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1. 发明专利

JP2012185471A Rolling mechanism drive unit, image formation unit, rolling mechanism control program, rolling mechanism drive system, and image formation system 有权
标题翻译：滚动机构驱动单元，图像形成单元，滚动机构控制程序，滚动机构驱动系统和图像形成系统
公开(公告)号：JP2012185471A
公开(公告)日：2012-09-27
申请号：JP2011204825
申请日：2011-09-20
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ASANO YOSHIHIRO , KOIKE TAKANAO
IPC分类号： G03G15/00 , F16H13/02 , G03G21/00
CPC分类号： G03G15/757 , F16D2500/10487 , F16D2500/30406 , F16D2500/5108 , F16H57/01 , F16H2057/018 , F16H2059/465 , G03G21/1647 , G03G2221/1639 , G03G2221/1642
摘要： PROBLEM TO BE SOLVED: To provide a rolling mechanism drive unit, an image formation unit, a rolling mechanism control program, and a rolling mechanism drive system capable of determining one of a power transmission mechanism and a rolling mechanism in which an abnormality has occurred.SOLUTION: A rolling mechanism drive unit includes: a power transmission mechanism to output input torque via a viscous fluid; a detection part to detect the rotation amount of an input shaft of the power transmission mechanism; a detection part to detect the rotation amount of an output shaft of the power transmission mechanism; an input torque detection part to detect the input torque from the power transmission mechanism; a slip amount calculation part to calculate the slip amount of the output shaft of the power transmission mechanism relative to the input shaft on the basis of the difference between the rotation amounts of the input shaft and the output shaft; a first abnormality determination part to compare the input torque detected by the input torque detection part with a standard torque and determine the presence or absence of an abnormality in a rolling mechanism connected at an output side of the power transmission mechanism; and a second abnormality determination part to compare the slip amount calculated by the slip amount calculation part with a standard slip amount and determine the presence or absence of an abnormality in the power transmission mechanism.
摘要翻译：要解决的问题：提供一种能够确定动力传递机构和滚动机构之一的滚动机构驱动单元，图像形成单元，滚动机构控制程序和滚动机构驱动系统，其中异常已经发生了。解决方案：滚动机构驱动单元包括：通过粘性流体输出输入扭矩的动力传递机构; 检测动力传递机构的输入轴的旋转量的检测部; 检测动力传递机构的输出轴的旋转量的检测部; 输入转矩检测部，其检测来自所述动力传递机构的输入转矩; 滑移量计算部，其基于输入轴和输出轴的旋转量之差来计算动力传递机构的输出轴相对于输入轴的滑移量; 第一异常判定部，将由输入转矩检测部检测出的输入转矩与标准转矩进行比较，判断在动力传递机构的输出侧连接的滚动机构是否存在异常; 以及第二异常确定部分，用于将由滑移量计算部分计算的滑移量与标准滑移量进行比较，并确定动力传递机构中是否存在异常。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2011059460A Medium conveying device and image forming apparatus 审中-公开
标题翻译：中等输送装置和图像形成装置
公开(公告)号：JP2011059460A
公开(公告)日：2011-03-24
申请号：JP2009210044
申请日：2009-09-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ASANO YOSHIHIRO , KOIKE TAKANAO
IPC分类号： G03G15/00 , B65H7/14
