PrintNode is a hosted printing service that can help you quickly,
easily and securely add remote printing to your application.
You can submit print jobs with PDF documents or links to PDF files.
PrintNode also supports RAW printing.

Edit /etc/rc.d/rc.PrintNode with correct values for 
COMPUTERNAME, EMAIL, and PASSWORD

make sure chmod 755 /etc/rc.d/rc.PrintNode is performed

Add the following to rc.local for startup:

if [ -x /etc/rc.d/rc.PrintNode ]; then
        /etc/rc.d/rc.PrintNode start
fi