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1. 发明专利

JP2012185300A Electrophotographic photoreceptor, image forming apparatus, and process cartridge 审中-公开
标题翻译：电子照相机，图像形成装置和工艺盒
公开(公告)号：JP2012185300A
公开(公告)日：2012-09-27
申请号：JP2011047976
申请日：2011-03-04
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： ISHIKAWA ISAMU , SAITO YOHEI
IPC分类号： G03G5/147
摘要： PROBLEM TO BE SOLVED: To suppress the occurrence of biased wear, and the generation of abnormal noise from a blade.SOLUTION: An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer on the conductive substrate. The outermost surface layer of the photosensitive layer contains fluororesin particles and a certain specific acrylic acid-based alkyl fluoride-containing copolymer with the weight average molecular weight of 150,000 or more and 200,000 or less. The film thickness of the outermost surface layer is 40 μm or more.
摘要翻译：要解决的问题：抑制偏置磨损的发生和来自刀片的异常噪声的产生。解决方案：电子照相感光体包括导电基底和导电基底上的感光层。感光层的最外表面层含有氟树脂颗粒和重均分子量为15万以上至20万以下的特定丙烯酸系烷基氟化物的共聚物。最外表面层的膜厚为40μm以上。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011209309A Electrophotographic photoreceptor, process cartridge and image forming apparatus 有权
标题翻译：电子照相机，过程盒和图像形成装置
公开(公告)号：JP2011209309A
公开(公告)日：2011-10-20
申请号：JP2010073716
申请日：2010-03-26
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： ESUMI TETSUYA , ISHIKAWA ISAMU
IPC分类号： G03G5/05 , G03G5/047 , G03G5/147
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor suppressing cleaning failure caused by curling of a cleaning blade.SOLUTION: The electrophotographic photoreceptor comprises a support and a photosensitive layer provided on the support, and has projections on the surface containing aggregates of fluorocarbon resin particles, wherein the ten-point average roughness (Rz) of the surface is 1.0 μm or more and 2.0 μm or less.
摘要翻译：要解决的问题：提供一种抑制由清洁刮板卷曲引起的清洁故障的电子照相感光体。解决方案：电子照相感光体包括支撑体和设置在支撑体上的感光层，并且在包含碳氟树脂颗粒聚集体的表面上具有突起其中，表面的十点平均粗糙度（Rz）为1.0μm以上且2.0μm以下。

3. 发明专利

JP2010204136A Electrophotographic photoreceptor, process cartridge and image forming apparatus 有权
标题翻译：电子照相机，过程盒和图像形成装置
公开(公告)号：JP2010204136A
公开(公告)日：2010-09-16
申请号：JP2009046193
申请日：2009-02-27
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： NUKADA HIDEMI , MIURA MASARU , YAMAMOTO SHINYA , ISHIKAWA ISAMU , ESUMI TETSUYA
IPC分类号： G03G5/147
CPC分类号： G03G5/0539 , G03G5/0592
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which suppresses the rise of the residual potential and is excellent in durability, and to provide a process cartridge and an image forming apparatus using the electrophotographic photoreceptor.
SOLUTION: The electrophotographic photoreceptor has at least a photosensitive layer on a conductive substrate, wherein a layer located on the surface of the side where the photosensitive layer is disposed contains fluorine-containing resin particles and a fluorinated graft polymer having 1-7C fluorinated alkyl group, and an area for a polystyrene equivalent molecular weight of 700,000 or more in a gel permeation chromatography (GPC) chart of the fluorinated graft polymer is 5% or more and 20% or less of the total area. The process cartridge and the image forming apparatus using the electrophotographic photoreceptor are also provided.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供抑制残留电位上升并且耐久性优异的电子照相感光体，并提供使用电子照相感光体的处理盒和成像装置。解决方案：电子照相感光体在导电性基板上具有至少一层感光层，其中位于感光层一侧的表面上的层含有含氟树脂颗粒和含有1-7C的氟化接枝聚合物氟化烷基，氟化接枝聚合物的凝胶渗透色谱（GPC）图中聚苯乙烯换算分子量为70万以上的面积为总面积的5％以上且20％以下。还提供了使用电子照相感光体的处理盒和成像设备。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2010197852A Image forming apparatus and process cartridge 有权
标题翻译：图像形成装置和处理盒
公开(公告)号：JP2010197852A
公开(公告)日：2010-09-09
申请号：JP2009044368
申请日：2009-02-26
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： ISHIKAWA ISAMU
IPC分类号： G03G5/147 , G03G9/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus and a process cartridge which secures cleaning property of the surface of an image retaining body and improves the efficiency of transfer as compared to the case where fluororesin particles having specified particle size relation are not applied to a toner and the image retaining body.
SOLUTION: In the image forming apparatus, the outermost surface layer of the image retaining body contains first fluororesin particles, the toner contains toner particles and second fluororesin particles and, when the volume average primary particle size of the first fluororesin particles is D1 and the volume average primary particle size of the second fluororesin particles is D2, the following relation holds: (D1×1.05)
摘要翻译：要解决的问题：提供一种图像形成装置和处理盒，其与具有特定粒度关系的氟树脂颗粒的情况相比，确保了图像保持体的表面的清洁性能并提高了转印效率不适用于调色剂和图像保持体。解决方案：在图像形成装置中，图像保持体的最外表面层包含第一氟树脂颗粒，调色剂含有调色剂颗粒和第二氟树脂颗粒，并且当第一氟树脂颗粒的体积平均一次粒径为D1 并且第二氟树脂粒子的体积平均一次粒径为D2，以下关系成立：（D1×1.05）

