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1. 发明授权

US3974765A Apparatus for correcting the way in which print hammers strike 失效
标题翻译：用于校正打印锤打击方式的装置
公开(公告)号：US3974765A
公开(公告)日：1976-08-17
申请号：US540821
申请日：1975-01-14
申请人： Alain Francois Jossic
发明人： Alain Francois Jossic
IPC分类号： B41J1/20 , B41J9/14 , G06K15/08 , B41J9/26
CPC分类号： B41J9/14 , B41J1/20 , G06K15/08
摘要： The disclosure describes a printer in which characters are moved past a sheet support on an endless belt. Hammers move from a rest position to a strike position in order to strike the characters against the sheet. The time at which the hammers are moved from their rest positions so that the characters can be accurately struck irrespective of belt speed variations by means of a strike correction circuit arrangement which includes a first sensor means positioned with respect to the endless belt for generating a synchronizing pulse in response to the movement of a reference indicator on the belt past a first predetermined position and a second sensor means associated with the endless belt for generating a check pulse in response to movement of another indicator means on the belt past a second predetermined location. A logic circuit generates a signal representing
摘要翻译：本公开描述了一种打印机，其中字符被移动经过环形带上的纸张支撑。锤子从静止位置移动到打击位置，以便将角色撞击在纸张上。锤子从其静止位置移动的时间，使得通过罢工校正电路装置，无论皮带速度变化如何，都能够精确地敲击人物，包括相对于环形带定位的第一传感器装置，用于产生同步响应于皮带上的参考指示器移动通过第一预定位置的脉冲，以及与环形带相关联的第二传感器装置，用于响应于另一指示器装置在带上经过第二预定位置的移动而产生检查脉冲。逻辑电路产生表示的信号

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