This remanufactured Brother drum unit goes under the part code of DR230CL-BK and is compatible with a variety of colour laser printers including the Brother HL-3040CN. This DR230CL-BK drum unit has been recycled using the original Brother unit wherever possible to offer you exceptional reliability and beautiful print quality.The role of the DR230CL-BK drum unit is to transfer the black toner powder from the toner cartridge onto the page, having a separate drum unit allows extended use, which stand alone cartridges which include the drum unit do not offer.Each Brother DR-230CL-BK drum unit is designed to print an estimated 15,000 pages in its lifetime, for any of the Brother printers in the compatibility tab of this page.Our remanufactured Brother DR230CL-BK black drum unit for this range of Brother printers are amongst the lowest priced on the Internet and carry a 100% satisfaction guarantee. All our prices include VAT and delivery so the price you see is the price you pay.