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    Toner for developing latent electrostatic images
    1.
    发明授权
    Toner for developing latent electrostatic images 失效
    用于显影静电潜像的调色剂

    公开(公告)号：US4950573A

    公开(公告)日：1990-08-21

    申请号：US121483

    申请日：1987-11-17

    Applicant: Kimitoshi Yamaguchi ,  Kazuhiko Umemura ,  Yoshihiro Nomura

    Inventor： Kimitoshi Yamaguchi ,  Kazuhiko Umemura ,  Yoshihiro Nomura

    IPC: G03G9/08 ,  G03G9/087

    CPC classification number: G03G9/0825 ,  G03G9/08751 ,  G03G9/08773

    Abstract: A toner for developing latent electrostatic images is disclosed, which comprises (a) thermofusible base particles A having a softening point of 80.degree. C. or less, a flow starting temperature of 110.degree. C. or less, and an average particle size of 5 to 25 .mu.m, and (b) small particles B comprising as the main component an organic polymeric material having a softening point at least 5.degree. C. higher than the softening point of the base particles A and no practical softening point, and an average particle size ranging from 0.1 .mu.m or more, but not more than 1/4 of the average particle size of the base particles A, which small particles B are embedded in the surface of the base particles A so as to cover the surface of the base particles A to a depth of less than the particle size of the small particles B.

    Abstract translation: 公开了用于显影静电图像的调色剂，其包含（a）软化点为80℃或更低，流动起始温度为110℃或更低，平均粒度为5的热熔性基础颗粒A 至（b）作为主要成分的小粒子B，其含有软化点比基础粒子A的软化点高5℃以上的有机聚合物，没有实用的软化点，平均粒径 粒径为0.1μm以上且不超过基体颗粒A的平均粒径的1/4，该颗粒B被嵌入基体颗粒A的表面，以覆盖基体颗粒A的表面 基础颗粒A的深度小于小颗粒B的粒度。

    Image forming apparatus and process cartridge removably mounted thereto
    5.
    发明授权
    Image forming apparatus and process cartridge removably mounted thereto 失效
    图像形成装置和可拆卸地安装在其上的处理盒

    公开(公告)号：US07212767B2

    公开(公告)日：2007-05-01

    申请号：US10636637

    申请日：2003-08-08

    Applicant: Hiroshi Hosokawa ,  Kiyonori Tsuda ,  Satoshi Narumi ,  Ryuta Takeichi ,  Yuji Arai ,  Masanori Kawasumi ,  Kazuhiko Umemura

    Inventor： Hiroshi Hosokawa ,  Kiyonori Tsuda ,  Satoshi Narumi ,  Ryuta Takeichi ,  Yuji Arai ,  Masanori Kawasumi ,  Kazuhiko Umemura

    IPC: G03G21/16

    CPC classification number: G03G21/185 ,  G03G21/1623 ,  G03G2221/1642 ,  G03G2221/1684 ,  G03G2221/1884

    Abstract: An image forming apparatus of the present invention includes an apparatus body, an image carrier for carrying a latent image on its surface, and a developing device for developing the latent image to thereby produce a corresponding toner image. A removable member is removably mounted to the apparatus body and positioned in the apparatus body such that a distance between the removable member and a surrounding member around it varies when the removable member is being mounted to or dismounted from the apparatus body. A frame surrounds at least one of the removable member and surrounding member. A contact member contacts, when the removable member is being mounted to or dismounted from the apparatus body, the frame to thereby determine a distance between the removable member and the surrounding member.

    Abstract translation: 本发明的图像形成装置包括装置主体，用于在其表面上承载潜像的图像载体和用于使潜像显影的显影装置，从而产生相应的调色剂图像。 可拆卸构件可移除地安装到装置主体并且定位在装置主体中，使得当可拆卸构件被安装到装置主体或从装置主体卸下时，可移动构件与周围的围绕构件之间的距离变化。 框架围绕可移除构件和周围构件中的至少一个。 当可拆卸构件被安装到装置主体或从设备主体卸下时，接触构件接触框架，从而确定可移除构件与周围构件之间的距离。

    Toner, developer, image forming apparatus, process cartridge and image forming process
    6.
    发明授权
    Toner, developer, image forming apparatus, process cartridge and image forming process 有权
    调色剂，显影剂，成像设备，处理盒和成像过程

    公开(公告)号：US07169525B2

    公开(公告)日：2007-01-30

    申请号：US11184976

    申请日：2005-07-20

    Applicant: Hideki Sugiura ,  Satoshi Mochizuki ,  Yasuaki Iwamoto ,  Yasuo Asahina ,  Kazuhiko Umemura ,  Tomoyuki Ichikawa ,  Shinya Nakayama ,  Tomoko Utsumi ,  Koichi Sakata

    Inventor： Hideki Sugiura ,  Satoshi Mochizuki ,  Yasuaki Iwamoto ,  Yasuo Asahina ,  Kazuhiko Umemura ,  Tomoyuki Ichikawa ,  Shinya Nakayama ,  Tomoko Utsumi ,  Koichi Sakata

    IPC: G03G9/08

    CPC classification number: G03G9/08782 ,  G03G9/0825

    Abstract: The object of the present invention is to provide a toner which is excellent in shelf stability for a long term by producing the toner through controlling the dispersion condition of the wax around the toner surface and through improving, not only the off-set resistance of the toner for rendering the fixing properties of the toner advantageous, but also the blocking resistance of the toner, wherein the toner contains a binder resin, a colorant, and a wax, wherein the amount of the wax is 3% by mass to 21% by mass, and the amount of the wax which is present in the portion of the toner particle which is in the range of from the outermost surface to the depth of 0.3 μm in the toner particle is in a specified range, and at least a part of the wax is present as plural individual wax dispersion particles involved in the toner particles.

    Abstract translation: 本发明的目的是提供一种通过控制调色剂表面周围的蜡的分散状态来生产调色剂，从而长期保持稳定性的调色剂，并且不仅改善了 用于使调色剂的定影性能有利的调色剂，以及调色剂的抗粘连性，其中调色剂含有粘合剂树脂，着色剂和蜡，其中蜡的量为3质量％至21质量％ 质量，并且调色剂颗粒中存在于调色剂颗粒中的最外表面至0.3μm范围内的部分中的蜡的量在特定范围内，并且至少一部分 蜡作为调色剂颗粒中涉及的多个单独的蜡分散体颗粒存在。

    Toner for developing electrostatic image, developer, process for forming image, and image forming apparatus
    7.
    发明授权
    Toner for developing electrostatic image, developer, process for forming image, and image forming apparatus 有权
    用于显影静电图像，显影剂，用于形成图像的工艺的成色剂和成像设备

    公开(公告)号：US07163773B2

    公开(公告)日：2007-01-16

    申请号：US10644938

    申请日：2003-08-21

    Applicant: Hideki Sugiura ,  Satoshi Mochizuki ,  Yasuaki Iwamoto ,  Kazuhiko Umemura ,  Yasuo Asahina ,  Shinya Nakayama

    Inventor： Hideki Sugiura ,  Satoshi Mochizuki ,  Yasuaki Iwamoto ,  Kazuhiko Umemura ,  Yasuo Asahina ,  Shinya Nakayama

    IPC: G03G9/087

    CPC classification number: G03G9/08755 ,  G03G9/0821 ,  G03G9/08793 ,  G03G9/093 ,  G03G9/09328

    Abstract: Spherical toners having excellent fusibility are disclosed. The toners are fusible at low temperatures and are excellent in preservability and therefore charge properties, flowability, and transferability do not deteriorate. The toners contain a colorant and a nitrogen-containing polyester resin, in which the concentration of nitrogen at the surface of toner particles is higher than the concentration of nitrogen of the entire particles. The ratio of the surface concentration to the overall concentration is from 1.2 to 10. Additionally, the nitrogen-containing resin is preferably a polyester resin modified by urea bonds. Also, it is preferred that the toner particles are substantially spherical having an average sphericity E of from 0.90 to 0.99.

