Printing without trouble to leave you with the very best results, the HP No. 647A Black LaserJet Toner Cartridge is the perfect, all-round solution to home or office printing. HP understands its machines better than anyone else and they utilise this expertise to guarantee that you get the very clearest documents without difficulty. The cartridge is easily installed into your machine, allowing you to get the very best results. It's packed with enough toner to print up to 8,500 pages.