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1. 发明专利

JP2010072009A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2010072009A
公开(公告)日：2010-04-02
申请号：JP2008235874
申请日：2008-09-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANIGAWARA MAKOTO , MIKI EIJI , WATANABE KYOICHI , KUWANA KOJI
IPC分类号： G03G21/00 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus in which stable suction force can be ensured in a suction device.
SOLUTION: The image forming apparatus includes: a pre-heater for preheating a web; a suction device for adsorbing the web to the pre-heater; a suction pump connected to the suction device; a dust collecting filter disposed between the suction device and the suction pump; a pressure measuring means for measuring air pressure between the dust collecting filter and the suction pump; and an informing means for displaying a warning to urge the maintenance of the dust collection filter when an output from the pressure measuring means decreases below a specific pressure value.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在抽吸装置中确保稳定的吸力的图像形成装置。解决方案：图像形成装置包括：用于预热卷材的预热器; 用于将所述幅材吸附到所述预热器的抽吸装置; 抽吸泵连接到抽吸装置; 设置在吸入装置和抽吸泵之间的集尘过滤器; 用于测量集尘过滤器和抽吸泵之间的空气压力的压力测量装置; 以及通知装置，用于当来自压力测量装置的输出降低到特定压力值以下时显示警告以促使除尘器的维护。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2011070097A Fixing unit and image forming apparatus 有权
标题翻译：固定单元和图像形成装置
公开(公告)号：JP2011070097A
公开(公告)日：2011-04-07
申请号：JP2009222899
申请日：2009-09-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANIGAWARA MAKOTO , ONOSE TSUKASA , NAKAZAWA SOICHI , SAWAHATA AKIRA , ONODERA KEN , MIZUNO MASAHIRO , KIKUCHI MUNESHI , INOUE TAKAHIRO
IPC分类号： G03G15/20
CPC分类号： G03G15/2025 , G03G2215/2093
摘要： PROBLEM TO BE SOLVED: To prevent oil from being excessively applied to transfer paper or sheet being object for fixing or to a web or a sheet carrying them. SOLUTION: The fixing unit includes: a heat roll; a backup roll; an application means 10 for applying a separation oil to a roll surface and wiping the surface; a supply means 16 for supplying the separation oil to the application means 10; a blade 17 having a leading edge 17d disposed downstream of the application means but upstream of the backup roll in the rotating direction of the heat roll and able to be brought into contact with the heat roll surface and separated therefrom; means 20, 17a, and 17c having the function of adjusting the pressing force of the leading edge 17d of the blade against the heat roll 11, and used to drive the heat roll 11 so that the leading edge 17d comes into contact with the heat roll surface and separates therefrom; and a control means 21 configured such that when fixing starts first time in long recording or a series of short recordings on a recording medium, the pressing force is gradually decreased by the driving means, thereby separating the blade 17 from the contact state. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了防止油被过度地用于转印被作为固定物体的纸或片材，或者将纸张或纸张或纸张或纸张搬运。解决方案：定影单元包括：热辊; 备份卷; 用于将分离油施加到辊表面并擦拭表面的施加装置10; 用于将分离油供应到施加装置10的供给装置16; 叶片17，其具有设置在施加装置的下游但沿着热辊的旋转方向的支承辊的上游的前缘17d，并且能够与热辊表面接触并与其分离; 具有调节刀片前缘17d对热辊11的按压力的功能的装置20,17a和17c，用于驱动热辊11，使得前缘17d与热辊接触表面并与其分离; 以及控制装置21，其被配置为使得当定影在记录介质上的长时间记录或一系列短记录中第一次开始时，通过驱动装置逐渐减小按压力，从而将刮板17从接触状态分离。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2010008726A Electrophotographic printer 有权
标题翻译：电子打印机
公开(公告)号：JP2010008726A
公开(公告)日：2010-01-14
申请号：JP2008168159
申请日：2008-06-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANIGAWARA MAKOTO , MIKI EIJI , WATANABE KYOICHI , KUWANA KOJI , SAGA YOSHITAKA
