You can save images of documents scanned with iX2500/iX1600/iX1500/iX1300/iX500/iX100 to a cloud storage without using a computer. Configure the profile you want to link with ScanSnap Cloud in ScanSnap Home.
For details:
ScanSnap Help (Saving a Scanned Image in Another Cloud Service)
ScanSnap Help (Saving a Scanned Image Manually in a Cloud Service)
(Select the model name of the ScanSnap at the top of the page)