Xerox 8830 User Manual

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NORMAL - Saves a document at an average compression 
ratio and has average image quality. 

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BEST COMPRESSION  - Saves a document at a higher 
compression ratio but has a lower image quality 

 

The Background Suppression enables you to make adjustments for 
documents that contain poor contrast between the foreground image and 
the background. Background Suppression monitors the pre-scans 
image, to ensure the best image quality possible. In the PRODUCTIVITY 
mode, there is no prescan, therefore Background Suppression is done 
while the document is being scanned. 

Four choices are provided: 

Off 

This setting disables Background Suppression.  It produces a 

document that reproduces all the characteristics of the original document 
with minimum alteration.  Choose this selection when: 

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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. 

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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 

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