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41. 发明专利

JP2007079143A Developing device, image forming method and image forming apparatus 审中-公开
标题翻译：开发设备，图像形成方法和图像形成装置
公开(公告)号：JP2007079143A
公开(公告)日：2007-03-29
申请号：JP2005267095
申请日：2005-09-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHII MASAKO , TAKAHASHI TOMOKO
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device for obtaining a high resolution image using ETH development. SOLUTION: In the developing device which develops an electrostatic latent image on an image carrier 10 by adhering powder T to the electrostatic latent image, it is constituted by providing a conveyance member 1 arranged opposite to the image carrier 10 and having a plurality of electrodes 102 for generating traveling wave electric field for transferring the powder T, conveying the powder while applying voltage of n-phase to the conveyance member 1 to develop the electrostatic latent image, electrode width in the powder traveling direction of the electrodes 102 is regulated to 1 time or more to 20 times or less of mean particle diameter of the powder and electrode intervals of the powder traveling direction of the electrodes are regulated to one time or more to 20 times or less of the mean particle diameter of the powder. Thus, electrostatic force sufficient for conveying and hopping the powder by conquering adsorption power of the powder is acted to the electrically charged powder on the electrodes or between electrodes, accumulation of the powder is prevented and the powder is stably and efficiently conveyed and hopped with low voltage and high quality development is performed. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种使用ETH开发获得高分辨率图像的显影装置。解决方案：在通过将粉末T粘附到静电潜像而在图像载体10上形成静电潜像的显影装置中，通过提供与图像载体10相对布置的传送构件1，并且具有多个用于产生用于转印粉末T的行波电场的电极102，在向输送构件1施加n相的电压的同时输送粉末以显影静电潜像，调节电极102的粉末行进方向的电极宽度为粉末的平均粒径的1倍以上至20倍以下，电极的粉末行进方向的电极间隔被调节为粉末的平均粒径的一倍以上至20倍以下。因此，通过征服粉末的吸附动力来输送和粉碎粉末的静电力被施加到电极上或电极之间的带电粉末，防止了粉末的积聚，并且粉末被稳定有效地传送和跳跃低进行电压和高质量的开发。版权所有（C）2007，JPO＆INPIT

42. 发明专利

JP2006301112A Electrophotographic photoreceptor and method for manufacturing same 审中-公开
标题翻译：电子照相机及其制造方法
公开(公告)号：JP2006301112A
公开(公告)日：2006-11-02
申请号：JP2005120028
申请日：2005-04-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUZUKI YASUO , YASUTOMI HIROSHI , YOSHII MASAKO , OGAWA TAKESHI , CHIKUSHIYUTSU NOBORU , YOSHINO MASAKI
IPC分类号： G03G5/14 , G03G5/047 , G03G5/05 , G03G5/06 , G03G5/07 , G03G5/147
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic photoreceptor resulting in favorable image quality and to provide a method for manufacturing the photoreceptor. SOLUTION: The electrophotographic photoreceptor comprises an intermediate layer 33 essentially comprising metal oxide and a binder resin, a charge generating layer 35 having charge generating regions containing a charge generating material formed as distributed into dots, and a charge transport layer 37 (a surface layer containing a charge transport material), layered in this order on a conductive support 31. The charge generating regions are formed and distributed by spraying a coating liquid of the charge generating layer by a piezo type ink-jet method. The possession area rate of the charge generating region in the charge generating layer is specified to 90% or less. The dot pitch of the charge generating regions is adjusted to be equal to the resolution of the image forming apparatus. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有良好图像质量的电子照相感光体并提供一种制造感光体的方法。电子照相感光体包括基本上包含金属氧化物和粘合剂树脂的中间层33，具有包含形成为点状的电荷产生材料的电荷产生区的电荷产生层35和电荷输送层37 包含电荷输送材料的表面层）依次层叠在导电性载体31上。电荷产生区域通过压电型喷墨法喷射电荷产生层的涂布液而形成和分布。电荷产生层中的电荷产生区域的占有面积率被规定为90％以下。电荷产生区域的点间距被调整为与图像形成装置的分辨率相等。版权所有（C）2007，JPO＆INPIT

