公开(公告)号：US5090829A

公开(公告)日：1992-02-25

申请号：US642499

申请日：1991-01-17

申请人： James W. Lee ,  Michael A. Ditonto ,  Dale W. Roddy

发明人： James W. Lee ,  Michael A. Ditonto ,  Dale W. Roddy

IPC分类号： B41J19/18 ,  B41J19/20 ,  B41J29/38 ,  B41J29/42

CPC分类号： B41J19/202 ,  B41J29/38

摘要： A print head carriage of an impact printer is monitored by means of a segmented timing member which is separate from but coupled to and movable in coordination with the carriage. The segmented timing member is associated with a carriage drive motor and preferably comprises a toothed wheel which is rotated by a motor drive gear also used to move the print head carriage. The teeth of the toothed wheel are monitored by an optical sensor with a resulting series of pulses being accumulated to define the rotation of the toothed wheel and thereby the movement and position of the print head carriage. A home carriage position is directly indicated via a carriage position indicating member which is operated by the print head carriage to interrupt the optical sensor of the preferred embodiment.

摘要翻译： 冲击式打印机的打印头托架通过分段的定时构件来监测，该分段定时构件与托架分离但耦合到并与托架协调移动。 分段定时构件与托架驱动马达相关联，并且优选地包括由也用于移动打印头托架的马达驱动齿轮旋转的齿轮。 齿轮的齿由光学传感器监测，所产生的一系列脉冲被累积以限定齿轮的旋转，从而限定打印头滑架的移动和位置。 通过由打印头托架操作的托架位置指示构件直接指示家用托架位置，以中断优选实施例的光学传感器。

公开(公告)号：USD408651S

公开(公告)日：1999-04-27

申请号：US84844

申请日：1998-03-11

申请人： Michael A. Ditonto

设计人： Michael A. Ditonto