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    • 2. 发明专利
    • Electrophotographic device
    • 电子照相设备
    • JP2011145598A
    • 2011-07-28
    • JP2010008049
    • 2010-01-18
    • Canon Incキヤノン株式会社
    • AMAMIYA SHOJIIKESUE TATSUYAMITSUI TAKAHIROOGAWA HIDENORISAITO YOSHIHISAOSHIRO MAYUMITANABE MIKIKOSAKA NOBUO
    • G03G21/10
    • PROBLEM TO BE SOLVED: To provide an electrophotographic device robust against deterioration in the sliding property of a photoreceptor surface occurring in use of a photoreceptor having a highly hard surface layer under a severe condition, a rise in photoreceptor driving torque due to increase in friction with a blade, warpage of a cleaning blade, and image defects such as image deletion.
      SOLUTION: In the electrophotographic device having an electrophotographic photoreceptor and a means supplying inorganic particles to the surface of the electrophotographic photoreceptor, the means supplying the inorganic particles is provided with an inorganic particle supplying device which characteristically includes a solid member made by compressing the inorganic particles and molding the compressed product, and a rotating brush shaving the solid member and supplying the inorganic particles to the electrophotographic photoreceptor surface, wherein the Young's modulus of bristles of the rotating brush is 3×10
      9 to 9×10
      9 (N/m
      2 ), and a volume mean diameter of the inorganic particles supplied to the surface of the electrophotographic photoreceptor is 0.05 to 3.0 (μm).
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供一种电子设备,其在恶劣条件下使用具有高硬度表面层的感光体发生的感光体表面的滑动性能的劣化,由于增加了感光体驱动力矩的增加 与刀片摩擦,清洁刀片翘曲,图像缺陷等图像缺陷。 解决方案:在具有电子照相感光体的电子照相装置和向电子照相感光体的表面供给无机颗粒的装置中,提供无机颗粒的装置设置有无机颗粒供给装置,其特征在于包括通过压缩制成的实心构件 无机颗粒和模制压缩产物,以及旋转的刷子剃刮实心构件并将无机颗粒供应到电子照相感光体表面,其中旋转刷的刷毛的杨氏模量为3×10 9 至9×10 9 (N / m 2 ),供给到电子照相感光体表面的无机粒子的体积平均直径为0.05〜3.0(μm) 。 版权所有(C)2011,JPO&INPIT
    • 3. 发明专利
    • Electrophotographic device
    • 电子照相设备
    • JP2008292572A
    • 2008-12-04
    • JP2007135587
    • 2007-05-22
    • Canon Incキヤノン株式会社
    • OGAWA HIDENORISAITO YOSHIHISAOSHIRO MAYUMITAKIZAWA KUMIKO
    • G03G5/147G03G21/10
    • PROBLEM TO BE SOLVED: To provide an electrophotographic device capable of achieving a long life of a photoreceptor that forms a black toner image, preventing image deletion in a high temperature and high humidity environment and giving favorable images for a long period of time.
      SOLUTION: The electrophotographic device is equipped with a plurality of image forming units, each including a photoreceptor, a charging means, an information writing means, a developing means, a transfer means and a control means for a developer charge amount, in which the developing means recovers a toner remaining on the photoreceptor after transferring and no cleaning means is provided between the transfer means and the charging means and between the charging means and the developing means. The surface layer of the photoreceptor that forms a black toner image contains a curable resin. A wear amount (A) in the film thickness of the surface layer and a wear amount (B) in the film thickness of the surface layer of a photoreceptor that forms a color toner image satisfies A Y, and X ranges from 0.3 μm to 1.3 μm.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了提供能够实现形成黑色调色剂图像的感光体的长寿命的电子照相装置,防止在高温高湿环境下的图像缺失并且长时间给出有利的图像 。 解决方案:电子照相装置配备有多个图像形成单元,每个图像形成单元包括感光体,充电装置,信息写入装置,显影装置,转印装置和用于显影剂充电量的控制装置, 显影装置在转印之后恢复残留在感光体上的调色剂,并且在转印装置和充电装置之间以及充电装置和显影装置之间没有设置清洁装置。 形成黑色调色剂图像的感光体的表面层含有可固化树脂。 形成彩色调色剂图像的感光体的表面层的膜厚中的表面层的膜厚度的磨损量(A)和磨损量(B)在相同数量的输出片材中满足A Y,X的范围为0.3μm至1.3μm。 版权所有(C)2009,JPO&INPIT
    • 4. 发明专利
    • Electrophotographic device
    • 电子照相设备
    • JP2008268433A
    • 2008-11-06
    • JP2007109468
    • 2007-04-18
    • Canon Incキヤノン株式会社
    • OSHIRO MAYUMIAMAMIYA SHOJIOGAWA HIDENORISAITO YOSHIHISAIKESUE TATSUYATAKIZAWA KUMIKOTANABE MIKIMITSUI TAKAHIRO
