xe·rog·ra·phy 
(zĭ-rŏgrə-fē)
(zĭ-rŏgrə-fē)n.
A dry photographic or photocopying process in which a negative image formed by a resinous powder on an electrically charged plate is electrically transferred to and thermally fixed as positive on a paper or other copying surface.
xe·rogra·pher n.
xer′o·graphic (zîr′ə-grăfĭk) adj.
xer′o·graphi·cal·ly adv.