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1. 发明专利

JP2007225794A Method for manufacturing electrophotographic photoreceptor, holding fixture, electrophotographic photoreceptor and image forming apparatus 审中-公开
标题翻译：制造电子照相机，保持装置，电子照相机和图像形成装置的方法
公开(公告)号：JP2007225794A
公开(公告)日：2007-09-06
申请号：JP2006045531
申请日：2006-02-22
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANIGUCHI KIYOSHI , KIYOHARA TAKAHITO
IPC分类号： G03G5/05
摘要： PROBLEM TO BE SOLVED: To provide a method capable of manufacturing an electrophotographic photoreceptor having uniform film thickness by using a holding fixture which can satisfactorily hold an endless belt base substance and the holding fixture with satisfactory adhesion and facilitates attachment and detachment of the endless belt base substance to and from the holding fixture.
SOLUTION: In the method for manufacturing the electrophotographic photoreceptor comprising holding the endless belt base substance with the cylindrical holding fixture from the inner side and subjecting the external surface of the endless belt base substance to spray application, the cylindrical holding fixture mounts endless belt base substance 7 from at least one end divided by at least one notch or clearance in an axial direction, then resets the same to the original position, thereby holding the endless belt base substance 7.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：解决的问题：为了提供一种能够制造具有均匀膜厚度的电子照相感光体的方法，通过使用能够令人满意地保持环形带基底物质和保持固定装置的保持夹具具有令人满意的粘合性，并且便于安装和拆卸环形皮带基底物质从夹具固定。解决方案：在用于制造电子照相感光体的方法中，包括从内侧保持环形带基底物料与圆筒形保持固定件，并且使环形带基材的外表面喷涂，圆柱形固定夹具安装无止境带状基材7从至少一端在轴向方向上划分为至少一个切口或间隙，然后将其重新设置到原始位置，从而保持环形带基材7。版权所有（C）2007， JPO＆INPIT

2. 发明专利

JP2007086351A Electrophotographic photoreceptor, electrophotographic apparatus and process cartridge for electrophotographic apparatus 有权
标题翻译：电子显微照相机，电子显微照相设备和电子显示设备的工艺盒
公开(公告)号：JP2007086351A
公开(公告)日：2007-04-05
申请号：JP2005274422
申请日：2005-09-21
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANIGUCHI KIYOSHI , KIYOHARA TAKAHITO
IPC分类号： G03G5/05 , G03G5/06 , G03G5/14
CPC分类号： G03G5/0696 , G03G5/0567 , G03G5/0679
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor having high sensitivity and excellent potential stability, capable of setting potential particularly after exposure to a low value, ensuring a wide sensitivity selection range, and having high durability and high reliability, and an electrophotographic apparatus and a process cartridge equipped with the electrophotographic photoreceptor.
SOLUTION: The electrophotographic photoreceptor used in a digital electrophotographic apparatus in which image exposure is performed with a single-wavelength light source has a photosensitive layer comprising a charge generating layer, a charge transport layer and an intermediate layer, contains a phthalocyanine pigment and an asymmetric azo pigment represented by formula (I) in the charge generating layer, and contains a polyalkylene glycol, polyalkylene glycol ether, a polyalkylene glycol ester or a crown ether in one layer in the photosensitive layer.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有高灵敏度和优异的电位稳定性的电子照相感光体，其能够特别在暴露于低值之后设定电位，确保宽的灵敏度选择范围，并且具有高耐久性和高可靠性，并且电子照相设备和配备有电子照相感光体的处理盒。解决方案：在用单波长光源进行图像曝光的数字电子照相设备中使用的电子照相感光体具有包含电荷产生层，电荷传输层和中间层的感光层，其含有酞菁颜料和在电荷产生层中由式（I）表示的不对称偶氮颜料，并且在感光层中的一层中含有聚亚烷基二醇，聚亚烷基二醇醚，聚亚烷基二醇酯或冠醚。版权所有（C）2007，JPO＆INPIT

