Hi,
FTP is mostly used to transfer files between the host computer and a server or a website. But by default FTP will transfer your credentials unencrypted. This may be okay on home network, but you will want something more secure when operating on a larger network.
SMB is mainly used for shared access to printers, files, and ports. Additionally, this also provides an authenticated inter-process communication mechanism.
Both should work in your environment. But for the purpose of scanning to folder, I think SMB should be better.
I also did some research, people mentioned that FTP might be faster when transfering file but SMB is easier and more reliable. Most people prefer SMB.
Thanks,
Eleven
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