Canon imageFORMULA DR-C225 II, User Manual, Page: 70 / 115

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Set the scanning side setting to [Skip blank page] to delete the images of
the blank pages in the document.
If [Skip blank page] is selected, you can adjust the level for judging
whether pages are blank.
When you do not want to scan colored lines
and text
Specify the color (red, blue, or green) to be ignored (dropped out) in the
color drop-out settings on the [Image processing] tab, and that color will
not be scanned.