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1. 发明授权

US5137380A Wire-dot print head 失效
标题翻译： WIRE-DOT打印头
公开(公告)号：US5137380A
公开(公告)日：1992-08-11
申请号：US596724
申请日：1990-10-10
申请人： Hirokazu Andou , Mitsuru Kishimoto , Noboru Ooishi , Yoichi Umezawa
发明人： Hirokazu Andou , Mitsuru Kishimoto , Noboru Ooishi , Yoichi Umezawa
IPC分类号： B41J29/377 , B41J2/28
CPC分类号： B41J2/28
摘要： A wire-dot print head has an armature having a tip to which a print wire is secured, a core provided in confrontation with the armature, a plate spring which is supported in a cantilever fashion and to which the armature is fixed, a permanent magnet assembly generating a magnetic flux to cause the armature to be attracted toward the core overcoming the resilient force of the plate spring, and a coil wound on the core to generate a magnetic flux upon energization to cancel the magnetic flux from the permanent magnet assembly, thereby to release the armature. The permanent magnet assembly includes a first permanent magnet of the samarium-cobalt type, and a second permanent magnet of the neodyminum-iron-boron type or the lanthanoid-iron-boron type.

2. 发明授权

US5474391A Print gap setting in an impact printer 失效
标题翻译：冲击打印机中的打印间隙设置
公开(公告)号：US5474391A
公开(公告)日：1995-12-12
申请号：US136890
申请日：1993-10-18
申请人： Hirokazu Andou , Hideaki Ishimizu , Mitsuru Kishimoto , Yoichi Umezawa , Hiroshi Sakaino , Masahiko Shimosugi , Takanori Mimura
发明人： Hirokazu Andou , Hideaki Ishimizu , Mitsuru Kishimoto , Yoichi Umezawa , Hiroshi Sakaino , Masahiko Shimosugi , Takanori Mimura
IPC分类号： B41J25/308 , B41J25/304
CPC分类号： B41J25/3082 , B41J25/308
摘要： An impact printer having a print head, the print head having a movable armature, a printing wire fixed to the armature, and sensor for detecting movement of the armature. The position of the armature is monitored based on an output of the sensor. A home sensor detects whether the print head is at a home position. A paper end sensor detect whether a printing medium is between the platen and the print head. A gap motor means adjusts a gap between the printing wire and the platen. A gap controller is responsive to detection signals output by said home sensor and said paper end sensor, for controlling the print head to swing the armature so as to cause the tip of said printing wire to strike the platen, determining a time of impact of the tip with the platen based on the monitored position of the armature, performing a comparison of the time of impact with a predetermined impact time, and outputting a drive signal to the gap motor for adjusting the gap according to a result of the comparison.
摘要翻译：具有打印头的冲击打印机，打印头具有可移动的电枢，固定到电枢的打印线以及用于检测电枢的移动的传感器。基于传感器的输出来监测电枢的位置。家庭传感器检测打印头是否处于原始位置。纸端传感器检测打印介质是否位于压板和打印头之间。间隙电动机装置调节印刷线和压板之间的间隙。间隙控制器响应由所述家用传感器和所述纸端传感器输出的检测信号，用于控制打印头摆动电枢，以使所述打印线的末端撞击所述压板，确定所述打印头的影响时间基于电枢的监视位置对压板进行顶端，执行冲击时间与预定冲击时间的比较，并且根据比较结果将驱动信号输出到间隙电动机以调整间隙。

