Epson Expression 800 User Manual - TWAIN 32 - Page 21

Changing the Resolution, Setting Up and Using Your Scanner - ink

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Basic Scanning For ink jet printers, such as an EPSON Stylus series printer set to 1440 dpi printing mode, use a scanning resolution of approximately 300 dpi (select approximately 240 dpi for 720 dpi printing mode). For a list of recommended resolutions for specific image types, see Setting Up and Using Your Scanner. Changing the Resolution To change the resolution to a specific setting, move the resolution slider to the left to decrease resolution or right to increase resolution. You can also enter a resolution in the field and switch between dpi (dots per inch) and dpcm (dots per centimeter) measurement units. click to switch between dpi and dpcm If you select an appropriate resolution for your image, and then enlarge it by scaling it or selecting a larger output size, SilverFast Lite automatically increases the resolution proportionally so you don't need to adjust the resolution to retain your image quality. For example, if you're scanning a 2 × 2-inch photograph at 300 dpi and then enlarge the output size to 4 × 4-inch (a 200% enlargement), SilverFast Lite automatically scans the image at 600 dpi, even though the resolution slider is still set to 300 dpi. If you adjust the resolution to a high setting, keep the following in mind:  You're scanning at a resolution that gives great results for photos, and  You're creating a very large file size using your current settings Page 21

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Basic Scanning
Page 21
For ink jet printers, such as an EPSON Stylus series printer set to
1440 dpi printing mode, use a scanning resolution of approximately
300 dpi (select approximately 240 dpi for 720 dpi printing mode).
For a list of recommended resolutions for specific image types, see
Setting Up and Using Your Scanner
.
Changing the Resolution
To change the resolution to a specific setting, move the resolution slider
to the left to decrease resolution or right to increase resolution. You can
also enter a resolution in the field and switch between dpi (dots per inch)
and dpcm (dots per centimeter) measurement units.
If you select an appropriate resolution for your image, and then enlarge it
by scaling it or selecting a larger output size, SilverFast Lite automatically
increases the resolution proportionally so you don’t need to adjust the
resolution to retain your image quality. For example, if you’re scanning a
2
×
2-inch photograph at 300 dpi and then enlarge the output size to
4
×
4-inch (a 200% enlargement), SilverFast Lite automatically scans the
image at 600 dpi, even though the resolution slider is still set to 300 dpi.
If you adjust the resolution to a high setting, keep the following in mind:
You’re scanning at a resolution that gives great results for photos, and
You’re creating a very large file size using your current settings
click to switch between
dpi and dpcm