As the original manufacturer of your printing equipment, Hewlett Packard offer the best possible choice with the C8543X and the rest of the products in this range. Buying genuine Hewlett Packard consumables like the HP 43X ensures that life can be restored to your printer within just a few seconds, minimising downtime and ensuring compatibility.This HP 43X toner has been carefully crafted to be compatible with the HP LaserJet M9050 and all other printers that can be found listed on this page. Hewlett Packard estimate that this C8543X black toner cartridge will last an estimated 30,000 prints, based on an industry standard page cartridge and regular use.