A year or two ago, I made a contract with some institution (can’t remember, bank, mortgage, car loan, etc…). They said that I would need to fax X document with my signature on it. I don’t have a landline. So, I said, “May I just scan and fax the document?” Ha! You’d have thought that I asked to send them naked pics of my 6 year old, or asked for one of theirs. (No, I don’'t know how they would have got naked pics of my 6 year old!)
At any rate, I got an emphatic ‘No.’ I knew this was no time to ask what the problem was, and even if it was, the person with whom I was dealing surely wouldn’t have known.
So, is there a difference? The only diff I can see is that a scan would probably in color, if not a better quality.