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    • 42. 发明授权
    • Developing device and image forming apparatus
    • 显影装置和图像形成装置
    • US07764887B2
    • 2010-07-27
    • US11737417
    • 2007-04-19
    • Tadashi Kasai
    • Tadashi Kasai
    • G03G15/08
    • G03G15/0893G03G15/0856G03G15/0868G03G2215/0119G03G2215/0822G03G2215/0838
    • A developing device includes a developing roller that supplies two-component developer from a developer container to an image carrier, and a first developer supplying unit and a second developer supplying unit arranged in parallel, one closer to the developing roller than the other is to the developing roller. The first developer supplying unit and the second developer supplying unit circularly convey the two-component developer while stirring the two-component developer to supply the two-component developer to the developing roller. The first developer supplying unit and the second developer supplying unit supply different amounts of the two-component developer.
    • 显影装置包括将显影剂容器中的双组分显影剂供应到图像载体的显影辊,以及平行布置的第一显影剂供给单元和第二显影剂供给单元,其中一个靠近显影辊比另一个更接近显影辊 显影辊。 第一显影剂供应单元和第二显影剂供应单元在搅拌双组分显影剂的同时循环地传送双组分显影剂,以将双组分显影剂供应到显影辊。 第一显影剂供应单元和第二显影剂供应单元提供不同量的双组分显影剂。
    • 45. 发明授权
    • Image forming method and toner for use in the method
    • 用于该方法的图像形成方法和调色剂
    • US07150954B2
    • 2006-12-19
    • US11002218
    • 2004-12-03
    • Mitsuo AokiKumi HasegawaToshiaki HigayaYasushi KoichiYutaka TakahashiTadashi Kasai
    • Mitsuo AokiKumi HasegawaToshiaki HigayaYasushi KoichiYutaka TakahashiTadashi Kasai
    • G03G9/087G03G9/097
    • G03G9/08797G03G9/0819G03G9/0821G03G9/08755G03G9/08793G03G9/08795G03G13/20
    • 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−S1)/S1×100. Alternatively, the toner image before the passage through the nip has a surface roughness of 2.5 μm or less.
    • 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(%)=(V1-V2)/ V1x100 <?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas end =“lead”?> St(%)=(S2-S1)/ S1x100 <?in-line-formula description =“In-line formula”end =“tail”?>或者,通过前的调色剂图像 通过辊隙表面粗糙 年龄在2.5岁以下。
    • 49. 发明授权
    • Wire motion detecting apparatus for wire dot head and wire dot impact
printer apparatus therewith
    • 用于线点头和线点冲击打印机的线运动检测装置
    • US5518327A
    • 1996-05-21
    • US327665
    • 1994-10-21
    • Tadashi Kasai
    • Tadashi Kasai
    • B41J2/30B41J9/00B41J9/52
    • B41J2/30
    • The wire motion detecting apparatus according to the present invention comprises a velocity detecting portion for detecting the velocity of a printing wire, a comparator output signal generating portion for generating a first comparator output signal CMP and a second comparator output signal CMPR corresponding to the detected velocity, a first counter 101 for measuring a motion time T.sub.S for the printing wire, a second counter 102 for measuring a print time T.sub.P for the printing wire, and a third counter 103 for measuring a return time T.sub.R for the printing wire. When the signal level of the first comparator output signal CMP is repeatedly changed between a high level and a low level, the first counter 101 stops counting. Even if an armature is rebounded, the first counter 101 does not resume counting.
    • 根据本发明的线运动检测装置包括用于检测打印线速度的速度检测部分,用于产生第一比较器输出信号CMP的比较器输出信号产生部分和对应于检测速度的第二比较器输出信号CMPR 用于测量印刷线的运动时间TS的第一计数器101,用于测量印刷线的印刷时间TP的第二计数器102和用于测量印刷线的返回时间TR的第三计数器103。 当第一比较器输出信号CMP的信号电平在高电平和低电平之间重复变化时,第一计数器101停止计数。 即使电枢反弹,第一计数器101不重新开始计数。
    • 50. 发明授权
    • Dot print head and method of control over printing therewith
    • 点印头及其印刷方法
    • US5482387A
    • 1996-01-09
    • US292601
    • 1994-08-18
    • Jiro TanumaHideaki IshimizuAkira HagiwaraTadashi Kasai
    • Jiro TanumaHideaki IshimizuAkira HagiwaraTadashi Kasai
    • B41J2/25B41J2/255B41J2/265B41J2/30
    • B41J2/25B41J2/265
    • In a dot print head of an impact type moved in a direction of spacing movement relative to a printing medium, and having a plurality of printing elements each having a printing wire arranged substantially in an elongated circle centered at a line parallel with the direction in which the printing elements are driven, and which is provided with a wire guide having guide elements for the respective printing wires for guiding tips of the printing wires to predetermined positions on said printing medium, the guide elements are divided into at least four rows each extending in the direction orthogonal to said direction of the spacing movement and orthogonal to the direction in which the printing wires extend, and distances between said rows are multiples of 1/240 inches. Each of the printing elements is driven for printing either at a reference timing which occurs once a standard printing cycle having a standard period, at a timing 1/4 of the standard period past said reference timing, at a timing half the standard period past said reference timing, or at a timing 3/4 of the standard period past said reference timing.
    • 在相对于打印介质在间隔移动方向上移动的冲击类型的点打印头中,并且具有多个打印元件,每个印刷元件具有基本上布置在以与其中与 打印元件被驱动,并且其设置有导线器,其具有用于将印刷线的尖端引导到所述打印介质上的预定位置的各个印刷线的引导元件,所述引导元件被分成至少四行,每列延伸到 与所述间隔运动的所述方向正交的方向与印刷线延伸的方向正交的方向,并且所述行之间的距离为1/240英寸的倍数。 每个打印元件被驱动以便在参考定时进行打印,该参考定时是在标准周期之后出现的标准周期,在标准周期过去所述参考定时的时间的1/4处,在标准周期的一半以上, 参考定时,或在标准周期的3/4之后经过所述参考定时。