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Depending on the image you want to scan, you may not get the expected
scanned image. In this case, scan the image in the Manual mode.
Resolution
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. While you can make some corrections in your scanning software, you’ll need
to do major photo retouching in a program such as PhotoDeluxe to correct or mask
problems such as a coffee stain on the original image.
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.
As a rule of thumb 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. For 1440 dpi ink jet printers, such as the EPSON Stylus
Color
or Photo series, use a scanning resolution of approximately 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 a resolution you select, the larger the resulting image file will be. For
example, an 8.5 ×
11-inch original scanned at 300 dpi can produce a 24MB file.
The same original scanned at 72 dpi creates only a 1.3MB file. To keep your file
size manageable, select the lowest possible resolution that gives acceptable quality.
■ If you need to scan at a higher resolution, you can reduce the size of the image file
by scanning only part of the image. For information about selecting part of an
image, see “Previewing Images” in your electronic Reference Guide.
■ If you will be enlarging a file in your image editing software, scan at a higher
resolution to maintain the image quality.
■ If your final file is for on-screen viewing (for example, on a web page or in an
e-mail message), select 72 dpi for your resolution.
basics.book Page 39 Monday, October 23, 2000 11:35 AM