These printers use the LC20EC 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