Ubuntu 12.04+ , Kubuntu 12.04+ , Xubuntu 12.04+ , Mint 13+ etc – PPA Based Installation
Run in a terminal:
sudo add-apt-repository ppa:simon-cadman/niftyrepo
sudo apt-get update
sudo apt-get install cupscloudprint
sudo /usr/share/cloudprint-cups/setupcloudprint.py
Unbelievably AWESOME