IPC分类号： G03G21/00 , G03G15/01 , G03G15/16 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To provide an electrophotographic printer for detecting image displacement during continuous printing on a web. SOLUTION: Friction between an intermediate transfer belt and a follower roller shaft during continuous printing on the web and an amount of image displacement due to variations in the thickness of the intermediate transfer belt are detected. The condition of an intermediate transfer belt is obtained from the amount of displacement, making it possible to determine whether printing is possible or not. According to the amount of displacement, an upper system is informed of warning as well as replacement time for the intermediate transfer belt. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在网上连续打印期间检测图像位移的电子照相打印机。检测在中间转印带和从动辊轴之间的摩擦在纸幅上的连续印刷期间以及由于中间转印带的厚度变化引起的图像位移量。从位移量获得中间转印带的状态，使得可以确定是否可以进行打印。根据位移量，上层系统通知中间转印带的警告以及更换时间。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2010008436A Image forming apparatus and image forming method 有权
标题翻译：图像形成装置和图像形成方法
公开(公告)号：JP2010008436A
公开(公告)日：2010-01-14
申请号：JP2008157094
申请日：2008-06-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： MONMA SUSUMU , KOBAYASHI SHINYA , AKATSU SHINICHI , MITSUYA TERUAKI , TANIGAWARA MAKOTO , MIKI EIJI , NAKAJIMA ISAO
IPC分类号： G03G15/00 , G03G15/01 , G03G15/16
CPC分类号： G03G15/0131 , G03G15/5058 , G03G2215/00059 , G03G2215/0129 , G03G2215/0161
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus and method for forming an image while constantly monitoring image quality even when continuous image formation such as printing on a continuous sheet is carried out. SOLUTION: The electrophotography type image forming apparatus performing an image forming operation on the continuous sheet, transfers a toner image formed on a photoreceptor to the continuous sheet via an intermediate transfer belt in image formation. The width of a toner image forming area on the intermediate transfer belt is wider than that of an output image formation area serving as a formation area of the toner image to be transferred to the continuous sheet. The image forming apparatus has a sensor measuring physical quantities about image quality of reference images formed inside the output image formation area and outside the output image formation area of the intermediate transfer belt. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于形成图像的图像形成装置和方法，同时即使在连续的图像形成如连续片材上的打印被执行的同时始终监视图像质量。解决方案：在连续片上进行图像形成操作的电子照相式图像形成装置通过图像形成中的中间转印带将形成在感光体上的调色剂图像转印到连续片材上。中间转印带上的调色剂图像形成区域的宽度比用作转印到连续片材的调色剂图像的形成区域的输出图像形成区域的宽度宽。图像形成装置具有传感器，其测量关于形成在输出图像形成区域内部和中间转印带的输出图像形成区域外部的参考图像的图像质量的物理量。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2008216600A Image forming apparatus and toner amount detecting method 审中-公开
标题翻译：图像形成装置和调色剂检测方法
公开(公告)号：JP2008216600A
公开(公告)日：2008-09-18
申请号：JP2007053469
申请日：2007-03-02
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： AKATSU SHINICHI , SAKAMOTO MASANOBU , TANIGAWARA MAKOTO , SUZUKI TAKASHI , NAKAGAWA TSUTOMU
IPC分类号： G03G21/14 , G03G15/08 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus equipped with a toner amount detection means for detecting information on toner amount of a density patch which is being conveyed by a transfer belt driven by rollers at a predetermined detection position, and capable of accurately detecting the density patch even when frictional force between the transfer belt and the roller is lowered to cause slip. SOLUTION: A position patch PP which is being conveyed by an intermediate transfer belt 3 is detected at the detection position P, and reaching time required from starting to form a latent image that is the origin of the position patch PP until reaching the detecting position P is measured, a difference between the actual reaching time and the scheduled reaching time set in advance is calculated to generate correction time, which is used to correct the linkage timing of the apparatus, so as to make timing that the density patch DP passes through the detecting position P coincident with timing that the toner amount detection means 7 detects the toner amount. 