I had what may be a similar problem. I use a Mac, and recently upgraded from OS X 10.6.8 to 10.8.4. The printer partially responded -- I was able to do a status check -- but nothing else, no head cleaning, no test prints, no prints at all. So I deleted the printer and reinstalled it (I don't know how to do this in Windows -- sorry). This helped -- printer then responded normally to all instructions. Not sure if that was the problem or if there was some other glitch that got fixed by itself, but everything seems back to normal now.