This is an MTI © compatible color cartridge set, designed for the following printers: Brother HL-4040CDN, HL-4040CN, HL-4070CDW, DCP-9040CN, DCP-9045CDN, MFC-9440CN, MFC-9450CDN, MFC-9840CDW. The MTI © TN110 Toner Set produces rich, vibrant colors. Crisp detail and clear image quality give you professional results that you can count on, at 40-60% of OEM prices. MTI © toner cartridges are engineered to exceed industry standards of high yield and exceptional quality, and guaranteed to perform with Brother Laser Printers. Every cartridge is factory tested and ISO approved. We offer an exclusive 30-day customer satisfaction guarantee and 1-year Manufacturer Warranty. Our dedicated customer care staff is available 9 a.m. to 7 p.m, Monday through Saturday to answer any questions and provide technical support.