Epson ActionScanner II - Manual (Page 21)

7. Select the Scan button. The scanner scans using the
information in the calibration profile to produce the best
possible image for your printer.
Selecting the Correct Resolution
To select the best resolution for scanning an image, you must
consider three factors:
Type of image you are scanning
Final output device type
Acceptable file size.
You’ll select different resolutions for scanning line drawings
and halftones than for scanning photographs.
The final output device is the device on which you plan to
ultimately print the image. This may be a printer connected to
your computer or a commercial printing press.
In addition, the file size of the scanned image may determine
the resolution you select. The file size may be very large for
high resolution scans, taking up valuable disk space and
causing longer processing or printing time. Generally, the
higher the resolution you choose, the larger the file.
Note that a very high resolution scan may not produce a
better-quality printed image because your output device may
not recognize the high resolution information stored in the file.
In other words, there is no point in scanning at a higher
resolution then your output device is capable of. To keep file
sizes manageable, select the lowest resolution that provides
acceptable quality on your output device.
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