Adjusts the background density of an image.
Adjust the image quality by pressing [Lighter] or [Darker].
Press [OK].
Adjustments should be made lighter when copying dark textured originals, such as newspaper or recycled paper.
Adjustments should be made darker when darkening the area marked with markers or highlighters. However, as the colour of highlighters is difficult to copy, the copy might not come out depending on the colour of the highlighters.