Designed to enhance your printer's performance, the genuine Epson C13S051170 black toner works best with your Epson laser printer. It offers an impressive duty cycle, capable of producing up to 20,000 prints at 5% coverage with a single genuine Epson C13S051170 toner cartridge. It dispenses a fine formulation of genuine Epson S051170 printer toner for super fine text and high quality graphics. The genuine Epson S051170 laser toner also boasts an easy-to-install designed for quick replacement and a low cost-per-page ratio to reduce your printing costs.