There are open source projects to integrate off the shelf ink cartridges with 3d printers http://nerdcreationlab.com/projects/inkshield/ http://nerdcreationlab.

There are open source projects to integrate off the shelf ink cartridges with 3d printers http://nerdcreationlab.com/projects/inkshield/ http://nerdcreationlab.com/projects/inkshield/ A budget 3d printer is like $200, plus $70 for the inkshield. And it isn't really a good printer. A consumer laser printer for half that will do 25 pages per minute actually feed in the paper reliably and the toner lasts longer