GTS  Premium Laser Drum Unit Compatible for Brother DR420 Generic Laser Drum Unit Compatible for Brother DR420 This Drum works with Brother TN420 / TN450 Toner Cartridges (Sold Separately) Yield: Up to 12,000 pages at 5% Coverage For use with the following units: DCP7060D, DCP7065DN, HL2220, HL2230, HL2240, HL2240D, HL2270DW, MFC7360N, MFC7460DN, and MFC7860DW