How to reset a drum – Brother HL -5140, HL -5240, HL -5340, HL -5350 - YouTube
Brother HL-5250DN Laser Printer close look - YouTube
Brother HL-5250 DN Toner Cartridges and Toner Refills
Amazon.com: (1 Drum + 1 Toner) GREENCYCLE High Yield Black Toner Cartridges & Drum Drum Unit Set Compatible for Brother TN550 TN580 DR520 use with DCP-8060 DCP-8065DN HL-5240 HL-5250 MFC-8870WN : Office