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公开(公告)号：US4247207A
公开(公告)日：1981-01-27
申请号：US2177
申请日：1979-01-09
CPC分类号： B41J2/5056
摘要： An electrostatic matrix printer has a movable print head (1) in which a row of selectively energizable needles (2) is fixed for printing dots on a surface to be printed by selective energization of the needles in response to binary coded electrical signals having a number of bits, equal or less than the number of needles in the row. The binary signals, as well as determining the state of a group of consecutive needles in the row, to print different character columns, also include at least one further bit which determines the position of the said selected group of needles in the row, enabling characters of different height and vertical position to be printed.
摘要翻译： 静电矩阵打印机具有可动打印头（1），其中一排可选择性激励的针（2）被固定，以响应于具有数字的二进制编码的电信号，通过选择性地激励针来打印要打印的表面上的点 的位数，等于或小于行中的针数。 二进制信号以及确定行中的一组连续针的状态以打印不同的字符列，还包括至少一个另外的位，其确定所述所选择的针组在该行中的位置，使得字符 不同的高度和垂直位置要打印。
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公开(公告)号：US4225251A
公开(公告)日：1980-09-30
申请号：US2213
申请日：1979-01-09
CPC分类号： B41J25/316 , B41J19/14 , B41J2/425
摘要： A portable electro-mechanical printer has a platen (1) over which electro-sensitive paper is advanced, relative to a print head (6) having a few row of selectively energizable needles (8) which is movable by an electric motor transmission (18,19,21,24) parallel to the platen in a scanning direction transverse the row of needles. A timing disc (25) is driven by the drive transmission, the disc being subdivided into sectors and cooperating with two relatively displaced photocells (26,27) which produce two periodic signals upon rotation of the disc, these signals being utilized to provide clock pulses controlling successive energizations of the print head needles as the latter is scanned across the paper.
摘要翻译： 一种便携式机电打印机具有压板（1），相对于具有几行可选择性激励的针（8）的打印头（6），电敏纸在其上前进，该打印头可通过电动机传动装置（18）移动 ，19,21,24），其平行于扫描方向横向排针。 定时盘（25）由驱动传动器驱动，盘被细分为扇区并与两个相对位移的光电管（26,27）配合，该光电管在盘旋转时产生两个周期信号，这些信号用于提供时钟脉冲 控制打印头针的连续通电，因为打印头针被扫描穿过纸张。
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