Advanced Scanning
Page 53
The best resolution for a scanned image depends on
the type of image you are scanning and your final
output device. The following table shows the best
scanning resolutions for the most common
applications:
The higher a resolution you select, the larger the
resulting image file. For example, an 8.5 x 11 inch
original scanned at 300 dpi can produce a 24 MB file.
Output device
Recommended
Resolution
Inkjet printer 240 dpi
Monochrome laser printer 150 dpi
Computer screen 72 dpi
Four-color printin
press with 150 lpi 250 dpi
Four-color printin
press with 175 lpi 300 dpi
B&W printin
press with 85 lpi 150 dpi
B&W printin
press with 100 lpi 170 dpi
B&W printin
press with 133 lpi 225 dpi
Line art lo
o 600 dpi
Optical Character Reco
nition (OCR) 300 dpi
Note:
Resolution in
professional printin
is
measured in lines per
inch (lpi), rather than
dots per inch (dpi).
TWAIN.bk : advanced.fm5 Page 53 Monday, September 8, 1997 2:06 PM
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