You could come up with a list of features that are plausible but I can't imagine a world where having my scanner send an email would be more convenient than just having a scanned document directly on a computer or phone.
Brother printers can scan to network shares without Internet access. Local networking is plenty.
> but I can't imagine a world where having my scanner send an email would be more convenient than just having a scanned document directly on a computer or phone.
I have a home office laser combo - it has a touch display on it and is bulky next to - when I need to scan in receipts I just upload it to a share folder where my accountant can pick it up.
Given the capabilites of the average HN user, it would be trivial to send to a local share that is monitored and auto uploads, effectively firewalling the printer off. I do this with my "smart TV", it only has access to my web proxy and a DNS sever I control, whitelist only.
Brother printers can scan to network shares without Internet access. Local networking is plenty.