This is a compatible replacement for the Kyocera-Mita TK-592K black laser toner cartridge, providing a standard yield of up to 7,000 pages. Manufactured brand new with a new chip, it serves as an economical alternative to expensive OEM cartridges. The cartridge includes a toner waste box that should be replaced when changing the toner. Using compatible toner cartridges does not void your printer's warranty. We back this product with a 100% Quality Satisfaction Guarantee.