Xerox X2 用户手册

 

The Background Suppression option enables you to make adjustments 
for documents that contain poor contrast between the foreground image 
and the background.  

Four  Background Suppression choices are provided: 

Off 

This setting disables Background Suppression. All the 

characteristics of the original document with minimum alteration are 
reproduced on the copy.  Choose this selection when: 

• 

The lead edge of the document is very different from the rest of 
the document (e.g., the lead edge contains a black border).   

• 

Maps with grayscale or color content may copy best in this 
mode. 

• 

To retain more light color information such as light gray or yellow 

  (Light) 

This setting works best for documents on translucent or 

transparent media, such as vellum (tracing paper) or film, or with medium 
levels of colored background on opaque media or for documents.  Such 
documents have a higher contrast between the foreground and 
background than dark documents, but less contrast than normal 
documents. 

  (Dark) 

Use this setting for documents with a dark background 

or with medium contrast between the foreground and background.  In 
this mode, the background is not suppressed, but the foreground image 
is improved to increase the contrast. 

Auto 

(factory default) - The Scanner automatically adjusts the image 

quality parameters to obtain the best copy.