    • G03G5/047G03G9/08
    • PROBLEM TO BE SOLVED: To provide an electrophotographic device free from sticking or fixing between the surface of a charging member and the surface of a photoreceptor even when a charging member is left in press-contact with the photoreceptor in a high temperature and high humidity environment. SOLUTION: The electrophotographic device includes an electrophotographic photoreceptor, a charging means of a contact charging system, and a developing means having a toner containing a binder resin, a colorant and inorganic fine powder, and the device is characterized in that: the surface of the photoreceptor has a plurality of independent recessed portions; the minor diameter of the recessed portion is from 0.1 μm to 3.0 μm; the distance between wall faces of adjoining recessed portions is not more than 10 μm; the depth indicating a distance between the deepest point of the recessed portion and the opened face thereof is not less than 0.1 μm; the number of recessed portions is not less than 10 per a 100 μm square of the surface in contact with the charging member; the average particle diameter of primary particles of the inorganic fine powder is 30 nm to 500 nm and is smaller than the minor diameter; and the particle form is at least either a cube or a rectangular parallelepiped. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:即使当充电部件在高温下与感光体压接时,也可以提供一种在充电部件的表面和感光体表面之间不会粘附或固定的电子照相装置, 高湿度环境。 解决方案:电子照相装置包括电子照相感光体,接触充电系统的充电装置和具有含有粘合剂树脂,着色剂和无机细粉末的调色剂的显影装置,其特征在于: 感光体的表面具有多个独立的凹部; 凹部的小直径为0.1μm〜3.0μm; 相邻凹部的壁面之间的距离不大于10μm; 指示凹部的最深点与其开口面之间的距离的深度不小于0.1μm; 凹部的数量在与充电部件接触的面的100μm平方的面积上不小于10个; 无机细粉末的一次粒子的平均粒径为30nm〜500nm,小于小径; 并且颗粒形式至少是立方体或长方体。 版权所有(C)2009,JPO&INPIT
    • 5. 发明专利
    • Electrophotographic apparatus
    • 电子照相设备
    • JP2007065172A
    • 2007-03-15
    • JP2005249474
    • 2005-08-30
    • Canon Incキヤノン株式会社
    • OSHIRO MAYUMIOGAWA HIDENORISAITO YOSHIHISATAKIZAWA KUMIKO
    • G03G5/04G03G5/05G03G5/06G03G9/08G03G9/087G03G9/097
    • PROBLEM TO BE SOLVED: To provide an electrophotographic apparatus having excellent fixing performance and stable cleaning performance, satisfying both of mechanical strength such as scratch resistance and wear resistance and electrical characteristics of an electrophotographic photoreceptor, and excellent repetition stability. SOLUTION: The electrophotographic apparatus comprises the electrophotographic photoreceptor having a photosensitive layer on a support, a charging means, an exposure means, a developing means, a transfer means, a fixing means and a cleaning means, wherein the surface layer of the electrophotographic photoreceptor has a glass transition temperature of ≥130°C and the developing means has toner including at least a binder resin, a colorant and wax. Wax concentration of an extract obtained by dispersing the toner in n-hexane at 23°C in the concentration of 15 mg/cm 3 and carrying out extraction for 1 min is in a range of 0.080-0.500 mg/cm 3 . COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供具有优异的定影性能和稳定的清洁性能的电子照相设备,既满足诸如耐擦伤性和耐磨性的机械强度以及电子照相感光体的电特性,又具有优异的重复稳定性。 解决方案:电子照相设备包括在支撑体上具有感光层的电子照相感光体,充电装置,曝光装置,显影装置,转印装置,定影装置和清洁装置,其中, 电子照相感光体的玻璃化转变温度≥130℃,显影装置具有至少包含粘合剂树脂,着色剂和蜡的调色剂。 通过将调色剂在23℃下以15mg / cm 3的浓度分散在正己烷中并进行提取1分钟获得的提取物的蜡浓度在0.080-0.500mg /厘米 3 。 版权所有(C)2007,JPO&INPIT
    • 6. 发明专利
    • Image forming device
    • 图像形成装置
    • JP2005300743A
    • 2005-10-27
    • JP2004114219
    • 2004-04-08
    • Canon Incキヤノン株式会社
    • OSADA MIYAKOOSHIRO MAYUMIOGAWA HIDENORI
    • G03G9/10G03G5/047G03G15/16
    • PROBLEM TO BE SOLVED: To provide an image forming method and toner not degrading the toner image transfer efficiency to the recording medium and not damaging a photoreceptor when repeatedly using a 2 components developer, and to provide an electrophotographic photoreceptor.
