Why can’t Xerox make something like this? Apparently a University in Australia have made a printer that can print rolls of solar cells. Very interest concept and could be used to customize a solar panel. Heck it could even be embedded into a handout to power a circuit (business card for example with a blinky light)
http://gizmodo.com/this-printer-spits-out-10-meters-of-solar-panel-every-m-508966042