Scanning Tips; Selecting Resolution - Epson Expression 1640XL Graphic Arts User Manual

To zoom to the selected area, click the
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marquees, the currently selected one appears in the Zoom preview.
To erase a marquee, click the marquee and click the
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To create multiple marquees of the same dimensions, select one marquee, then
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click the
To scan all marquees at once, click the
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Scanning Tips

Getting the best scan possible depends on several factors, including the quality of your
original and the resolution you select. The better your original is, the better your scan
will be. To get the best possible scan, keep the document table clean, and make sure
the document is flat against the glass surface. You can make many corrections in your
scanning software (EPSON Scan, or LaserSoft SilverFast if you have the Graphic Arts
Edition model of the scanner). For additional photo retouching, use an image editing
program such as Adobe Photoshop Elements.

Selecting Resolution

Resolution refers to how many dots per inch (dpi) or dots per centimeter (dpcm) your
image contains. The best resolution for a scanned image depends on the type of image
you're scanning and your final output device.
For most images except line art, use a scanning resolution that is approximately one
third of your output resolution. For example, use a scanning resolution up to 100 dpi
with a 300 dpi laser printer, and up to 200 dpi with a 600 dpi laser printer. If you're
scanning an image to view on-screen, choose a resolution of 96 dpi. For ink jet
printers such as the EPSON Stylus
300 dpi. Try a scanning resolution of 240 dpi for 720 dpi printing.
Keep the following in mind when you choose a resolution:
The higher the resolution you select, the larger the resulting image file will be. For
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example, an 8.5
The same original scanned at 72 dpi creates only a 1.3MB file. Large files take
longer to process and print, so consider the practical limitations of your computer
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Scanning Tips
Duplicate button.
®
×
11-inch original scanned at 300 dpi can produce a 24MB file.
Zoom
button.
All
Photo series, use a scanning resolution of up to
button. If you have multiple
Delete button.