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    Image forming method featuring a residual charge control property resulting from a selected toner formulation
    1.
    发明授权
    Image forming method featuring a residual charge control property resulting from a selected toner formulation 失效
    图像形成方法具有由选定的调色剂配方产生的剩余电荷控制性能

    公开(公告)号：US5976755A

    公开(公告)日：1999-11-02

    申请号：US66838

    申请日：1998-04-28

    申请人： Satoshi Yoshida ,  Tsutomu Kukimoto ,  Manabu Ohno ,  Yasukazu Ayaki ,  Satoshi Handa ,  Akira Hashimoto

    发明人： Satoshi Yoshida ,  Tsutomu Kukimoto ,  Manabu Ohno ,  Yasukazu Ayaki ,  Satoshi Handa ,  Akira Hashimoto

    IPC分类号： G03G9/08 ,  G03G9/09 ,  G03G9/093 ,  G03G13/22

    CPC分类号： G03G9/091 ,  G03G9/0904 ,  G03G9/0827 ,  G03G9/093

    摘要： An image forming method includes charging an image carrier for carrying an electrostatic latent image;forming an electrostatic latent image on the charged image carrier;developing the electrostatic latent image with a toner by contacting a toner layer on a surface of a toner carrier with a surface of the image carrier to form a toner image thereon;copying the toner image formed on the surface of the image carrier onto a copy medium;wherein the toner has toner particles containing at least a bonding resin, carbon black and an azo-based iron compound and inorganic fine powder;the carbon black having an average primary particles size within a range of from 25 to 80 nm; andthe azo-based iron compound having a specific structure.

    摘要翻译： 图像形成方法包括对用于承载静电潜像的图像载体进行充电; 在充电图像载体上形成静电潜像; 通过使调色剂载体的表面上的调色剂层与图像载体的表面接触来在调色剂上显影静电潜像以在其上形成调色剂图像; 将形成在图像载体的表面上的调色剂图像复制到复印介质上; 其中调色剂具有至少含有粘结树脂，炭黑和偶氮系铁化合物和无机细粉末的调色剂颗粒; 所述炭黑的平均一次粒径在25〜80nm的范围内; 和具有特定结构的偶氮类铁化合物。

    Charging apparatus and electrophotographic apparatus
    3.
    发明授权
    Charging apparatus and electrophotographic apparatus 失效
    充电设备和电子照相设备

    公开(公告)号：US5724632A

    公开(公告)日：1998-03-03

    申请号：US767802

    申请日：1996-12-17

    申请人： Fumihiro Arahira ,  Shuichi Aita ,  Tsutomu Kukimoto ,  Kiyoshi Mizoe ,  Yoshifumi Hano

    发明人： Fumihiro Arahira ,  Shuichi Aita ,  Tsutomu Kukimoto ,  Kiyoshi Mizoe ,  Yoshifumi Hano

    IPC分类号： G03G15/02

    CPC分类号： G03G15/0241 ,  G03G2215/022

    摘要： A charging apparatus or an electrophotographic apparatus includes an electrophotographic photosensitive member including a photosensitive layer provided on a conductive supporting member, and a charging member including magnetic particles, disposed to be in contact with the electrophotographic photosensitive member, for charging the electrophotographic photosensitive member when a voltage is applied to the charging member. The layer of the electrophotographic photosensitive member most separated from the conductive supporting member has a volume resistivity between 10.sup.8 .OMEGA..cm and 10.sup.15 .OMEGA..cm, and the magnetic particles have a hygroscopic property such that the ratio H/L of the maximum value H to the minimum value L of the amount of water contained within the particles is at least 1 and less than 4.

    摘要翻译： 充电装置或电子照相装置包括电子照相感光构件，其包括设置在导电支撑构件上的感光层，以及包含磁性颗粒的充电构件，设置为与电子照相感光构件接触，用于在电子照相感光构件充电时 向充电部件施加电压。 与导电支撑构件最分离的电子照相感光构件的层的体积电阻率为108欧姆·厘米到1015欧姆·厘米，磁性颗粒具有吸湿性，使得最大值H / 包含在颗粒内的水的量的最小值L至少为1且小于4。

    Dry magnetic electrostatic developer
    6.
    发明授权
    Dry magnetic electrostatic developer 失效
    干磁静电开发商

