I installed via the network an HP LaserJet MFP M426fdw to a local computer, running Windows 7 Pro. It successfully installed, and I downloaded and installed the newest drivers. Everything looks hunky-dory on the surface, but when I try to print a test page nothing happens. After 20 or 30 seconds, the error symbol pops up over the printer in Devices and Printers. When I troubleshoot the problem, it solves the "document in queue cannot be printed" error by deleting the document (which I can also do, but it does the exact same thing the next time I try to print), but a secondary error that troubleshoot cannot fix comes up as "HP LaserJet MFP M426fdw cannot be contacted over the network".
If I run a USB cord and extender across the room from the computer to the printer, everything works just fine. It is a network printer though, and the cord across the room defeats the purpose and causes a mild safety hazard. I've tried every trick I know, I've read the other forums that are similar, and I've been directed to Microsoft's "Why Can't I Print?" page too many times to count.
I haven't tried to install the printer on any other computer, as I ran into this problem on the first one.