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1. 发明专利

JP2014235137A 透磁率検知器、現像装置有权
标题翻译：磁性渗透性检测器和开发设备
公开(公告)号：JP2014235137A
公开(公告)日：2014-12-15
申请号：JP2013118324
申请日：2013-06-04
申请人：株式会社リコー , Ricoh Co Ltd
发明人： HOSOKAWA HIROSHI , KATO SHUNJI , HIROTA TETSUO , YAMANE MASAYUKI , WATABE MASAHIRO
IPC分类号： G01N27/72 , G01R33/12 , G03G15/08
摘要：【課題】基板上に平面パターンによって形成されたコイルを含むLC発振回路から所定空間の透磁率に応じて出力される信号の周波数に基づいて上記所定空間の透磁率を検知する透磁率検知器において、上記コイルを保護すること。【解決手段】所定空間の透磁率に応じた周波数の信号を出力する透磁率検知器であって、基板上に平面パターンによって形成され、前記所定空間の透磁率によってインダクタンスが変化するコイルと、前記コイルと共振電流ループを構成するように接続されたコンデンサと、前記共振電流ループの一部の電位に応じた信号を出力する出力端子と、前記基板上において前記コイルが形成されている範囲を覆うように設けられ、前記コイルの形成面が前記所定空間に対向した状態で前記透磁率検知器を固定するための接着層と、を含む。【選択図】図10
摘要翻译：要解决的问题：提供一种磁导率检测器，其根据从包括在基板上形成的线圈的LC振荡电路输出的信号的频率，根据所述磁导率检测器确定预定空间的磁导率预定的空间，并保护线圈。解决方案：提供一种磁导率检测器，其输出具有根据预定空间的磁导率的频率的信号，并且包括以平面图形形成在基板上的线圈和电感其根据预定空间的磁导率而变化，与线圈连接以构成谐振电流回路的电容器，根据谐振电流回路的一部分的电位输出信号的输出端子，以及粘合层，其被设置成覆盖形成线圈的基板上的范围，并固定磁导率检测器w 线圈形成表面与预定空间相对布置。

2. 发明专利

JP2013083718A Development apparatus and image forming apparatus including the same 审中-公开
标题翻译：发展设备和图像形成装置，包括它们
公开(公告)号：JP2013083718A
公开(公告)日：2013-05-09
申请号：JP2011222037
申请日：2011-10-06
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKI HIDEYASU , ISHII YASUYUKI , KOSUGI HIDEKI , HIROTA TETSUO , YAMADA MASAAKI , KUROKAWA ATSUSHI
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To stabilize toner amount per unit area to be supplied to a development area by a method with a little stress given to toner.SOLUTION: In a development apparatus, an electric field for causing the toner to hop is formed on an outer peripheral surface of a toner carrier roller 2 by applying voltage different from each other to an inside electrode 3a and an outside electrode 4a provided in a toner carrier, respectively. In the development apparatus, unevenness is distributed in a toner carrier area on the outer peripheral surface of the toner carrier roller 2, a regulation blade 23 is provided to abut on a protrusion 6b on the outer peripheral surface of the toner carrier roller 2 on a toner carrier roller rotating direction upstream side in the development area, and the toner in a recess 6a is passed while preventing passing of the toner on the protrusion 6b, of the toner carried on the outer peripheral surface of the toner carrier roller 2.
