Looks like you'll have to try re-installing the software then. Have you recently upgraded from Windows 8 to Windows 8.1 as that might have caused an issue. Either way go to Add or Remove programs in control panel and uninstall everything to do with the printer and then go to
http://h10025.www1.hp.com/ewfrf/wc/s...304877&sw_lang= and download and install the software