can't print from laptop

[ailurophile]

I have a desktop and a laptop, both running Win7-64. I've been able to print to either of my printers from the laptop, but now it says Server Offline and won't send print jobs out. The printers are set to Share.
I don't have a server, and the desktop is running (not sleeping). What happened, and how do I fix it?

 

[bassfisher6522]

Some times a reboot of both computers will sometimes do the trick.

 

[nckfrtg28]

It could be that the IP address might have been changed.

 

[ailurophile]

Okay, rebooting should have been an obvious attempt at fixing the problem. It didn't work, however. I also deleted and reinstalled the printer driver, and that didn't work, either.
I don't know if the IP address changed - I don't know what it was before, so I can't tell if it's changed.