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1. 发明专利

JP2009276470A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2009276470A
公开(公告)日：2009-11-26
申请号：JP2008126347
申请日：2008-05-13
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： BANDO KOJI , SUZUKI TAKAHIRO , ASAHI TORU , AIDA MICHIKO
IPC分类号： G03G15/02 , G03G5/14 , G03G5/147
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus, capable sufficiently suppressing ghost images, cleaning failure and production of black spots and forming preferable images over a long period of time. SOLUTION: The image forming apparatus is equipped with an electrophotographic photoreceptor 1, which has a base coat layer, formed on a conductive support and has a photosensitive layer formed on the base coat layer, wherein the base coat layer contains a conductive metal oxide having an average particle diameter of not more than 500 nm and an acceptor compound. The apparatus is also equipped with a control means for controlling an auxiliary charging device 16, that charges the electrophotographic photoreceptor 1 after a toner image is transferred, in such a manner that the potential Vpcc (V) of the electrophotographic photoreceptor 1, charged by the auxiliary charging device 16, satisfies the conditional expression (A): -1,500 [V]≤Vpcc≤(1.25×PS-800) [V]. In the expression (A), PS represents the process speed (mm/sec) of the image forming apparatus and is in a range of 40 (mm/sec) to 360 (mm/sec). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够充分抑制重影，清洁失败和黑点的产生并且在长时间内形成优选图像的图像形成装置。解决方案：图像形成装置配备有形成在导电性支持体上的基底涂层的电子照相感光体1，在基底涂层上形成有感光层，其中，底涂层含有导电性金属平均粒径不大于500nm的氧化物和受体化合物。该装置还配备有用于控制辅助充电装置16的控制装置，该辅助充电装置16以调色剂图像转印后对电子照相感光体1进行充电，使得电子照相感光体1的电位Vpcc（V）由辅助充电装置16满足条件式（A）：-1,500 [V]≤Vpcc≤（1.25×PS-800）[V]。在（A）式中，PS表示图像形成装置的处理速度（mm / sec），在40（mm / sec）〜360（mm / sec）的范围内。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2008191338A Image holding member, process cartridge and image forming apparatus 有权
标题翻译：图像保存成员，处理盒和图像形成装置
公开(公告)号：JP2008191338A
公开(公告)日：2008-08-21
申请号：JP2007024610
申请日：2007-02-02
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： TAKIMOTO HITOSHI , IDE KENTA , ASAHI TORU , NUKADA HIDEMI , SUZUKI TAKAHIRO , BANDO KOJI
IPC分类号： G03G5/05 , G03G5/147
CPC分类号： G03G5/14704 , G03G5/051 , G03G5/0539 , G03G5/0592 , G03G5/0596 , G03G5/14726 , G03G5/14795 , G03G2215/00957 , G03G2221/183
摘要： PROBLEM TO BE SOLVED: To provide an image holding member having stable charging property, and a process cartridge and an image forming apparatus with such an image holding member for performing good image formation.
SOLUTION: The image holding member includes a conductive substrate and a photosensitive layer disposed on the substrate, wherein the photosensitive layer has an outermost surface layer containing particles of which the sphericity defined by the formula (1): sphericity=4πA/L
2 is ≤0.7 on a particle number average, wherein π represents pi; A represents a projected area of a particle; and L represents a boundary length of the projected area of the particle.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供具有稳定充电特性的图像保持构件，以及具有用于进行良好图像形成的具有这种图像保持构件的处理盒和图像形成装置。解决方案：图像保持部件包括导电基板和设置在基板上的感光层，其中感光层具有包含由式（1）定义的球形度的颗粒的最外表面层：球形度=4πA/ L 颗粒数平均值 2 ≤0.7，其中π表示pi; A表示颗粒的投影面积; L表示颗粒的投影面积的边界长度。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2008076656A 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：JP2008076656A
公开(公告)日：2008-04-03
申请号：JP2006254760
申请日：2006-09-20
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： TADA KAZUYUKI , AZUMA MASARU , INAGAKI TOMOTAKE , SATO TOMOMASA , ASAHI TORU , MORITA NAOKI , IKEDA KENJI
IPC分类号： G03G5/047 , G03G5/05
CPC分类号： G03G17/04 , G03G17/06
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor that suppresses generation of unevenness in image density and a method for manufacturing the photoreceptor, and to provide a process cartridge that suppresses generation of unevenness in image density, and an image forming apparatus. SOLUTION: The electrophotographic photoreceptor has a cylindrical support body, and a charge generating layer and a charge transporting layer formed on the cylindrical support body, wherein the film thickness of the charge generating layer continuously increases from a center part in the axial direction of the cylindrical support body to the both ends, and that the difference in the film thickness between both ends of the charge generating layer is 2.5% or less of the average film thickness. The present invention also provides a method for manufacturing the electrophotographic photoreceptor, and a process cartridge and an image forming apparatus equipped with the photoreceptor. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供抑制图像浓度不均匀性的电子照相感光体，以及制造感光体的方法，以及提供抑制图像浓度不均匀的产生的处理盒和图像形成装置。解决方案：电子照相感光体具有圆柱形的支撑体，形成在圆柱形支撑体上的电荷产生层和电荷输送层，其中电荷产生层的膜厚从轴向的中心部分连续增加并且电荷产生层的两端之间的膜厚度的差异是平均膜厚度的2.5％以下。本发明还提供一种用于制造电子照相感光体的方法，以及配备有感光体的处理盒和图像形成装置。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2004246183A Electrophotographic photoreceptor with bearing, process cartridge and image forming apparatus 审中-公开
