Black Toner Cartridge (DR-700) for Brother Printer

@@ This Genuine Brother replacement Drum Unit yields a duty cycle of approx. 40,000 pages at 5% Coverage. Some Compatible Models: Brother HL-7050 and HL-7050N @@ There are many factors that determine the actual drum life, such as temperature, humidity, type of paper, type of toner used, the number of pages per print job, etc. The estimated drum life rating is under ideal conditions. The actual number of pages that your 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 your drum. For best performance, use only genuine Brother toner. The printer should be used only in a clean, dust-free environment with adequate ventilation.