Replace your empty Lexmark X736de toner cartridges and start printing again. Our compatible Brother toner cartridges are economical and are designed following detailed product development protocols to ensure optimum print quality and proper page-yield. Our comprehensive 1-Year warranty and 100% customer satisfaction guarantee provide our customer complete peace of mind. The warranty encompasses all aspects of the cartridge including page yield and print quality. Buy with confidence knowing that we stand behind our products.