123 HP Deskjet 2540 Driver Installation:
As soon as you upgrade your operating system from windows vista to windows 7 on your computer device which includes the full version of the software or the 123 HP Deskjet 2540 basic driver solution installed, then you can find that your 123 HP Deskjet 2540 multi functional printer is not working properly. You can notice that the printer’s multi functional physical button stops working. But you may find your printer installed correctly to your device. And still your printer will not be able to print, scan or copy.