With this Original HP 42X (Q5942XD) Black Toner Cartridge twinpack you can achieve extremely high quality, sharp text with smooth greyscale images for the life of the cartridge. The Genuine Q5942XD Toner Cartridge achieves this by using Hewlett Packards microfine black Toner formulation, which ensures long-lasting, laser sharp prints.The Original HP 42X Black Toner Cartridge twinpack provides great value for money, with this twin pack deal you will receive 2x high capacity Q5942XD Toner Cartridges that have a page yield of 20,000 each (based on a 5% coverage). The Q5942XD Cartridge is designed to be used in a range of HP Printers a complete list of compatible Printers can be found on this page. All of our Original Cartridges come with our 100% satisfaction guarantee.