Please show the result of udevadm info -x /dev/bus/usb/001/003 | grep ID_USB_INTERFACES which should show the ID_USB_INTERFACES variable of your Kyocera printer AFAICS from comment #8 .... this should match the rule SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ENV{ID_USB_INTERFACES}=="*:0701??:*", GROUP="lp" in /usr/lib/udev/rules.d/50-udev-default.rules to let become the printer a printer with group "lp"