      SOLUTION: The linear pressure of the contact charge transfer means to the image carrier is ≥30 g/cm but ≤500 g/cm in the state that a recording medium or an intermediate transfer means is placed in the transfer section. The developer is a 2 components developer having toner and a carrier, and the carrier contains fine carrier of ≤1/5 times as large as the average carrier by 5% in amount. Further, the image carrier has a photosensitive layer on the conductive substrate, and the elastic deformation workload We is 40-70% in a test which pushes it in 1 μm deep on the surface of the electrophotographic photoreceptor in a certain environment (22.5°C/50%RH).
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种图像形成方法和调色剂,其不会降低调色剂图像转印效率到记录介质,并且当重复使用2组分显影剂时不损害感光体,并提供电子照相感光体。 解决方案:在记录介质或中间转印装置放置在转印部分的状态下,接触电荷转移装置对图像载体的线性压力为≥30g/ cm 2,但≤500g/ cm 2。 显影剂是具有调色剂和载体的2组分显影剂,载体含有≤5%的平均载体的≤1/ 5倍的精细载体。 此外,图像载体在导电性基板上具有感光层,在一定环境(22.5℃)下,在电子照相感光体的表面上将其推入1μm深的试验中,弹性变形工作量为40〜70% / 50%RH)。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Electrophotographic photoreceptor, process cartridge and electrophotographic apparatus
    • 电子照相机,过程盒和电子照相设备
    • JP2005128398A
    • 2005-05-19
    • JP2003365937
    • 2003-10-27
    • Canon Incキヤノン株式会社
    • OSADA MIYAKOOGAWA HIDENORI
    • G03G5/047
    • PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor causing no ghost image and having high sensitivity, little changes in the characteristics for repeated use and high productivity, and to provide a process cartridge and an electrophotographic apparatus having the above electrophotographic photoreceptor.
      SOLUTION: In the electrophotographic photoreceptor having a charge generating layer and a charge transport layer on a supporting body, the charge generating layer contains a charge generating substance and a binder resin. The electrophotographic photoreceptor has optical anisotropy with respect to two directions: the rotation direction of the photoreceptor and a direction perpendicular to the rotation direction of the photoreceptor.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种不产生重影和高灵敏度的电子照相感光体,重复使用的特性几乎没有变化和高生产率,并且提供具有上述电子照相感光体的处理盒和电子照相设备。 解决方案:在具有电荷产生层和载体上的电荷输送层的电子照相感光体中,电荷产生层含有电荷产生物质和粘合剂树脂。 电子照相感光体相对于感光体的旋转方向和与感光体的旋转方向垂直的方向的两个方向具有光学各向异性。 版权所有(C)2005,JPO&NCIPI
    • 8. 发明专利
    • Electrophotographic apparatus
    • JP2004245946A
    • 2004-09-02
    • JP2003033817
    • 2003-02-12
    • Canon Incキヤノン株式会社
    • OSADA MIYAKOOGAWA HIDENORI
    • G03G5/05
    • PROBLEM TO BE SOLVED: To provide an electrophotographic apparatus which retains good properties, is excellent in durability even in repetitive use, keeps stable potential, and is free of occurrence of image defects such as a drum ghost even in the case of an electrophotographic apparatus not equipped with a charge eliminating device, by arbitrarily controlling physical properties in a photosensitive layer in an electrophotographic photoreceptor containing a polyarylate resin.
      SOLUTION: The electrophotographic apparatus in which electrostatic charge, exposure, development and transfer are performed and then next electrostatic charge is performed without disposing a charge eliminating device, is characterised in that an electrophotographic photoreceptor is an organic photoconductive photoreceptor obtained by disposing a photosensitive layer on a conductive support, the photosensitive layer contains a polyarylate resin, and a sulfur content of the photosensitive layer is 0.5-50 ppm by mass.
