I solved this bug by enabling Pre-Released Updates. Then updated Kernel to 3.0.0-13 and this solved my detection problem on my Epson Stylus Photo R340 printer.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/872711 Title: Kernel does not report some USB printers correctly, making them not being detected by CUPS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/872711/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs