Windows 8 and Bonjour issues

I have an Epson NX415 printer scanner connected to an iMac running OSX 10.7.5 through USB. The printer has been shared and I can print from several devices including a Macbook Pro, an iPad, and older Macbook. My wife's previous computer, running Windows 7, was also able to print. She now has a new laptop running Windows 8. I have installed the latest version of Bonjour on this machine. When I try to add the printer through Bonjour, I get the message "You do not have sufficient access to your computer to connect to the selected printer." I have tried everything I can find on the internet and nothing works. What am I missing?