Patent ID: 7352376
Filing Date: 2008-04-01
Classification: G03G

Abstract:
1. An electrographic printer comprising: an electrode array further comprising a plurality of row lines, a plurality of data lines perpendicular to the row lines, and a plurality of thin-film transistors having a source at the data lines, drain at electrodes of the array, and gates at the row lines; a processor for placing a voltage selected from at least a first and a second voltages on each of the plurality of data lines of the electrode array and for driving the row lines of the array; a first ink applicator for applying electrophoretic ink to the electrode array, the electrophoretic ink comprising charged particles in a liquid component; a development electrode charged to a third voltage for developing an image of charged ink particles; image transfer apparatus for transferring the image to a printing substrate; and ink removal apparatus for removing excess ink from the electrode array.