US 6,982,734 B2
Printing on electrically writable media and electrically writable displays
Alfred I-Tsung Pan, Sunnyvale, Calif. (US); and Steven Rosenberg, Palo Alto, Calif. (US)
Assigned to Hewlett-Packard Development Company, L.P., Houston, Tex. (US)
Filed on Oct. 06, 2003, as Appl. No. 10/679,922.
Prior Publication US 2005/0073571 A1, Apr. 07, 2005
Int. Cl. B41J 2/00 (2006.01)
U.S. Cl. 347—120 35 Claims
OG exemplary drawing
 
1. A printer for printing on an electrically writable medium, comprising:
a source of an invisible charge species; and
a charge species projector operable to project charge species from the source onto the medium to electrically reorient switchable display elements in the medium.