Press the [Copy] key.
Press the [] key.
Press the [] or [] key to display [Color/Quality], and then press the [OK] key.
Press the [] or [] key to display [Copy Quality], and then press the [OK] key.
Press the [] or [] key to display [Contrast], and then press the [OK] key.
Adjust the image quality by pressing [Low] or [High].
Press the [OK] key.