Brother GTX pro Instruction Manual page 96

Fast White Print Mode
This option allows high speed printing in the white ink use mode. This does not change the ink amount or concentration.
Turn it off if remarkable horizontal stripes are seen.
<TIPS>
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This setting menu will be enabled only if you have selected [Color+White Ink] in the [Select Ink:] settings.
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Selecting [White Ink Only] from [Select Ink:] forcibly switches the printer to the high speed mode.
2 Layer White
You can make highlight settings at a level of [1] to [13] when 2 Layer White is enabled.
Set the time from the start of printing the first white ink layer to the start of printing the second white ink layer.
If you set a time shorter than the time it takes to print the first layer, the additional waiting time will be set to 0 seconds.
<TIPS>

This setting menu will be enabled only if you have selected [Color+White Ink] or [White Ink Only] in the [Select Ink:] settings.
White / Color Pause
Set the time from the start of printing the previous white ink layer to the start of printing the color ink layer.
If you set a time shorter than the time it takes to print the previous white ink layer, the additional waiting time will be set to
0 seconds.
<TIPS>

This setting menu will be enabled only if you have selected [Color+White Ink] in the [Select Ink:] settings.
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Check this checkbox to activate it when you print a tiny image.
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Tiny images may become black when printed. When that occurs, print a white layer first and wait for a while (waiting time), to
print the color layers.
96
Creating print data