Brother GTX pro Instruction Manual page 56

(12) Click the [Browse], select the "64bit_OS" folder in the installer according to the PC's OS (64 bit version).
After the file path appears, click [OK].
(13) Make sure that a list of printer drivers is shown for the selected folder.
After that, click [Next].
(14) After the window shown below appears, select the [Replace the current driver], and click [Next].
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Installation and preparation