Print Files from Any Phone or Remote Computer via Dropbox is a very simple way to use Dropbox to automate remote printing.
I can be on my laptop at the airport, drop a file in my Dropbox Print folder and it will be printed for me when I get home. The PDF gets moved to a Print -> Completed folder.
Here’s how to make duplex printing the default setting on your home computer (via Apple):
“Go to http://127.0.0.1:631/printers and find your printer. Click on the button *Set Printer Options*. You should select duplex printing and the orientation that you want to make default. Be sure to click the *Set Printer Options* button when you are done. You will have to supply your administrator’s short user name and password.”
You may need to enable the web interface for printing control. Open Terminal and type: cupsctl WebInterface=”yes”