      COPYRIGHT: (C)2004,JPO&NCIPI
    • 9. 发明专利
    • Electrophotographic photoreceptor, process cartridge and electrophotographic device
    • 电子照相机,过程盒和电子照相设备
    • JP2014066789A
    • 2014-04-17
    • JP2012210599
    • 2012-09-25
    • Canon Incキヤノン株式会社
    • SAITO YOSHIHISATAKAHASHI KOJIUEMATSU HIRONORIMITSUI TAKAHIROKAWAI YASUHIRONISHIDA TAKESHIOGAWA HIDENORI
    • G03G5/00G03G5/047G03G5/147
    • PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor which hardly induces image deletion and disturbance in a toner image.SOLUTION: The electrophotographic photoreceptor includes a support body and a photosensitive layer formed on the support body. The surface of the electrophotographic photoreceptor is constituted by a plurality of recesses having a depth of 0.5 μm or more and 5 μm or less and a maximum diameter of 20 μm or more and 80 μm or less in the opening of the recess, and a part excluding the recesses. When a square region, 500 μm on a side, is disposed at any position of the surface of the electrophotographic photoreceptor, the total area of openings of the recesses in the square region, 500 μm on a side, is 10000 μmor more and 90000 μmor less, while the total area of flat portions included in the part excluding the recesses is 80000 μmor more and 240000 μmor less. The maximum inclination angle of the recesses along a circumference direction of the electrophotographic photoreceptor is larger than 0° and equal to or less than 60°.
    • 要解决的问题:提供几乎不引起图像缺失和调色剂图像干扰的电子照相感光体。解决方案:电子照相感光体包括支撑体和形成在支撑体上的感光层。 电子照相感光体的表面由凹部的开口部的深度为0.5μm以上且5μm以下,最大直径为20μm以上且80μm以下的多个凹部构成, 不包括凹槽。 当在电子照相感光体的表面的任何位置上设置一侧500μm的正方形区域时,正方形区域中的凹部的开口总面积为500μm,一侧为90000μm 而除了凹部以外的部分中的平坦部的总面积为80000μm以上且240000μm以下。 凹部沿着电子照相感光体的圆周方向的最大倾斜角大于0°且等于或小于60°。
    • 10. 发明专利
    • Method for forming uneven shape on surface of cylindrical electrophotographic photoreceptor, and method of manufacturing cylindrical electrophotographic photoreceptor having uneven shape on surface thereof
    • 用于在圆柱形电子照相机表面形成未形成形状的方法,以及在其表面上制造具有未形貌的圆柱形电子照相光电子的方法
    • JP2014059439A
    • 2014-04-03
    • JP2012204267
    • 2012-09-18
    • Canon Incキヤノン株式会社
    • KAWAI YASUHIROTAKAHASHI KOJIICHIHASHI NAOAKIOGAWA HIDENORI
    • G03G5/00
    • PROBLEM TO BE SOLVED: To provide a method of forming an uneven shape on a surface of a cylindrical electrophotographic photoreceptor, in which when forming an uneven shape on the surface of the cylindrical electrophotographic photoreceptor by mass production, a lead time is shortened, accuracy of processing various conditions are secured, and influence of minute foreign matter is small.SOLUTION: A method of forming uneven shapes on a surface of a cylindrical electrophotographic photoreceptor, includes at least: a step of washing a surface of a surface layer of a cylindrical electrophotographic photoreceptor; a step of adjusting to a prescribed temperature; a step of adjusting an insertion member to be inserted into the cylindrical electrophotographic photoreceptor to a prescribed temperature; a step of inserting the insertion member; a step of bringing, while maintaining a prescribed temperature, a mold member having a surface shape corresponding to an uneven shape on a surface thereof into contact with a surface of a surface layer of the cylindrical electrophotographic photoreceptor so as to transfer the surface shape on the surface of the mold member to a surface of the surface layer of the cylindrical electrophotographic photoreceptor; a step of taking the insertion member out of the cylindrical electrophotographic photoreceptor; and a step of lowering the temperature of the taken-out insertion member to a prescribed temperature.
    • 要解决的问题:提供一种在圆柱形电子照相感光体的表面上形成不均匀形状的方法,其中当通过批量生产在圆柱形电子照相感光体的表面上形成不均匀形状时,缩短了前置时间, 确保处理各种条件,并且微小异物的影响小。解决方案:在圆柱形电子照相感光体的表面上形成不均匀形状的方法至少包括:清洗圆柱形电子照相感光体的表面层的表面的步骤 感光器; 调整到规定温度的步骤; 将插入到所述圆筒状电子照相感光体中的插入部件调整为规定温度的步骤; 插入插入件的步骤; 在保持规定温度的同时,将具有与其表面上的不均匀形状对应的表面形状的模具构件与圆筒形电子照相感光体的表面层的表面接触以将表面形状转印到 模具构件的表面到圆筒形电子照相感光体的表面层的表面; 将插入构件从圆柱形电子照相感光体中取出的步骤; 以及将取出插入部件的温度降低到规定温度的步骤。