My HP Officejet printer all of a sudden won't scan or print. It said offline and I could not get it to work. So I uninstalled the printer on my Lenova Yoga computer and reinstalled it. Now when I try to print the test page it won't print the test page. And, I try to scan and it says scanner is not connected. When I go to printers and scanners on my computer - under the HP Officejet 4630, it says default, error. Help?