The genuine lexmark 36xl high capacity black return program ink cartridge 018c2170e has been designed to produce the highest print quality for a wide range of business documents and graphics the 36xl cartridge prints sharp consistent black text and print quality is maintained by using redundant nozzles on the printhead in case one becomes clogged or fails the 018c2170e high capacity cartridge helps you to cut printing costs by delivering a cheaper cost per page and minimising replacements