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    • 1. 发明申请
    • Electrophotographic image forming apparatus and image forming unit
    • 电子照相图像形成装置和图像形成单元
    • US20070048013A1
    • 2007-03-01
    • US11438735
    • 2006-05-22
    • Shigeaki TokutakeTakao FukayaTsuyoshi ShimodaShinichi Hamaguchi
    • Shigeaki TokutakeTakao FukayaTsuyoshi ShimodaShinichi Hamaguchi
    • G03G15/00
    • G03G15/751G03G5/0503G03G5/0507G03G5/14704G03G5/14726G03G2215/00957G03G2215/0119
    • An electrophotographic image forming apparatus, comprises an electrophotographic photoreceptor; an image forming section for forming a toner image on a surface of the electrophotographic photoreceptor; an intermediate transfer member; a first transferring section for transferring the toner image formed on the surface of the electrophotographic photoreceptor to a surface of the intermediate transfer member; and a second transferring section for transferring the toner image transferred on the surface the intermediate transfer member to a recording medium; wherein the electrophotographic photoreceptor comprises a surface layer forming the surface thereof and containing particles having a number average primary particle diameter of 1 to 300 nm and the surface of the electrophotographic photoreceptor has a hardness of 200 to 350 N/mm2 in universal hardness which is lower than the hardness in universal hardness of the surface of the intermediate transfer member.
    • 电子照相图像形成装置,包括电子照相感光体; 图像形成部分,用于在电子照相感光体的表面上形成调色剂图像; 中间转印部件; 用于将形成在电子照相感光体的表面上的调色剂图像转印到中间转印部件的表面的第一转印部分; 以及第二转印部分,用于将在中间转印部件的表面上转印的调色剂图像转印到记录介质上; 其特征在于,所述电子照相感光体包含形成表面的表面层,并含有数均一次粒径为1〜300nm的微粒,电子照相感光体的表面硬度为200〜350N / mm 2 / SUP>的通用硬度低于中间转印部件表面的通用硬度的硬度。
    • 2. 发明授权
    • Electrophotographic image forming apparatus and image forming unit
    • 电子照相图像形成装置和图像形成单元
    • US07560209B2
    • 2009-07-14
    • US11438735
    • 2006-05-22
    • Shigeaki TokutakeTakao FukayaTsuyoshi ShimodaShinichi Hamaguchi
    • Shigeaki TokutakeTakao FukayaTsuyoshi ShimodaShinichi Hamaguchi
    • G03G15/00
    • G03G15/751G03G5/0503G03G5/0507G03G5/14704G03G5/14726G03G2215/00957G03G2215/0119
    • An electrophotographic image forming apparatus, comprises an electrophotographic photoreceptor; an image forming section for forming a toner image on a surface of the electrophotographic photoreceptor; an intermediate transfer member; a first transferring section for transferring the toner image formed on the surface of the electrophotographic photoreceptor to a surface of the intermediate transfer member; and a second transferring section for transferring the toner image transferred on the surface the intermediate transfer member to a recording medium; wherein the electrophotographic photoreceptor comprises a surface layer forming the surface thereof and containing particles having a number average primary particle diameter of 1 to 300 nm and the surface of the electrophotographic photoreceptor has a hardness of 200 to 350 N/mm2 in universal hardness which is lower than the hardness in universal hardness of the surface of the intermediate transfer member.