    Abstract translation: 公开了具有优异熔融性的球形调色剂。 调色剂在低温下易熔融，保存性优异，因此充电性，流动性和转印性不劣化。 调色剂含有着色剂和含氮聚酯树脂，其中调色剂颗粒表面的氮浓度高于整个颗粒的氮浓度。 表面浓度与总浓度的比例为1.2〜10。另外，含氮树脂优选为通过脲键改性的聚酯树脂。 此外，优选调色剂颗粒基本上为球形，其平均球形度E为0.90至0.99。

    Image forming method, image forming apparatus, and process cartridge
    8.
    发明申请
    Image forming method, image forming apparatus, and process cartridge 审中-公开
    图像形成方法，图像形成装置和处理盒

    公开(公告)号：US20060210908A1

    公开(公告)日：2006-09-21

    申请号：US11377244

    申请日：2006-03-17

    Applicant: Kazuhiko Umemura ,  Yohta Sakon ,  Hiroaki Takahashi ,  Tomoko Utsumi

    Inventor： Kazuhiko Umemura ,  Yohta Sakon ,  Hiroaki Takahashi ,  Tomoko Utsumi

    IPC: G03G21/00

    CPC classification number: G03G21/0011

    Abstract: To provide an image forming method including: forming a latent electrostatic image on a photoconductor; developing the latent electrostatic image using a toner to form a visible image; transferring the visible image onto a recording medium; fixing the transferred visible image to the recording medium; and removing toner particles remained on the photoconductor by means of a cleaning blade, wherein the toner comprises an external additive, and the toner has an average circularity of 0.94 or more, and wherein the cleaning blade has a rebound resilience of 60% or more at 23° C., and the contact pressure of the cleaning blade against the photoconductor is 0.2 N/cm or less.

    Abstract translation: 提供一种图像形成方法，包括：在感光体上形成静电潜像; 使用调色剂显影静电潜像以形成可视图像; 将可见图像转印到记录介质上; 将转移的可见图像固定到记录介质上; 并通过清洁刮板去除留在感光体上的调色剂颗粒，其中调色剂包括外部添加剂，调色剂的平均圆形度为0.94以上，其中，清洁刮板的回弹性为60％以上 23℃，清洁刮板相对于感光体的接触压力为0.2N / cm以下。

    Carrier for electrophotography and developer using the same
    9.
    发明授权
    Carrier for electrophotography and developer using the same 有权
    用于电子照相的载体和使用它的显影剂

    公开(公告)号：US06828075B2

    公开(公告)日：2004-12-07

    申请号：US10153627

    申请日：2002-05-24

    Applicant: Kousuke Suzuki ,  Satoshi Mochizuki ,  Yasuo Asahina ,  Kazuhiko Umemura ,  Hideki Sugiura ,  Minoru Masuda ,  Tomomi Tamura

    Inventor： Kousuke Suzuki ,  Satoshi Mochizuki ,  Yasuo Asahina ,  Kazuhiko Umemura ,  Hideki Sugiura ,  Minoru Masuda ,  Tomomi Tamura

    IPC: G03G900

    CPC classification number: G03G9/1133 ,  G03G9/1136

    Abstract: A carrier for electrophotographic developer comprising carrier particles, each carrier particle having at least one surface-coating layer by resin material, wherein the surface-coating layer containing an acrylic resin and a silicone resin, the acrylic resin is in an amount ranging 10 to 90 wt. % based on the total amount of resin coating ingredients. The carrier shows no accumulation of toner-spents, therefore can obtain a stable electric charge, and has no layer scraping in binder resin layer, therefore can obtain a stable electric resistance, hence occurs no deterioration of images reproduced, by using acrylic resin having high anti-abrasive and high surface energy, whereas it has strong adhesiveness and high fragility, in combination use of silicone resin having poor anti-abrasive and small adhesiveness but has low fragility, thus is hard to cause a toner spent and hard to integrate the spent constituents due to its low surface energy.

    Abstract translation: 包含载体颗粒的电子照相显影剂载体，每个载体颗粒具有至少一个树脂材料的表面涂层，其中含有丙烯酸树脂和有机硅树脂的表面涂层的丙烯酸树脂的量为10至90 重量 基于树脂涂料成分的总量％。 载体不显示调色剂的积累，因此可以获得稳定的电荷，并且在粘合剂树脂层中没有层刮擦，因此可以获得稳定的电阻，因此通过使用具有高的丙烯酸树脂而不会再现图像的劣化 耐磨性高，表面能高，而且具有很强的粘合性和高脆性，组合使用具有差的抗磨损性和粘合性小的有机硅树脂，但脆性低，因此很难使调色剂花费并难以整合 成分由于其低表面能。

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