Each cartridge individually print tested at manufacturing stage. For Brother Printers – HL-L2300, HL-L2340, HL-L2360, HL-L2365, DCP-L2500, DCP-L2520, DCP-L2540, MFC-L2700, MFC-L2720, MFC-L2740 Compatible Or Original Compatible Form Drum Unit Life Up to 12,000 pages
