Looks like a compatibility problem of the adapter cable. can you run the following commands in thge given order and post all their output:
lsusb lsusb -vvv sudo /usr/lib/cups/backend/usb sudo lsmod | grep usb sudo modprobe usblp sudo usb_printerid /dev/usb/lp0 sudo usb_printerid /dev/usb/lp1 sudo usb_printerid /dev/usb/lp2 sudo rmmod usblp Note also that HPLIP recognizes only directly connected or network printers. In addition, the PPA printers, like the 710 are not supported by HPLIP and therefore not detected by HPLIP. -- 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 [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
