Setting a Resolution That Suits the Scanning Purpose
Advantages and Disadvantages of Increasing the Resolution
Resolution indicates the number of pixels (smallest area of an image) for each inch (25.4 mm), and is measured in
dpi (dots per inch). e advantage of increasing the resolution is that the details in the image become ne. e
disadvantage is that the le size becomes large.
❏ File size becomes large
(When you double the resolution, the
le
size becomes about four times larger.)
❏ Scanning, saving, and reading the image takes a long time
❏ Sending and receiving emails or faxes takes a long time
❏
e
image becomes too large to
t
the display or print on the paper
List of Recommended Resolutions to Suit Your Purpose
See the table and set the appropriate resolution for the purpose of your scanned image.
Purpose Resolution (Reference)
Displaying on a screen
Sending by email
Up to 200 dpi
Using Optical Character Recognition (OCR)
Creating a text searchable PDF
200 to 300 dpi
Printing using a printer
Sending by fax
200 to 300 dpi
Basic Scanning
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Scanning from a Computer
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Scanning Using Epson Scan 2
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