HP 51X (Q7551X) Black Toner Cartridge High Yield, 2 Toner Cartridges (Q7551XD). HP 51X (Q7551XD) toner cartridges work with: HP LaserJet P3005, M3035, M3027. Save up to 25% with high-yield HP toner. HP 51X toner cartridge yield (approx.) per cartridge: 13,000 pages. Original HP toner cartridges are specially designed to work with your printer to consistently deliver standout results throughout the life of your cartridge. Ensure that your printing is right the first time and every time with HP printer toner: 51X toner. What's in the box: 2 New Original HP 51X (Q7551X) toner cartidges in one package (Q7551XD) Color: Black.