When you have some random piece of paper in your hand you need to send somewhere, NOW, and need to be sure there’s hardcopy evidence of it printed straight away at the other end? Fax is the one – drop it in the tray, dial the number, hit start. Even if the quality isn’t great, it’s perfectly fine for most text print or handwritten material. EG express order forms.

Rather than arsing about looking for a PC with a scanner on it, firing it up, figuring out how the scanner works, logging in to your email, sending the file, then hoping it gets through at a decent speed, isn’t rejected by a firewall, and that the person you’re sending it to has their email on and has access to a usable printer.