Toner is one of the most complex products in remanufactured cartridges and has a dramatic impact on print performance. Our toner is initially formulated to function with OEM cartridges and then adjusted to function with quality aftermarket components. Our strict quality control processes to ensure that its toners meet standards of both OEM and remanufactured components. Toner for HP P3005, 335 g.HP Q7551A (use 335 g) HP Q7551X (use 640 g)Compatible with:Q7551A and Q7551X (LaserJet P3005, P3005d, P3005dn, P3005n, P3005x, M3027 MFP, M3027x MFP, M3035 MFP, M3035xs MFP)