利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

12 条记录 (耗时 0.014 秒)

    Developing device and image forming apparatus using the same
    1.
    发明公开
    Developing device and image forming apparatus using the same 审中-公开
    显影装置及图像特此形成装置

    公开(公告)号：EP1333331A3

    公开(公告)日：2009-02-25

    申请号：EP03002143.0

    申请日：2003-01-31

    申请人： Ricoh Company, Ltd.

    发明人： Suzuki, Yuji ,  Shimota, Naohito ,  Shu, Bing ,  Suzuki, Koji ,  Ito, Akihiro, Tohoku Ricoh Co., Ltd.

    IPC分类号： G03G13/09 ,  G03G9/107

    CPC分类号： G03G13/09 ,  G03G9/107 ,  G03G15/0921 ,  G03G2215/0609

    摘要： In a developing device of the present invention, in a developing zone where an image carrier and a developer carrier face each other, the developer carrier carrying a developer thereon moves at a linear velocity of 150 mm/sec or above, but below 500 mm/sec. The amount of the developer conveyed to the developing zone by the developer carrier is between 65 mg/cm 2 and 95 mg/cm 2 . A magnetic flux generated on the developer carrier in the developing zone by a magnetic pole has a flux density having an attenuation ratio of 40 % in the direction normal to the developer carrier. The flux density in the direction normal to the developer carrier, as measured on the surface, is between 100 mT and 200 mT. Magnetic grains, which constitute the developer together with toner grains, have a saturation magnetization value of 40 x 10 -7 x 4π Wb·m/kg or above, but below 50 x 10 -7 x 4π Wb·m/kg.

    Toner, toner container, two-component developer and image forming method and apparatus using the toner
    3.
    发明公开
    Toner, toner container, two-component developer and image forming method and apparatus using the toner 审中-公开
    其中所述调色剂的调色剂使用时，调色剂容器中，双组分显影剂和图像形成方法和装置，

    公开(公告)号：EP1505452A3

    公开(公告)日：2005-09-07

    申请号：EP04017848.5

    申请日：2004-07-28

    申请人： Ricoh Company, Ltd.

    发明人： Hasegawa, Kumi ,  Aoki, Mitsuo ,  Shu, Bing ,  Shiraishi, Keiko ,  Sawada, Toyoshi ,  Nagayama, Masashi

    IPC分类号： G03G9/09 ,  G03G9/08 ,  G03G9/083

    CPC分类号： G03G9/0821 ,  G03G9/083 ,  G03G9/0833 ,  G03G9/0902

    摘要： A toner including a binder resin; and a colorant including an iron oxide compound including Ti in such an amount that the weight of Ti atom is from 10 to 45 % by weight based on the weight of Fe atom therein when measured with a wavelength dispersive fluorescent X-ray analyzer, wherein the content of the black iron oxide compound in the toner is from 15 to 40 % by weight, and the coercive force of the toner is from 2 to 15 kA/m in a magnetic field of 398 Am 2 /Kg when measured with a multi-sample rotation type magnetization measurement system from Toei Industry Co., Ltd. A toner container containing the toner. A two-component developer including the toner and a carrier. An image forming method in which a toner image is formed by performing charging; latent image forming; developing using a developer including the toner; image transferring; image fixing; and cleaning. A process cartridge (30) including at least a developing device (33) using the toner and a housing (35).

    Image forming method estimating a halftone granularity
    4.
    发明公开
    Image forming method estimating a halftone granularity 审中-公开
    维尔法伦·祖尔·巴德尔古贡，沃贝恩·哈尔布通

    公开(公告)号：EP1462863A1

    公开(公告)日：2004-09-29

    申请号：EP04007061.7

    申请日：2004-03-24

    申请人： Ricoh Company Ltd.

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

    IPC分类号： G03G15/00

    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平均半色调粒度设定为0.25以下。 通过新提出的公式测量不同平均亮度位置处的调色剂图像的粒度，平均亮度为40至80的测量值，平均半色调颗粒度是通过测量平均半色调粒度得到的。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。

    Developing device and image forming apparatus using the same
    8.
    发明公开
    Developing device and image forming apparatus using the same 审中-公开
    Entwicklungsvorrichtung undBilderzeugungsgerätHiermit

    公开(公告)号：EP1333331A2

    公开(公告)日：2003-08-06

    申请号：EP03002143.0

    申请日：2003-01-31

    申请人： Ricoh Company, Ltd.