3. 发明授权

US5439302A Self-adjusting controller for dot impact printer 失效
标题翻译：点式打印机自调节控制器
公开(公告)号：US5439302A
公开(公告)日：1995-08-08
申请号：US165462
申请日：1993-12-13
申请人： Hirokazu Andou , Mitsuru Kishimoto , Hideaki Ishimizu , Yoichi Umezawa , Toshiyuki Asaka
发明人： Hirokazu Andou , Mitsuru Kishimoto , Hideaki Ishimizu , Yoichi Umezawa , Toshiyuki Asaka
IPC分类号： B41J2/28 , B41J2/30 , B41J2/25
CPC分类号： B41J2/30 , B41J2/28
摘要： A controller for a dot impact printer has capacitance sensors for sensing the motion of the dot wires in the print head, and a non-volatile, rewritable memory for storing self-adjustment data relating to dot-wire characteristics. A processor controls the driving of the dot wires according to the self-adjustment data stored in the memory. At certain times, the processor causes the dot wires to be driven in a test sequence and updates the self-adjustment data in the memory according to the resulting sensor output. Print quality is thereby maintained for the full guaranteed life of the print head.
摘要翻译：点击式打印机的控制器具有用于感测打印头中的点阵线的运动的电容传感器和用于存储与点线特性有关的自调整数据的非易失性可重写存储器。处理器根据存储在存储器中的自调整数据控制点线的驱动。在某些时候，处理器使得点导线以测试顺序被驱动，并且根据所得到的传感器输出来更新存储器中的自调整数据。从而保持打印质量，保持打印头的完整保质期。

4. 发明授权

US5290113A Wire dot printing head 失效
标题翻译：丝印打印头
公开(公告)号：US5290113A
公开(公告)日：1994-03-01
申请号：US781204
申请日：1991-12-13
申请人： Hirokazu Andoo , Yoichi Umezawa , Mitsuru Kishimoto , Noboru Ooishi
发明人： Hirokazu Andoo , Yoichi Umezawa , Mitsuru Kishimoto , Noboru Ooishi
IPC分类号： B41J2/28 , B41J2/235
CPC分类号： B41J2/28
摘要： A spring charge type wire dot printing head includes front cores 35 and rear cores 36 that are disposed in circles. The front and rear cores are used in pairs, and either one of these paired cores is wound with a coil 39 or 40. Since the inductance of the coils 39 and 40 can be increased, low electric current and low electric power consumption can be realized.
摘要翻译： PCT No.PCT / JP90 / 00820 Sec。 371日期1991年12月13日 102（e）日期1991年12月13日PCT Filed 1990年6月25日PCT公布。公开号WO91 / 00182 日期：1991年1月10日。弹簧充电型线打印头包括设置在圆圈中的前芯35和后芯36。前芯和后芯成对使用，并且这些成对的芯中的任一个被线圈39或40缠绕。由于可以增加线圈39和40的电感，可以实现低电流和低功耗。

5. 发明授权

US5651621A Wire dot print head with print wires fixed to tip portions of armatures differentiated in resiliency 失效
标题翻译：丝印打印头，打印线固定在不同弹性的电枢的尖端部分
公开(公告)号：US5651621A
公开(公告)日：1997-07-29
申请号：US498889
申请日：1995-07-06
申请人： Hideaki Ishimizu , Toshiyuki Asaka , Yoichi Umezawa , Takanori Mimura
发明人： Hideaki Ishimizu , Toshiyuki Asaka , Yoichi Umezawa , Takanori Mimura
IPC分类号： B41J2/28
CPC分类号： B41J2/28
摘要： Resiliency of a flat spring 7 corresponding to an end print wire 12 is set to be greater than that corresponding to a central print wire 12 by varying width of an effective spring portion 7b of a flat spring piece 7A to which an armature 13 is attached depending on positions of corresponding tips of the print wires 12. Distance between a magnet yoke 5 and a core 15 provided between the flat spring 7 and a permanent magnet 4 at a position corresponding to a central print wire 12 side is set to be smaller than that at a position corresponding to an end print wire 12 side by varying it depending on positions of corresponding tips of the print wires 12.
摘要翻译：对应于端部印刷线12的平板弹簧7的弹性通过将电枢13所附接的平板弹簧片7A的有效弹簧部分7b的宽度变化而设置为大于对应于中央印刷线12的弹簧7的弹性力在打印线12的相应末端的位置上。设置在与中心印刷线12侧对应的位置处的板簧7和永磁体4之间的磁轭5和芯15之间的距离设定为小于通过根据打印丝12的相应末端的位置进行变化来对应于端部印刷线12侧的位置。

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