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1. 发明专利

JP2005091537A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2005091537A
公开(公告)日：2005-04-07
申请号：JP2003322373
申请日：2003-09-16
申请人： Hitachi Ltd , Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社 , 株式会社日立製作所
发明人： ISHII MIEKO , MITSUYA TERUAKI , MABUCHI HIROYUKI , MIYASAKA TORU
IPC分类号： G03G21/00 , G03G15/01
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which is reduced in the number of color drift correction times, correction time, toner consumption, and apparatus cost as the image forming apparatus which performs color drift correction by using a color drift-detecting pattern (patch). SOLUTION: The image forming apparatus is provided with a color drift detecting unit consisting of: a color drift-detecting pattern (patch) generating means for performing the control to form the color drift-detecting pattern (patch) by each of the respective colors on an image conveying means by an image forming unit at the time of color drift detection operation; and a detecting sensor for detecting the color drift-detecting pattern (patch) and corrects the color drift based on the color drift detection signal detected by the color drift detecting unit, wherein the sizes of the color drift-detecting pattern (patch) and detecting sensor are appropriately determined according to the sizes of carrier particles and toner particles constituting the color drift-detecting pattern (patch), the amount of slippage of the apparatus, the amount of fluctuation due to an environmental change, etc. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像形成装置，其减少了颜色漂移校正次数，校正时间，调色剂消耗量和装置成本，作为通过使用颜色漂移进行色彩漂移校正的图像形成装置 - 检测模式（补丁）。解决方案：图像形成装置设置有色差检测单元，其包括：颜色漂移检测图案（贴片）产生装置，用于通过每个图像形成装置执行控制以形成色彩漂移检测图案（贴片）在颜色漂移检测操作时由图像形成单元在图像传送装置上的各种颜色; 以及检测传感器，用于根据由色差检测单元检测到的色差漂移检测信号检测色偏检测图案（贴片）并校正色漂，其中色偏检测图案（贴片）的大小和检测传感器根据构成色差检测图案（贴片）的载体颗粒和调色剂颗粒的尺寸，装置的滑动量，由于环境变化引起的波动量等来适当地确定。版权：（C）2005，JPO＆NCIPI

2. 发明专利

JP2009015288A Transfer apparatus, method of manufacturing transfer apparatus and image forming apparatus using transfer apparatus 有权
标题翻译：转印装置，使用转印装置制造转印装置和图像形成装置的方法
公开(公告)号：JP2009015288A
公开(公告)日：2009-01-22
申请号：JP2007327268
申请日：2007-12-19
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： UMEDA TAKAO , MABUCHI HIROYUKI , OHARA SHUNICHI
IPC分类号： G03G15/16 , H01L41/08 , H01L41/09 , H01L41/187 , H01L41/193 , H01L41/22 , H01L41/257 , H01L41/29 , H01L41/313 , H01L41/45
CPC分类号： G03G15/161 , G03G15/0131 , G03G2215/0129
摘要： PROBLEM TO BE SOLVED: To provide a transfer apparatus carrying out toner transferring without an image defect to paper with unevenness on its face and to provide an image forming apparatus using the same. SOLUTION: The transfer apparatus is constituted so that a toner image bearer and a corona transfer means are oppositely disposed, and a vibrating unit for exerting vibration force to the rear face of a toner bearer, is disposed at the position opposite to the corona transfer means across the toner image bearer, wherein the vibrating unit has a cantilever structure for holding an end of a piezoelectric bimorph element in which a pair of piezoelectric bodies each having an electrode formed on the surface, are bonded to both sides of a conductive elastic member (a shim material). A protrusion portion is provided on the other end of the piezoelectric bimorph element. When driving voltage is applied between electrode on the faces of the piezoelectric bodies and the conductive elastic member, voltage is not applied to the piezoelectric bodies in a portion supporting the piezoelectric bimorph element. