Xerox 6030 Guida Utente

The Copy option allows you to darken or lighten the contrast of the copy 
with respect to the original document.  Press the down arrow key to 
darken the contrast.  Press the up arrow key to lighten the contrast.  The 
indicator lamp for the selected contrast setting illuminates.  The middle 
contrast setting is the factory default setting. 

You can use this feature to further adjust the effects of the Type and 
Background Suppression selections.  The feature operates with all four 
Background Suppression modes.