MITSUBISHI ELECTRIC DV1248ST - Manual (Page 52)

Auto button
After you preview an image, you can press this button to open the Auto
dialogue box:
Auto Crop
Click this button and the Diamond View
driver will crop the scan area
automatically and select only the
necessary size for scanning the image.
Auto Descreen
Clicking this button will detect and apply
an appropriate descreen value for
scanning.
Auto Type
Click this button to detect the image and
choose an appropriate image type
automatically.
When you have made your selection , you can click OK to confirm or Cancel to
abort and exit.