Konica Minolta bizhub C451 - Manual (Page 87)

Saving documents 2
C451 2-52
Background Adjustment (Quality Adjustment)
The scanning density of the document background can be adjusted. When
documents printed on colored paper are scanned in color, the background
may become black. In that case, the density of the background can be ad-
justed.
1
In the Save Document screen, touch [Scan Settings].
2
Touch [Quality Adjustment].
3
Touch [Background Removal].