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公开(公告)号：DE2619104A1
公开(公告)日：1976-12-09
申请号：DE2619104
申请日：1976-05-03
Applicant: IBM
Inventor： DREYFUS RUSSELL WARREN , GUTFELD ROBERT JAKOB VON
Abstract: Contactless printer with an electrostatic printing head and a writing electrode is characterised by an arrangement to produce a constant corona discharge for the ionising of a gas. These ions are fed into the space between a writing electrode (14) and the paper carrier (16) in order to reduce the voltage required to effect a flow from the writing electrode to the paper. The writing electrodes are selectively controlled with writing impulse whose amplitude is at least that of the transfer voltage. The physical properties of the paper used change in dependence with the transfer of the writing flow.
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