Nuance omnipage direct 2 for windows User Manual

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Operation Problems
Technical Information  47
Operation Problems
Direct works but operates slowly and frequently accesses the 
hard disk drive.
As a Windows application, Direct is able to take advantage of the 
Windows swap file when running low on memory. This may occur with a 
minimally configured system (only 4MB of RAM), if memory has become 
fragmented with use, or if other applications are running in the 
background. When low memory conditions occur, Windows will use disk 
space to simulate the RAM it does not have available. Disk access time is 
much longer than RAM access time; the computer system will run much 
slower when it has to use a swap file. 
A quick fix for memory fragmentation problems is to quit Direct and 
Windows and reboot your system. This will clear any fragmentation of 
memory that has occurred (until, of course, it happens again).
Try closing any other applications that are running in the background. 
This will usually free enough memory for Direct to operate without using 
the swap file. If you regularly work with long, complex documents, 
adding more RAM to your system would be the best solution.
For more information on optimizing your system and application 
performance under Windows, refer to the Windows User's Guide.
The scanner will begin to scan and stop. The entire system locks 
up and you have to reboot your computer.
You may have an interrupt conflict between your scanner and another 
device. If you have a bus mouse and you usually do not use the mouse and 
scanner at the same time, check the interrupt used by the scanner and 
mouse for a possible conflict. The interrupt address typically used by some 
network cards may cause the same problem.
Images appear inverted (like negatives).
TWAIN scanners not 100% compliant with the TWAIN standard must 
have correct entries in the scanmgr.ini file located in your Windows 
directory. See “TWAIN Scanners Not Listed” on page 41.
Your system hangs when you try to scan (TWAIN scanners only).
If you select Auto Intensity you must also select Grayscale as the scan mode 
within the dialog box of your TWAIN data source. Also, TWAIN scanners 
not 100% compliant with the TWAIN standard must have correct entries 
in the scanmgr.ini file located in your Windows directory. See “TWAIN 
Scanners Not Listed” on page 41.