Fax a form?

I have been hoping to find a post like this one for some time. I've had a very similar problem that I have yet to find a solutuion to.
The programs mentioned above are great for sending and receiving faxes but lack a certain functionality.
As I understand the original post (and the reason it caught my attention) the search is for a program or service that will take the response from an online form and automatically fax it to a fax machine. i.e. someone fills out a form (menu perhaps) and when they hit the submit button the results page would show up at the resturants fax machine. Get it? Is there such a service?
I have several business ideas I could run with if I could only find a service that does this. I have searched it for a while now and have come up empty.
Any suggestions or solutions would be appreciated.