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公开(公告)号：US5310271A
公开(公告)日：1994-05-10
申请号：US866857
申请日：1992-04-10
摘要： A print head has a solenoid driving means which employs a filler mixed with a lubricating oil to fix an exciting coil to the core. The filler prevents the layer winding from being shorted due to corrosion of the exciting coil and prevents mechanical abrasion of the armature by supplying lubricating oil during extended operation.
摘要翻译： 打印头具有螺线管驱动装置，其使用与润滑油混合的填料将励磁线圈固定到芯上。 该填料防止了层绕组由于励磁线圈的腐蚀而短路，并且在延长的操作期间通过供给润滑油来防止电枢的机械磨损。
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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。
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公开(公告)号：US5439302A
公开(公告)日：1995-08-08
申请号：US165462
申请日：1993-12-13
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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公开(公告)号：US5518323A
公开(公告)日：1996-05-21
申请号：US91210
申请日：1993-07-14
申请人： Hiroshi Sakaino , Hideaki Ishimizu , Mitsuru Kishimoto , Noboru Ooishi , Masayuki Ishikawa , Chihiro Komori , Naoji Akutsu , Jiro Tanuma , Tadashi Kasai
发明人： Hiroshi Sakaino , Hideaki Ishimizu , Mitsuru Kishimoto , Noboru Ooishi , Masayuki Ishikawa , Chihiro Komori , Naoji Akutsu , Jiro Tanuma , Tadashi Kasai
IPC分类号： B41J2/30 , B41J11/20 , B41J25/308 , B41J29/46
CPC分类号： B41J25/3082 , B41J25/308
摘要： According to a method of adjusting a head gap, a wire dot head is set to a predetermined position of a reference head gap; a printing pattern for detecting printing time is printed by a plurality of pins; reference printing times of respective pins are detected. Next, a test printing is performed with test printing dots previously selected from printing data, and printing time of the test printing is detected. Then, the thickness of the printing media is calculated based on the reference printing time and the printing time of the test printing. At that time, a rule of thumb in which the difference of the printing time corresponds to the difference of the head gap, is used. Then, a shift amount of the wire dot head is calculated for setting the head gap to an optimum value according to the thickness of the printing media, and gap shifting mechanism shifts the wire dot head by the shift amount. This leads to highly accurate detection of the head gap and improves printing quality thereof.
摘要翻译： 根据调整头部间隙的方法，将丝点头设定在基准头间隙的预定位置; 用于检测打印时间的打印图案由多个针打印; 检测相应引脚的参考打印时间。 接下来，使用先前从打印数据中选择的测试打印点执行测试打印，并且检测打印测试打印时间。 然后，基于参考打印时间和测试打印的打印时间来计算打印介质的厚度。 此时，使用其中打印时间的差异对应于头部间隙的差异的经验法则。 然后，根据打印介质的厚度，计算出打印头间隙的最佳值的位移量，并且间隙移动机构使丝网头移动移位量。 这导致头间隙的高精度检测并提高其打印质量。
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公开(公告)号：US4778292A
公开(公告)日：1988-10-18
申请号：US54396
申请日：1987-05-26
CPC分类号： B41J2/28
摘要： A dot print head includes a spring plate having a plurality of integral tongues arranged successively along one longitudinal side edge thereof, a plurality of armatures each fixedly attached at a part at least excluding the rear end thereof to the upper surface of a respective tongue of the spring plate with the rear end of each armature located on the side of the fixed longitudinal side portion of the spring plate with respect to the fixed point of primary vibration thereof caused by the tongue of the spring plate, and a plurality of styluses each fixed to the free end of a respective armature. A yoke member is fixedly attached to the upper surface of the fixed longitudinal side portion of the spring plate and has a plurality of recesses for loosely receiving the armatures therein, to exert the effect of a magnetic field on the corresponding armatures. A restrictor is located on the respective path of the respective rear end of each armature to limit the movement of the respective rear end of the armature. A driver drives the armatures and a guide guides the styluses. A fastener fastens the spring plate, the yoke, the restrictor, the driver and the guide to a base plate.
