8825/8830 DDS User Guide/11Getting to know the 8825/8830 DDSThe ScannerDDS User InterfaceOption and Feature keys (continued)The Copy area allows the operator to darken or lighten the contrast of thecopy with respect to the original document. One of the LED displays willshow the degree of copy contrast selected. Press the arrow keys to changethe contrast. This feature may be used to further adjust the effects of theType and Background Suppression selections. The feature operates withall four Background Suppression modes.Reduction & EnlargementPressing the associated key allows the operator to select one of threereduction/enlargement modes. Auto automatically adjusts thereduction/enlargement to fit the size of media selected. Manual allows theoperator to select a reduction/enlargement ratio between 25% and 400%with a precision of 0.1%. Preset (factory default) permits the operator toselect a predefined reduction/ enlargement ratio. The value may becustomized, as explained later. Pressing the Enter key selects the newchoice. Pressing the Exit key rejects the new choice and retains theprevious setting, while pressing the R/E key allows a new selection to bemade.LineOffAutoManualOriginalImage QualityReduction &EnlargementPresetTypeMixedPhotoBackgroundSuppressionCopyAuto
