The Lexmark X463A21G Black Toner Cartridge yields approximately 3,500 pages. Lexmark delivers high-powered solutions, services and supplies that meet or exceed the needs of customers ranging from the small office to the large corporate enterprise. Years of printing industry leadership, coupled with a close relationship with its customers, allow Lexmark to develop high-quality, easy-to-use business products and services. Lexmark toner cartridges are specifically designed to assure optimal print quality, with crisp, dark output from first print to last.