Try system restore to yesterday and see if it comes back.
I have an Epson Stylus Photo R300 (M) printer and a 64-bit Windows 7 computer. I decided to try and rename my printer today so that I could easily distinguish it from others on the network (personal home network) and now all of a sudden, it has disappeared. I can not find any trace of it anywhere. No drivers to remove, no default settings, nothing.
After hunting and searching for a few hours, I was finally able to find it by going to Control Panel> Devices and Printers (go figure)> and at the bottom, I can see the printer that I renamed. I tried to rename it back to the original name and got nowhere. I have tried to uninstall (Remove Device) and start from scratch, and still have nothing. About 20 restarts later, I have decided to come here in hopes that someone can help me.
The Epson web site is no help either, because apparently Windows 7 already has the drivers installed so that it can auto play the printer. I just want someone to help me find that big "Start Over" button that fixes so many PC issues out there.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic