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1. 发明授权

US4869605A Wire-dot printing head with adjustable spring force 失效
标题翻译：具有可调弹簧力的丝印打印头
公开(公告)号：US4869605A
公开(公告)日：1989-09-26
申请号：US233581
申请日：1988-08-18
申请人： Hiroshi Kikuchi , Jiro Tanuma , Hideaki Ishimizu , Toshiyuki Asaka
发明人： Hiroshi Kikuchi , Jiro Tanuma , Hideaki Ishimizu , Toshiyuki Asaka
IPC分类号： B41J2/24 , B41J2/28 , B41J3/12
CPC分类号： B41J2/24 , B41J2/28
摘要： A wire-dot printing head having a plurality of printing elements each including an armature fixedly holding a printing wire on the free end thereof, a plate spring fixedly holding the armature on the free end thereof, a permanent magnet for attracting the armature to strain the plate spring so that strain energy is stored in the plate spring, and an electromagnet which cancels the magnetism of the permanent magnet when energized to release the armature so that the armature is returned to the free position thereof by the strain energy of the plate spring to advance the printing wire for printing. The plate spring has an operating lug portion which can be bent in either direction from outside, and an adjusting lug portion which is formed integrally with the operating lug portion and is moved in the opposite direction when the operating lug portion is moved in one direction to adjust the position of the base end of the armature so that the strain energy stored in the plate spring is varied.

2. 发明授权

US4857005A IC card connecting mechanism 失效
标题翻译： IC卡连接机构
公开(公告)号：US4857005A
公开(公告)日：1989-08-15
申请号：US227540
申请日：1988-07-28
申请人： Hiroshi Kikuchi , Jiro Tanuma , Hideaki Ishimizu , Takao Uchida , Toshiyuki Asaka
发明人： Hiroshi Kikuchi , Jiro Tanuma , Hideaki Ishimizu , Takao Uchida , Toshiyuki Asaka
IPC分类号： G06K17/00 , B42D15/10 , G06K7/00 , G06K19/077 , H01R13/447 , H01R13/44
CPC分类号： G06K7/0047 , H01R13/447
摘要： An IC card connecting mechanism connects an IC card having a terminal array with a connector for connecting the IC card to external equipment. The IC card connecting mechanism includes a frame of the IC card, having a peripheral rim provided with recesses at opposite ends of the front portion thereof, a terminal protecting member of the IC card, having a terminal protecting part for protectively covering the terminal array, and legs extending from the opposite longitudinal sides of the terminal protecting part and held at respective free ends thereof on the frame of the IC card. A body of the connector has guide legs for guiding the IC card upon inserting the IC card in the connector. Lifting devices provided in the body of the connector enter the recesses of the frame to lift up the terminal protecting part of the terminal protecting member when the IC card is inserted in the connector. Thus, the terminal protecting part of the terminal protecting member is lifted up automatically to expose the terminal array for electrical connection with conductors of the connector when the IC card is inserted in the connector.

3. 发明授权

US06398331B1 Apparatus for driving a printhead and method of driving the printhead 失效
标题翻译：用于驱动打印头的装置和驱动打印头的方法
公开(公告)号：US06398331B1
公开(公告)日：2002-06-04
申请号：US09498060
申请日：2000-02-04
申请人： Toshiyuki Asaka , Hideaki Ishimizu , Shigeru Tsunoda , Toshiro Suemune
发明人： Toshiyuki Asaka , Hideaki Ishimizu , Shigeru Tsunoda , Toshiro Suemune
IPC分类号： B41J201
CPC分类号： B41J2/04541 , B41J2/04548 , B41J2/04581 , B41J2/04596
摘要： An apparatus for driving a printhead has a timer, a power supply, and a controller. The power supply applies a drive voltage to the printhead to eject ink drops from the printhead. The timer counts an elapsed time during which the printhead does not eject ink drops. The controller performs an ejection test where the drive voltage drives the printhead a plurality of times to eject a plurality of ink drops. The controller drives the power supply to increase the drive voltage in accordance with a length of the elapsed time. The ejection test is performed at a predetermined length of the elapsed time, the drive voltage and the predetermined length of the elapsed time are selected in accordance with a decrease in an ejection speed of the ink drops. The controller controls the drive voltage such that the surface of meniscus of ink in the orifice is subjected to fine vibration before the ink drop is ejected. The surface of the meniscus is subjected to fine vibration prior to either a printing operation or an ejection test. When the ejection test is performed, the controller determines the drive voltage by adding a first correction voltage to a drive voltage required for a printing operation. When the surface of meniscus is subjected to fine vibration, the controller determines the drive voltage by adding a second correction voltage to the drive voltage.
摘要翻译：用于驱动打印头的装置具有定时器，电源和控制器。电源向打印头施加驱动电压以从打印头喷出墨滴。定时器计算打印头不喷出墨滴的经过时间。控制器执行喷射测试，其中驱动电压驱动打印头多次以喷射多个墨滴。控制器驱动电源以根据经过时间的长度增加驱动电压。按照经过时间的预定长度执行喷射测试，根据墨滴的喷射速度的降低来选择驱动电压和经过时间的预定长度。控制器控制驱动电压，使得在喷墨之前，孔口中的墨水弯月面的表面经受精细的振动。在打印操作或喷射测试之前，弯液面的表面经受精细振动。当进行喷射测试时，控制器通过将第一校正电压加到打印操作所需的驱动电压来确定驱动电压。当弯月面的表面经受精细振动时，控制器通过向驱动电压添加第二校正电压来确定驱动电压。

4. 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。

5. 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。

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