3. 发明专利

JP2006003751A Manufacturing method of electrophotographic photoreceptor belt 有权
标题翻译：电子照相胶带的制造方法
公开(公告)号：JP2006003751A
公开(公告)日：2006-01-05
申请号：JP2004181759
申请日：2004-06-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAZAKI JUNICHI , TANIGUCHI KIYOSHI , KIYOHARA TAKAHITO
IPC分类号： G03G5/00 , G03G5/05 , G03G5/10
摘要： PROBLEM TO BE SOLVED: To form an electrophotographic photoreceptor whose size accuracy is extremely high, by adjusting the moisture of the coated object without occupying a wide area even if the coated object is 2m or longer, the coated object is prepared in such a method that a coating liquid having an organic dissolvent as a solvent is applied to a plastic film whose surface has been subjected to a conductive processing, thus coated plastic film is dried at a temperature 110°C or above for 10 or more minutes to form an electrophotographic photoreceptor layer.
SOLUTION: In an electrophotographic photoreceptor sheet manufacturing method, the coating liquid comprising the organic dissolvent as the solvent is applied one or more times to the plastic film with thickness in the range of 50μm to 150μm whose surface has been subjected to the conductive process by aluminum evaporation or ITO evaporation. The coated plastic film is dried at a temperature of 110°C or above for 10 or more minutes, and the electrophotographic photosensitive layer with a film thickness of 15μm or more is formed. The electrophotographic photoreceptor layer is once cut into sheets with a length longer than the final length. The electrophotographic photoreceptor sheets obtained by cutting the electrophotographic photoreceptor layer and sheets of paper with the same size as the electrophotographic photoreceptor sheets and with thickness in the range of 20μm to 200μm made of cellulose fiber are alternately superimposed one with the other, and they are left for nine or more hours. Thereafter, the electrophotographic photoreceptor sheets thus obtained are cut to have the final length.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了形成尺寸精度非常高的电子照相感光体，即使涂覆物体为2μm以上，通过调节涂覆物体的水分而不占据广泛的面积，涂布物体如此制备将具有有机溶剂作为溶剂的涂布液施加到表面经过导电处理的塑料膜的方法，将涂布的塑料膜在110℃以上的温度下干燥10分钟以上以形成电子照相感光体层。解决方案：在电子照相感光体片的制造方法中，将包含作为溶剂的有机溶剂的涂布液一次或多次施加到厚度在50μm至150μm范围内的塑料膜，其表面已经经过导电铝蒸发或ITO蒸发的过程。将涂布的塑料膜在110℃以上的温度下干燥10分钟以上，形成膜厚15μm以上的电子照相感光层。电子照相感光体层一次被切割成具有长于最终长度的长度的片材。通过切割电子照相感光体层和与电子照相感光体片相同的厚度在纤维素纤维制成的20μm至200μm范围内的纸张而获得的电子照相感光体片材彼此交替地重叠，并且它们被遗留九个或更多小时。此后，将如此获得的电子照相感光体片切割成具有最终长度。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2003330207A Method for manufacturing endless belt type electrophotographic photoreceptor by ultrasonic joining, endless belt type electrophotographic photoreceptor, image forming apparatus, and process cartridge for image forming apparatus 有权
标题翻译：通过超声波加工制造无端带式电子照相机的方法，无端带式电子照相机，图像形成装置和图像形成装置的处理盒
公开(公告)号：JP2003330207A
公开(公告)日：2003-11-19
申请号：JP2002134400
申请日：2002-05-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAZAKI JUNICHI , NAKATAKE NAOKI , TANIGUCHI KIYOSHI , KIYOHARA TAKAHITO
IPC分类号： G03G21/00 , G03G5/00 , G03G5/10
摘要： PROBLEM TO BE SOLVED: To provide an endless belt type electrophotographic photoreceptor of high joining strength and high joining quality constituted by joining both end part of a sheet-like electrophotographic photoreceptor. SOLUTION: In the method for manufacturing the endless belt type electrophotographic photoreceptor by cutting the electrophotographic photoreceptor sheet constituted by forming a photoreceptive layer on a plastic film on which a conductive processing is applied, and overlapping the cut ends on top of each other and ultrasonically joining them, the ultrasonic joining is performed in a state where the rear side of the cut end lower-positioned in the overlapped state has a burr-like projecting part. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种通过接合片状电子照相感光体的两个端部而构成的具有高接合强度和高接合质量的环形带式电子照相感光体。解决方案：在通过在施加导电处理的塑料膜上形成感光层而构成的电子照相感光体片，并且将切割端重叠在彼此之上的环形带式电子照相感光体的制造方法中并且超声波接合时，在重叠状态下方的切断端的后侧具有毛刺状的突出部的状态下进行超声波接合。版权所有（C）2004，JPO

