Patent ID: 6130691
Filing Date: 2000-10-10
Classification: B41J

Abstract:
An apparatus comprising:a first number K (K is an integer) of first electrodes each for ejecting an aggregation of particulate matter in a predetermined direction;an second electrode located at a distance from the first electrodes in the predetermined direction;a second number M (M is an integer smaller than K) of electrophoresis electrodes located at a distance from the ejection electrodes in an opposite direction to the predetermined direction;a first driving controller for driving a selected one of N groups into which the K ejection electrodes are divided; anda second driving controller for driving a selected one of the M electrophoresis electrodes,wherein ejection of a desired first electrode is caused by driving a selected one of the N groups and a selected one of the M electrophoresis electrodes in a state that a predetermined voltage is applied to the second electrode.