Laserjet Monocromo Brother BRTN3512
Toner Compa HL-6250,6300,6400,6600,6800,6900-12K#TN-3512
TONER COMPATIBLE FOR 
HL-L6250DN / HL-L6300DW / HL-L6400DW / HL-L6400DWTT / DCP-L6600DW / MFC-L6800DW / MFC-L6800DWT / MFC-L6900DW  / BROTHER L6950DW L6970DW