Epson 1640SU - Perfection Photo Scanner, Reference Manual, Page: 71 / 192

Understanding EPSON TWAIN Features
3-17
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To print your scanned document when Resolution is set to Black
& White , select the same resolution setting from the list as you
select in the printer driver. To print your scanned document when
Resolution is set to
Gray/Color , select a resolution between 150
and 300 dpi. If you select a higher resolution, the Gray/Color
setting requires longer to print, but does not improve the output
quality.
❏
The Resolution setting is closely related to the Image Size and Scale
settings. If you change them arbitrarily, the resulting image may
not be what you expected.
❏
The range of resolution values depends on your scanner.
To save the settings you made, type a new name in the Destination
Name box, and then click
Save .
To delete a Destination setting, select the target setting name to
be deleted in the Destination Name menu, then click
Delete .
To apply the settings you made, click OK . To cancel the settings,
click Cancel .
To access the online help, click Help .
Unsharp Mask
You can select or deselect the Unsharp Mask setting. Selecting this
check box improves image sharpness.
Note:
If Pixel Depth is set to Black & White or Color Smoothing is set to On
in the Image Type dialog box, this check box appears dimmed and cannot
be selected.