HP ENVY 7640 not recognizing computer, all of a sudden

[DiningOut]

I printed last night, no problem. Today--nothing will print. I do everything to print from the computer screen...yet when I go in to see what's printing, nothing shows up. I have had this printer for more than 4 months with no problems. Thanks!

 

[popatim]

Have you restarted the printer and the pc?