DR300 Brother Drum Unit is manufactured by Brother and has a page life of approx 20,000 pages based on 1 page per job. The actual number of pages that the drum unit will print may be significantly less that this estimate. Because we have no control, over the many factors that determine the actual drum life, we cannot guarantee a minimum number of pages that will be printed by the drum. Your machine should be used only in a clean, dust free environment with adequate ventilation and for best performance, use only genuine Brother toners and drums.
