Konica Minolta bizhub C450 Network Scanner Operations page 317

Importing images using TWAIN
If you click [Other Settings], the additional items below can be specified.
Item
Compression
Original Image Type
Background Adjust
C450
Description
Select the type of compression applied to the scanned data.
Select the quality of the original such as text or photo.
Adjust the background density. To adjust manually, select "Manual"
and drag slider to set the value.
5
5-15