Xerox DocuMate 4790
User’s Guide
147
• Sensitivity—drag the slider left or right to change the DFD sensitivity level.
• Sensors—if your scanner has multiple DFD sensors, you can turn on or off each of the sensors by
selecting/deselecting the sensors. At least one sensor has to be selected. If your scanner has only
one sensor, that sensor will be selected and grayed out.
Patch codes—select this option to enable patch code detection during scanning. The scanner
recognizes patch codes as follows:
• The front side of the page. A page with a patch code on it must be placed face-up in the
document stack.
• A minimum of 50 mm of clear space from the top of the page to a patch code with horizontal
lines.
• A maximum of 70 mm between the left side of the page and a patch code with vertical lines.
• A minimum of 10 mm of clear space around the patch code.
• The patch code should be a minimum of 9 mm long for best results.
• The scanner can detect Kodak patch codes 2, 3, and T.
There are various types of patch code sheets available on the scanner’s installation disc for you to print
and use.