Brother MFC-6800 User Manual

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  G 3 ,   G 4   O R   I M A C ™ / I B O O K      

Adjust the Brightness settings to obtain the best image. The Brother TWAIN 
Scanner driver offers 100 Brightness settings (-50 to 50). The default value is 0, 
representing an “average” setting.

You can set the Brightness level by dragging the slidebar to the right to lighten 
the image or to the left to darken the image. You can also type a value in the box 
to set the setting. Click OK.

If the scanned image is too light, set a lower Brightness value and scan the 
document again.

If the image is too dark, set a 
higher Brightness value and 
scan the document again. 

The Contrast setting is adjustable only when you have selected one of the gray 
scale settings, but it is not available when Black & White is selected as the Gray 
Scale.

Increasing the Contrast level (by dragging the slidebar to the right) emphasizes 
dark and light areas of the image, while decreasing the Contrast level (by 
dragging the slidebar to the left) reveals more detail in gray areas. Instead of 
using the slidebar, you can type a value in the box to set the Contrast. Click OK.