Thank you for the quick response. I'm very hesitant to install third-party packages and "apt-cache policy hplip" confirms that I have the trusty package installed. I ran "dpkg -L hplip" and then had a closer look at /lib/udev/rules.d/56-hpmud.rules. Line 18 might be causing this, I suppose.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to hplip in Ubuntu. https://bugs.launchpad.net/bugs/1560388 Title: hpaio entry added automatically to /etc/sane.d/dll.conf Status in HPLIP: New Status in hplip package in Ubuntu: New Bug description: When plugging in my HP Officejet 6210 via USB an entry "hpaio" is added to /etc/sane.d/dll.conf. This breaks scanbd. To manage notifications about this bug go to: https://bugs.launchpad.net/hplip/+bug/1560388/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp