Elizabeth has an HP OfficeJet Pro 8715 printer. But her menus say 8710 on the screen. Leo says the printer probably uses the same drivers because it's part fo the 8710 line. She is also being told she needs new ink cartridges and she replaced them, but now it won't print anything. Leo says to look in the setup menu to see what the error message is. It may also be security software from a third party or counterfeit cartridges. HP won't allow them. That could be the issue.
She may also need to update the drivers.
She also accidentally made her screen go sideways and she can't get it back. Leo says to type Windows Key + Displays and select horizontal. Or type Control+Alt+Up Arrow.