    公开(公告)号：US5112714A

    公开(公告)日：1992-05-12

    申请号：US614679

    申请日：1990-11-19

    申请人： Eiichi Imai ,  Kiichiro Sakashita ,  Seiichi Takagi ,  Tsutomu Kukimoto

    发明人： Eiichi Imai ,  Kiichiro Sakashita ,  Seiichi Takagi ,  Tsutomu Kukimoto

    IPC分类号： G03G9/087 ,  G03G9/097

    CPC分类号： G03G9/09725 ,  G03G9/08704 ,  G03G9/09708 ,  G03G9/09716

    摘要： A dry developer for developing electrostatic images comprises a) toner particles comprising 100 parts by weight of a binder resin and 1-20 parts by weight of polyalkylene having a ratio of weight average molecular weight to number average molecular weight of 2.0-10.0 and Z average molecular weight determined by gel permeation chromatography of 10,000-200,000, and containing 5-60% by weight of a component soluble in n-hexane at boiling point, kinetic friction coefficient of the toner particles being 0.20-0.50, and b) non-magnetic inorganic fine powders having BET specific surface area according to a nitrogen adsorbing method of 0.5-500 m.sup.2 /g.An image forming method comprises using the dry developer to develop electrostatic latent images on a photosensitive member having a surface hardness of 8 g or more, transferring the developed images to a receiving member, and removing the toner particles remaining on the photosensitive member by a cleaning means accompanying abrasion.

    Dry toner, dry toner production process, and image forming method
    7.
    发明授权
    Dry toner, dry toner production process, and image forming method 失效
    干粉，干粉生产工艺和成像方法

    公开(公告)号：US06635398B1

    公开(公告)日：2003-10-21

    申请号：US09695079

    申请日：2000-10-25

    申请人： Keiji Komoto ,  Tsutomu Kukimoto ,  Tatsuhiko Chiba ,  Akira Hashimoto

    发明人： Keiji Komoto ,  Tsutomu Kukimoto ,  Tatsuhiko Chiba ,  Akira Hashimoto

    IPC分类号： G03G9087

    CPC分类号： G03G9/0821 ,  G03G9/0827 ,  G03G9/08737

    摘要： A dry toner has toner particles containing at least a binder resin, a colorant and a wax component and an external additive. The binder resin contains a component derived from a monomer selected from butadiene, isoprene and chloroprene. The toner has a main Tg from 40° C. to 70° C. When specific surface area measured by the BET method in an environment of 23° C. atmospheric temperature and 65% relative humidity is represented by A (m2/g) and specific surface area measured by the BET method in an environment of 50° C. atmospheric temperature and 3% relative humidity is represented by B (m2/g), the toner satisfies the following relationship: 0.8≦A≦4.0, 0.80≦(B/A)≦1.05. The toner has a circle-corresponding number-average particle diameter D1 from 2 to 10 &mgr;m, an average circularity from 0.950 to 0.995 and a circularity standard deviation less than 0.040. The toner has a main-peak molecular weight from 2,000 to 100,000 and contains a THF-insoluble matter from 5 to 60% by weight.

    摘要翻译： 干燥调色剂具有至少含有粘合剂树脂，着色剂和蜡组分的调色剂颗粒和外部添加剂。 粘合剂树脂含有源自选自丁二烯，异戊二烯和氯丁二烯的单体的成分。 调色剂的主要Tg为40℃至70℃。当在23℃环境温度和65％相对湿度的环境中通过BET法测得的比表面积由A（m 2 / g）和通过BET法在50℃环境温度和3％相对湿度的环境中测量的比表面积由B（m 2 / g）表示，调色剂满足以下关系：0.8 <= A <= 4.0,0.80 <=（B / A）<= 1.05。 调色剂具有2至10μm的圆对应的数均粒径D1，0.950至0.995的平均圆形度和小于0.040的圆形度标准偏差。 调色剂的主峰分子量为2,000〜100,000，含有5〜60重量％的THF不溶物。

    Toner and image forming method
    8.
    发明授权
    Toner and image forming method 失效
    调色剂和成像方法

