Visioneer One Touch 9420 User Manual
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V
ISIONEER
O
NE
T
OUCH
9420 USB S
CANNER
U
SER
’
S
G
UIDE
•
Is the scanner’s locking tab in the locked position? Slide the 
locking tab to the unlocked position. If you tried to scan with the 
scanner locked, you must restart your computer after unlocking the 
scanner.
•
Did you restart the computer after installing the software? If you 
didn’t restart the computer, it may not have loaded all of the software 
files. Try restarting your computer.
•
Did you plug the scanner into a USB hub? If you’re using a USB 
hub to connect the scanner, the hub must have its own power supply. 
If the hub does not have its own power supply, plug the scanner into 
a USB port on the computer.
•
Did you select another TWAIN source for acquiring images? If 
you use multiple TWAIN devices with your computer, you may have 
selected another source for images. Start the PaperPort software and 
select TWAIN: Visioneer 9420 from the Scanner drop-down menu.
Problem: During installation I got the error message: PaperPort 
Installation is not complete. What do I do? 
The installation procedure was not successful. You need to reinstall the 
PaperPort software.
Problem: I got the error message: PaperPort cannot allocate enough 
memory to perform internal critical operations. What do I do? 
Close any other active applications so that additional memory is 
available. If you click Continue, PaperPort moves the file to the 
PaperPort data directory and renames the file with the prefix “bad.” 
This allows you to recover the file later.
To recover the file, you can import it into PaperPort by using the Import 
command in the File menu.
