If you want to go "paperless" why are you using fax (paper on the other end) and an acre eater of hard drive space with stored images?
One of the "meaningless use" criteria is electronic sharing of information with other providers. IMHO we ought to insist that all EMR products can exchange or get on board the HIE (Health Information Exchange) soon.
AC will import an XML from another system but only as an imported xml file. It won't populate the demographic data or recognize an existing patient, and add just the new data. (If you have a program that does let me know.)