| 摘要 |
PURPOSE:To limit the range of the flight locus of nonprinting ink particles and to eliminate capture error or malcaptures by a method wherein charges are given selectively to nonprinted ink particles and the charge amounts are arranged on a equal level. CONSTITUTION:A number of electric stain oscillator 31... are fixed to a case 1 and energized by exciting voltage with a specific frequency and the ink is jetted from each nozzle 3a1.... The ink is separated into ink particles by charged electrodes 41.... These charged particles are deflected between deflection electrodes 611..., brought into collision with a recording paper for printing. In nonprinted particles D2 D3... following said printed charged ink particle D1 are excited electric charges having antipolarity with that of the particle D1 and deflected in an opposite direction. Therefore, the electric charge enough to neutralize said reverse electric charge is given to a nonprinted particle D2 and the particle D2 is made to fly straight through gutters 71, 72,.... EFFECT:The opening of a gutter can be made smaller and, besides, the arrangement becomes easier. |