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，配备有调色剂量检测装置，用于检测由在预定检测位置由辊驱动的转印带传送的密度片的调色剂量的信息，并且能够即使当转印带和辊之间的摩擦力降低而导致滑动时，也能准确地检测密度贴片。解决方案：在检测位置P处检测由中间转印带3输送的位置贴片PP，并从开始到达形成作为位置贴片PP的原点的潜像直到达到测量检测位置P，计算实际到达时间和预先设定的预定到达时间之间的差，以产生用于校正装置的联动定时的校正时间，以便进行定时，使得密度贴片DP 通过与调色剂量检测装置7检测到调色剂量的定时一致的检测位置P. 版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2012136301A Image forming device 有权
标题翻译：图像形成装置
公开(公告)号：JP2012136301A
公开(公告)日：2012-07-19
申请号：JP2010288173
申请日：2010-12-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANIGAWARA MAKOTO , TAKAYASU HIDENORI , MIZUNO MASAHIRO
IPC分类号： B65H23/192
摘要： PROBLEM TO BE SOLVED: To provide a printing device which can prevent damage to a web conveying mechanism without changing the mechanism significantly when a paper feeder outside the printing device suddenly stops conveying.SOLUTION: During a period from an air loop is stabilized to a stop of printing, a slack amount, that an air loop 4 requires, can be secured by controlling to lower a control position of the air loop 4 from the control position between a start of printing and a time when the air loop is stabilized, and by lowering a position of a sensor for detecting an air loop upper limit position error to, for example, a sensor 13b as compared with the position from the start of printing to the time when the air loop is stably controlled. Thereby, a time until operation of the web conveying mechanism 8 stops can be secured in response to emergency stop operation of the paper feeder 12, and the damage on the web conveying mechanism 8 can be prevented.
摘要翻译：要解决的问题：提供一种打印装置，当打印装置外的送纸器突然停止传送时，可以显着地改变机架，从而可以防止纸幅输送机构的损坏。解决方案：在空气回路稳定到打印停止期间，可以通过控制将空气回路4的控制位置从控制位置降低来确保空气回路4所需的松弛量在开始打印和空气回路稳定的时间之间，以及通过将用于检测空气回路上限位置误差的传感器的位置与例如传感器13b的位置相比较，与传送开始时的位置相比较到空气回路稳定地控制的时间。因此，能够响应于供纸器12的紧急停止操作而确定纸幅传送机构8的操作停止的时间，并且可以防止纸幅输送机构8的损坏。版权所有（C）2012，JPO＆INPIT

7. 发明专利

JP2010072010A Electrophotographic apparatus using continuous paper 审中-公开
标题翻译：使用连续纸的电子照相设备
公开(公告)号：JP2010072010A
公开(公告)日：2010-04-02
申请号：JP2008235898
申请日：2008-09-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUWANA KOJI , MIZUNO MASAHIRO , MIKI EIJI , TANIGAWARA MAKOTO
IPC分类号： G03G21/14 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide a highly precise electrophotographic apparatus using continuous paper without deteriorating printing quality. SOLUTION: A difference between a first buffer plate position detected by a buffer angle sensor immediately before a paper conveyance drive section starts paper conveyance for printing and a second buffer plate position detected by the buffer angle sensor when the speed of the paper conveyance by the paper conveyance drive section reaches a specific speed is converted into a difference in an amount of paper conveyance between the paper conveyance drive section and a heat roll drive section. From the value of this difference, a change rate of the radius of a heat roll is obtained. The acceleration profile of the heat roll drive section for the start of the subsequent paper conveyance is corrected by the change rate of the radius of the heat roll so that the amount of paper conveyance by the heat roll drive section and that by the paper conveyance drive section are equal. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供使用连续纸的高精度电子照相设备，而不会降低打印质量。解决方案：在纸张传送驱动部分之前由缓冲角度传感器检测到的第一缓冲板位置之间的差异开始纸张输送速度和纸张传送速度时开始用于打印的纸张传送和由缓冲器角度传感器检测到的第二缓冲板位置通过纸张输送驱动部达到特定速度被转换成纸张传送驱动部分和热辊驱动部分之间的纸张输送量的差异。从该差值可以得到热辊半径的变化率。用于开始后续纸张输送的热辊驱动部分的加速度曲线通过热辊的半径的变化率来校正，使得热辊驱动部分的纸张输送量和通过纸张传送驱动的纸张输送量部分是相等的。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2009220312A Skew correction control system of web in perfecting printing apparatus 审中-公开
