Epson Expression 1680 User Manual page 54

The image doesn't scan, or you can
only scan a few dots.
■
Make sure the document is face
down on the document table.
■
If you're using an automatic
document feeder, make sure the
original document is inserted
face up.
You're using a transparency unit,
and the colors of your negative film
preview look strange.
■
Make sure you've selected the
correct Document Type in
EPSON Scan.
48
Solving Problems
■
The scanner perceives the film
guide's frame as white, which alters
the exposure of the scanning area
and makes the preview appear
darker. To see the correct colors,
do a zoom preview on an area
toward the center of an image.
■
If you see light vertical lines on the
scanned image, the TPU
calibration area (the small
rectangle of glass above the
document table) may contain dirt
or dust. Clean the calibration area
with a lint-free cloth.