Scanner Options, Maintenance and Troubleshooting Xerox
®
DocuMate
®
4799
User Guide 6-27
• 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 “Cleaning the Scanner Glass and
Background Plates” on page 6-8 contains thorough instructions for cleaning this part 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
“Shading Adjustment” on page 6-23 for 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?
The system restore process may have corrupted some of the driver components. It is
recommended that you reinstall your scanner driver. Please refer to “Uninstalling Your Scanner” on
page 6-29 for installation instructions.
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 installation will not complete successfully. If installation finishes, the scanner’s
OneTouch options do not seem to work properly.
A likely cause is that some driver programs are already installed on your computer for another
scanner. They may be interfering with the installation and OneTouch options, and you need to
remove those other drivers and re-install your Xerox
®
scanner. You can remove these programs
from the Windows Control Panel. Please refer to the user manual provided with your other scanner
hardware for instructions about removing the driver and software for that unit.
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