Brother GTX600NB Instruction Manual page 107

2 Layer White
You can make highlight settings at a level of [1] to [13] when 2 Layer White is enabled.
Set 0-60 seconds for 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>

Only if you have selected [Color+White Ink] or [White Ink Only] in the [Select Ink:] settings, this setting menu will be enabled.
White/Color Pause
Set 0-60 seconds for 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>

Only if you have selected [Color+White Ink] in the [Select Ink:] settings, this setting menu will be enabled.

Check this checkbox to activate it when you print a tiny image.

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.
4-30
Creating print data