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89 条记录 (耗时 0.049 秒)

    Image forming method and image forming apparatus for same
    61.
    发明授权
    Image forming method and image forming apparatus for same 有权
    图像形成方法及图像形成装置

    公开(公告)号：US07273688B2

    公开(公告)日：2007-09-25

    申请号：US11503152

    申请日：2006-08-14

    申请人： Koji Suzuki ,  Mitsuo Aoki ,  Bing Shu ,  Yasushi Koichi ,  Setsuo Soga ,  Tadashi Kasai ,  Yutaka Takahashi

    发明人： Koji Suzuki ,  Mitsuo Aoki ,  Bing Shu ,  Yasushi Koichi ,  Setsuo Soga ,  Tadashi Kasai ,  Yutaka Takahashi

    IPC分类号： G03G13/20

    CPC分类号： G03G15/5041 ,  G03G15/00 ,  G03G2215/00033 ,  G03G2215/00071 ,  G03G2215/0602

    摘要： An electrophotographic image forming apparatus capable of reliably forming an image with density gradation, one which does not have a low-quality appearance. The estimated average halftone granularity of the toner image after developing but before electrostatic transfer was set at 0.25 or less. The average halftone granularity was found by measuring the granularity of a toner image at locations of different average brightness by means of newly proposed formula, and averaging the measured values for which the average brightness is 40 to 80. The estimated average halftone granularity was obtained by estimating the average halftone granularity of the toner image on a photoreceptor by means of a newly proposed method.

    摘要翻译： 一种能够可靠地形成具有浓度梯度的图像的电子照相图像形成装置，其不具有低质量的外观。 显影后但静电转印前的调色剂图像的估计的平均半色调粒度设定为0.25以下。 通过新提出的公式通过测量不同平均亮度的位置处的调色剂图像的粒度来求出平均半色调粒度，并将平均亮度为40-80的测量值平均。估计的平均半色调粒度通过 通过新提出的方法估计感光体上调色剂图像的平均半色调粒度。

    Image forming method and toner for use in the method
    63.
    发明授权
    Image forming method and toner for use in the method 有权
    用于该方法的图像形成方法和调色剂

    公开(公告)号：US06899986B2

    公开(公告)日：2005-05-31

    申请号：US10252070

    申请日：2002-09-23

    申请人： Mitsuo Aoki ,  Kumi Hasegawa ,  Toshiaki Higaya ,  Yasushi Koichi ,  Yutaka Takahashi ,  Tadashi Kasai

    发明人： Mitsuo Aoki ,  Kumi Hasegawa ,  Toshiaki Higaya ,  Yasushi Koichi ,  Yutaka Takahashi ,  Tadashi Kasai

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G13/20

    CPC分类号： G03G9/08797 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08755 ,  G03G9/08793 ,  G03G9/08795 ,  G03G13/20

    摘要： An image forming method, comprising passing a toner image-bearing sheet through a nip defined between two rollers including a heater roller to fix the toner image on the sheet, wherein the toner image is formed from a toner comprising a binder resin, and a colorant, wherein the toner image before the passage through the nip has a toner volume V1 and a toner image area S1, wherein the toner image after the passage through the nip has a toner volume V2 and a toner image area S2, and wherein a volume change Vt and an area change St defined by the formulas shown below are 30% or less and 20% or less, respectively: Vt(%)=(V1−V2)/V1×100 St(%)=(S2−S2)/S1×100. Alternatively, the toner image before the passage through the nip has a surface roughness of 2.5 μm or less.

    摘要翻译： 一种图像形成方法，包括使调色剂承载片材通过在包括加热辊的两个辊之间限定的辊隙以将调色剂图像定影在片材上，其中调色剂图像由包含粘合剂树脂的调色剂和着色剂形成 其中通过所述压区的所述调色剂图像具有调色剂体积V 1和调色剂图像区域S1，其中通过所述辊隙的调色剂图像具有调色剂体积V 2和调色剂图像面积S 2，并且 其中由下面所示的公式定义的体积变化量Vt和面积变化量St分别为30％以下且20％以下。<？in-line-formula description =“In-line Formulas”end =“lead”？ > Vt（％）=（V 1- V 2）/ V 1x100 <？in-line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In- St（％）=（S 2 -S 2）/ S 1x100。 <？in-line-formula description =“In-line Formulas”end =“tail”？>或者，通过辊隙的通过前的调色剂图像的表面粗糙度为2.5μm或更小。

    Method of adjusting a head gap for a wire dot impact printer
    66.
    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。

    Drive system for wire dot head
    67.
    发明授权
    Drive system for wire dot head 失效
    线头驱动系统

    公开(公告)号：US5330277A

    公开(公告)日：1994-07-19

    申请号：US964260

    申请日：1992-10-21

    申请人： Tadashi Kasai ,  Takao Uchida ,  Jiro Tanuma ,  Naoji Akutsu ,  Chihiro Komori

    发明人： Tadashi Kasai ,  Takao Uchida ,  Jiro Tanuma ,  Naoji Akutsu ,  Chihiro Komori

    IPC分类号： B41J2/30

    CPC分类号： B41J2/30

    摘要： A drive system for a wire dot head is provided with sensors for detecting displacements of corresponding print wires. Each sensor outputs a movement initiation timing signal and an impact timing signal for the corresponding print wire. An electric current to be fed to an associated coil is normally controlled by these timing signals. It is detected whether these timing signals are obtained in a predetermined time period. If not, electric power is continuously fed to the coil or is forcedly cut off so that the timing signals are obtained within the predetermine time period.

    摘要翻译： 用于线点头的驱动系统设置有用于检测相应打印线的位移的传感器。 每个传感器输出针对相应打印线的运动启动定时信号和冲击定时信号。 馈送到相关线圈的电流通常由这些定时信号控制。 检测这些定时信号是否在预定时间段内获得。 如果不是，则将电力连续馈送到线圈或强制切断，使得在预定时间段内获得定时信号。

    Dot matrix print head drive method
    70.
    发明授权
    Dot matrix print head drive method 失效
    点阵打印头驱动方式

    公开(公告)号：US5039237A

    公开(公告)日：1991-08-13

    申请号：US452381

    申请日：1989-12-19

    申请人： Jiro Tanuma ,  Hideaki Ishimizu ,  Tadashi Kasai ,  Hiroshi Sakaino

    发明人： Jiro Tanuma ,  Hideaki Ishimizu ,  Tadashi Kasai ,  Hiroshi Sakaino

    IPC分类号： B41J2/30

    CPC分类号： B41J2/30

    摘要： In a dot matrix print head drive method for controlling head drive signals for driving dot pins in accordance with print pattern signals, a correction factor is set specifically to each dot pin; and the length of time for which the print pattern signals are to remain in effects is varied according to the correction factor, to correct the drive time for each dot pin.

    摘要翻译： 在用于根据打印图案信号控制用于驱动点针的头驱动信号的点阵打印头驱动方法中，对每个点针专门设置校正因子; 并且打印图案信号保持效果的时间长度根据校正因子而变化，以校正每个点针的驱动时间。