AEBSn USB Printer Port Share X-Platform for EPSON RX680

Here on the Apple Discussion are any of you aware of any reason why this model (Stylus Photo RX680) will not work on BOTH a Mac mini with OS X 10.5 AND a Dell PC with Windows XP Home via an AirPort Extreme Base Station N using the USB Port as a print server? I realize the AEBSn is not EPSON's product and I will be asking them the same question, but I would like any perspective here as well if there is anything pertaining to drivers or the printer equipment itself. [The printer (An All-In-One) dates back to being purchased at the same time as other Apple equipment, but the head honcho insists on using the Dell as her primary computer while staff (me) uses the Mac and she has a user partition on it as well.] BTW - if we got the printer portion working does that mean we might not get the scanner to work too in this set-up? (Right now it is only by direct connections to either computer). Thank You.