http://www.morfon.com/inkjet-journal/

While you're doing, I printed a solar cell of the paper looks like any other documents that have just come spitting out of an office printer, with a series of colored rectangles printed on most of its surface. But then, a researcher who collects clips, a pair of wires at one end, and sheds light on the paper. At once an LCD clock at the other end of the wires starts to display the time.
HP T300 Inkjet Web Press — French press feedback