Dell E515dw User Manual page 260

Advanced Settings
Configure advanced settings by clicking the Advanced Settings button
in the Scan Settings dialog box.
• Brightness
Set the Brightness level by dragging the slider to the right or left to
lighten or darken the image. If the scanned image is too light, set a
lower brightness level and scan the document again. If the image is
too dark, set a higher brightness level and scan the document again.
• Contrast
Increase or decrease the Contrast level by moving the slider to the
right or left. An increase emphasizes dark and light areas of the
image, while a decrease reveals more details in gray areas. You can
also enter a value in the box to set the contrast.
• Remove Background Color
Remove the base color of documents to make the scanned data more
recognizable. When you use this function, select from three settings:
high, medium, and low.
(Available only for the Auto, True Gray and 24bit Color options)
Restore Defaults
Select this option to restore all settings to their factory setting values.
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