Line Screens; Scanner Resolutions; Line Art Scanning - Xante Assel-a-Writer-8300 Instruction Manual

Use the following table as a guide to produce 256 levels of gray.
LPI To Achieve 256 Levels of Gray
Printer
Resolution
1200 x 1200 dpi
600 x 600 dpi

Line Screens

The number of levels of gray you would like to achieve is one factor
in determining the appropriate line screen to use. You do not always
have to achieve 256 levels of gray for the best output. Some
experimentation usually is necessary to produce the best possible
output.
We found that line screens (lpi) of 85 for 600 dpi and 85 - 106 for
1200 dpi work well for most images. Try these line screen settings or
choose the number of gray levels to produce using XANTÉ's
Enhanced Screening Technology (see "Enhanced Screening" later in
this chapter).

Scanner Resolutions

Another way to insure high quality output for your images is to
determine the optimum scanning resolution.

Line Art Scanning

For line art, the optimum scanning resolution would be at the same
resolution as the output device, especially when reproduced at the
same size. For example, when printing from your printer in the 600
dpi mode, the scanner resolution should be set at 600 dpi.
8-4 Advanced Features ____________________________________
LPI
75
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