Patent ID: 6172693
Filing Date: 2001-01-09
Classification: B41J

Abstract:
An ink jet recording head comprising a housing defining an ink chamber having an ink jet slit at a front side thereof for ejecting colored particles in pigmented ink, at least one electrophoretic electrode disposed at a rear side of said ink chamber receiving an electrophoretic voltage for moving said colored particles by an electrophoretic force, a plurality of ejecting electrodes having respective tips arranged in a row along said ink jet slit, each of said ejecting electrodes receiving an ejecting voltage, a counter electrode opposed to said row of tips of said ejecting electrodes and maintained at a potential, and a pair of stirring electrodes, one of said stirring electrodes being disposed at each end of the row of the tips of said ejecting electrodes, said stirring electrodes receiving a stirring voltage therebetween that reverses polarity at least once to move the particles perpendicular to an ink election direction.