摘要翻译：要解决的问题：通过少量施加于调色剂的应力的方法来稳定供给显影区域的每单位面积的调色剂量。解决方案：在显影装置中，通过向内部电极3a和外部电极4a施加彼此不同的电压，在调色剂承载辊2的外周表面上形成用于使调色剂跳跃的电场分别在调色剂载体中。在显影装置中，不均匀性分布在调色剂承载辊2的外周面上的调色剂载体区域中，调节片23设置成与调色剂承载辊2的外周面上的突起6b抵接在调色剂承载辊在显影区域中旋转方向上游侧，并且凹部6a中的调色剂通过，同时防止调色剂在调色剂承载辊2的外周表面上承载的调色剂在突起6b上。
版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2012113058A Developer carrier, developing device, image forming apparatus, and process unit 有权
标题翻译：开发商运营商，开发设备，图像形成设备和处理单元
公开(公告)号：JP2012113058A
公开(公告)日：2012-06-14
申请号：JP2010260452
申请日：2010-11-22
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMADA MASAAKI , ISHII YASUYUKI , KOSUGI HIDEKI , HIROTA TETSUO , KUROKAWA ATSUSHI , SEKI HIDEYASU
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of pattern failures, when a large number of electrode patterns are formed, in a developer carrier having a plurality of electrodes to which voltages different from each other are applied.SOLUTION: A toner carrying roller 2 comprises a metallic thin-walled tube electrode member 10a and a roller base material 9. The metallic thin-walled tube electrode member 10a includes an inner electrode 3a comprising a metallic thin-walled tube 10 and a comb-shaped outer electrode 4a to which the voltage different from the voltage applied to the inner electrode 3a is applied. An insulator layer 5 insulating between the inner electrode 3a and the outer electrode 4a is provided between the inner electrode 3a and the outer electrode 4a, and a surface layer 6 covering the outer circumferential surface side of the outer electrode 4a is also provided in the metallic thin-walled tube electrode member 10a. In other words, the toner carrying roller 2 has a five-layer structure of the roller base material 9, the inner electrode 3a (metallic thin-walled tube 10), the insulator layer 5, the outer electrode 4a, and the surface layer 6 in order from the inner circumferential side. The inner electrode 3a comprises a seamless metallic thin-walled tube 10 of 0.05 to 0.2 mm.
摘要翻译：要解决的问题为了防止图案故障的发生，当形成多个电极图形时，在具有彼此电压不同的多个电极的显影剂载体中。调色剂承载辊2包括金属薄壁管电极构件10a和辊基材9.金属薄壁管电极构件10a包括内电极3a，内电极3a包括金属薄壁管10和施加与施加到内部电极3a的电压不同的电压的梳状外部电极4a。在内部电极3a和外部电极4a之间设置绝缘层5，内部电极3a和外部电极4a之间绝缘，并且覆盖外部电极4a的外周面侧的表面层6也设置在金属薄壁管电极部件10a。换句话说，调色剂承载辊2具有辊基材9，内电极3a（金属薄壁管10），绝缘体层5，外电极4a和表面层6的五层结构从内周侧开始。内部电极3a包括0.05〜0.2mm的无缝金属薄壁管10。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2012078781A Image forming device 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2012078781A
公开(公告)日：2012-04-19
申请号：JP2011125383
申请日：2011-06-03
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ISHIKURA YUJI , ISHII YASUYUKI , KOSUGI HIDEKI , HIROTA TETSUO , YAMADA MASAAKI , OGAWA YOSHIKO , KUROKAWA ATSUSHI , SEKI HIDEYASU , HORIIE MASANORI , KAYAHARA SHIN
IPC分类号： G03G15/06 , G03G15/00 , G03G15/08
CPC分类号： G03G15/0131 , G03G15/0189 , G03G15/1605
摘要： PROBLEM TO BE SOLVED: To provide an image forming device capable of discharging toner from a toner carrier to a latent image carrier while suppressing dielectric breakdown of an insulation layer.SOLUTION: An image forming device includes: a latent image carrier; latent image writing means for writing a latent image on the latent image carrier; a toner carrier including plural electrodes which are provided along a toner carrying surface and are in an insulated state from each other by an insulation member; voltage application means for applying voltages to the plural electrodes; developing means for developing a latent image by causing the toner to adhere to the latent image on the latent image carrier while causing the toner to hop by an electrical field formed by a potential difference between the plural electrodes; and transfer means for transferring the toner image on the latent image carrier to a transfer body. In the image forming device, a discharge mode is provided for discharging the toner on the toner carrier to the latent image carrier by applying a alternating voltage to each of the plural electrodes, the alternating voltage having the same phase and amplitude and generating an electric field between the latent image carrier and the toner carrier that cases the toner to fly from the toner carrier toward the latent image carrier.
摘要翻译：要解决的问题：提供一种能够将调色剂从调色剂载体排出到潜像载体上的图像形成装置，同时抑制绝缘层的电介质击穿。解决方案：图像形成装置包括：潜像载体; 用于将潜像写入潜像载体上的潜像写入装置; 调色剂载体，其包括沿着调色剂承载表面设置并且通过绝缘构件彼此处于绝缘状态的多个电极; 电压施加装置，用于向所述多个电极施加电压; 显影装置，用于通过使调色剂附着在潜像载体上的潜像上，同时使调色剂由由多个电极之间的电位差形成的电场跳变而使潜像显影; 以及用于将潜像载体上的调色剂图像转印到转印体上的转印装置。在图像形成装置中，提供放电模式，用于通过向多个电极中的每一个施加交流电压，将具有相同和振幅相同的交变电压并且产生电场来将调色剂载体上的调色剂排放到潜像载体上在潜像载体和调色剂载体之间，使得调色剂从调色剂载体向潜像载体飞行。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2012058592A Development device, image forming apparatus and process cartridge 审中-公开
标题翻译：开发设备，图像形成装置和处理盒
公开(公告)号：JP2012058592A
公开(公告)日：2012-03-22
申请号：JP2010203222
申请日：2010-09-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUROKAWA ATSUSHI , ISHII YASUYUKI , KOSUGI HIDEKI , YAMADA MASAAKI , SEKI HIDEYASU , HIROTA TETSUO
IPC分类号： G03G15/08
摘要： PROBLEM TO BE SOLVED: To suppress the occurrence of a situation where toner in an amount larger than a target amount passes through a regulation part, without heightening regulating pressure, in a development device using a flare developing system.SOLUTION: The development device using a flare developing system comprises a regulation blade 43 which is provided on the upstream side in the moving direction of an outer peripheral surface of a toner carrier roller 41 relative to a development area and on the downstream side in the moving direction of the outer peripheral surface of the toner carrier roller relative to a toner supply position by a toner supply roller 42, and which is provided facing the outer peripheral surface of the toner carrier roller in a contact or non-contact state. A movement inhibiting blade 48 is provided at a position where toner moves toward a regulation part A between the regulation blade and the outer peripheral surface of the toner carrier roller if the toner movement inhibiting member does not exist, serving as the toner movement inhibiting member for inhibiting a movement of the toner to the regulation part A.
摘要翻译：要解决的问题：为了抑制在使用火炬展开系统的显影装置中发生大于目标量的调色剂通过调节部分而不增加调节压力的情况。解决方案：使用火炬展开系统的显影装置包括调节刮板43，调节刮板43设置在相对于显影区域的调色剂承载辊41的外周表面的移动方向的上游侧，并且在下游侧在调色剂承载辊的外周面相对于由调色剂供给辊42调色剂供给位置的移动方向上，以与接触或非接触状态相对的调色剂承载辊的外周面设置。如果调色剂运动禁止构件不存在，则调色剂在调节片和调色剂承载辊的外周面之间朝向调节部分A移动的位置处设置有运动抑制片48，抑制调色剂向调节部分A的运动。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2010214723A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2010214723A
公开(公告)日：2010-09-30
申请号：JP2009063204
申请日：2009-03-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAYAHARA SHIN , ENDO OSAMU , TAKAHASHI TOMOKO , HORIIE MASANORI , HIROTA TETSUO
IPC分类号： B41J2/385 , G03G15/05
摘要： PROBLEM TO BE SOLVED: To provide a hopping direct recording type image forming apparatus reducing image density unevenness compared with the prior art.
SOLUTION: Positions near through-holes 14Y comparatively long in distance to the curved surface of a cylinder part 31Y in a toner carrying sleeve out of a plurality of through-holes 14Y in a circuit substrate 10Y, within a space between the curved surface and the circuit substrate 10Y, are provided with thickening electrodes 13Y for increasing the thickness of a floating toner layer L
t , and thickening power sources 92Y for increasing the thickness of the floating toner layer L
t by applying, to the thickening electrodes 13Y, a thickening periodic pulse voltage which serves as average potential of a larger value on the opposite polarity side to the charging polarity of toner than average potential per unit time of a hopping periodic pulse voltage.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种与现有技术相比降低图像浓度不均匀性的跳频直接记录型图像形成装置。解决方案：在电路基板10Y中的多个通孔14Y中的调色剂承载套筒中的圆筒部分31Y的弯曲表面的距离相对较长的通孔14Y附近，位于弯曲的表面和电路基板10Y设置有用于增加浮动调色剂层L 的厚度的增厚电极13Y，以及用于增加浮动调色剂层L 的厚度的增厚电源92Y，通过向增稠电极13Y施加增厚的周期性脉冲电压，该增厚周期性脉冲电压在与调谐周期脉冲的每单位时间的平均电位相比，在与调色剂的充电极性相反的极性侧上具有较大值的平均电位电压。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2010113376A Toner concentration sensor and image forming apparatus including the same 审中-公开
标题翻译：调色剂浓度传感器和图像形成装置，包括它们
公开(公告)号：JP2010113376A
公开(公告)日：2010-05-20
申请号：JP2010026961
申请日：2010-02-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAWAYAMA NOBORU , IKEGAMI KAYOKO , HIROTA TETSUO
IPC分类号： G03G21/00 , G03G15/08 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus where control voltage is not updated even when a serviceman carries out an exchange initializing operation mode again. SOLUTION: The control voltage to control output voltage when toner concentration (5%) of developer stored in an initial developer container is detected by a standard toner concentration sensor to be reference output voltage (3V) is stored in advance as reference control voltage. In the exchange initializing operation mode, when the control voltage adjusted so that the output voltage obtained from the toner concentration sensor by detecting the toner concentration may be the reference output voltage (3V) stored in advance is within ±1V of the reference control voltage, the control voltage is updated. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供即使在维修人员再次执行交换初始化操作模式时也不更新控制电压的图像形成装置。
解决方案：预先存储在初始显影剂容器中的显影剂浓度（5％）的标准调色剂浓度传感器检测为参考输出电压（3V）时控制输出电压的控制电压作为参考控制电压。在交换初始化操作模式中，当调节控制电压使得通过检测调色剂浓度从调色剂浓度传感器获得的输出电压可以是预先存储的参考输出电压（3V）在参考控制电压的±1V内时，控制电压更新。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2008090325A Image forming apparatus and its electrifying/developing control method 审中-公开
标题翻译：图像形成装置及其电气/开发控制方法
公开(公告)号：JP2008090325A
公开(公告)日：2008-04-17
申请号：JP2007318536
申请日：2007-12-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HIROTA TETSUO , ENDO HIDENOBU , KIMURA TETSUYA
IPC分类号： G03G15/02
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus equipped with a plurality of photoreceptor drums 5, electrifying rollers and developing rollers, which restrains noise from being made when electrification and development are performed by applying alternating voltage to the electrifying rollers and the developing rollers.
