利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

20 条记录 (耗时 0.021 秒)

    Method of adjusting a head gap for a wire dot impact printer
    3.
    发明授权
    Method of adjusting a head gap for a wire dot impact printer 失效
    调整丝网点冲击打印机头部间隙的方法

    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。

    Temperature control in a wire dot printer
    5.
    发明授权
    Temperature control in a wire dot printer 失效
    电线打印机温度控制

    公开(公告)号：US5064302A

    公开(公告)日：1991-11-12

    申请号：US514838

    申请日：1990-04-26

    申请人： Jiro Tanuma ,  Hideaki Ishimizu ,  Tadashi Kasai ,  Chihiro Komori

    发明人： Jiro Tanuma ,  Hideaki Ishimizu ,  Tadashi Kasai ,  Chihiro Komori

    IPC分类号： B41J2/30

    CPC分类号： B41J2/30

    摘要： A wire dot printer has a thermistor that detects the temperature of a print head and a counter that starts counting when the detection temperature exceeds an alarm temperature. The printer can be controlled by switching over between normal-printing and reduced-character-printing in which a reduced number of print wires is used. When the detection temperature exceeds the alarm temperature, the printer will first stop and then control the print head in such a way as to reduce the temperature. Once the temperature drops back down below the alarm temperature, the printer will perform reduced-character-printing for a definite period of time based on the length of time from when the temperature exceeded the alarm temperature to when the temperature dropped back down below the alarm temperature. By increasing the length of time in which reduced-character-printing is carried out, the amount of heat given off by the print head decreases. Furthermore, by basing the time over which reduced-character-printing is performed on the length of time that the alarm temperature was exceeded. It is possible to set the reduced-character-printing time to an appropriate length such that the print head does not overheat and throughout is not excessively impaired.

    Method of and device for printer control
    6.
    发明授权
    Method of and device for printer control 失效
    打印机控制的方法和设备

    公开(公告)号：US5087134A

    公开(公告)日：1992-02-11

    申请号：US504140

    申请日：1990-04-03

    申请人： Jiro Tanuma ,  Hideaki Ishimizu ,  Tadashi Kasai ,  Chihiro Komori

    发明人： Jiro Tanuma ,  Hideaki Ishimizu ,  Tadashi Kasai ,  Chihiro Komori

    IPC分类号： B41J19/18 ,  B41J19/14 ,  B41J19/20 ,  B41J19/76 ,  B41J29/46

    CPC分类号： B41J19/145 ,  B41J19/202

    摘要： In a printer in which a print head and a print medium are moved relative to each other in a spacing direction and in a line-feed direction, the position of the print head in the spacing direction is detected, and the stoppage of the print head during a spacing operation is detected, and the stop position in the spacing direction is stored. When the print head stops, reverse line-feed is performed by a first amount. The spacing operation is then performed in the same direction as before the carriage stopped. A forward line-feed is then performed by the first amount, and then the spacing operation is performed in the opposite direction. If the print head stops again at the same stop positon, an error indication is made. If the print head does not so stop, the spacing operation is continued.

    Dot-matrix printer with impact force determination
    7.
    发明授权
    Dot-matrix printer with impact force determination 失效
    点阵打印机，冲击力确定

    公开(公告)号：US5039238A

    公开(公告)日：1991-08-13

    申请号：US327480

    申请日：1989-03-22

    申请人： Hiroshi Kikuchi ,  Jiro Tanuma ,  Hideaki Ishimizu ,  Chihiro Komori

    发明人： Hiroshi Kikuchi ,  Jiro Tanuma ,  Hideaki Ishimizu ,  Chihiro Komori

    IPC分类号： B41J2/30

    CPC分类号： B41J2/30

    摘要： In a dot-matrix printer including a wire-dot print head having print wires which print dots by impact on a printing medium, and a sensor for sensing the position of the print wires and generating signals indicating the position of the print wires, a parameter is set to determine a printing force with which each of the print wires impacts the printing medium. A control and driving circuit drives the print wire responsive to the signals from the sensors and the set parameter. The combination of the feature of setting a parameter for controlling the printing force and the feature of detecting the position of the print wire enables the control over printing force with a high reproducibility. So printing with an optimum printing force is ensured.

    Wire-dot impact printer having means for detecting displacement of individual print wires
    8.
    发明授权
    Wire-dot impact printer having means for detecting displacement of individual print wires 失效
    线点冲击打印机具有用于检测单个印刷线的位移的装置

    公开(公告)号：US5030020A

    公开(公告)日：1991-07-09

    申请号：US393903

    申请日：1989-07-21

    申请人： Hiroshi Kikuchi ,  Jiro Tanuma ,  Hideaki Ishimizu ,  Chihiro Komori

    发明人： Hiroshi Kikuchi ,  Jiro Tanuma ,  Hideaki Ishimizu ,  Chihiro Komori

    IPC分类号： B41J2/30

    CPC分类号： B41J2/30

    摘要： A wire-dot impact printer includes a wire-dot print head having a plurality of print wires disposed therein. Each of the plurality of print wires has a distal end, and each is displaced in response to a drive signal so as to strike a printing medium with the distal end. A displacement detecting device is provided for detecting a displacement resulting from the drive signal of each of the plurality of print wires and for outputting a corresponding displacement detection signal. A control unit, which controls the overall printing operation of the impact printer, varies the print repetitive cycle of each of the plurality of print wires in accordance with the displacement detection signal outputted by the displacement detecting unit.

    摘要翻译： PCT No.PCT / JP88 / 01190 Sec。 371日期：1989年7月21日 102（e）日期1989年7月21日PCT提交1988年11月25日PCT公布。 公开号WO89 / 04765 日期：1989年6月1日。线点冲击打印机包括具有布置在其中的多个打印线的线点打印头。 多个印刷线中的每一个具有远端，并且每个打印线都响应于驱动信号而移位，以便与远端撞击打印介质。 提供一种位移检测装置，用于检测由多个印刷线中的每一个的驱动信号产生的位移并输出相应的位移检测信号。 控制冲击打印机的整体打印操作的控制单元根据由位移检测单元输出的位移检测信号来改变多个打印线中的每一个的打印重复周期。