摘要翻译： 点打印头包括弹簧板，弹簧板具有沿着其一个纵向侧边缘连续布置的多个整体舌片，多个衔铁各自固定地附接到至少不包括其后端的部分上， 每个电枢的后端的弹簧板位于弹簧板的固定纵向侧部分相对于由弹簧板的舌部引起的主要振动的固定点的侧面上，并且多个触针各自固定到 相应电枢的自由端。 轭构件固定地附接到弹簧板的固定纵向侧部的上表面，并且具有用于在其中松动地接收电枢的多个凹部，以在相应的电枢上施加磁场的作用。 限流器位于每个衔铁的相应后端的相应路径上，以限制衔铁的相应后端的运动。 驱动器驱动电枢并且引导件引导触笔。 紧固件将弹簧板，轭，限制器，驱动器和引导件紧固到基板。
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公开(公告)号：US5165808A
公开(公告)日：1992-11-24
申请号：US598644
申请日：1990-12-12
申请人： Hirokazu Andou , Hiroshi Kikuchi , Tatsuya Koyama , Mitsuru Kishimoto , Kiyoshi Ikeda , Minoru Teshima
发明人： Hirokazu Andou , Hiroshi Kikuchi , Tatsuya Koyama , Mitsuru Kishimoto , Kiyoshi Ikeda , Minoru Teshima
摘要： A spring-charged wire dot print head having printing wires is provided with back poles paired up respectively with the cores of electromagnets for cancelling the magnetic flux produced by a permanent magnet, to eliminate the adverse effect of magnetic interference liable to occur in driving the adjacent printing wires. The adjacent pairs of cores and back poles are opposite to each other with respect to the polarity of the magnetic path of the magnetic flux produced by the permanent magnet.
摘要翻译： PCT No.PCT / JP90 / 00148 Sec。 371 1990年12月12日第 102（e）1990年12月12日日期PCT提交1990年2月7日PCT公布。 公开号WO90 / 09285 日期：1990年8月23日。具有印刷线的弹簧带电点印头设置有分别与电磁铁芯成对的后极，用于消除永磁体产生的磁通，消除磁干扰的不利影响 容易在驱动相邻的印刷线时发生。 相邻的磁芯和后极对相对于由永磁体产生的磁通量的磁路的极性彼此相对。
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公开(公告)号：US5137380A
公开(公告)日：1992-08-11
申请号：US596724
申请日：1990-10-10
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.
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公开(公告)号：US5232295A
公开(公告)日：1993-08-03
申请号：US759161
申请日：1991-09-13
CPC分类号： B41J2/24 , Y10T29/49076
摘要： A permanent magnet suitable for use in a wire print head is formed of plural split segments. Each split segment is formed by compressing metal powder in a punching direction in the presence of a magnetic field that is perpendicular to the punching direction. The split segments are combined together into an annular configuration. The permanent magnet so formed is attached to a base, followed by the assembly of a base plate and cores to form a magnet assembly. The base plate and the cores are then surface-finished so as to be flush relative to each other.
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公开(公告)号：US4906116A
公开(公告)日：1990-03-06
申请号：US324485
申请日：1989-03-16
摘要： In a spring-charge wire-dot print head, a support part of a plate spring is clamped, at its outer periphery, between a protruding member disposed on the front surface of the outer periphery of a spacer and a protruding member disposed on the rear surface of the outer periphery of a yoke, and the support part of the plate spring is additionally supported, at the rear surface of its inner periphery, by a protruding member disposed on the front surface of the inner periphery of the spacer.
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公开(公告)号：US4950092A
公开(公告)日：1990-08-21
申请号：US269713
申请日：1988-11-10
申请人： Hiroshi Kikuchi , Youichi Umezawa , Hirokazu Andou , Minoru Teshima , Noboru Ohishi , Mitsuru Kishimoto
发明人： Hiroshi Kikuchi , Youichi Umezawa , Hirokazu Andou , Minoru Teshima , Noboru Ohishi , Mitsuru Kishimoto
IPC分类号： B41J2/265
CPC分类号： B41J2/265
摘要： In a wire dot print head having print wires extending through an opening of a guide nose, the guide nose comprises two halves. The print head may further comprise a wire guide which is fitted in the guide nose and through which the print wires extend, and the wire guide may be clamped by the two halves. In another embodiment, the half members have abutting surfaces provided with semi-circular grooves, which when the guide nose halves are assembled, form guide holes in which the print wires are slidably supported. The use of the two halves facilitates assembly of the print head and reduces noise.
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