|
Manual has this to say:
"A page that is hard to read, such as a scanned or color converted document, can be made more readable by adjusting the brightness and contrast."
Following options are available:
"[Saturated] Improves readability by emphasizing contrast.
[Details] Backlight compensation; brings up details in a dark area.
[Brighter] Increases the brightness.
[Darker] Decreases the brightness.
[Custom] Custom setting mode"
I guess this is mostly for badly scanned or color documents. It's also per-document, not global.
|