Try this answer here:
http://www.justanswer.com/computer/3kzvy-hp-photosmart-c4700-all-in-one-unit-scan.html
The HP Solutions software sounds like what you need and there is a link on this page that send you to it:
There are a number of free ocr programs on the web, I was looking the other day for another customer.
Hope this helps
Danielle