43. 发明专利

JP2006030710A 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：JP2006030710A
公开(公告)日：2006-02-02
申请号：JP2004210798
申请日：2004-07-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHII MASAKO , SUZUKI YASUO , WATANABE KAZUTO , YOSHINO MASAKI , YASUTOMI HIROSHI , OGAWA TAKESHI
IPC分类号： G03G15/04 , G03G5/047
摘要： PROBLEM TO BE SOLVED: To provide a latent image forming means or an image forming method and apparatus when using an electrophotographic photoreceptor giving a satisfactory image quality in the electrophotographic photoreceptor in which charge generation layers are formed dispersedly in a dot shape and as micro regions.
SOLUTION: In the electrophotographic photoreceptor, a charge generation layer and a charge transport layer are disposed on a conductive substrate and the charge generation layers are formed dispersedly in the dot shape as micro regions. The image forming apparatus comprises: a charging means of the photoreceptor; and an exposure means for forming electrostatic latent image on the photoreceptor as a latent image forming means for forming the electrostatic latent image on the electrophotographic photoreceptor, wherein the exposure means satisfies a following relation between a dot diameter D of the charge generation layer of the photoreceptor and 1/e
2 diameter ω
y of exposure intensity as exposure beam spot diameter used by an exposure means; ω
y ≤4D.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供潜像形成装置或图像形成方法和装置，当使用电子照相感光体在电子照相感光体中具有令人满意的图像质量时，其中电荷产生层分散形成点状并且以微区域。解决方案：在电子照相感光体中，在导电性基板上配置电荷产生层和电荷输送层，电荷产生层以点状分散形成微区域。图像形成装置包括：感光体的充电装置; 以及用于在感光体上形成静电潜像的曝光装置，作为在电子照相感光体上形成静电潜像的潜像形成装置，其中曝光装置满足感光体的电荷产生层的点直径D之间的关系和作为曝光装置使用的曝光光斑直径的曝光强度的1 / e 2 直径ω y ωý≤4D。版权所有（C）2006，JPO＆NCIPI

44. 发明专利

JP2006010970A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2006010970A
公开(公告)日：2006-01-12
申请号：JP2004186744
申请日：2004-06-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： OGAWA TAKESHI , SUZUKI YASUO , YASUTOMI HIROSHI , YOSHII MASAKO , YOSHINO MASAKI , CHIKUSHIYUTSU NOBORU
IPC分类号： G03G15/04 , B41J2/44 , B41J2/45 , B41J2/455 , G03G5/047 , G03G15/00 , G03G15/043 , G03G21/00 , G03G21/14 , H04N1/036
摘要： PROBLEM TO BE SOLVED: To obtain a proper writing position at low cost in an image forming apparatus using a photoreceptor having a structure in which a charge generating layer is formed as micro regions in a dispersed dot shape. SOLUTION: A prescribed developed pattern is formed on the photoreceptor having a structure in which a charge generating layer is formed as micro regions in a dispersed dot shape and the pattern is measured by a P sensor 210. Density values measured by the P sensor 210 are input into a delay quantity determination section 105, where a delay quantity used for output is determined. The delay quantity determination section 105 inputs the delay quantity used for output into a delay circuit 102. This delay circuit 102 delays image data input by a video signal processing section 101 only by a time based on the delay quantity input by the delay quantity determination section 108 and outputs image data to an LED drive 103. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：在使用具有其中形成电荷产生层的结构的感光体作为分散点形状的微区域的图像形成装置中，以低成本获得适当的写入位置。解决方案：在感光体上形成规定的显影图案，该感光体具有形成分散点形状的微区的电荷产生层的结构，并且通过P传感器210测量图案。由P测量的密度值传感器210被输入到延迟量确定部分105中，其中确定用于输出的延迟量。延迟量确定部105将用于输出的延迟量输入延迟电路102.该延迟电路102仅延迟由视频信号处理部101输入的图像数据的延迟量基于延迟量判定部输入的延迟量 108，并将图像数据输出到LED驱动器103.版权所有（C）2006，JPO＆NCIPI

45. 发明专利

JP2005331691A Electrophotographic photoreceptor and image forming apparatus 有权
标题翻译：电子照相机和图像形成装置
公开(公告)号：JP2005331691A
公开(公告)日：2005-12-02
申请号：JP2004149626
申请日：2004-05-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YASUTOMI HIROSHI , SUZUKI YASUO , YOSHII MASAKO , OGAWA TAKESHI , WATANABE KAZUTO , YOSHINO MASAKI
IPC分类号： G03G5/047 , G03G5/05
摘要： PROBLEM TO BE SOLVED: To provide such an image forming apparatus which can make toner adhere uniformly to the entire surface of even a solid image, while forming an electrostatic latent image of fully high contrast.
SOLUTION: The electrophotographic photoreceptor has charge generating regions, having at least a charge generating material on a conductive support and charge transporting layers containing at least a charge transporting material, wherein the charge generating regions are formed by being dispersed like dots in the form of microregions and further, the charge generating regions in the form of the individual dots are so shaped as to be increased in the thickness toward the central part from the peripheral part.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供这样的图像形成装置，其可以使得调色剂均匀地粘附到甚至固体图像的整个表面上，同时形成完全高对比度的静电潜像。解决方案：电子照相感光体具有电荷产生区，其至少在导电载体上具有电荷产生材料，并且至少含有电荷传输材料的电荷传输层，其中电荷产生区通过在形成微区域，此外，各个点形式的电荷产生区域的形状被成形为从周边部分朝向中心部分的厚度增加。版权所有（C）2006，JPO＆NCIPI

46. 发明专利

JP2005266481A Image forming apparatus, and image forming method 审中-公开
标题翻译：图像形成装置和图像形成方法
公开(公告)号：JP2005266481A
公开(公告)日：2005-09-29
申请号：JP2004080511
申请日：2004-03-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHII MASAKO
IPC分类号： G03G15/00 , G03G15/04 , G03G15/043
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which maintains high stability by maintaining high image quality of excellent dot reproducibility and gradation even if film thickness of an image carrier is varied with the passage of time. SOLUTION: In the image forming apparatus including an image carrier, a charging device for charging the image carrier, an exposure device 1171A for forming an electrostatic latent image based on image information on the image carrier and a developing device for developing the electrostatic latent image on the image carrier using toner of the same polarity, the image forming apparatus comprises an engine control section 13 and a photosensitive body current value detection section 20 comprising a film thickness variation recognizing means for measuring or predicting film thickness of the image carrier and recognizing variation of the film thickness, and comprises, in the engine control section 13, a configuration as an exposure control means for controlling the exposure state of the exposure device 1171A with the variation in the film thickness of the image carrier. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：解决的问题：提供一种图像形成装置，其通过保持图像载体的膜厚度随时间而变化的优异的点再现性和灰度的高图像质量而保持高稳定性。解决方案：在包括图像载体的图像形成装置中，用于对图像载体进行充电的充电装置，用于基于图像载体上的图像信息形成静电潜像的曝光装置1171A和用于显影静电的显影装置图像形成装置包括发动机控制部13和感光体电流值检测部20，感光体电流值检测部20包括用于测量或预测图像载体的膜厚度的膜厚变化识别装置，以及识别膜厚度的变化，并且在发动机控制部13中包括作为曝光控制装置的配置，用于根据图像载体的膜厚度的变化来控制曝光装置1171A的曝光状态。版权所有（C）2005，JPO＆NCIPI

