This HP Q3960A Compatible Black Toner Cartridge is fully tested and cleaned to the highest standard. The compatible Q3960A toner offers comparable quality to the original toner cartridges whilst offering big savings and helping the environment at the same time. This HP Q3960A compatible toner cartridge prints approx 5000 pages at 5% average coverage. Colour LaserJet 2550,Colour LaserJet 2550l,Colour LaserJet 2550ln, Colour LaserJet 2550n,Colour LaserJet 2800,Colour LaserJet 2820,Colour LaserJet 2830,Colour LaserJet 2840