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种转印装置，其在没有图像缺陷的情况下进行不均匀的纸张的调色剂转印，并提供使用该转印装置的图像形成装置。解决方案：转印装置被构造成使得调色剂图像载体和电晕转印装置相对地设置，并且用于对调色剂承载体的后表面施加振动力的振动单元设置在与电晕转印装置穿过调色剂图像载体，其中振动单元具有用于保持压电双晶片元件的端部的悬臂结构，其中在表面上形成有电极的一对压电体结合到导电的两侧弹性构件（垫片材料）。突起部设置在压电双晶片元件的另一端。当在压电体的表面上的电极和导电弹性部件之间施加驱动电压时，在支撑压电双晶片元件的部分中不向压电体施加电压。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2009014992A Developing device and image forming apparatus with developing device, and manufacturing method for recorded matter 审中-公开
标题翻译：开发设备的开发设备和图像形成设备以及用于记录的物件的制造方法
公开(公告)号：JP2009014992A
公开(公告)日：2009-01-22
申请号：JP2007176436
申请日：2007-07-04
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： TSUJITA AKIO , MABUCHI HIROYUKI , KATAOKA KAORU , SUZUKI KATSUHIKO
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing device 102 capable of achieving both high developing capability and uniform developing capability even in a high speed, wide printing process for full-color. SOLUTION: A fountain type developing device provided in an image forming apparatus is disclosed, wherein a developing roller 2 satisfies expressions 8≤G/A×Log(R)≤24 and 40≤F×W/V≤130, when a developing gap which is an empty space between a photoreceptor 101 and the developing roller 2 in a developing section is G (mm), the volume resistivity of developer 4 is R (Ωcm), a rate at which developer is filled into the empty space between the photoreceptor 101 and developing roller 2 is A, the circumferential speed of the photoreceptor is v (mm/sec), the development nip width which is the width of an area near the photoreceptor 101 and developing roller 2 is W (mm), and the frequency of AC composition of a bias voltage applied between the photoreceptor 101 and developing roller 2 is F (Hz). COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使在用于全色的高速，宽的打印过程中，也提供能够实现高显影能力和均匀显影能力的显影装置102。解决方案：公开了一种设置在图像形成装置中的喷泉型显影装置，其中显影辊2满足表达式8≤G/ A×Log（R）≤24和40≤F×W /V≤130，当作为显影部中的感光体101和显影辊2之间的空白空间的显影间隙为G（mm），显影剂4的体积电阻率为R（Ωcm），显影剂填充到空隙的速度感光体101和显影辊2之间的感光体的周向速度为V（mm / sec），感光体101和显影辊2的宽度的宽度为W（mm）并且施加在感光体101和显影辊2之间的偏置电压的AC组成的频率为F（Hz）。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2008257225A Image forming apparatus and tandem image forming apparatus using same 有权
标题翻译：图像形成装置和使用其的条形图像形成装置
公开(公告)号：JP2008257225A
公开(公告)日：2008-10-23
申请号：JP2008059142
申请日：2008-03-10
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： KUWABARA AKITOMO , ONOSE TSUKASA , SAWAHATA AKIRA , OTOME YUKIO , YAMAZAKI AKIHIKO , MABUCHI HIROYUKI
IPC分类号： G03G15/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus that forms a high quality image. SOLUTION: The apparatus includes: a rotary drive means for driving a transfer member in the same direction as a carrying direction of a medium to be recorded; a contact separation means for abutting the transfer member with an image carrier during printing, and for separating the transfer member from the image carrier when not printing, through the medium to be recorded; and a drive transmission shutoff means for transmitting a rotary driving force from the rotary drive means to the transfer member when starting printing, and for shutting off the rotary driving force at the point when the rotation speed of the transfer member is stabled. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供形成高质量图像的图像形成装置。解决方案：该装置包括：旋转驱动装置，用于沿与待记录介质的传送方向相同的方向驱动传送部件; 接触分离装置，用于在打印期间将转印部件与图像载体邻接，并且用于当不打印时通过待记录的介质将转印部件与图像载体分离; 以及驱动传递切断装置，用于在开始打印时将来自旋转驱动装置的旋转驱动力传递到传送部件，并且用于在转印部件的旋转速度稳定时切断旋转驱动力。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2006091425A Developing device and electrophotographic apparatus using the same 审中-公开