摘要： PROBLEM TO BE SOLVED: To provide a medium conveying device configured to accurately detect the conveying position of a medium to be conveyed, and to provide an image forming apparatus. SOLUTION: In the image forming apparatus 1, a registration part 25 is disposed on this side of a secondary transfer roller part 26 in the paper conveying direction. In the registration part 25, a lower registration roller 25a and an upper registration roller 25b configured to convey the paper P while sandwiching the paper P therebetween are disposed facing each other. The upper registration roller 25b is divided into two roller parts 25ba and 25bb with a prescribed interval therebetween in the axial direction, and a registration sensor 25h, whose detecting position is the vicinity on the paper P sandwiching line formed by the roller part 25aa of the lower registration roller 25a and the roller parts 25ba and 25bb, is disposed between the roller part 25ba and the roller part 25bb. The registration sensor 25h is configured to detect the leading end of the paper P sandwiched and conveyed by the roller part 25aa and the roller parts 25ba and 25bb. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种配置成精确地检测被输送介质的输送位置的介质输送装置，并提供图像形成装置。解决方案：在图像形成装置1中，在纸张传送方向上的二次转印辊部分26的该侧上设置有配准部分25。在配准部25中，配置成在将纸张P夹在其间的同时传送纸P的下定位辊25a和上定位辊25b相对配置。上部定位辊25b在轴向上以规定的间隔分成两个辊部25ba和25bb，并且其检测位置在纸张P夹持线附近的对位传感器25h由纸张P的夹持线25aa 下部定位辊25a和辊部25ba和25bb设置在辊部25ba和辊部25bb之间。配准传感器25h被配置为检测由辊部分25aa和辊部分25ba和25bb夹持和传送的纸张P的前端。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2014211475A 画像形成装置、画像形成装置の制御方法及び制御プログラム有权
标题翻译：图像形成装置，其控制方法和控制程序
公开(公告)号：JP2014211475A
公开(公告)日：2014-11-13
申请号：JP2013086574
申请日：2013-04-17
申请人：株式会社リコー , Ricoh Co Ltd
发明人： ASANO YOSHIHIRO
IPC分类号： G03G21/00 , G03G15/16 , G03G21/14
CPC分类号： G03G15/161 , G03G15/167
摘要：【課題】用紙搬送に不具合が発生した場合において、現像された画像を保持する保持体に対向する部品への顕色剤の付着を防ぐこと。【解決手段】出力するべき画像を識別する画像IDを取得して記憶させると共に出力するべき画像のうち、搬送に不具合が生じた用紙に出力されるべき画像を識別する回避画像IDを取得して記憶させる接離情報記憶部201と、トナー画像が転写部104に到達するタイミングを判断するためのトリガ信号を取得するタイミング生成部202と、トリガ信号の取得に応じて、転写部に到達するトナー画像の用紙搬送に不具合が生じているか否かを判断する接離判定部203と、用紙搬送に不具合が生じている場合転写部104の接離機構を制御する制御信号出力部205とを含むことを特徴とする。【選択図】図6
摘要翻译：要解决的问题：当片材输送失败时，防止显影剂粘附到面对保持显影图像的保持体的部件。解决方案：图像形成装置包括：接触/分离信息存储单元201，其获取并存储图像ID 用于识别要输出的图像，并且获取并存储要输出的图像的用于识别待输出的图像的回避图像ID; 定时生成单元202，其获取当调色剂图像到达转印单元104时确定定时的触发信号; 接触/分离确定单元203，其响应于获取触发信号，确定到达传送单元的调色剂图像的纸张传送是否失败; 以及控制信号输出单元205，其在片材输送失败时控制转印单元104的接触/分离机构。

4. 发明专利

JP2011186125A Image forming apparatus, conveying device, and program 有权
标题翻译：图像形成装置，输送装置和程序
公开(公告)号：JP2011186125A
公开(公告)日：2011-09-22
申请号：JP2010050404
申请日：2010-03-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ASANO YOSHIHIRO , WATABIKI TATSUYA , KOIKE TAKANAO
IPC分类号： G03G21/00 , B65H7/02 , G01R31/00
摘要： PROBLEM TO BE SOLVED: To more accurately predict a failure, without increasing a processing load.