    • 电子照相图像形成装置,包括电子照相感光体; 图像形成部分,用于在电子照相感光体的表面上形成调色剂图像; 中间转印部件; 用于将形成在电子照相感光体的表面上的调色剂图像转印到中间转印部件的表面的第一转印部分; 以及第二转印部分,用于将在中间转印部件的表面上转印的调色剂图像转印到记录介质上; 其中电子照相感光体包括形成其表面的表面层,并含有数均一次粒径为1〜300nm的粒子,电子照相感光体的表面的硬度为200〜350N / mm 2,通用硬度较低 比中间转印部件表面的通用硬度硬度高。
    • 5. 发明申请
    • Image forming method, photoreceptor
    • 成像方法,感光体
    • US20070003853A1
    • 2007-01-04
    • US11173405
    • 2005-07-01
    • Keiichi InagakiShigeaki Tokutake
    • Keiichi InagakiShigeaki Tokutake
    • G03G5/147
    • G03G5/14726G03G5/142G03G5/144G03G5/1476G03G5/14773G03G5/14795G03G9/0819
    • An image forming method comprising the steps of; forming a latent image by exposing an organic photoreceptor to light, and developing the latent image by a developer containing a toner to form a toner image, wherein the organic photoreceptor has a surface layer comprising a binder and fluororesin fine particles having an average primary particle diameter of not less than 0.02 μm and less than 0.20 μm and a crystallinity of less than 90%, and has a contact angle for water of 90° or more; and toner particles of the toner has a particle diameter below 0.7×(Dp50) being 10 number percents, Dp50 being 50% number particle diameter. An embodiment may be an organic photoreceptor, which comprises a conductive support; a photosensitive layer provided on the conductive support; and a surface layer containing a binder and a fluorine-containing resin fine particle having a number average primary particle diameter between about 0.02 μm and about 0.20 μm and a crystallinity of less than 90% and a binder resin; wherein a contact angle of the surface layer for water is 90° or more and an absolute value of variation of the contact angle is within 2.2°.
    • 一种图像形成方法,包括以下步骤: 通过使有机感光体曝光而形成潜像,并通过含有调色剂的显影剂显影潜影以形成调色剂图像,其中有机感光体具有包含粘合剂的表面层和平均初级粒径的氟树脂细颗粒 不小于0.02μm和小于0.20μm,结晶度小于90%,并且水的接触角为90°以上; 调色剂的调色剂颗粒的粒径低于0.7倍(Dp50)为10个数,Dp50为50个数量级的粒径。 一个实施方案可以是有机感光体,其包括导电载体; 设置在所述导电支撑体上的感光层; 以及含有粘结剂和数均一次粒径为约0.02μm〜约0.20μm,结晶度小于90%的含氟树脂微粒的表面层和粘合剂树脂; 其中水表面层的接触角为90°以上,接触角变化的绝对值为2.2°以下。
    • 10. 发明授权
    • Image forming method and image forming apparatus
    • 图像形成方法和图像形成装置
    • US07466326B2
    • 2008-12-16
    • US11235578
    • 2005-09-26
    • Shigeaki TokutakeMasao AsanoHiroshi YamazakiYoshihiko Eto
    • Shigeaki TokutakeMasao AsanoHiroshi YamazakiYoshihiko Eto
    • B41J2/435G03G15/00
    • G03G15/043G03G2215/0465
    • An image forming method, comprising the steps of: charging uniformly a surface of an organic photoreceptor while rotating the organic photoreceptor; exposing the charged surface of the photoreceptor with a light beam having a wavelength in the range of 350 nm to 500 nm in a main scanning direction to form a dot-shaped electrostatic latent image on the photoreceptor; and developing the dot-shaped electrostatic latent image with toner to form a dot-shaped toner image on the photoreceptor so as to satisfy the following formulas: 1.1≦B/A≦1.5 and 10≦A≦50, where A is the length (μm) of an exposed dot of the dot-shaped electrostatic latent image in the main scanning direction, and B is the length (μm) of a toner dot of the dot-shaped toner image in the main scanning direction.
    • 一种图像形成方法,包括以下步骤:在旋转有机感光体的同时均匀地充电有机感光体的表面; 在主扫描方向上用波长在350nm至500nm范围内的光束曝光感光体的带电表面,以在感光体上形成点状静电潜像; 并用调色剂显影点状静电潜像,以在感光体上形成点状调色剂图像,以满足下列公式:<?在线公式描述=“在线公式”end =“lead” α> 1.1 <= B / A <= 1.5和10 <= A <= 50,<?in-line-formula description =“In-line Formulas”end =“tail”?>其中A是长度(mum) 在主扫描方向上的点状静电潜像的曝光点,B是点状调色剂图像在主扫描方向上的调色剂点的长度(母体)。