标题翻译：开发设备和使用该设备的电子照相设备
公开(公告)号：JP2006091425A
公开(公告)日：2006-04-06
申请号：JP2004276695
申请日：2004-09-24
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： OKADA HISAO , MABUCHI HIROYUKI , MITSUYA TERUAKI , KAWANISHI TSUNEAKI , TSUJITA AKIO
IPC分类号： G03G15/08 , G03G9/10 , G03G9/107 , G03G9/113 , G03G15/09
CPC分类号： G03G15/09 , G03G9/10 , G03G9/1075 , G03G9/1139 , G03G15/0806 , G03G2215/0609 , G03G2215/0648
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic apparatus capable of performing high quality printing while maintaining a sufficient printing density with a small developing device, with respect to an electrophotographic apparatus which performs high-speed printing, such as a printer or a copying machine. SOLUTION: In the electrophotographic apparatus, a two-component developer comprising a carrier and toner is used as a developer, wherein the carrier has a volume average particle diameter of 6 Ωcm, and the developing device has a developing roll rotating in the same direction as a photoreceptor and a developing roll rotating in the opposite direction to the photoreceptor. The electrophotographic apparatus has the developing device. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够进行高质量打印同时通过小型显影装置保持足够的打印浓度的电子照相设备相对于执行高速打印的电子照相设备，例如打印机或打印机复印机。解决方案：在电子照相设备中，使用包含载体和调色剂的双组分显影剂作为显影剂，其中载体的体积平均粒径<70μm，体积电阻率≥10 6 Ωcm，并且显影装置具有沿与感光体相同的方向旋转的显影辊和显影辊沿与感光体相反的方向旋转。电子照相设备具有显影装置。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2006058504A Developing unit and electrophotographic device 审中-公开
标题翻译：开发单元和电子显示设备
公开(公告)号：JP2006058504A
公开(公告)日：2006-03-02
申请号：JP2004238988
申请日：2004-08-19
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： NAKAYAMA MASAYOSHI , MABUCHI HIROYUKI , OYOSHI HIROFUMI , KATAOKA KAORU
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a developing unit and an electrophotographic device equipped with it capable of maintaining the developer life for a long time and fully obtaining the effects of the mixed and stirred developer. SOLUTION: The 1st spiral screw 22 and the 2nd spiral screw 23 in the developing unit 20 of an electrophotographic device 1 turn their outer surfaces perpendicularly from down to up at the position where they approach closest each other. The revolutions of the 1st spiral screw 22 are about 5 to 20% larger than the 2nd spiral screw 23. An end 27B of the toner supply screw 27A in the toner supply unit 27 which is the section to supply toner 3A to the 1st spiral screw 22 is disposed at the position one pitch short on the spiral section 22B from the most upstream position of the spiral section 22B to the downstream in the supply direction of the developer 3 by the 1st spiral screw 22. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种配备有能够长时间保持显影剂寿命并充分获得混合搅拌的显影剂的效果的显影单元和电子照相装置。解决方案：电子照相装置1的显影单元20中的第一螺旋形螺钉22和第二螺旋形螺钉23使它们的外表面在彼此接近最接近的位置处从下向上垂直转动。第一螺旋螺钉22的转数比第二螺旋螺钉23大约5至20％。调色剂供应单元27中的调色剂供应螺杆27A的端部27B是调色剂3A向第一螺旋螺杆 22由涡卷部22B的螺旋部22B的最上游位置的间距短的位置通过第1螺旋螺杆22配置在显影剂3的供给方向的下游侧。（C） 2006年，JPO＆NCIPI

7. 发明专利

JP2006047842A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2006047842A
公开(公告)日：2006-02-16
申请号：JP2004231047
申请日：2004-08-06
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： ROKUTANDA TAKASHI , MABUCHI HIROYUKI , MIYASAKA TORU , KINOSHITA YASUSHI , SUZUKI YUICHIRO
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus for easily exchanging a single component.
