Xerox phaser 3116 driver

Have you googled it, or tried the manufacturer's website?

Windows 7 drivers are not available for the Phaser 3116. Driver updates for Windows operating systems for the Phaser 3116 ended with Windows XP. Although it is not a supported configuration, you could try using the GDI driver available at Xerox.com - it is posted under Windows XP and Windows Vista.

GDI driver didn't work in Win7 64bits
I installed Phaser 3117 driver and, so far, it seems to work fine.