This is a compatible Sharp MX-B42NT1 / MXB42NT1 black laser toner cartridge guaranteed to perform with your Sharp MX-B402 laser printer. It replaces the original Sharp MX-B42NT1 laser toner cartridge. The compatible replacement MX-B42NT1 laser toner cartridges and supplies also known as generic are specially engineered to meet the highest standards of quality, reliability and exceptional yields that meet or exceed OEM Original Equipment Manufacturer standards for the MX-B42NT1 and offer high-quality printing results. Manufactured containing 100% new components, they are an economical alternative to expensive OEM MX-B42NT1 Sharp laser toner cartridges and supplies, and offer big savings over brand-name MX-B42NT1 laser toner cartridges and supplies. The use of compatible replacement laser toner cartridges and supplies does not void your printers warranty. We offer a Two Year 100% Quality Satisfaction Guarantee on our compatible MX-B42NT1 laser toner cartridges and supplies. For use in the following printers Sharp MX-B402, MX-B402SC, MX-C402SC.