An Effective printing system. This long-lasting Drum Unit works in tandem with Brother Genuine Toner Cartridges: TN830 Standard Yield, TN830XL High Yield, TN830V Value High Yield, TN830XL 2PK High Yield Twin Pack and TN835 Super High Yield. Precise performance. Expertly engineered for even flow and consistent toner distribution on every page. Long-lasting durability. Creates crisp, professional-looking black white laser prints with yields up to 15,000 pages (Approximately 15,000 pages based on 1 page per job (letter/A4 single-sided pages) The number of pages may be affected due to a variety of factors, including but not limited to media type and media size).