Process based on Arch Linux.
sudo systemctl start org.cups.cupsd.service
※ Set your default paper size in /etc/papersize. This also applies to other programs, for example Scribus
I made a new group called printadmin and added myself to it with:
sudo groupadd printadmin
sudo usermod -a -G printadmin [username]
# Administrator user group [...]
sudo systemctl restart org.cups.cupsd.service