The HP 59X high capacity black toner, offer the very lowest cost per page of any cartridge for your printer. With an estimated yield of 10,000 prints, each CF259X is a purchase that you will not regret.In addition to the highest capacity Hewlett Packard also offer the best quality results from the 59X toner cartridge. The Hewlett Packard JetIntelligence used in the production of the CF259X means the cartridge helps you machine print faster and even use up less energy.