SOLUTION: When the number of pairs of photoreceptor drums 5 and the electrifying rollers 14, and the developing rollers 101 is m (four in example shown by figure), the alternating voltage for developing bias Vd
0 , Vd
1 , Vd
2 and Vd
3 having the same frequency and phase are generated by m high-voltage amplifiers 76 to 79 based on respective alternating signals including the oscillation signal (fo) of an oscillator 70, and individually applied to the respective developing rollers 101. Then, the alternating voltage for electrification Vc
0 , Vc
1 , Vc
2 and Vc
3 having phase shifted by 2π/m are generated by m-1 shift circuits 75 and m high-voltage amplifiers 71 to 74 from a frequency division signal fc' obtained by frequency-dividing the oscillation signal (fo) to 1/n by a frequency divider circuit 81, and individually applied to the respective electrifying rollers 14.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像形成装置，其配备有多个感光鼓5，带电辊和显影辊，其通过向通电辊施加交流电压来限制通电和显影时产生的噪声，显影辊。解决方案：当感光鼓5和充电辊14和显影辊101的对数为m（示例中为四个）时，显影偏压Vd 0 1 ，Vd 2 和Vd 3 由m个高压放大器76至79基于各个交替信号包括振荡器70的振荡信号（fo），并分别施加到各个显影辊101.然后，充电用交流电压Vc 0 ，Vc 1 2 和Vc 3 由分频器的m-1个移位电路75和m个高压放大器71至74产生通过分频电路81将振荡信号（fo）分频为1 / n而获得的信号fc'，并分别施加到相应的带电辊14.版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007149032A Rfid system and image forming apparatus 有权
标题翻译： RFID系统和图像形成装置
公开(公告)号：JP2007149032A
公开(公告)日：2007-06-14
申请号：JP2005346239
申请日：2005-11-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HIROTA TETSUO
IPC分类号： G06K17/00 , G03G15/08 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To eliminate superposition of external noise, to suppress assembly man hour in an assembly line of a manufacturing plant to reduce costs when communication by radio is performed between a loop antenna and an RFID tag. SOLUTION: An antenna 13 for communication with the RFID tag is provided on an RFID-R/W board 12 and when a GND pattern 31 exists near the antenna 13, a gap part 32 is made to exist between the GND patter 31 around the antenna 13. When a short side of the antenna 13 is considered as (a) and a long side of the antenna 13 is considered as b, the gap part 32 is set so that a gap between the antenna 13 formed like a loop and surrounding GND pattern 31 becomes (1/2)a or more. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了消除外部噪声的叠加，在环形天线和RFID标签之间进行无线电通信时，抑制制造工厂的装配线中的组装人员时间，以降低成本。解决方案：用于与RFID标签通信的天线13设置在RFID-R / W板12上，并且当在天线13附近存在GND图案31时，间隙部分32存在于GND图案31 在天线13的短边被认为是（a）并且天线13的长边被认为是b的情况下，间隙部分32被设置为使天线13之间的间隙形成为环并且周围的GND图案31变为（1/2）a以上。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2013221994A Discharge detection circuit, developing device, charging device, and image forming apparatus 有权
标题翻译：放电检测电路，开发装置，充电装置和图像形成装置
公开(公告)号：JP2013221994A
公开(公告)日：2013-10-28
申请号：JP2012092208
申请日：2012-04-13
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HIROTA TETSUO
IPC分类号： G03G21/00 , G03G15/02 , G03G15/08
摘要： PROBLEM TO BE SOLVED: To provide a discharge detection circuit capable of achieving a reduction in power consumption, and contributing to energy saving of an image forming apparatus.SOLUTION: A discharge detection circuit 20A includes: a high-voltage insulating cable 24 that connects a high-voltage output terminal 22a of a high-output transformer 22 as a high-voltage power source, with a developing roller 42 of a developing device; a pulse transformer 26 that is provided with a core 32 in a closed loop shape; a rectification circuit 28 that rectifies a secondary voltage obtained from electromagnetic induction between primary winding and secondary winding of the pulse transformer 26; and a smoothing circuit 30 that smooths output from the rectification circuit 28. The primary winding of the pulse transformer 26 is formed by penetrating the high-voltage insulating cable 24 into the core 32, and the secondary winding is formed by winding low-voltage insulating enameled electric wire 25 as low-voltage insulating electric wire around the core 32 by a predetermined number of times. A development gap g as a minute gap is set between a photoreceptor 2 and the developing roller 42.
摘要翻译：要解决的问题：提供能够实现功率消耗降低并且有助于图像形成装置的节能的放电检测电路。解决方案：放电检测电路20A包括：高压绝缘电缆24，其连接作为高压电源的高输出变压器22的高电压输出端子22a，具有显影装置的显影辊42; 设置有闭环形状的芯32的脉冲变压器26; 整流电路28，对从脉冲变压器26的初级绕组和次级绕组之间的电磁感应得到的次级电压进行整流; 以及使整流电路28的输出平滑的平滑电路30.脉冲变压器26的初级绕组通过将高压绝缘电缆24穿入芯32而形成，次级绕组通过将低压绝缘漆包线25作为围绕芯32的预定次数的低压绝缘电线。在感光体2和显影辊42之间设置微小的间隙g。

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