How can I fax a paper documents? I have an all-in-one (HP 7200). Do I scan the docs into my computer (as a PDF) and then "fax" that document? How would online faxing differ from email (where I would attach the scanned document). My other challenge is that my scanner tends to use about 1mb per page as a PDF (yes - even for 100 DPI). I have to call HP on that too but my basic questions above still pertain.