Genuine Brother DR-7000 drum unit For the HL-1650, HL-1670N, HL-1850, HL-1870N, HL-5030, HL-5040, HL-5050, HL-5070N, MFC-8420, HL-8820D, HL-8820DN, DCP-8020, DCP-8025D & DCP-8025DN.