This genuine BU-220CL transfer belt unit is an office essential when it comes to prolonging the lifespan of your printer and ensuring it continues to deliver high quality documents, time after time.The BU-220CL ensures toner is transferred properly within your laser printer so that text and images are correctly and crisply reproduced on your printed document. Quick and easy to install, it places a vital role in enabling your printer to provide you with the professional results you expect from Brother.Offering a duty cycle of 50000 pages, this replacement transfer belt unit is long-lasting and reliable, and makes day-to-day printer maintenance that much easier.