SOLUTION: An image forming apparatus includes: a data accepting part 101 accepting time series data changed according to the states of parts from each of the plurality of parts; a frequency analysis part 102 frequency-analyzing the time series data with set frequency resolution, for a set frequency band and producing an analysis result in each frequency; an abnormal state determination part 103 comparing the analysis result with a previously set determination reference value and determining the abnormality of the parts based on the comparison result; and a frequency analysis condition setting part 104 increasing the frequency resolution and excepting the frequency higher than the frequency of such an analysis result that it is determined that the parts have abnormality, to restrict the frequency band, when it is determined that the parts have abnormality.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了更准确地预测故障，而不增加处理负载。解决方案：图像形成装置包括：数据接收部分101，接受根据来自多个部分中的每个部分的状态的变化的时间序列数据; 频率分析部102对设定的频带对设定的频率分辨率的时间序列数据进行频谱分析，并生成各频率的分析结果; 异常状态判定部103将分析结果与预先设定的判定基准值进行比较，并根据比较结果确定部分的异常; 以及频率分析条件设定部分104，当确定部件具有异常时，增加频率分辨率并且除了高于确定部件具有异常的分析结果的频率之外的频率，以限制频带。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2013136454A Sheet conveying device, image forming apparatus, sheet thickness detection system, and sheet thickness detection program 有权
标题翻译：薄板输送装置，图像形成装置，薄片厚度检测系统和薄片厚度检测程序
公开(公告)号：JP2013136454A
公开(公告)日：2013-07-11
申请号：JP2012248644
申请日：2012-11-12
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ASANO YOSHIHIRO , TAKAHASHI MINORU , KOIKE TAKANAO
IPC分类号： B65H7/02 , B65H5/06
CPC分类号： B65H43/00 , B65H2220/09 , B65H2404/14 , B65H2511/13 , B65H2513/10 , B65H2553/51 , B65H2801/06 , B65H2220/03 , B65H2220/01 , B65H2220/11
摘要： PROBLEM TO BE SOLVED: To detect a sheet thickness by a simple configuration using a sheet conveying mechanism.SOLUTION: A sheet conveying device includes a conveying roller arranged at an inner peripheral side of a curved portion of a conveying path of a sheet; a driving means for rotating and driving the conveying roller; a drive control means for controlling a rotation speed of the conveying roller by the driving means; a rotation speed detection means for detecting the rotation speed of the conveying roller; a conveying means for conveying the sheet while being laid across between the conveying roller and itself; a conveying speed detecting means for detecting a conveying speed of the sheet; and a sheet thickness detecting means for detecting a thickness of the sheet based on the conveying speed of the sheet detected by the conveying speed detecting means, a radius of the conveying roller, and the rotation speed of the conveying roller detected by the rotation speed detecting means.
摘要翻译：要解决的问题：通过使用片材输送机构的简单结构检测片材厚度。解决方案：片材输送装置包括布置在片材的输送路径的弯曲部分的内周侧的输送辊; 用于旋转和驱动输送辊的驱动装置; 驱动控制装置，用于通过驱动装置控制输送辊的转速; 用于检测输送辊的转速的转速检测装置; 传送装置，用于在铺设在输送辊与其自身之间的同时传送纸张; 传送速度检测装置，用于检测纸张的传送速度; 以及片材厚度检测装置，用于基于由传送速度检测装置检测到的片材的传送速度，传送辊的半径和由转速检测检测到的传送辊的转速来检测片材的厚度手段。

6. 发明专利

JP2010217407A Drive controller for endless moving member, image forming apparatus, method for controlling drive of endless moving member, program, and recording medium 有权
标题翻译：用于无端移动构件的驱动控制器，图像形成装置，用于控制无端移动构件的驱动的方法，程序和记录介质
公开(公告)号：JP2010217407A
公开(公告)日：2010-09-30
申请号：JP2009062957
申请日：2009-03-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ASANO YOSHIHIRO , TAKAYAMA HIDEYUKI , KOIKE TAKANAO
