You can scan originals more clearly by manually adjusting the density according to the contents of the original. For example, increasing the density enables you to easily read faint characters written in pencil.
Press to decrease the density. Press to increase the density.
To adjust the density of the background
Pressing <Adjust> enables you to adjust the density of the background before sending/saving. You can clearly send/save originals with a colored background or thin originals such as newspapers whose characters and images on the back side are transparently visible. Pressing <Auto> enables you to automatically adjust the density.
Pressing <Adjust> and then <Adjust Each Color> enables you to adjust the density for each color.