Xerox DocuMate 4790 User Manual page 185

There are various reasons why the scanned image is of poor quality. The original document may not be of good
quality, the scanner glass may be dirty, or a shading adjustment may be needed.
• If the original is crinkled, torn, dirty or smudge, try scanning from the Kofax Virtual ReScan (VRS™) software.
VRS is a powerful image enhancement application that you can use to filter this type of noise from the
document during image processing. The resulting image is of a quality equal or greater to the original.
• Try cleaning the scanner. The scanner glass is where the image is captured as the page is pulled through the
scanner. Lift up on the exit release, under the input tray, to open the scanner. There is glass in the body of the
scanner and underneath the lid. Take a soft cloth and wipe across both pieces of glass. The section
the Scanner Glass and Background Plates
of the scanner.
• If cleaning the glass does not improve the image quality, try performing a shading adjustment. The shading
adjustment recalibrates the scanner. Please see the section
instructions.
Problem: I got an "SVS001" error when installing Kofax VRS. What do I do?
The message "SVS001: The VRS installation does not install an ISIS driver for the scanner you selected. Please
install the ISIS driver packaged with your scanner." is not an error message. Please click on OK to finish the
installation.
This is a message informing you that the software does not install an ISIS driver. This is the correct behavior of
the Kofax VRS software, the ISIS driver for your scanner was installed when you chose an ISIS installation option
when installing the scanner driver.
Problem: Why does my scanner not function after performing a system restore on Windows XP or Windows
Vista?
The system restore process may have corrupted some of the driver components. It is recommended that you
reinstall your scanner driver. Please refer to
Problem: Why won't my scanner buttons work after scanning with Windows Image Acquisition (WIA)?
After performing a scan using the WIA interface you must close the application you were using before scanning
with the buttons on the scanner. This does not occur when scanning using the TWAIN or ISIS interface.
Problem: Why won't my scanner work after the computer has been sitting idle for several hours?
To resolve the problem, simply turn off the scanner power then turn it back on again.
This may occur after Windows goes into power saving mode to "hibernate" the computer into a low power state.
When you move your mouse or type on the keyboard it "wakes" the computer back up and restores full power to
the system. This power fluctuation during the computer's hibernating period may sometimes cause the scanner
to lose communication to the computer.
Problem: The USB cable was unplugged while scanning, now the scanner won't work. What should I do?
Simply turn off the scanner power then turn it back on again. This will reset the scanner and make it available for
scanning.
Problem: When using "Create single image files" not all of the pages scanned are sent to the destination I
chose. Where are they?
Scanner Options, Maintenance and Troubleshooting
on page 172 contains thorough instructions for cleaning this part
Shading Adjustment
Uninstalling Your Scanner
on page 166 for
on page 179 for installation instructions.
®
Xerox DocuMate
User's Guide
Cleaning
® 9-177
4790