October 23rd, 2011, 04:08 PM #9
You have a USB printer, not a network printer. You are trying to share that printer over the network. The printer doesn't/can't have its own IP address. It is hosted at the IP address of the Windows computer.
You will not be able to use the Epson-provided driver to print to the Windows-shared printer. Epson provides USB-only drivers for its USB-only printers. You will need to use a Gutenprint driver. Apple has included Gutenprint drivers in OS X for this very reason.
For Gutenprint updates: