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1. 发明专利

JP2011257777A Discharge irregularity measuring method, discharge irregularity observation method, discharge irregularity observation device 有权
标题翻译：放电非正规测量方法，放电非正常观察方法，放电非正常观察装置
公开(公告)号：JP2011257777A
公开(公告)日：2011-12-22
申请号：JP2011185903
申请日：2011-08-29
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： USAMI MOTOHIRO , AOKI SHINJI , KADONAGA MASAFUMI , SEYA KEIICHI , KONDO HIROSHI
IPC分类号： G03G21/00 , G01N21/88 , G01R27/02 , G03G15/02
摘要： PROBLEM TO BE SOLVED: To provide a discharge irregularity observation method for obtaining a member making use of discharge or a charge phenomenon by the discharging which is developed on the basis of knowledge obtained by measuring a microscopic electrical property and in which irregularity in density or a void is not occurred.SOLUTION: A discharge irregularity observation device is provided with a transparent electrode substrate 7 with a semi-transparent or transparent electrode 2 on a surface facing a roller member 1 installed so that an electrode surface can be brought into contact with or separated from a surface of the roller member. Then, a potential difference is provided between the transparent electrode substrate 7 and a metal core of the roller member. Discharge light occurring due to the potential difference provided between the transparent electrode substrate 7 and the roller member 1 is photographed by a photographic device 3 installed on a back side of the transparent electrode substrate and discharge irregularities occurring in the roller member are observed.
摘要翻译：要解决的问题：提供一种排出不规则性观察方法，用于通过基于通过测量微电学特性获得的知识而开发的排出获得使用排放物或电荷现象的构件，并且其中不规则性密度或空隙不发生。解决方案：排出不规则性观察装置在与辊构件1相对的表面上设置有具有半透明或透明电极2的透明电极基板7，所述表面安装成使得电极表面可以与电极表面接触或分离辊构件的表面。然后，在透明电极基板7和辊部件的金属芯之间设置电位差。通过安装在透明电极基板的背面的照相装置3拍摄由于透明电极基板7与辊构件1之间的电位差而产生的放电光，并观察到在辊构件中发生的排出不规则。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2005316191A Image quality estimating method and image forming apparatus 审中-公开
标题翻译：图像质量估计方法和图像形成装置
公开(公告)号：JP2005316191A
公开(公告)日：2005-11-10
申请号：JP2004134619
申请日：2004-04-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： USAMI MOTOHIRO , KADONAGA MASAFUMI , KISHI YUMIKO , SEYA KEIICHI , SHOJI HISAFUMI , YOSHII MASAKO
IPC分类号： G03G15/00 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide an image quality estimating method for obtaining stable image quality by using a relation between the image quality and variation in the quantity of electrified toner in developer deteriorating with time, and to provide an image forming apparatus capable of applying such an image quality estimating method. SOLUTION: Relational formula is obtained from at least a beam diameter ω, the average quantity of electrified toner in developer (average Q/M) and the actual measurement data of the distribution width of the quantity of electrified toner (ΔQ/M) and dot reflectivity variation width at the time. Based upon thus obtained formula, image quality is estimated. Here, the beam spot diameter ω is the average value of 1/e 2 diameters of beams with maximum intensity in the main and sub-scanning directions. The distribution width of the quantity of electrified toner ΔQ/M is the width of 1/e 2 of Q/M distribution maximum frequency. The dot reflectivity variation width is the width of the maximum frequency of 1/e 2 in the distribution of the measured reflectivities of at least 1000 dots. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像质量估计方法，用于通过利用图像质量与显影剂中带电量的调色剂的量随时间的变化之间的关系来获得稳定的图像质量，并且提供一种能够应用这样的图像质量估计方法。解决方案：关系式是从至少一个光束直径ω，显影剂中的带电调色剂的平均量（平均Q / M）和带电量调色剂的分布宽度的实际测量数据（ΔQ/ M ）和点反射率变化宽度。基于这样得到的公式，估计图像质量。这里，光点直径ω是在主扫描方向和副扫描方向上具有最大强度的光束的1 / e 2 直径的平均值。带电量的调色剂的分布宽度ΔQ/ M是Q / M分布最大频率的1 / e 2 的宽度。点反射率变化宽度是所测量的至少1000点的反射率分布中最大频率的1 / e 2 的宽度。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2005242027A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2005242027A
公开(公告)日：2005-09-08
申请号：JP2004052307
申请日：2004-02-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KADONAGA MASAFUMI
IPC分类号： G03G9/08 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which can perform sufficient transfer with less transfer scattering even when the toner has high charge amount, intense deposition force on a photoreceptor or broad distribution of toner charges.
SOLUTION: The transfer conditions are optimized by incorporating relational expressions obtained by the experimental results of a discharge model into the relation between the charge amount of discharge and a transfer gap distance and between a range where the charge moves by discharge (discharge size) and the transfer gap distance when discharge is induced between a non-image part of a photoreceptor drum 402 and an intermediate transfer belt 426.
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，即使当调色剂具有高电荷量，对感光体的强烈沉积力或调色剂电荷的广泛分布时，也能够以较少的传播散射进行充分的转印。
解决方案：通过将放电模型的实验结果获得的关系表达式与放电电荷量与转移间隙距离之间的关系以及充电通过放电移动的范围（放电尺寸）和在感光鼓402的非图像部分和中间转印带426之间引起放电时的转印间隙距离。（C）2005，JPO＆NCIPI

4. 发明专利

JP2005099699A Image forming apparatus and process cartridge for the same 审中-公开
标题翻译：图像形成装置及其相同的处理盒
公开(公告)号：JP2005099699A
公开(公告)日：2005-04-14
申请号：JP2004143109
申请日：2004-05-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NIIMI TATSUYA , KADONAGA MASAFUMI
IPC分类号： G03G5/00 , G03G5/06 , G03G5/07 , G03G5/14 , G03G5/147 , G03G15/02
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus for forming a stable image, even if performing repeated use for suppressing friction amount reduction of a photoreceptor, while securing electrification uniformity by considering hazard in the repeated use of the photoreceptor. SOLUTION: An electrophotographic device comprises at least an electrification means, an exposure means, a development means, a transfer means and an electrophotographic photoreceptor. An electrification member used for the electrification means is a roller shaped electrification member arranged near to the photoreceptor. The image forming apparatus performs electrification, by applying voltage superposing alternating-current voltage on direct-current voltage in the electrification member under the condition that a total amount of energy, having charge particles colliding the photoreceptor during electrification in an electrification nip formed between the electrification member and the photoreceptor satisfies 0.8×10 -4 ≤ the total amount of energy having charge particles/photoreceptor circumferential length (J/m 2 mm)≤1.5×10 -4 . COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种用于形成稳定图像的图像形成装置，即使重复使用以抑制感光体的摩擦量减小，同时通过考虑在重复使用感光体中的危险来确保充电均匀性。解决方案：电子照相装置至少包括带电装置，曝光装置，显影装置，转印装置和电子照相感光体。用于带电装置的起电构件是布置在感光体附近的辊状带电构件。图像形成装置通过在充电构件中施加将交流电压叠加在直流电压上的电压来进行通电，该电荷在具有电气化的电气化区域中形成的带电粒子在充电期间碰撞感光体的总能量构件和感光体满足0.8×10 -4 ≤具有带电粒子/感光体周长的能量的总量（J / m 2 mm）≤1.5×10 -4 。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2004106365A Image formation apparatus and copying apparatus 审中-公开
公开(公告)号：JP2004106365A
公开(公告)日：2004-04-08
申请号：JP2002272669
申请日：2002-09-19
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOSHII MASAKO , KADONAGA MASAFUMI
IPC分类号： B41J2/44 , G02B26/10 , G03G15/04 , G03G15/16 , H04N1/113 , H04N1/23 , H04N1/29
摘要： PROBLEM TO BE SOLVED: To form high quality images faithful to original images by preventing generation of banding because of superposed exposure without being influenced by resolutions also when writing is carried out by a high resolution. SOLUTION: In the image formation apparatus, a surface of a photoreceptor 13 charged by a charging device is set as a face to be scanned, and a multibeam scanning device 18 is installed for simultaneously light scanning on the face by a plurality of light beams obtained by deflecting and scanning each of light emitted from a plurality of light sources. Toner supplied to the surface of the photoreceptor 13 light scanned by the multibeam scanning device 18 is transferred to a body to be transferred. A superposition length in a vertical scanning direction of scanning lines formed on the face by the simultaneous light scanning by the multibeam scanning device 18 is set to be not larger than a minimum pixel. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2009251467A Electrical condition calculating apparatus, method of calculating electrical condition, method of manufacturing image forming apparatus, information processing program and recording medium 审中-公开
标题翻译：电气条件计算装置，计算电气条件的方法，制造图像形成装置的方法，信息处理程序和记录介质
公开(公告)号：JP2009251467A
公开(公告)日：2009-10-29
申请号：JP2008101839
申请日：2008-04-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KADONAGA MASAFUMI
IPC分类号： G03G21/00
摘要： PROBLEM TO BE SOLVED: To easily perform calculation with high accuracy in a method of calculating an electrical condition that affects a developer existing in an electrophotographic image forming apparatus. SOLUTION: An electrical condition calculating apparatus, which calculates the electrical condition, includes: a condition information-acquiring unit 101 for acquiring condition information; and a toner electric field-calculating unit 102 for calculating the electrical condition based on a plurality of mirror image charges induced in a metal electrode 202 in accordance with the charge of toner particles Q, in a system including an air having the toner particles Q, dielectrics 201 and the metal electrode 202. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：在计算影响电子照相图像形成装置中存在的显影剂的电气条件的方法中，可以高精度地容易地进行计算。解决方案：一种计算电气条件的电气条件计算装置，包括：条件信息获取单元101，用于获取状态信息; 以及调色剂电场计算单元102，用于在包括具有调色剂颗粒Q的空气的系统中根据调色剂颗粒Q的电荷计算基于在金属电极202中感应的多个镜像电荷的电气条件，电介质201和金属电极202.（C）2010，JPO＆INPIT

7. 发明专利

JP2009080045A Discharge analyzer, discharge analysis method, and electrophotographic transfer process analyzer 审中-公开
标题翻译：放电分析仪，放电分析方法和电子显微镜转印分析仪
公开(公告)号：JP2009080045A
公开(公告)日：2009-04-16
申请号：JP2007250106
申请日：2007-09-26
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KADONAGA MASAFUMI
IPC分类号： G01N27/60 , G03G15/14
摘要： PROBLEM TO BE SOLVED: To provide a discharge analysis method having a three-dimensional calculation model replicating a phenomenon further close to realty by reviewing a discharge start determination criteria and a moving charge amount calculation model by discharge; a discharge analyzer; and an electrophotographic transfer process analyzer using it.
SOLUTION: An overall control part is composed so as analyze a transfer process, by comprising: a first electric field calculation part 12; a discharge determination pre-processing part 13; a discharge start determination part 14; a moving charge amount calculation part 15; a discharge charge arrangement part 16, a second electric field calculation part 17, and a toner behavior analysis part 18.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有三维计算模型的放电分析方法，该三维计算模型通过放电检查放电开始判定标准和移动充电量计算模型来复制更接近于现实的现象; 放电分析仪; 和使用它的电子转印处理分析仪。解决方案：整体控制部分被构成为分析传送过程，包括：第一电场计算部分12; 放电判定预处理部13; 放电开始判定部14; 移动计费量计算部15; 放电电荷排列部分16，第二电场计算部分17和调色剂行为分析部分18.版权所有：（C）2009，JPO＆INPIT

8. 发明专利

JP2008139337A Discharge irregularity observation method, discharge irregularity observation device, method of measuring resistance, measuring device and image forming apparatus 审中-公开
标题翻译：放电非正规观察方法，放电非正常观察装置，测量电阻的方法，测量装置和图像形成装置
公开(公告)号：JP2008139337A
公开(公告)日：2008-06-19
申请号：JP2006322589
申请日：2006-11-29
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： USAMI MOTOHIRO , AOKI SHINJI , KADONAGA MASAFUMI , SEYA KEIICHI , KONDO HIROSHI
IPC分类号： G03G15/16 , G01R27/02 , G03G15/02
摘要： PROBLEM TO BE SOLVED: To provide a discharge irregularity observation method for obtaining a member making use of discharge or an electrifying phenomenon by the discharging which is developed on the basis of knowledge obtained by measuring microscopic electrical property and in which no irregularity in density or a void occurs. SOLUTION: The discharge irregularity observation device is provided with a transparent electrode substrate 7 with a semi-transparent or transparent electrode 2 on a surface facing a roller member 1 installed so that an electrode surface can be brought into contact with or separated from the roller member surface. Then, a potential difference is provided between the transparent electrode substrate 7 and a metal core of the roller. Discharge light occurring due to the potential difference provided between the transparent electrode substrate 7 and the roller member 1 is photographed by a photographic device 3 installed on a back side of the transparent electrode substrate and the discharge irregularities occurring in the roller member are observed. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种放电不规则观察方法，用于通过基于通过测量微电学特性获得的知识而开发的放电获得使用放电的元件或充电现象，并且其中不存在不规则性发生密度或空白。解决方案：排出不规则性观察装置在与辊构件1相对的表面上设置有具有半透明或透明电极2的透明电极基板7，所述表面安装成使得电极表面可以与电极表面接触或分离滚子构件表面。然后，在透明电极基板7和辊的金属芯之间设置有电位差。通过安装在透明电极基板的背面的照相装置3拍摄由于透明电极基板7和滚筒部件1之间的电位差而产生的放电光，并观察到在滚子部件中发生的排出凹凸。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2005099698A Image forming apparatus and process cartridge for the same 审中-公开
标题翻译：图像形成装置及其相同的处理盒
公开(公告)号：JP2005099698A
公开(公告)日：2005-04-14
申请号：JP2004142121
申请日：2004-05-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NIIMI TATSUYA , KADONAGA MASAFUMI
IPC分类号： G03G21/00 , G03G5/00 , G03G5/06 , G03G5/07 , G03G5/14 , G03G5/147 , G03G15/02
摘要： PROBLEM TO BE SOLVED: To suppress friction amount reduction of a photoreceptor, while securing electrification uniformity in the repeated use of the photoreceptor. SOLUTION: An electrophotographic device comprises at least an electrification means, an exposure means, a development means, a transfer means and an electrophotographic photoreceptor. The electrification member used for the electrification means is a roller shaped electrification member arranged near to the photoreceptor. An image forming apparatus applies voltage superposing alternating-current voltage on direct-current voltage in the electrification member in a condition that a total amount of energy, having charge particles colliding the photoreceptor during electrification in an electrification nip, satisfies 1.4×10 -4 ≤ the total amount of energy having charge particles/photoreceptor circumferential length (J/m 2 mm)≤6.0×10 -4 , and has a mechanism for supplying an electrification hazard absorption agent to the surface of the photoreceptor. Electrification is performed under the condition that, from among the charge particles, the total amount of energy having the charge particles, having kinetic energy of 3×10 -19 (J) or larger, satisfies the total amount of energy of 1.2×10 -4 ≤3×10 -19 (J) or larger, having charge particles/photoreceptor circumferential length of (J/m 2 mm)≤4.8×10 -4 . COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了抑制感光体的摩擦量减少，同时确保反复使用感光体时的带电均匀性。解决方案：电子照相装置至少包括带电装置，曝光装置，显影装置，转印装置和电子照相感光体。用于带电装置的带电构件是布置在感光体附近的辊状带电构件。图像形成装置在带电部件的直流电压下施加电压叠加交流电压，其中带电粒子在带电压区中通电期间与感光体相撞的能量的总量满足1.4×10 -4 ≤具有带电粒子/感光体周长的能量的总量（J / m 2 mm）≤6.0×10 -4 ，并且具有将电气化危害吸收剂供给到感光体的表面的机构。在充电粒子之间，具有3×10 -19 （J）以上的动能的带电粒子的总能量的条件下进行通电，满足总量的电荷粒子/感光体圆周长度为（J / m 2）的1.2×10 -4 ≤3×10 -19 （J）毫米）≤4.8×10 -4 。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2005099694A Image forming apparatus and process cartridge for the same 审中-公开
标题翻译：图像形成装置及其相同的处理盒
公开(公告)号：JP2005099694A
公开(公告)日：2005-04-14
申请号：JP2004141995
申请日：2004-05-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NIIMI TATSUYA , KADONAGA MASAFUMI
IPC分类号： G03G9/08 , G03G5/00 , G03G5/06 , G03G5/07 , G03G5/10 , G03G5/14 , G03G5/147 , G03G9/09 , G03G15/02
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus for forming a stable image, even when performing repeated use for suppressing friction amount reduction of a photoreceptor, while securing electrification uniformity by taking into considering account electrification hazard in the repeated use of the photoreceptor. SOLUTION: An electrophotographic device comprises at least an electrifying means, an exposure means, a development means, a transfer means and an electrophotographic photoreceptor. An electrifying member used for the electrifying means is a roller shaped electrifying member arranged near the photoreceptor. The electrophotographic photoreceptor is a photoreceptor performing electrification, by applying a voltage superposing a alternating voltage on a direct current voltage to the electrifying member. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种用于形成稳定图像的图像形成装置，即使在重复使用以抑制感光体的摩擦量减少的同时，通过考虑到重复使用中的电气化危险来确保充电均匀性感光体。解决方案：电子照相装置至少包括充电装置，曝光装置，显影装置，转印装置和电子照相感光体。用于带电装置的带电构件是布置在感光体附近的辊状带电构件。电子照相感光体是通过向交流构件施加将交流电压叠加在直流电压上的电压而进行充电的感光体。版权所有（C）2005，JPO＆NCIPI

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