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 simplex document will scan front and back pages, but will drop the backside. Duplex 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'