公开(公告)号：JP2004246183A
公开(公告)日：2004-09-02
申请号：JP2003037091
申请日：2003-02-14
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： SHIBATA JUNICHI , ASAHI TORU , KUSAYANAGI MAKOTO
IPC分类号： G03G21/00 , F16C33/78 , G03G5/00
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor with a bearing capable of satisfactorily preventing the lowering of image quality and to provide a process cartridge and an image forming apparatus. SOLUTION: In the electrophotographic photoreceptor 1 with a bearing provided with an electrophotographic photoreceptor 2 having a cylindrical substrate 3 and a photosensitive layer 4 disposed on the substrate 3, and at least one bearing 5 which supports the photoreceptor 2 in a rotatable state, an intercepting member 10 is disposed which intercepts a lubricant flowing from the bearing 5 into a region 4a contributing to image formation on the surface of the photosensitive layer 4. In the case where a lubricant is enclosed in the bearing 5, even if the lubricant liquifies at high temperature and leaks out of the bearing 5, the lubricant flowing from the bearing 5 into the region 4a contributing to image formation is intercepted by the intercepting member 10, whereby contamination of the region 4a by the lubricant is prevented. COPYRIGHT: (C)2004,JPO&NCIPI

5. 发明专利

JP2006091562A Slide contact member and photoreceptor drum having the same in its inside, and drum cartridge for electrophotography provided with photoreceptor drum and image forming apparatus 审中-公开
标题翻译：滑动接触部件和其内部具有相同功能的光电鼓，以及用光电驱动器和图像形成装置提供的电泳图像的鼓盒
公开(公告)号：JP2006091562A
公开(公告)日：2006-04-06
申请号：JP2004278196
申请日：2004-09-24
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： MIYAZAWA YASUAKI , ASAHI TORU , TAKIMOTO HITOSHI , SHIBATA JUNICHI , MIURA MASARU , TAKAHASHI KOKI
IPC分类号： G03G21/00 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide a slide contact member capable of permanently suppressing electric charge sounds which occur when directly bringing a contact charging member into contact with a photoreceptor drum and applying an AC voltage to charge the photoreceptor drum, even in a high-temperature environment, a photoreceptor drum having the slide contact member in its inside, a drum cartridge for electrophotography provided with the photoreceptor drum, and an image forming apparatus. SOLUTION: The slide contact member is provided in the photoreceptor drum provided in the image forming apparatus including a charging device which is brought into contact with the photoreceptor drum to charge the photoreceptor drum and has a cylindrical shape having a slit and a constricted part formed extending in a longitudinal direction of the photoreceptor drum, and has a shape memory metal having a transformation temperature of 15 to 45°C installed in the constricted part. The photoreceptor drum has the slide member in its inside. The drum cartridge for the electrophotography and the image forming apparatus are provided with the photoreceptor drum. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够永久地抑制当直接使接触充电构件与感光鼓接触并且施加AC电压以对感光鼓进行充电时发生的电荷声音的滑动接触构件，即使在高温环境，其内部具有滑动接触构件的感光鼓，设置有感光鼓的电子照相用鼓盒和图像形成装置。解决方案：滑动接触构件设置在设置在图像形成装置中的感光体鼓中，该感光鼓包括与感光鼓接触的充电装置，以对感光鼓进行充电，并且具有狭缝和狭窄的圆柱形形成在感光鼓的纵向延伸的部分，并且具有安装在收缩部分中的具有15至45℃的相变温度的形状记忆金属。感光鼓在其内部具有滑动构件。用于电子照相的感光鼓和图像形成装置设置有感光鼓。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005227727A Electrophotographic photoreceptor, electrophotographic apparatus and process cartridge 审中-公开
标题翻译：电子照相机，电子照相设备和工艺盒
公开(公告)号：JP2005227727A
公开(公告)日：2005-08-25
申请号：JP2004038958
申请日：2004-02-16
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： TAKIMOTO HITOSHI , ASAHI TORU , KUSAYANAGI MAKOTO , MIURA MASARU , HOZUMI MASAHIKO , TAKAHASHI KOKI , HORII NORITAKA , YAHAGI KOICHI , NAKAMURA KAZUYUKI
IPC分类号： G03G5/05 , G03G5/147
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor excellent in mechanical strength and cleanability, capable of suppressing a rise of residual potential in repetitive use, and capable of stably obtaining high-level image quality over a prolonged period of time even when a spherical toner is used, and to provide an electrophotographic apparatus and a process cartridge using the electrophotographic photoreceptor.
