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1.发明授权Reduced electrode wear in electrolytic printing by pH control of the print reaction zone 失效通过印刷反应区的pH控制，在电解印刷中减少电极磨损
公开(公告)号：US4453171A
公开(公告)日：1984-06-05
申请号：US392208
申请日：1982-06-25
CPC分类号： B41M5/20
摘要： A method of controlling the pH of a print reaction zone in an electrolytic matrix printer is described. Appropriate amounts of a buffering agent are included in the treated surface layer of the recording medium used in the printer to hold the pH of the print reaction zone in the range of 5.0 to 7.0 and, preferably, between 6.0 and 6.5. The pH of the electrolytic reaction zone can also be held in the desired range by adding appropriate amounts of a buffering agent to a supply of recording medium moistening fluid, either before and/or during actual printing, the latter step enabling dynamic buffering control if needed. The described method halts or reduces the degradation of print electrodes by effecting a balance between excess quantities of acid or base material generated in the print reaction zone during printing.
摘要翻译： 描述了一种控制电解质矩阵打印机中打印反应区的pH的方法。 在打印机中使用的记录介质的处理表面层中包含适量的缓冲剂，以将印刷反应区的pH保持在5.0-7.0，优选6.0-6.5的范围内。 在实际印刷之前和/或期间，电解反应区的pH也可以保持在所需范围内，在适当的时间内，向记录介质润湿液供应量加入适量的缓冲剂，后续步骤可以在需要时进行动态缓冲控制 。 所描述的方法通过在印刷期间在印刷反应区中产生的过量的酸或基材之间的平衡来停止或减少印刷电极的劣化。
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2.发明授权Method of and apparatus for controlling gray scale while printing on charge sensitive recording mediums 失效在电荷敏感记录介质上打印时控制灰度的方法和装置
公开(公告)号：US4413269A
公开(公告)日：1983-11-01
申请号：US323843
申请日：1981-11-23
CPC分类号： H04N1/4056
摘要： A method of and apparatus for controlling gray scale in the charge sensitive media of a matrix printer by using constant amplitude write pulses. Their use is intended to overcome registration problems caused by constant movement of the charge sensitive recording media during the actual print cycle. This control method and apparatus are implemented by varying, as a function of the desired intensity of one or more pixels to be printed, the effective write time and the number of constant amplitude pulses applied to any one or more of a plurality of print electrodes over a complete write cycle. The normal printer write cycle is divided into a number of subdivisions, that number being a function of the maximum permissible allowable error that can be perceived by a human eye. Further, the write pulse waveforms used are derived so that there is not more than one write cycle subdivision difference at either termination point of any intensity pixel printed therewith.
摘要翻译： 一种用于通过使用恒定幅度写入脉冲来控制矩阵打印机的电荷敏感介质中灰度级的方法和装置。 它们的用途旨在克服在实际打印周期期间电荷敏感记录介质的恒定运动引起的注册问题。 该控制方法和装置通过根据要打印的一个或多个像素的期望强度，改变施加到多个打印电极中的任何一个或多个打印电极的有效写入时间和恒定幅度脉冲的数量来实现 一个完整的写周期。 正常的打印机写入周期被分成多个细分，该数字是人眼可以感知的最大允许允许误差的函数。 此外，导出使用的写脉冲波形，使得在其印刷的任何强度像素的任一终点处存在不多于一个写周期细分差。
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公开(公告)号：US4502063A
公开(公告)日：1985-02-26
申请号：US481511
申请日：1983-04-01
CPC分类号： G01D15/06
摘要： A print head for use in an electrolytic matrix printer is described. In this print head, predetermined ones of a plurality of electrodes are permanently grounded and are thereby forced to always function as cathodes. The remaining electrodes serve as print electrodes and, depending on the information needed during a given print cycle, either print or are not energized. These print electrodes, therefore, are constrained to always function as anodes. Fixing the function of the electrodes in the print cycle prevents reverse current flow in an electrode from print cycle to print cycle and placing the permanently grounded electrodes intersticially between and about the print electrodes to isolate them, in particular, further enhances this effect. This is particularly beneficial when using platinum print electrodes that form a protective passivation layer which is destroyed by the reverse current flow resulting from alternating electrode functions.
摘要翻译： 描述了用于电解矩阵打印机的打印头。 在该打印头中，多个电极中的预定的电极永久地接地，从而被迫总是用作阴极。 剩余的电极用作打印电极，并且取决于在给定的打印周期期间所需的信息打印或不通电。 因此，这些打印电极被限制为始终用作阳极。 在打印循环中固定电极的功能防止电极从打印周期到打印周期的反向电流流动，并将永久接地的电极间隔地放置在印刷电极之间和周围，以隔离它们，特别是进一步增强了该效果。 当使用形成保护钝化层的铂印刷电极时，这是特别有利的，该保护性钝化层被交替电极功能所产生的反向电流破坏。
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