Avision AV3200U+ (DF-0902H) - Manual (Page 99)

7-4
Question: The scanned image always comes out to be
too dark.
Answer: a) Use your application to modify the
Gamma setting to 2.2 and 1.8 for your
printer and monitor respectively.
b)
Use Brightness setting from the TWAIN
user interface to get a brighter image.
Question: The scanner works well otherwise, but for
the line art, the lines scanned seem much
thicker than those of the original.
Answer: Use the Brightness or Threshold setting to
adjust the line art image.