| 摘要 |
This invention relates to a control method and structure of electrode device of direct electrostatic printing apparatus, which enables multi-leveled print depth on recording medium. By utilizing the electrode device with multiple electrode layers having at least an aperture passing through and corresponding to every print dot, as different level of print depth is needed, different voltage value is applied to the electrode device, thereby establishing different magnitude of electric field and driving varied amount of charged colorants passing through the aperture on the electrode device from the cartridge device and being attached onto the recording medium.
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