| 摘要 |
PURPOSE:To make it possible to subject even a line head to polarization processing after machining by applying positive and negative voltages, respectively, onto a set of electrodes so that the wall between individual ink paths is polarized in predetermined direction thereby polarizing the wall associated with both electrodes in the array direction and preventing application of voltage onto at least one adjacent electrode. CONSTITUTION:Electrodes 1, 2 constitute a set and two electrodes 5, 6, separated by two electrodes 3, 4 from the right side of the electrode set, constititute another electrode set. Similarly, electrodes 9 and 10, 13 and 14, 17 and 18 constitute electrode sets, respectively. Positive voltage is then applied on the left side electrodes 1, 5, 9, 13 of respective electrode sets whereas a negative voltage is applied on the right side electrodes 2, 6, 10, 14, 18. Consequently, the barrier 12 of each electrode set is polarized in the array direction. Since the applying voltage is equal to 2kV/mmX0.1mm=200V for a barrier having thickness of 0.1mm, the barrier can be polarized easily even with a considerably low voltage. |
