| 摘要 |
PROBLEM TO BE SOLVED: To improve a resolution without increasing a static latent image form time. SOLUTION: In the electrostatic recording apparatus, an ion inadiation control means 4 is set to one face of a substrate of an insulating material, a plurality of first electrodes 15 extend in a direction perpendicular to a relative movement direction 31 of a recording medium, a plurality of second electrodes 13 are disposed to the other face of the substrate in a direction intersecting the first electrodes 15, and a plurality of pass holes 17 for passing ions are formed to a position where the first electrodes 15 and second electrodes 13 intersect. In the apparatus, each of the second electrodes 13 is divided to four or more unit electrodes 13 in the relative movement direction of the recording medium. The plurality of first electrodes 15 corresponding to the unit electrodes 13 are separated to groups of the number of the pass holes 17 of each unit electrode 13. An impressed voltage of the first electrodes 15 is sequentially switched for each group to control the ion projection.
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