5. 发明专利

JP2006195041A Electrophotographic sensitive body, electrophotographic cartridge and image forming device 有权
标题翻译：电子感应敏感体，电子显微镜和图像形成装置
公开(公告)号：JP2006195041A
公开(公告)日：2006-07-27
申请号：JP2005004933
申请日：2005-01-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KIYOHARA TAKAHITO , TANIGUCHI KIYOSHI
IPC分类号： G03G5/14 , G03G15/00 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic sensitive body where the regular reflectance of the sensitive body is made into a reflection density required for performing density control with high precision, thus the calibration of a density detecting means can be correctly performed, and an image with a proper density can be stably output. SOLUTION: In the image forming device where, to an electrophotographic sensitive body 4 obtained by stacking the surface of an electrically conductive support 8: with an under coating layer 7 at least composed of a binding resin and white pigment; a charge generating layer 6; and a charge transporting layer 5 in succession, a density detecting means of performing density detection by density image forming light having the wavelength of 800 to 900 nm at an incident angle of 5° on the surface of the sensitive body is provided, to the density image forming light having the wavelength in the region of 800 to 900 nm at an incident angle of 5° on the surface of the sensitive body, the regular reflectance of the electrophotographic sensitive body is 5 to 10%. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种将敏感体的规则反射率以高精度进行浓度控制所需的反射浓度的电子照相感光体，因此可以正确地进行浓度检测装置的校准，并且可以稳定地输出具有适当密度的图像。解决方案：在图像形成装置中，对于通过将至少由粘合树脂和白色颜料组成的底涂层7叠置在导电性支撑体8的表面上而获得的电子照相感光体4; 电荷产生层6; 电荷传输层5，密度检测装置，以敏感体的表面上的入射角为5°的波长为800〜900nm的密度成像光进行密度检测，密度为在敏感体的表面上以5°的入射角度具有800-900nm的波长的成像光，电子照相感光体的正反射率为5〜10％。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2004361663A Electrostatic charge image developing toner, method for manufacturing the same, toner container, process cartridge, image forming apparatus loaded with those, and image forming method using the toner 审中-公开
标题翻译：静电充电图像显影调色剂，其制造方法，调色剂容器，方法盒，装载有图像的装置以及使用色调剂的图像形成方法
公开(公告)号：JP2004361663A
公开(公告)日：2004-12-24
申请号：JP2003159981
申请日：2003-06-04
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NATORI YUJI , TOSAKA HACHIRO , ITO TOMIAKI , KIYOHARA TAKAHITO
IPC分类号： G03G9/08 , G03G9/087 , G03G9/09
摘要： PROBLEM TO BE SOLVED: To provide an electrostatic charge image developing toner of pure black comparable to a carbon-black-containing toner, using an inorganic black pigment harmless to the human body and environment, having good charge buildup performance, excellent in charge stability even in continuous use, realizing the reduction of environmental load cost and toner cost, and realizing formation of an image of high image quality free from surface stain, and to provide a method for manufacturing the toner, a toner container filled with the toner, a process cartridge in which the toner is held, an image forming apparatus loaded with the toner container or process cartridge, and an image forming method using the toner. SOLUTION: This electrostatic charge image developing toner contains at least a binder resin and a black metal oxide as a colorant and is composed of powder obtained by pulverizing/classifying a kneaded material which contains at least a binder resin and a black metal oxide as a colorant and is prepared by incorporating calcium carbonate in melt kneading. Additionally, by an electrostatic charge image developing toner which is powder obtained by pulverizing/classifying a kneaded material prepared by incorporating calcium carbonate in melt kneading, a toner having good charge stability, excellent in durability and having always stable chargeability even in long-term continuous use can be obtained. Since environmental load cost and simplex toner cost can be reduced and charge buildup performance is good, a stable image free of surface stain can be obtained from an early stage. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种与含炭黑调色剂相当的纯黑色静电荷图像显影调色剂，使用对人体和环境无害的无机黑色颜料，具有良好的电荷累积性能，优异的充电稳定性即使在连续使用中，实现了环境负荷成本和调色剂成本的降低，并且实现了没有表面污渍的高图像质量的图像的形成，并且提供了一种制造调色剂的方法，填充有调色剂的调色剂容器，其中保持调色剂的处理盒，装载有调色剂容器或处理盒的图像形成装置以及使用调色剂的图像形成方法。解决方案：该静电荷成像显影调色剂至少含有粘合剂树脂和黑色金属氧化物作为着色剂，并且由通过粉碎/分级至少含有粘合剂树脂和黑色金属氧化物的捏合材料得到的粉末作为着色剂，并通过在熔融捏合中加入碳酸钙来制备。此外，通过静电荷图像显影调色剂，其是通过将通过在熔融捏合中引入碳酸钙而制备的捏合材料进行粉碎/分级获得的粉末，即使在长期连续的情况下也具有良好的电荷稳定性，耐久性优异并且始终具有稳定的带电性的调色剂可以使用。由于可以降低环境负担成本和单色墨粉成本，并且电荷累积性能良好，因此可以从早期获得不含表面污渍的稳定图像。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2003335387A Package and packaging method 审中-公开
标题翻译：包装和包装方法
公开(公告)号：JP2003335387A
公开(公告)日：2003-11-25
申请号：JP2002354349
申请日：2002-12-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAZAKI JUNICHI , KUSANO TETSUYA , IMARUOKA MIZUHO , HASEGAWA SATOSHI , TANIGUCHI KIYOSHI , KIYOHARA TAKAHITO , NAKATAKE NAOKI
IPC分类号： G03G15/20 , B65B25/24 , B65D85/67 , G03G15/00 , G03G15/16 , G03G21/00
CPC分类号： G03G15/754 , G03G2221/1609
摘要： PROBLEM TO BE SOLVED: To provide a package and a packaging method to be used in an electronic photographic device which has recently attained a high image quality and high resolution in full colors, without unevenness, curls and flaws occurring on an endless belt such as a belt-like electronic photosensitive material, an intermediate transfer belt and a conveyance belt. SOLUTION: The package comprises a cylindrical body A inserted into the innermost end of the endless belt and a cylindrical body C located outside the belt by the side of the body A, the endless belt wound around the cylindrical bodies A and C, and a cylindrical body B inserted inside the outermost end of the endless belt. The maximum height Rmax defined by JIS B0601 on the surfaces of the three cylindrical bodies is 0.8 to 150 μm. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于电子照相装置中的包装和包装方法，该电子照相装置最近获得了全色的高图像质量和高分辨率，而没有不均匀，在环形带上发生卷曲和缺陷例如带状电子感光材料，中间转印带和输送带。解决方案：包装包括插入环形带的最内端的圆筒体A和位于主体A侧的带外的圆筒体C，环形带缠绕在圆柱体A和C上，以及插入在环形带的最外端内的筒状体B。由JIS B0601在三个圆柱体的表面上限定的最大高度Rmax为0.8〜150μm。版权所有（C）2004，JPO

8. 发明专利

JP2004045508A Electrophotographic method and electrophotographic device 审中-公开
公开(公告)号：JP2004045508A
公开(公告)日：2004-02-12
申请号：JP2002200042
申请日：2002-07-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANIGUCHI KIYOSHI , KIYOHARA TAKAHITO
IPC分类号： G03G15/00 , G03G5/04 , G03G5/10 , G03G15/02 , G03G15/08 , G03G21/00 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic method and an electrophotographic device in which the film thickness of an electrophotographic photoreceptor is small and an image defect after repetitive use seemed to be caused by a charge leak hardly appears even when electrolytic intensity applied to the electrophotographic photoreceptor is high, and which can realize high resolution and prolongation of the life. SOLUTION: In the electrophotographic method, the electrophotographic photoreceptor 1 constituted by providing at least a photoreceptive layer on a conductive supporting body is used, and a series of electrophotographic processes performed to an electrifying means 2, an image exposure means 3, a developing means 4 and a transfer means 5 are repeatedly performed, and the method is characterized in that the electrophotographic process is repeated in the cycle of 10 or more seconds in an optional place on the photoreceptor 1, and the film thickness of the photoreceptive layer is set to ≤26μm. COPYRIGHT: (C)2004,JPO

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