5. 发明专利

JP2012203397A Electrophotographic photoreceptor, image forming apparatus, and process cartridge 审中-公开
标题翻译：电子照相机，图像形成装置和工艺盒
公开(公告)号：JP2012203397A
公开(公告)日：2012-10-22
申请号：JP2011071186
申请日：2011-03-28
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： ISHIKAWA ISAMU , SHOJI YOSHIFUMI
IPC分类号： G03G5/05 , G03G5/047 , G03G5/147
摘要： PROBLEM TO BE SOLVED: To obtain images having excellent thin line reproducibility.SOLUTION: An electrophotographic photoreceptor includes a conductive substrate, and a photosensitive layer on the conductive substrate. The outermost surface layer of the photosensitive layer contains a fluoro-alkyl group-containing copolymer containing fluororesin particles and a repeating unit having a specific structure, and has the attenuation rate of resistance measured by the HEIDON resistance measurement method for 30 consecutive times of 55% or more and 70% or less.
摘要翻译：要解决的问题：获得具有优异细线再现性的图像。解决方案：电子照相感光体包括导电衬底和导电衬底上的感光层。感光层的最表面层含有含有氟代烷基的共聚物，含有氟树脂颗粒和具有特定结构的重复单元，并且通过HEIDON电阻测量方法测量的电阻衰减率连续30次为55％以上且70％以下。版权所有（C）2013，JPO＆INPIT

6. 发明专利

JP2011090214A Electrophotographic photoreceptor, method for producing electrophotographic photoreceptor, process cartridge, and image forming apparatus 有权
标题翻译：电子照相光电子产品，电子照相光刻胶的制造方法，工艺盒和图像形成装置
公开(公告)号：JP2011090214A
公开(公告)日：2011-05-06
申请号：JP2009244619
申请日：2009-10-23
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： ISHIKAWA ISAMU , KORENAGA JIRO , SUZUKI TAKAHIRO
IPC分类号： G03G5/147 , G03G5/00
摘要： PROBLEM TO BE SOLVED: To suppress generation of wood grain-like stripes on the surface of a photoreceptor, compared to the case that the variance of area ratios of fluorine-based resin particles expressed by formula (1) exceeds 10%.
SOLUTION: The electrophotographic photoreceptor includes a substrate and a photosensitive layer on the substrate, wherein the layer constituting the outermost surface contains fluorine-based resin particles and a dispersion assistant of the fluorine-based resin particles, and variance of area ratios of the fluorine-based resin particles expressed by formula (1): (variance of area ratio)=(maximum of particle area-average of particle area)/(maximum of particle area), when a cross section of the outermost surface layer is observed, is ≥0% and ≤10%.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：与式（1）表示的氟系树脂粒子的面积比的变化超过10％的情况相比，抑制感光体表面的木纹状条纹的产生。电子照相感光体在基板上具有基板和感光层，构成最表面的层含有氟系树脂粒子和氟系树脂粒子的分散助剂，当观察到最外表面层的横截面时，由式（1）表示的氟基树脂颗粒:(面积比的变化）=（粒子面积的最大值）/（最大颗粒面积）），≥0％，≤10％。版权所有（C）2011，JPO＆INPIT

7. 发明专利

JP2011064906A Electrophotographic photoreceptor and method for manufacturing the same, and process cartridge and image forming apparatus 有权
标题翻译：电子照相机及其制造方法及其制造方法及图像形成装置
公开(公告)号：JP2011064906A
公开(公告)日：2011-03-31
申请号：JP2009214846
申请日：2009-09-16
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： KORENAGA JIRO , BANDO KOJI , ISHIKAWA ISAMU
IPC分类号： G03G5/147 , G03G5/047
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor in which coarseness and denseness of fluorine-containing resin particles are suppressed compared to an electrophotographic photoreceptor where a photosensitive layer simply contains fluorine-containing resin particles and a fluorine-based grafted polymer. SOLUTION: The electrophotographic photoreceptor 1 includes a conductive support 2 and a photosensitive layer 3 disposed on the conductive support. The photosensitive layer contains fluorine-containing resin particles, a specified fluorinated alkyl group-containing methacrylic copolymer and a charge transporting material. When light of a wavelength of 300 nm or more and 1,000 nm or less is condensed and the surface of the photoreceptor is vertically scanned and irradiated with the condensed light in a region where a latent image is to be formed in the photosensitive layer, a value ΔI satisfies ΔI≥0.9, wherein ΔI is obtained by dividing the minimum value of intensity of scattered light when the light irradiating the photosensitive layer is scattered on the surface of the photosensitive layer by the maximum value of intensity of the scattered light. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种电子照相感光体，其中与感光层简单地含有含氟树脂颗粒和氟基接枝聚合物的电子照相感光体相比，可抑制含氟树脂颗粒的粗糙度和致密性。解决方案：电子照相感光体1包括导电支撑体2和设置在导电支撑体上的光敏层3。感光层含有含氟树脂颗粒，特定含氟烷基的甲基丙烯酸共聚物和电荷输送材料。当300nm以上且1000nm以下的波长的光被冷凝，感光体的表面在感光层中要形成潜像的区域中被垂直扫描并用聚光照射时， ΔI满足ΔI≥0.9，其中通过将照射感光层的光的散射光强度的最小值分散在感光层的表面上的散射光强度的最大值，将ΔI除以ΔI。版权所有（C）2011，JPO＆INPIT

