Epson Expression 1680 - Manual (Page 46)

2-26 Understanding EPSON TWAIN Pro Features
2
Using the Preview Window
Before you scan an image, you can use the Preview window to
see the effects of most EPSON TWAIN Pro and EPSON TWAIN
Pro Network settings, and to make additional image adjustments.
You can also use marquees (frames) to scan only selected portions
of an image. In addition, the Preview window gives you access to
the Densitometer, which you can use to sample a range of pixels
in the previewed image.
Note:
You cannot preview an image that exceeds available memory or disk
space.
Note for Macintosh users:
The screens shown in this section are for Windows, and may differ
slightly from the Macintosh version of EPSON TWAIN Pro or EPSON
TWAIN Pro Network. However, the method for making settings is the
same unless otherwise noted.
Note for EPSON TWAIN Pro Network users:
Although the screens shown in this guide are for EPSON TWAIN Pro,
they also apply to EPSON TWAIN Pro Network.