If blank pages are included in the scanned document, you can skip the blank pages when copying.
Blank pages may not be detected correctly in the following cases.
Halftone documents
Documents with extremely small printed area (e.g. blank pages with page numbers)
When N-in-1 is applied, pages are moved up if white pages are omitted.
If you make duplex copies of two-sided documents including blank pages, two sides of copies and originals may not correspond.
You can change the criteria for determining blank pages from [Device Settings] > [Admin Setup] > [Scanner Setup] > [Scanner Adjust] > [White Page Skip Level].
[White Page Skip] is set to [ON].