SOLUTION: The image forming apparatus includes a photoreceptor for making a toner image by forming a latent image on the surface and adhering toner according to the latent image, a rotatable image carrier, and a transfer part for transferring the toner image from the photoreceptor to the image carrier. The image carrier and the transfer part are detachable from the image forming apparatus as an image carrying unit. The transferring part is detachable in a direction orthogonal to a rotation direction of the image carrier.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于容易地更换单个部件的图像形成装置。解决方案：图像形成装置包括：通过在表面上形成潜像并根据潜像粘附调色剂，可旋转图像载体和转印部分来形成调色剂图像的感光体，用于将调色剂图像从感光器到图像载体。图像载体和转印部分作为图像承载单元从图像形成装置可拆卸。转印部分可以在与图像载体的旋转方向正交的方向上分离。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2007218949A Contact type transfer means and continuous feed electrostatic printer using the same 有权
标题翻译：接触式传送装置和连续进料静电打印机
公开(公告)号：JP2007218949A
公开(公告)日：2007-08-30
申请号：JP2006036147
申请日：2006-02-14
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： UMEDA TAKAO , MABUCHI HIROYUKI , TSUJITA AKIO
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide a continuous feed electrostatic printer in which a transfer roller as a contact type transfer member is extended in life and high in durability and which prevents a transfer defect due to vibrations caused by repulsive force that the transfer roller rotating in press contact with a paper receives from a paper tensed and conveyed at a high speed.
SOLUTION: The contact type transfer member comprises a driving roller which drives a conductive belt, and a conductive rubber roller and a tension roller which are driven by the conductive belt to rotate, and the continuous paper is pressed against a toner image carrier across the conductive belt rotating the conductive rubber roller. A power source applies a voltage having the polarity opposite to that of toner to a core bar of the conductive rubber roller. Further, the constitution (thickness, rubber hardness, etc.) of the conductive rubber roller and conductive belt and press-contact force of the conductive roller to the paper and toner image carrier are optimized so that the width of a contact nip area between the conductive belt and continuous paper at a transfer section may be narrower than the width of a contact nip area between the paper and toner image carrier.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种连续进给静电打印机，其中作为接触型转印部件的转印辊寿命延长并且耐久性高，并且防止由于排斥力引起的振动导致的转印缺陷转印与纸张接触的辊旋转从纸张收到并张紧并以高速传送。解决方案：接触型转印构件包括驱动导电带的驱动辊和由导电带驱动旋转的导电橡胶辊和张力辊，并且连续的纸被压靠在调色剂图像载体上穿过导电带旋转导电胶辊。电源将具有与调色剂极性相反的极性的电压施加到导电橡胶辊的芯棒。此外，导电橡胶辊和导电带的结构（厚度，橡胶硬度等）和导电辊与纸和调色剂图像载体的压力接触力被优化，使得接触夹持区域的宽度导电带和连续纸在转印部分可以比纸和调色剂图像载体之间的接触夹持区域的宽度窄。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2006099084A Development device and electrostatic recording device 有权
标题翻译：开发设备和静电记录设备
公开(公告)号：JP2006099084A
公开(公告)日：2006-04-13
申请号：JP2005249169
申请日：2005-08-30
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： MABUCHI HIROYUKI , NAKAYAMA MASAYOSHI , OYOSHI HIROFUMI
IPC分类号： G03G15/08 , G03G15/09
