WideTEK WT42 / WT48
8.6 Backlight
Picture 57: Backlight slider
The backlight slider turns the backlight feature off and on and controls its brightness.
Valid values range from 0 to 100.
Use FK1 and FK2 to move the slider.
Using backlight illumination is recommended while scanning translucent documents. The
back light lamp increases the contrast between background and information in the
document.
Press FK3 once to return to the status screen.
Press FK4 or FK5 to select another item from the menu lists.
Keyboard Operation Manual
Page 57