    发明人： Suzuki, Yuji ,  Shimota, Naohito ,  Shu, Bing ,  Suzuki, Koji ,  Ito, Akihiro, Tohoku Ricoh Co., Ltd.

    IPC分类号： G03G13/09 ,  G03G9/107

    CPC分类号： G03G13/09 ,  G03G9/107 ,  G03G15/0921 ,  G03G2215/0609

    摘要： In a developing device of the present invention, in a developing zone where an image carrier and a developer carrier face each other, the developer carrier carrying a developer thereon moves at a linear velocity of 150 mm/sec or above, but below 500 mm/sec. The amount of the developer conveyed to the developing zone by the developer carrier is between 65 mg/cm 2 and 95 mg/cm 2 . A magnetic flux generated on the developer carrier in the developing zone by a magnetic pole has a flux density having an attenuation ratio of 40 % in the direction normal to the developer carrier. The flux density in the direction normal to the developer carrier, as measured on the surface, is between 100 mT and 200 mT. Magnetic grains, which constitute the developer together with toner grains, have a saturation magnetization value of 40 x 10 -7 x 4π Wb·m/kg or above, but below 50 x 10 -7 x 4π Wb·m/kg.

    摘要翻译： 在本发明的显影装置中，在图像载体和显影剂载体彼此面对的显影区中，承载显影剂的显影剂载体以150mm / sec以上的线速度移动，但是低于500mm / 秒。 由显影剂载体输送到显影区域的显影剂的量为65mg / cm 2至95mg / cm 2。 通过磁极在显影区中在显影剂载体上产生的磁通具有在与显影剂载体垂直的方向上具有40％的衰减比的磁通密度。 在表面测量的与显影剂载体垂直的方向上的磁通密度在100mT和200mT之间。 与调色剂颗粒一起构成显影剂的磁性颗粒的饱和磁化强度值为40×10 -7×4〜Wb·m / kg以上，但低于50×10 -7×4〜Wb·m / kg。

    Toner, toner container, two-component developer and image forming method and apparatus using the toner
    10.
    发明公开
    Toner, toner container, two-component developer and image forming method and apparatus using the toner 审中-公开
    Toner，Tonerbehälter，Zweikomponentenentwickler und Bildherstellungsverfahren und Apparat，worin der Toner verwendet wird

    公开(公告)号：EP1505452A2

    公开(公告)日：2005-02-09

    申请号：EP04017848.5

    申请日：2004-07-28

    申请人： Ricoh Company, Ltd.

    发明人： Hasegawa, Kumi ,  Aoki, Mitsuo ,  Shu, Bing ,  Shiraishi, Keiko ,  Sawada, Toyoshi ,  Nagayama, Masashi

    IPC分类号： G03G9/09 ,  G03G9/08 ,  G03G9/083

    CPC分类号： G03G9/0821 ,  G03G9/083 ,  G03G9/0833 ,  G03G9/0902

    摘要： A toner including a binder resin; and a colorant including an iron oxide compound including Ti in such an amount that the weight of Ti atom is from 10 to 45 % by weight based on the weight of Fe atom therein when measured with a wavelength dispersive fluorescent X-ray analyzer, wherein the content of the black iron oxide compound in the toner is from 15 to 40 % by weight, and the coercive force of the toner is from 2 to 15 kA/m in a magnetic field of 398 Am 2 /Kg when measured with a multi-sample rotation type magnetization measurement system from Toei Industry Co., Ltd. A toner container containing the toner. A two-component developer including the toner and a carrier. An image forming method in which a toner image is formed by performing charging; latent image forming; developing using a developer including the toner; image transferring; image fixing; and cleaning. A process cartridge (30) including at least a developing device (33) using the toner and a housing (35).

    摘要翻译： 包含粘合剂树脂的调色剂; 以及着色剂，其包含Ti的氧化铁化合物，其量使得当用波长色散荧光X射线分析仪测量时，Ti原子的重量相对于其中的Fe原子的重量为10〜45重量％，其中， 调色剂中黑色氧化铁化合物的含量为15〜40重量％，调色剂的矫顽力在398Am 2 / Kg的磁场中为2〜15kA / m 2，当用 来自Toei Industry Co.，Ltd.的多样品旋转型磁化测量系统包含调色剂的调色剂容器。 包括调色剂和载体的双组分显影剂。 通过进行充电而形成调色剂图像的图像形成方法; 潜像形成; 使用包括调色剂的显影剂进行显影; 图像传输; 图像固定; 和清洁。 一种处理盒（30），至少包括使用调色剂的显影装置（33）和壳体（35）。