This is a compatible Sharp MX-B42NT1 black laser toner cartridge designed for use with your Sharp MX-B402 laser printer. It offers a standard yield of up to 20,000 pages, providing an economical alternative to the original Sharp MX-B42NT1 toner cartridge. Manufactured with 100% new components, this cartridge ensures reliable performance and high-quality printing results. The use of compatible cartridges does not void your printer's warranty. Backed by our 100% Quality Satisfaction Guarantee.