Xerox DocuMate 3640 User Manual - page 85

Scanning from TWAIN

DocuMate 3640

User’s Guide

72

Adjusting the Brightness and Contrast

Increasing the 

Brightness

 level makes the image lighter and decreasing the brightness level makes the 

image darker.

Increasing the 

Contrast

 emphasizes the difference between the lighter and darker regions in an image. 

Decreasing the contrast de-emphasizes the difference between the lighter and darker regions. Contrast 

is used in conjunction with Brightness. Contrast settings are only available for Color and Grayscale 

configurations.

To adjust the brightness and contrast:

•

Move  the 

Brightness

 slider to the left to make the item darker or to the right to make the item 

lighter.

•

Move the 

Contrast

 slider to the left to decrease the contrast or to the right to increase the contrast.

•

You can also type a number directly into the brightness or contrast setting boxes, or click the up 

and down arrows next to the box to increase or decrease the setting.

•

Click 

Reset

 to return the settings to their original numbers.