Q: Unable to scan to HP 8600 after Mavericks update

I am unable to scan to my HP 8600 Officejet Pro since updating to Mavericks 10.9.4. It keeps telling me that it can't open a session. I have reset the printing system and downloaded and installed the printer drivers but still get the same response. I have tried using the USB connection and wireless.

Before updating the Mavericks software, the Mac and the printer communicated with no problems. The printer works fine but cannot get the scanner to respond at all. After searching the web, all I can find is that HP are responsible for correcting the glitch but can't get a response from either HP nor Apple and have now become totally frustrated with the whole thing.