Thank you for your cooperation. I have found a solution now. I will post it soon.
** Summary changed: - CUPS reports printer not connected + USB->Parallel adapter produces crappy device URI and CUPS "usb" backend cannot cope with it ** Changed in: cups (Ubuntu) Status: Incomplete => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/910272 Title: USB->Parallel adapter produces crappy device URI and CUPS "usb" backend cannot cope with it To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/910272/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs