You can give the below a try, if it's not what you're looking for I suggest calling into the support department for assistance at 1-800-821-2797.
For a single PDF page output as a default:
To create a single page PDF as a one off situation and not change the defaults:
Got an Altalink C8055 that combines two sided scans into one page, not two as it should be.
So, lets say you scan 5 sheets of paper you would expect a PDF that shows 10 pages.
Instead you get 5 pages but each page shows the combined front and backside of a sheet.
I compared settings to other machines that do not show that issue but found no inconsistencies.
The machine is on an older software level 101.002.028.32100 but I'd refrain of upgrading as it's a machine in a remote location with not IT support.