I have the same problem,i'm using the moutainlion 10.8 the printer keeps saying it's busy.it scans ok .
IT just piss me off, I payed over 375.00 dollars for it, and HPsupport could care less if they fixes it or not.SORRY, GO BUY ANOTHER ONE. When ever i'm in a store i make it a point to go over to the print section and I tell the customers not to buy HP because there printer are all JUNK . I tell family and friends to do the same thing,tell people that are looking at HP that the product is JUNK! Well, **bleep** you people! We paid top dollar for this model,and you people are to STUPID to fixs it