SOLUTION: In the photoreceptor 1 comprising an electrically conductive substrate 2 and a photosensitive layer 3 disposed on the substrate 2, a functional layer 6 comprising fluorocarbon resin particles having an apparent density of ≤0.35 g/ml, a fluorinated graft polymer and a binder resin is disposed in a position of the photosensitive layer 3 farthest from the electrically conductive substrate.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：为了提供机械强度和清洁性优异的电子照相感光体，能够抑制重复使用时的残留电位的上升，并且能够长时间稳定地获得高水平的图像质量，即使当使用球形调色剂，并提供使用电子照相感光体的电子照相设备和处理盒。解决方案：在包含导电基底2和设置在基底2上的感光层3的感光体1中，包含表观密度≤0.35g/ ml的氟碳树脂颗粒的功能层6，氟化接枝聚合物和粘合剂树脂设置在距离导电基板最远的感光层3的位置。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2004233563A Image forming apparatus and process cartridge 审中-公开
公开(公告)号：JP2004233563A
公开(公告)日：2004-08-19
申请号：JP2003020835
申请日：2003-01-29
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： YAHAGI KOICHI , TAKIMOTO HITOSHI , ESUMI TETSUYA , NAKAMURA KAZUYUKI , NAKAMURA MITSUHIDE , ASAHI TORU , KUSAYANAGI MAKOTO
IPC分类号： G03G21/00 , G03G5/04 , G03G5/14 , G03G15/02 , G03G15/16 , G03G21/18
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus and a process cartridge, which can form a color image having proper image quality at a high speed, in which the occurrence of pinhole leakage in a photoreceptor is sufficiently prevented, even when repeatedly used for a long period of time. SOLUTION: The image forming apparatus 200 includes an image forming unit, having at least the electrophotographic photoreceptors 401a-401d, charging means 402a-402d, an exposure means 403, and development means 404a-404d, and a transfer means 409. The image forming apparatus 200 has the configuration, in which two or more mage forming units are provided, the thickness of a photosensitive layer in the electrophotographic photoreceptors 401a-401d is 30-45 μm, the thickness of an undercoat layer is 20-40 μm, the total sum of the thicknesses of respective layers formed on a conductive support layer is 50-90 μm, the electrification means 402a-402d are contact electrification devices, and the transfer means 40 adopts an intermediate transfer system. COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2007322996A 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：JP2007322996A
公开(公告)日：2007-12-13
申请号：JP2006156098
申请日：2006-06-05
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： SUZUKI TAKAHIRO , BANDO KOJI , HASHIBA SHIGETO , NUKADA HIDEMI , ASAHI TORU , NISHIMURA AKIRA , IDE KENTA
IPC分类号： G03G5/14 , G03G5/047
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor capable of suppressing occurrence of a ghost, black spots and density unevenness and improving cycling characteristics of residual potential, a process cartridge and an image forming apparatus. SOLUTION: The electrophotographic photoreceptor 100 comprises a conductive support 3, an undercoat layer 4 disposed on the conductive support 3 and containing conductive metal oxide particles surface-treated with a silane coupling agent, an electron-accepting material, a binder resin and a curing agent, a charge generating layer 1 disposed on the undercoat layer 4, and a charge transport layer 2 disposed on the charge generating layer 1. When the thickness of the undercoat layer 4 is 20 μm, transmittance of the underlayer 4 to light of 950 nm wavelength is ≥85%. The undercoat layer 4 has a volume resistivity of 1×10 10 to 1×10 12 Ω cm. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够抑制重影，黑点和浓度不均匀的发生以及改善残留电位的循环特性的电子照相感光体，处理盒和图像形成装置。电子照相感光体100包括导电性支持体3，配置在导电性支持体3上的底涂层4，含有用硅烷偶联剂，电子接受性材料，粘合剂树脂表面处理的导电性金属氧化物粒子，固化剂，设置在底涂层4上的电荷产生层1和设置在电荷产生层1上的电荷输送层2.当底涂层4的厚度为20μm时，底层4的透光率为 950nm波长≥85％。底涂层4的体积电阻率为1×10 10 至1×10 SP 12Ω/ cm。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2005115098A Electrophotographic photoreceptor, electrophotographic apparatus, and process cartridge 审中-公开
标题翻译：电子照相机，电子照相设备和工艺盒
公开(公告)号：JP2005115098A
公开(公告)日：2005-04-28
申请号：JP2003350087
申请日：2003-10-08
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： HOZUMI MASAHIKO , TAKIMOTO HITOSHI , ASAHI TORU , KUSAYANAGI MAKOTO , ESUMI TETSUYA , NAKAMURA KAZUYUKI , TAKAHASHI KOKI
IPC分类号： G03G5/06 , G03G5/05
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which has excellent durability, toner release property and cleanability and can sufficiently suppress the rise of a residual potential due to repeated use.
