Avision IS25 manual - Manual (Page 77)

Choose “Unknown Length” if you have a batch of long page
document with unknown length. Choose “Enter Length” to
enter the length and width of your documents or your
desired scan size on documents. This is useful when you
have a batch of documents with the same scan size or a
batch of same-sized documents.
OverScan
Overscan allows you to add a specific margin at top and
bottom or right and left (Options vary based on the type of
scanner) of the edge of the image. This is used to reduce
possible corner clipping on the skewed images and often
applied to a batch of skewed document to be scanned in the
auto document feeder. Select a value between 0 and +5
mm. Note the overscan result will not be shown in the
Display window and that the availability of the function
varies based on type of scanner.
Pre-Feed
Choice: Enable, Disable. If enable is selected, you can set
the amount of time the scanner starts pre-feeding your
paper after your documents has been loaded into the
feeder. The default is disable.
Transport Timeout
Set the amount of time the scanner will wait and then start
auto scan after the first scan job is completed. If you have
many separate documents need to be scanned at the same
scan settings, this feature is especially useful. The default is
0. The value ranges from 0 to 30 seconds.
5-33