Note: These tend to change often. Check the root directory of the CD-ROM or the web site ScanHelp.com for the most up to date version of tech tips. These are presented for learning purposes only.

Solution:
This is usually due to a hardware conflict. Most of the time, your SCSI card is conflicting with another card in your system. You should try to change the address on the SCSI card and see if that resolves the conflict. Also, contact your scanner's manufacturer to see if they have any new information.
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Solution:
Most likely, your scanner is not properly terminated. Art-Scan is resporting that it can find the SCSI card, but it can't communicate with the scanner through it. Make sure that the scanner is turned on, plugged in, and ready. Check termination and SCSI ID conflicts.
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Solution:
Art-Scan stores your last settings in its resource file. If your computer locks up while you are using the scanner, it's possible for these settings to get messed up. Try holding the 'Alt' key when you 'Acquire' Art-Scan. This will resset the defaults in our software and you will be able to use it. If you still cannot get into your software, simply reload Art-Scan software from the orginal disk. Make sure to delete the Art-Scan.PFS file, as well.
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Solution:
If you scan line art at 600 dpi and print it at 600 dpi you will get a log of jaggies. In the Line Art mode the sacnner does not see any gray areas. When you perform a line art scan, the scanner cannot tell when white stops and black starts. The output will have gary pixels on every edge. The scanner uses this to make it white or black. This means that on a diagonal line some of the dots are going to become white and some will become black, giving you a stair step jagged line. On a 600 dpi scanner we suggest that you scan line art at 2400 dpi and use our EPS mode option. This will take care of any jaggies that you may have.
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Solution:
To correct this you need to modify the midpoint of the scan. This is located under Spectrum Levels and allows you to input a number from 0-100%. The higher numbers will make the artwork thinner when you raise the midpoint. The lower numbers will make it thicker. You can use this if the artwork appears too thin or too thick.
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Solution:
The scanner uses fluorescent bulbs and for very small items not all the light reflects off at a 45° angle. You may end up getting some black coming into what is white and vice-versa.
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Solution:
This happens when you do a reflective scan with the transparency option installed. The light is actually shinning through your paper and is not reflecting off the back of it. To correct this you should either remove the transparency option when you do a reflective scan, or put a white peice of paper behind your artowork.
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Solution:
This can be caused by several different things. If you have had your scanner for a while and know for a fact the lines were not there when you first purchased the scanner, you may consider replacing the bulb. As you're replacing the bulb, look at the calibration strip underneath the scanner to make sure that it is clean and not gray. This can affect your scan. Or, you may have a bad CCD. If the streak s in the same place every time you can, you probably have some type of electronic failure. Call your scanner manufacturer and ask for a replacement.
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Solution:

1. Click on the Spectrum Levels and modify the midpoint.
2. You may also click on calibration and locate or create calibration files for every scan. In the calibration selection you can also put in a gamma setting. The standard gamma for printed output is 2.2. The standard monitor gamma is 1.8.
3. You also want to set your monitor for a gamma of 2.2 with the Gamma Program that comes with Photoshop. You may need to reset your gamma when you work with pantone colors. Pantones are solids and work at a different gamma level than most output. Many people save two different gamma settings. One for viewing photographs and the other for viewing pantone colors.
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Solution:
These lines have resulted because the sketches were done in pencil and were very light. This makes it very hard for the program to pick up what is white and what is black. Lower the threshold number using the scroll bar to make these lines daker and the lines you're getting will disappear.
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Solution:
This problem occures because Art-Scan pulls a lot of hardware detail out during a line art scan. At times the hardware is not accurate at high resolutions. To correct this, simply turn on the Descreen/Dewave feature.
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Solution:
To switch between your scanners within Adobe Photoshop is simply hold down the shift button before you click to import Art-Scan Pro 5. Using Viewingbooth simply hold down the shift button after opening viewingbooth before Art-Scan opens then it will prompt for the new driver to be used.
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