SOLUTION: An electrophotographic photoreceptor 1 has a conductive support 2 and a photosensitive layer 3 arranged on the conductive support 2. The photosensitive layer 3 contains one or ≥2 charge generating materials, one or ≥2 charge transfer materials, fluorine-base resin particles and fluorine-base graft polymer and is so constituted that the mass ratio X of the charge transfer material having the ionization potential smaller than that of the charge generating material having the smallest ionization potential among the charge generating materials to the total amount of the charge transfer materials and the mass ratio Y of the fluorine-base graft polymer to the fluorine-base resin particles satisfy the conditions expressed by the following equation (1), 0.5≤Y≤(0.02×X)+1.5.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种电子照相感光体，其具有优异的耐久性，调色剂释放性和清洁性，并且可以充分抑制由于重复使用而导致的残留电位的上升。电子照相感光体1具有配置在导电性支持体2上的导电性支持体2和感光层3.感光层3含有1个或2个以上的电荷产生材料，1个或2个以上的电荷转移材料，氟基树脂颗粒和氟基接枝聚合物，其电离转移材料的质量比X比电荷产生材料中电离电位最小的电荷产生材料的质子比X小于电荷转移材料和氟基接枝聚合物与氟基树脂颗粒的质量比Y满足下式（1）表示的条件：0.5≤Y≤（0.02×X）+1.5。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2007298909A Method for manufacturing electrophotographic photoreceptor with flange, electrophotographic photoreceptor with flange, cylindrical conductive substrate, flange for electrophotographic photoreceptor, process cartridge and image forming apparatus 审中-公开
标题翻译：用法兰制作电子照相光电元件的方法，带法兰的电子照相光电元件，导电基片，电子照相光电子法兰，工艺盒和图像形成装置
公开(公告)号：JP2007298909A
公开(公告)日：2007-11-15
申请号：JP2006128923
申请日：2006-05-08
申请人： Fuji Xerox Co Ltd , 富士ゼロックス株式会社
发明人： ASAHI TORU , SHIBATA JUNICHI , YAHAGI KOICHI
IPC分类号： G03G21/16 , G03G5/10 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To prevent deformation of a cylindrical conductive substrate when an insulating flange with a metal earth plate is inserted into the substrate, to ensure conduction stability, and to avoid an error in insertion. SOLUTION: In a method for manufacturing an electrophotographic photoreceptor with a flange by fastening and pressing an insulating flange on which a metal earth plate has been fixed and mounted into an end of a cylindrical conductive substrate having a photosensitive layer formed on an outer surface thereof so that the metal earth plate is brought into contact with an inner surface of the cylindrical conductive substrate, the metal earth plate is inserted into the cylindrical conductive substrate from an end thereof while reducing the maximum opening width (A) of a contact portion of the metal earth plate which is larger than the inside diameter (D) of the cylindrical conductive substrate. A method for manufacturing an electrophotographic photoreceptor with a flange having stable quality can be provided by which deformation of a cylindrical conductive substrate is prevented when an insulating flange with a metal earth plate is inserted into the substrate, conduction stability is ensured, and an error in insertion can be avoided. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止当具有金属接地板的绝缘凸缘插入到基板中时圆柱形导电基板的变形，以确保导电稳定性，并且避免插入错误。解决方案：在通过紧固和压制其上固定有金属接地板的绝缘凸缘并且安装到具有形成在外部的感光层的圆柱形导电基底的端部中的用于制造具有凸缘的电子照相感光体的方法中使金属接地板与圆筒形导电性基板的内表面接触，金属接地板从端部插入圆筒形导电性基板，同时减小接触部的最大开口宽度（A）大于圆柱形导电基底的内径（D）的金属接地板。可以提供一种制造具有质量稳定的凸缘的电子照相感光体的方法，当将具有金属接地板的绝缘凸缘插入到基板中时，可以防止圆柱形导电基板的变形，确保导电稳定性和错误可以避免插入。版权所有（C）2008，JPO＆INPIT

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