Microtek ScanMaker 6100 Pro User Manual page 120

the scanned image. Even if your scanning software or image-editing
package has tools to improve image quality, they work only up to a
certain point. Images that are out of focus, dirty, or poorly exposed
may never look great - no matter how much time and effort you
spend retouching them.
ScanWizard 5 scans halftoned images such as magazine photos
using special settings. If you scan magazine or newspaper photos
without descreening the image, you will obtain something called a
moiré, which is an undesirable pattern in color printing.
Keep your scanner clean
Make sure your scanner glass is clean before you scan images. This
way, you don't pick up flecks of dust along with the image when
you scan. To clean the scanner glass, use alcohol on a lint-free cloth
and clean the glass carefully.
Select the right image type and settings
Choose the right image and set the correct resolution and scaling
before you scan.
If you have single-color art (even if it isn't black and white),
scan it as line art.
For black and white photos, scan these as grayscale (not color)
to generate smaller files.
If you plan to print a color scan in black and white, scan it in
grayscale.
Finally, when scanning (whether in color or another mode), choose
the correct resolution.
Use your image correction tools
When scanning color images to obtain more accurate colors, use