    公开(公告)号：US06610454B2

    公开(公告)日：2003-08-26

    申请号：US09146356

    申请日：1998-09-03

    申请人： Akira Hashimoto ,  Tsutomu Kukimoto ,  Manabu Ohno ,  Tsuyoshi Takiguchi ,  Yasukazu Ayaki ,  Satoshi Handa ,  Masanori Ito ,  Keiji Komoto

    发明人： Akira Hashimoto ,  Tsutomu Kukimoto ,  Manabu Ohno ,  Tsuyoshi Takiguchi ,  Yasukazu Ayaki ,  Satoshi Handa ,  Masanori Ito ,  Keiji Komoto

    IPC分类号： G03G9087

    CPC分类号： G03G9/08757 ,  G03G9/08795

    摘要： A toner is comprised of a binder resin, a colorant and a wax. The binder resin has a polycarbonate resin in an amount of from 0.1% by weight to 50.0% by weight and a resin other than the polycarbonate resin in an amount of from 50.0% by weight to 99.9% by weight, based on the weight of the binder resin. In molecular weight distribution as measured by gel permeation chromatography of tetrahydrofuran-soluble matter, the toner contains in an amount of 15.0% by weight or less based on the weight of the toner a component which has in its structure a repeating unit of the polycarbonate resin and is contained in components having a molecular weight of 1,000 or less.

    摘要翻译： 调色剂由粘合剂树脂，着色剂和蜡组成。 粘合剂树脂的聚碳酸酯树脂的量为0.1重量％〜50.0重量％，除聚碳酸酯树脂以外的树脂的重量比为50.0重量％〜99.9重量％ 粘合剂树脂。 在通过四氢呋喃可溶物质的凝胶渗透色谱法测量的分子量分布中，调色剂的含量相对于调色剂的重量为15.0重量％，其组分为聚碳酸酯树脂的重复单元 并且含有分子量为1,000以下的成分。

    Magnetic toner and image-forming method making use of the same
    9.
    发明授权
    Magnetic toner and image-forming method making use of the same 有权
    使用磁性调色剂和成像方法

    公开(公告)号：US06596452B2

    公开(公告)日：2003-07-22

    申请号：US09788399

    申请日：2001-02-21

    申请人： Michihisa Magome ,  Tsutomu Kukimoto ,  Tsuyoshi Takiguchi ,  Tatsuhiko Chiba ,  Akira Hashimoto ,  Keiji Komoto

    发明人： Michihisa Magome ,  Tsutomu Kukimoto ,  Tsuyoshi Takiguchi ,  Tatsuhiko Chiba ,  Akira Hashimoto ,  Keiji Komoto

    IPC分类号： G03G9083

    CPC分类号： G03G9/0833 ,  G03G9/0827 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0838 ,  G03G9/08708 ,  G03G9/08793 ,  G03G9/08797 ,  Y10S430/102

    摘要： A magnetic toner comprising magnetic toner particles containing at least a binder resin, a magnetic material containing a magnetic iron oxide, and a release agent. The magnetic toner has a weight-average particle diameter of from 3 &mgr;m to 10 &mgr;m, a magnetization intensity (saturation magnetization) of from 10 Am2/kg to 50 Am2/kg (emu/g) under application of a magnetic field of 79.6 kA/m (1,000 oersteds), an average circularity of 0.970 or more, a ratio of weight-average particle diameter to number-average particle diameter, of 1.40 or less, iron and an iron compound which stand liberated from the magnetic toner particles at a liberation percentage of from 0.05% to 3.00%, and a resin component having a tetrahydrofuran-insoluble matter in an amount of from 3% by weight to 60% by weight. Also disclosed is an image-forming method making use of the magnetic toner.

    摘要翻译： 包含至少含有粘合剂树脂的磁性调色剂颗粒，含有磁性氧化铁的磁性材料和脱模剂的磁性调色剂。 磁性调色剂的重均粒径为3μm〜10μm，在施加79.6kA的磁场下，磁化强度（饱和磁化强度）为10Am 2 / kg〜50Am 2 / kg（emu / g） / m（1,000奥斯特），平均圆形度为0.970以上，重均粒径与数均粒径的比值为1.40以下，铁和铁化合物在磁性调色剂颗粒中释放出来 释放百分比为0.05％〜3.00％，以及四氢呋喃不溶物质量为3重量％〜60重量％的树脂成分。 还公开了利用磁性调色剂的图像形成方法。