IPC分类号： G03G15/01 , G03G15/16 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To correctly control the drive of an endless moving member provided with a plurality of scale marks, and to reduce a data processing amount for drive control. SOLUTION: The plurality of scale marks M on an intermediate transfer belt 10 are detected by two scale sensors 6A and 6B. While a phase difference between corresponding detection signals is calculated, a reference mark KL for one rotation of the intermediate transfer belt 10 is detected by a detection sensor 6L. A profile forming means 14 forms a profile for a pitch error of the scale marks M for one rotation of the intermediate transfer belt, correction data for a scale mark pitch is calculated from the profile, and stored. In the second and subsequent rotations of the intermediate transfer belt 10, the scale marks M are detected by one scale sensor 6A or 6B, and the moving speed of the intermediate transfer belt 10 is detected. Based on the detected moving speed of the intermediate transfer belt 10 and the correction data, the moving speed of the intermediate transfer belt 10 by the drive means 80 is feedback-controlled. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了正确地控制设置有多个刻度标记的环形移动构件的驱动，并且减少用于驱动控制的数据处理量。解决方案：中间转印带10上的多个刻度标记M由两个刻度传感器6A和6B检测。在计算出相应的检测信号之间的相位差时，通过检测传感器6L检测中间转印带10的一圈的参考标记KL。轮廓形成装置14形成用于中间转印带一次旋转的刻度标记M的螺距误差的轮廓，根据轮廓计算刻度标距的校正数据，并存储。在中间转印带10的第二次和随后的旋转中，刻度标记M由一个刻度传感器6A或6B检测，并且检测中间转印带10的移动速度。基于检测到的中间转印带10的移动速度和校正数据，通过驱动装置80对中间转印带10的移动速度进行反馈控制。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2010055069A Intermediate transfer device, image forming apparatus, and secondary transfer method for image forming apparatus 有权
标题翻译：中间传送装置，图像形成装置和图像形成装置的二次传送方法
公开(公告)号：JP2010055069A
公开(公告)日：2010-03-11
申请号：JP2009160017
申请日：2009-07-06
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： ASHIKAWA TADAKEI , ASANO YOSHIHIRO , TAKAHASHI MINORU , TAKAYAMA HIDEYUKI , KOIKE TAKANAO
IPC分类号： G03G15/16 , G03G15/01 , G03G21/14
CPC分类号： G03G15/0131 , G03G15/1605 , G03G15/167 , G03G2215/1614 , G03G2215/1623 , G03G2221/1642 , G03G2221/1654
摘要： PROBLEM TO BE SOLVED: To more securely prevent occurrence of shock jitter. SOLUTION: A control mechanism to adjust a distance (gap G) between the center 130C of a secondary transfer roller 130R and the center 119-2C of a second support roller 119-2 comprises: a control IC 130-1 in which output from an encoder 135 is inputted and which drives and controls the stepping motor 136-4 of a gap adjusting mechanism 136, and a memory 130-2. The control IC 130-1 performs speed calculation processing of a pair of conveying rollers 133 on the basis of an encoder signal (S101), and extracts the speed variation (S102). The control IC 130-1 obtains the amount of correction of the gap G of the secondary transfer part 130 on the basis of the speed variation (S103), and outputs the number of driving steps corresponding to a correction instruction value to the stepping motor of the gap adjusting mechanism 136 (S104). The gap adjusting mechanism 136 drives the stepping motor in the number of steps corresponding to the correction instruction value and adjusts the gap G by shaking the secondary transfer roller 130R with a support fulcrum as a center. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了更可靠地防止冲击抖动的发生。解决方案：用于调整二次转印辊130R的中心130C与第二支撑辊119-2的中心119-2C之间的距离（间隙G）的控制机构包括：控制IC 130-1，其中输入来自编码器135的输出，并且驱动和控制间隙调节机构136的步进电机136-4和存储器130-2。控制IC 130-1根据编码器信号进行一对传送辊133的速度计算处理（S101），并提取速度变化（S102）。控制IC 130-1基于速度变化获得二次转印部130的间隙G的校正量（S103），并将与校正指示值相对应的驱动步骤的数量输出到步进电机间隙调整机构136（S104）。间隙调节机构136以与校正指示值对应的步数驱动步进电机，并以支撑支点为中心以二次转印辊130R振动来调整间隙G. 版权所有（C）2010，JPO＆INPIT

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