Epson stylus color ii 用户手册

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6. Choose OK. You see the EPSON TWAIN advanced screen.
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 
betterquality 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 than 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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