The Brother BU300CL transfer belt should only reqire to be renewed after 50,000 pages. It is suitable for use in all the Brother laser printers listed below. Compatible With * Brother DCP-9055cdn Laser Printer * Brother DCP-9055cdw Laser Printer * Brother DCP-9270cdn Laser Printer * Brother HL-4140CN Laser Printer * Brother HL-4150CDN Laser Printer * Brother HL-4570CDW Laser Printer * Brother HL-4570CDWT Laser Printer * Brother MFC-9460cdn Laser Printer * Brother MFC-9465cdn Laser Printer * Brother MFC-9970 Laser Printer * Brother MFC-9970cdw Laser Printer