Problem solved!!. Apparently Linux Kernel 3.0.0-12 was the problem. Launchpad has several users who encountered the same issue with this kernel. Updating to Kernel 3.0.0-13 solved the detection problem. So if you have a USB Epson Stylus printer that is not detected, than upgrade your Kernel to 3.0.0-13. Ubuntu 11.10 comes with Kernel 3.0.0-12 as default, if it had come with 3.0.0-13 than I wouldn't have had an issue. So check the 3.0...kernel version that Mint 11 and LMDE updates to. If 3.0.0-12 than avoid it. Go for 3.0.0-13.