Categories GT3 Series DriverFirmware GTX422 DriverFirmware GTX600 NB DriverFirmware GTX600 SB DriverFirmware GTXpro & GTXpro Bulk DriverFirmware GTXpro DTF R2R & GTXpro Bulk DTF R2R DriverFirmware WF1-L640 Firmware GTX422All important drivers, firmwares and tools for Brother and Non-Brother products. GTX4FIRM3900000.bwf Download (BWF/14.50 MB)