The genuine Lexmark B252X00 is part of the industry leaders unique Return Programme that reduces the cost of purchasing this black toner cartridge. By purchasing this eco-friendly toner you agree to return the cartridge (for free) to be recycled afterwards. As a extra high yield capacity original Lexmark toner cartridge, the B252X00 has a higher yield than many of the other capacity units available for your mono laser printer.This original Lexmark B252X00 black toner cartridge has an estimated page yield of 10,000 prints. Once compatible machines (like the Lexmark B2546dn) believe the B252X00 toner cartridge is empty, the unit will cease to function, allowing you to take advantage of the free recycling scheme mentioned previously.