaserJet Toner Cartridge (Q7551X)