Rather than create multiple scan settings, which can get confusing for the scanning user, I've configured a default template which does everything that 99% of users require.
These optimal scan settings (for any Panasonic scanner) will scan EITHER/both simplex and duplex, mixed sizes of paper, and will split on the (front) side of blank pages. Blank pages are removed. This means that a front sided only document will scan front and back pages, but will drop the backside. Doubled sided documents will scan in fine as well. When it sees that the front of a page is blank, a new document will be created.
- Click 'new'
Name this scanner setting. I prefixed it with scanner model, 5055, and then default
Check - Duplex
Check - Remove Blank pages
Blank page threshold: 40 pixels
Blank Page Margin: 150,150,150,150
Document split method: select blank page
Split detect sides: 'front'
Click 'advanced settings'
9. (There is no 9th step)
10. Click the 'Common' tab
11. Automatic crop -> check 'Enable'
12. Check 'Select max paper size'
Click 'Basic' tab
Paper source: 'ADF duplex'
Page size: 'scanner's maximum'
Check 'automatic image orientation'
check 'automatic crop'