High speed printing apparatus
AssigneeOki Electric Industry Co., Ltd.
InventorsAkinori Watanabe, Matsusaburo Noguchi
Life of this patent
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Abstract
In a high speed printing apparatus in which ions produced between electrodes, to which is applied a high voltage, are passed through mists of ink, and particles of ink adhere to the ions to cause the printing operation to be conducted, said apparatus is characterized in that the air is supplied in such a way that only the desired printing width is left between the recording paper and the ink mists.
Claims6
For a high speed printing apparatus which performs its printing operation by charging ink droplets of an ink mist when said mist passes a pair of electrodes such that said droplets adhere to ions, said ink particles ionically charged being selectively adsorbed on a recording paper to form printed symbols, curtain means for blocking said ionically charged ink droplets from the portion of said recording paper where printing does not occur, said curtain means comprising an air stream, said air stream forming a barrier in front of said portion of said recording paper where printing does not occur.
Dependencies are inferred from the claim text.