Epson Expression 1680 Setup Manual page 15

EPSON TWAIN Pro and TWAIN Pro Network's De-screening
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option automatically removes unwanted moiré patterns from
scanned images for higher quality output.
Auto Area Segmentation (AAS) allows you to separate text
from photographs on a page so that grayscale images are
clearer and text recognition is more accurate.
Text Enhancement Technology (TET) enhances text
recognition accuracy for optical character recognition (OCR)
scanning.
The Expression 1680 Pro includes the Transparency Unit,
which enables negative film and slide film to be scanned.
The Transparency Unit is available as an option for the
Expression 1680.
The Automatic Document Feeder, which enables continuous
sheet scanning, is available as an option.
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Getting to Know Your Scanner