Epson GT-30000 User Manual page 119

Moiré (cross-hatch) patterns
appear in the image when you
perform halftone scanning.
Make the image size slightly
smaller.
Use a transparent sheet between
the document and the
document table to defocus the
image.
Reposition the document on the
document table. Try
positioning the document at a
slight angle.
Make sure
Unsharp Mask
deselected in the Destination
window.
Select
24-bit Color
De-screening
, or select
Type
De-screening
Type window.
You can't print scanned images,
or the printed image looks
garbled.
Make sure your printer is
securely connected to your
computer and that you're using
the correct cable.
Make sure the correct printer is
selected in your printer
software.
is
as your
Image
for
On
in the Image
OCR scanning produces poor
character recognition.
Make sure your document is
properly aligned on the flatbed.
Adjust the
Threshold
the Image Controls window.
Increase the resolution to 720
dpi.
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.
A line of dots is always missing
from the image.
When a line of dots is missing
from the scanned image on your
screen, the scanner sensor has
malfunctioned. Contact your
dealer.
When a line of dots is missing
from your printouts, your print
head has malfunctioned. See
your printer manual.
setting in
Solving Problems
113