These printers use the LC20EBK cartridge:
Brother MFC J-775 DW
Brother MFC J-775 DW L
Brother MFC J-775 DW XL
Brother MFC J-785 DW
Brother MFC J-985 DW
Brother MFC J-985 DW USA SHIPMENT
Brother MFC J-985 DW XL
Brother MFC J-5920 DW