47. 发明专利

JP2004170473A Image forming apparatus 审中-公开
公开(公告)号：JP2004170473A
公开(公告)日：2004-06-17
申请号：JP2002332982
申请日：2002-11-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHII MASAKO
IPC分类号： G03G9/08 , G03G9/097 , G03G15/04 , G03G15/043 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which ensures little unevenness in dots formed on an image carrier, can form an image with good graininess and gives high image quality. SOLUTION: The image forming apparatus comprises an image carrier, an exposure section in which an electrostatic latent image is formed on the image carrier by irradiation with laser light, and a development section in which a toner image corresponding to the electrostatic latent image is formed on the image carrier. When a resolved pixel unit is defined as P (μm) and a beam spot diameter of laser light is defined as ω (μm), the image is formed in such a way as to satisfy the relation ω≤2P. COPYRIGHT: (C)2004,JPO

48. 发明专利

JP2004070251A Image forming device 审中-公开
公开(公告)号：JP2004070251A
公开(公告)日：2004-03-04
申请号：JP2002233268
申请日：2002-08-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IINO AYAKO , IWAI SADAYUKI , TAKAHASHI TOMOKO , KOSUGI HIDEKI , YOSHII MASAKO
IPC分类号： G03G15/00 , G03G15/01 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming device which controls transferring electric field strength and which can perform transferring by optimum transferring electrolysis intensity which does not generate perturbation of an image. SOLUTION: This image forming device has exposing means and developing means for forming images on image carriers and is provided with toner deposition amount detecting means (81 to 84) each of which detects the toner deposition amount of the reference toner pattern image formed on each image carrier and toner electric charge detecting means (86 to 89) each of which detects the electric charge amount of each image carrier and a control means which controls transferring electric field strength based on both detected results of the toner deposition amount detecting means and the toner electric charge amount detecting means. COPYRIGHT: (C)2004,JPO

49. 发明专利

JP2004062050A Image forming apparatus 审中-公开
公开(公告)号：JP2004062050A
公开(公告)日：2004-02-26
申请号：JP2002223400
申请日：2002-07-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KOSUGI HIDEKI , IWAI SADAYUKI , TAKAHASHI TOMOKO , YOSHII MASAKO , IINO AYAKO
IPC分类号： G03G15/01 , G03G15/00 , G03G15/16
CPC分类号： G03G15/1665 , G03G15/6558 , G03G2215/00556
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus in which the deterioration of an image quality due to transfer scattering and defective transfer caused at the time of transferring a toner image from an image carrier to the various kinds of transfer materials such as paper is suppressed.
SOLUTION: In the image forming apparatus by which the toner image is formed on the image carrier and is transferred to the transfer material held and fed by the image carrier and a transfer material carrier and the image carrier and the transfer material carrier are driven so as to make both surfaces move in the same direction at a contact part where they come into contact by holding the transfer material, an electric field in a direction where the toner image is moved to the side of the image carrier 11 is formed between the surface of the image carrier 11 and the surface of the transfer material 15 on an upstream side in the moving direction of the transfer material from the contact part, and an electric field in a direction where the toner image is moved to the side of the transfer material 15 is formed between the surface of the image carrier and the surface of the transfer material on a downstream side from the contact part.
COPYRIGHT: (C)2004,JPO

50. 发明专利

JP2004021124A Image forming apparatus 审中-公开
公开(公告)号：JP2004021124A
公开(公告)日：2004-01-22
申请号：JP2002179115
申请日：2002-06-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHII MASAKO
IPC分类号： B41J29/46 , G03G15/00 , G03G21/00 , H04N1/29
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of forming an excellent electrostatic latent image on a photoreceptor even against environmental and temporal image variation even when an optical write head having an image forming element array of image forming elements of an erect nonmagnification system arrayed in an array direction is used by detecting and feeding an abnormal image back to imaging conditions in an image forming apparatus having the image forming element array. SOLUTION: The image forming apparatus which forms the electrostatic latent image on an image carrier by the optical write head having the image forming element array of image forming elements of the erect nonmagnification system arrayed in the array direction has a detecting means of detecting the abnormal image and a control means of controlling the image formation conditions according to its detection signal. COPYRIGHT: (C)2004,JPO

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