4 Drum Units & 4 Toner Cartridge Compatible. Package Includes 8 Pieces: 4 Packs of Compatible Laser Toners Replace TN 221 / TN 225 (Complete Set of Black, Cyan, Yellow, & Magenta). And Complete Set of 4 Drums. Any Drum Can Be Used to Replace Black or Cyan or Magenta or Yellow Drums Providing Great Flexibility to Users. For Brother HL-3140CW HL-3150CDW HL-3170CDW HL-9130CW & MFC-9330CDW MFC-9340CDW & DCP-9020 DCP-9140 Page Yield: 2, 500 pages Black Toner and 2, 200 Pages per Coloured Toner, 15,000 Pages per Drum @ 5% standard coverage rate. Important: Reset The Drums in Your Machine after installing. On your printer screen press ‘Maintenance’ Icon then ‘All Settings’. From the list select ‘Printer’. Go down in the menu and select ‘Machine Life’ then ‘Parts Life’. Long press ‘#’ key on the printer keyboard. Choose the drum to reset (BK. ) Machine will display ‘Accepted’.
