This is a Compatible Brother DR350 (DR-350) Laser Drum unit guaranteed to perform with Brother Laser Printers. It replaces the original Brother DR350 Laser Drum unit. The compatible replacement DR350 Laser Drum 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 DR350 and offer high-quality printing results. Replacing the critical internal parts, including OPC drums, wiper blades, and other internal parts, and print-testing each drum, they are an economical alternative to expensive OEM DR350 Brother Laser Drum units and supplies, and offer big savings over brand-name DR350 Laser Drum unit and supplies. The use of compatible replacement Laser Drum Units and supplies does not void Printer Warranty. Our Compatible DR350 Laser Drum is a replacement for Brother DR350 / DR-350 Drum Unit. The TN350 is the replacement laser toner cartridge that fits into the DR350 drum housing. You can replace the Brother TN350 without replacing the entire DR350 drum housing.. . For use in the following printers: MFC MultiFunction Printers MFC-7420, MFC MultiFunction Printers MFC-7820N, HL Printers HL-2070N, DCP Series DCP-7020, Intellifax 2820, MFC MultiFunction Printers MFC-7220, Intellifax 2910, Intellifax 2920, HL Printers HL-2030, MFC MultiFunction Printers MFC-7225N, HL Printers HL-2040.