Maintenance Visioneer
®
7900
User Guide
25
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 Visioneer
®
7900 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.
Problem: My computer keeps giving me out of hard drive space error messages.
The minimum requirement of free hard drive space is for the installation of the scanner driver and basic,
low resolution, scanning. High resolution scans result in files that can be over 1 gigabyte in size. Free up
some space on your hard drive for the software to be able to save the scanned images.
Problem: I am getting an error message that OCR fails every time I try to scan using the OCR features
from OneTouch. What is the problem?
Anti-SpyWare software that is set to always run may interfere with the driver functionality. It is
recommended that you temporarily disable or suspend the automatic protection feature during scanning.
After scanning is complete and your file has been saved, turn the auto-protect feature back on. You do not
need to close the Anti-SpyWare software.
Problem: With AutoCrop to Original selected, sometimes I get blank pages, or pages with lines.
The pages were probably scanned in crooked, or skewed. To use AutoCrop to Original, the pages must be
scanned in straight.
Problem: If the USB cable is disconnected during a scan, the scanner does not reconnect when the USB
cable is plugged back in.
Unplug the power cable from the scanner, and then plug it back in.
If the scanner does not reconnect:
1. Unplug the power cable from the scanner.
2. Restart your computer.
3. After the restart is complete, plug the power cable back in.
UNINSTALLING YOUR SCANNER
Use the options in the Windows Control Panel to remove the scanner driver and modules, and any other
software provided with the scanner.
Please leave the scanner’s USB cable plugged into the computer while uninstalling the scanner driver.
Unplug the USB cable when directed to do so in the instructions below.
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