2002 Volume 41 Issue 2 Pages 130-137
In the print system that water-based ink is transported from the free surface of the ink layer to the paper with electrostatic forces, conditions that independently control ink transportation of adjacent pixels have been approved through 3-D numerical analysis. The following conclusions have been obtained from this study. (1) Individual control of ink transportation of each pixel requires at least 254μm distance (correspond to 100dpi) between centers of any adjacent electrodes. (2) When a distance between centers of adjacent electrodes is 254μm, the bias voltage of adjacent electrodes which do not process ink transportation must be 0V in order to avoid Cross-Talk when the switching voltage is added. (3) When a distance between centers of adjacent electrodes is 254μm, a volume of ink transportations may vary over 7 times depending on influences from adjacent electrodes. It is necessary to reduce the influences of adjacent electrodes in order to make this print system practicable.
