Note that the URI has changed with my new patch. It must be something like usb://Unknown/Printer
or usb://Unknown/Printer?serial=... Printer setup tools should show the model simply as "Unknown". At least system-config-printer does so. http://localhost:631/ (CUPS web interface) should do so, too. Please have the printer connected and turned on, preferably connect the parallel port at the printer before connecting the USB port at the computer. Have the printer turned on when connecting the USB. Then run the following commands in a terminal window: sudo rmmod usblp lsusb ls -l /dev/bus/usb/*/* ls -l /dev/usb/lp* sudo /usr/lib/cups/backend/usb ldd /usr/lib/cups/backend/usb | grep usb lpinfo -v sudo modprobe usblp lsmod | grep usb sudo usb_printerid /dev/usb/lp0 sudo rmmod usblp Post the output here. -- 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