8. 发明专利

JP2010197591A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2010197591A
公开(公告)日：2010-09-09
申请号：JP2009040871
申请日：2009-02-24
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： ISHIKAWA ISAMU , NUKADA HIDEMI , MIURA MASARU
IPC分类号： G03G5/147 , G03G5/05 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which includes an electrostatic latent image retaining body excellent in durability and suppresses the occurrence of ghost. SOLUTION: The electrostatic latent image retaining body has the surface layer which contains a fluorinated alkyl group-containing copolymer prepared by copolymerizing an acrylic acid (methacrylic acid) fluorinated alkyl ester and an acrylic acid (methacrylic acid) ester having ether group, alkyl group and carboxylic acid group, and a fluororesin particle. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像形成装置，其包括耐久性优异并且抑制重影的静电潜像保持体。解决方案：静电潜像保持体具有包含含丙烯酸（甲基丙烯酸）氟化烷基酯和具有醚基的丙烯酸（甲基丙烯酸）酯）共聚制备的含氟烷基共聚物的表面层，烷基和羧酸基，和氟树脂颗粒。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2011203693A Electrophotographic photoreceptor, process cartridge and image forming apparatus 有权
标题翻译：电子照相机，过程盒和图像形成装置
公开(公告)号：JP2011203693A
公开(公告)日：2011-10-13
申请号：JP2010073511
申请日：2010-03-26
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： ISHIKAWA ISAMU , SHOJI YOSHIFUMI
IPC分类号： G03G5/147 , G03G21/00 , G03G21/10
CPC分类号： G03G5/14726 , G03G5/14791 , G03G5/14795 , G03G15/75
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor suppressing generation of noise and degradation of image quality in terms of line reproducibility, which are caused by contact of a cleaning blade.SOLUTION: The electrophotographic photoreceptor includes a substrate and a photosensitive layer disposed on the substrate, wherein a surface layer contains fluorine-containing polymer particles and a dispersion aid for the fluorine-containing polymer particles, and the surface layer has convex portions with diameters of from 200 μm to 500 μm spaced at an average interval of from 600 μm to 950 μm. A specified acrylic acid-based copolymer compound is preferable for the dispersion aid.
摘要翻译：要解决的问题：提供一种电子照相感光体，其抑制由清洁刮板的接触引起的线重现性的噪声产生和图像质量的劣化。解决方案：电子照相感光体包括基板和设置在基板上的感光层基材，其中表面层含有含氟聚合物颗粒和用于含氟聚合物颗粒的分散助剂，并且表面层具有直径为200μm至500μm的凸起部分，其平均间隔为600μm至 950μm。对于分散助剂，优选指定的丙烯酸类共聚物化合物。

10. 发明专利

JP2013200418A Electrophotographic photoreceptor, process cartridge, and image forming apparatus 审中-公开
标题翻译：电子照相机，过程盒和图像形成装置
公开(公告)号：JP2013200418A
公开(公告)日：2013-10-03
申请号：JP2012068294
申请日：2012-03-23
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： ISHIKAWA ISAMU
IPC分类号： G03G5/147 , G03G21/18
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that has excellent image quality maintainability.SOLUTION: An electrophotographic photoreceptor includes a conductive substrate, and a photosensitive layer provided on the conductive substrate. The electrophotographic photoreceptor further includes a surface layer located on the surface on a side where the photosensitive layer is provided that contains fluorine resin particles, and a copolymer containing a specific fluoroalkyl group; the mass reduction rate when the surface layer is heated for 0.5 hours at 120°C is 1.5 mass% or more and 3.0 mass% or less; and the thickness of the surface layer is 26 μm or more and 50 μm or less.
摘要翻译：要解决的问题：提供具有优异的图像质量可维持性的电子照相感光体。解决方案：电子照相感光体包括导电基板和设置在导电基板上的感光层。电子照相感光体还包括位于设置有感光层的表面上的含有氟树脂颗粒的表面层和含有特定氟代烷基的共聚物; 当表面层在120℃下加热0.5小时时的质量减少率为1.5质量％以上至3.0质量％以下; 表面层的厚度为26μm以上且50μm以下。

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