摘要： PROBLEM TO BE SOLVED: To provide a development device capable of maintaining high quality printing, without such problems as drop in the printing density and spattering of carrier particles, etc. over long periods of time, in printing at high speed with a large amount of toner consumption, and to provide an electrostatic recording device equipped with the development device. SOLUTION: A developer 3, having as primary components a nonmagnetic toner and magnetic particles that are referred to as a "carrier" is accommodated in a developer housing container 21 of the development device 20. The carrier is composed by uniformly covering the surface of carrier core material made of a magnetic material with insulating synthetic resin. The toner is mixed with the carrier at a weight ratio of 3 to 10% in the developer 3. The carrier has an average particle size of 65 μm or smaller and a saturation magnetization of at least 70 emu/g. The surface of a sleeve roller 24 subjected to metal shot processing, to achieve a surface roughness (Rz) of 0.45 to 1.08 times the average particle size of the carrier, or more specifically, a roughness Rz of about 30 μm. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供能够保持高质量打印的显影装置，不存在长时间打印密度下降和载体颗粒飞溅等问题，在高速打印时大量的调色剂消耗，并提供配备有显影装置的静电记录装置。解决方案：作为主要组分的显影剂3被称为“载体”的非磁性调色剂和磁性颗粒被容纳在显影装置20的显影剂容纳容器21中。载体由均匀地覆盖由具有绝缘合成树脂的磁性材料制成的载体芯材的表面。调色剂在显影剂3中以3至10％的重量比与载体混合。载体的平均粒径为65μm或更小，饱和磁化强度至少为70emu / g。实现金属喷丸处理的套筒辊24的表面，以实现载体的平均粒径的0.45〜1.08倍的表面粗糙度（Rz），或者更具体地说，为约30μm的粗糙度Rz。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2006053198A Developing apparatus 有权
标题翻译：开发设备
公开(公告)号：JP2006053198A
公开(公告)日：2006-02-23
申请号：JP2004232927
申请日：2004-08-10
申请人： Ricoh Printing Systems Ltd , リコープリンティングシステムズ株式会社
发明人： OKADA HISAO , KAWANISHI TSUNEAKI , NAKAYAMA MASAYOSHI , MABUCHI HIROYUKI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus in which back edge omission does not occur even when a developing gap is made narrower than 0.5mm. SOLUTION: The image forming apparatus is provided with a first developing roller and a second developing roller installed along the moving direction of a recording body and rotated in reverse to each other and an electrostatic latent image formed on the recording body is developed by the first and the second rollers with a two component magnetic developer having magnetic carrier and toner as main components. The developing gap between the first developing roller and the recording body, and the developing gap between the second developing roller and the recording body are made to be 0.1mm to 0.5mm respectively, and periphery speed ratio S1 (=Vd1/Vp) between periphery speed of the first developing roller (Vd1) and the periphery speed of the recording body (Vp) is made greater than the periphery speed ratio S2 (=Vd2/Vp) between the periphery speed of the second developing roller (Vd2) and the periphery speed (Vp) of the recording body. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：为了提供即使当显影间隙窄于0.5mm时也不会发生后边缘遗漏的图像形成装置。解决方案：图像形成装置设置有沿着记录体的移动方向安装并相反地旋转的第一显影辊和第二显影辊，并且形成在记录体上的静电潜像由第一和第二辊具有带有磁性载体的二组分磁性显影剂和调色剂作为主要组分。第一显影辊和记录体之间的显影间隙以及第二显影辊和记录体之间的显影间隙分别为0.1mm至0.5mm，外周边之间的周边速度比S1（= Vd1 / Vp）使第一显影辊（Vd1）的速度和记录体的周边速度（Vp）大于第二显影辊（Vd2）的周边速度与周边的周边速度之间的周边速度比S2（= Vd2 / Vp）记录体的速度（Vp）。版权所有（C）2006，JPO＆NCIPI

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