一，安装CUPS和P910ND
$ sudo pacman -S ghostscript foomatic-db foomatic-db-{engine,gutenprint-ppds,nonfree,nonfree-ppds,ppds} gsfonts gutenprint cups git
$ git clone https://aur.archlinux.org/p910nd.git
$ cd p910nd
$ makepkg
$ sudo pacman -U p910nd-0.97-1-x86_64.pkg.tar.xz
二，取消屏蔽usblp
$ cd /usr/lib/modprobe.d
$ sudo rm usblp.conf
$ sudo reboot
udevadm info -a -n /dev/usb/lp0