标题翻译：完善的打印设备中的网页校正控制系统
公开(公告)号：JP2009220312A
公开(公告)日：2009-10-01
申请号：JP2008065019
申请日：2008-03-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUWANA KOJI , MIZUNO MASAHIRO , MIKI EIJI , TANIGAWARA MAKOTO
IPC分类号： B41J11/42 , B41J15/00 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide a perfecting printing apparatus which can print an image accurately from the start of printing by printing a web which is in a halt on the preheating plate of a first printing apparatus and keeps shrinking significantly in the lateral direction on a second printing apparatus without causing skew. SOLUTION: In a perfecting printing apparatus which prints on both the sides of a web by means of a first printing apparatus for forming an image on the first surface and a second printing apparatus provided on the posterior stage of the first printing apparatus and forming an image on the second surface of the web, skew correction control of the web in a halt on the preheating plate of the first printing apparatus is not performed in a period when the web passes above a sensor for detecting skew, based on the detection results from a means provided on the web conveyance path of the second printing apparatus in order to detect shrinkage of the web only in the width direction. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种完善的打印装置，其可以通过将在第一打印装置的预热板上停止的卷筒纸打印，并且在侧面显着地收缩而能够从打印开始准确地打印图像方向在第二打印设备上而不引起偏斜。解决方案：在通过用于在第一表面上形成图像的第一打印设备和设置在第一打印设备的后级上的第二打印设备在纸幅的两侧打印的完美打印设备中，以及在幅材的第二表面上形成图像时，在纸幅通过用于检测偏斜的传感器以上的时间段的基础上，不会在纸张的第一打印设备的预热板上停止时对纸幅的偏斜校正控制进行是由设置在第二印刷装置的幅材输送路径上的装置产生的，以便仅在宽度方向上检测幅材的收缩。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2013063821A Web carrying device, and image forming device 有权
标题翻译： WEB携带设备和图像形成设备
公开(公告)号：JP2013063821A
公开(公告)日：2013-04-11
申请号：JP2011203544
申请日：2011-09-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TANIGAWARA MAKOTO , MIZUNO MASAHIRO
IPC分类号： B65H23/188 , B65H20/32 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To avoid damage to a web conveyance mechanism by promptly ensuring a stable amount of air loop slacking of a web without significant changes in an air loop mechanism in case that an external paper feeding device is suddenly stopped even when the web is conveyed at a high speed.SOLUTION: A web carrying device includes a second control means (CPU28A, air loop stable state determination control section 33) for calculating a period of time from a start of printing to when signals output from first-fourth sensors 13a-13d of an air loop detection portion 13 are switched from on to off, or from off to on, and an web take-in average speed such that web take-in speed accumulated information 35 is divided by a number of accumulation times during the signal switching of the air loop detection portion 13, then calculating a fluctuation cycle of an amount of slacking in an air loop from the transition of the average speed, and reaching a determination that the air loop is in a stable state when a fluctuation in the amount of slacking in the air loop during web conveyance falls within the predetermined range stored in a memory device 29A.
摘要翻译：要解决的问题：为了避免在纸张输送机构的损坏的情况下，即使当外部给纸装置突然停止时，即使当外部给纸装置突然停止时，纸幅以高速传送。纸张传送装置包括：第二控制装置（CPU28A，空气循环稳定状态判定控制部33），用于计算从开始印刷到从第四传感器13a-13d输出的信号的时间段空气回路检测部分13从开启或关闭切换到开启状态，以及网络吸收平均速度，使得网络吸收速度累积信息35在信号切换期间被划分多个累积时间空气回路检测部13，然后从平均速度的转变中计算空气回路的松弛量的波动周期，并且当松弛量的波动时，判断为空气回路处于稳定状态在纸幅传送期间的空气回路中落在存储在存储装置29A中的预定范围内。版权所有（C）2013，JPO＆INPIT

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