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1. 发明专利

JP2015022105A 画像形成装置有权
标题翻译：图像形成装置
公开(公告)号：JP2015022105A
公开(公告)日：2015-02-02
申请号：JP2013149368
申请日：2013-07-18
申请人：株式会社リコー , Ricoh Co Ltd
发明人： HOZUMI KOKI , SUGIMOTO NAOMI , TAKAHASHI YASUSHI , FURUYA SEIJI , IWATANI NAOKI , SAEKI KAZUCHIKA
IPC分类号： G03G15/14
摘要：【課題】2つのベルト状部材が互いの外周面を接触させて走行する構成において、少なくとも一方のベルト状部材の外周面上に存在する段差が他方のベルト部材のベルト幅方向端部に引っ掛かることを抑制する。【解決手段】互いの外周面が接触した状態で走行する中間転写ベルト51及び二次転写ベルト61がベルト幅方向へ移動するベルト寄りの範囲を所定の規制範囲内に規制するガイドリブ81や軸傾斜機構等のベルト寄り規制手段を備え、中間転写ベルトの外周面上にベルト走行方向に延びる補強テープ82のベルト中央側端部とベルト外周面との段差が存在している構成において、両ベルト間におけるベルト幅方向の相対的な位置関係は、両ベルトに前記所定の規制範囲内のベルト寄りが発生しても、中間転写ベルトの外周面上の段差をまたいで二次転写ベルトの端部がベルト幅方向へ相対的に移動することのない関係となっている。【選択図】図8
摘要翻译：要解决的问题：为了抑制在两个带状部件在外周面彼此接触的同时运行的结构中，存在于至少一个带状部件的外周面上的水平差带状构件中的另一个的带宽度方向上的端部。图像形成装置包括带斜度调节装置，例如导向肋81和轴倾斜机构，其在预定调节范围内调节带使外周面彼此接触的中间转印带51和二次转印带61之间的偏移范围沿带宽度方向移动，中间转印带具有在带状物中延伸的加强带82 在外周面上的行进方向和加强带82的带中心侧的端部与外侧之间存在水平差 r皮带周边表面。两带之间的带宽方向上的相对位置关系是这样的关系，使得即使当两个带发生预定调节范围内的带偏斜时，二次转印带的端部也不会相对于带宽度方向上的水平移动中间转印带外周表面的差异。

2. 发明专利

JP2011059437A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011059437A
公开(公告)日：2011-03-24
申请号：JP2009209679
申请日：2009-09-10
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUZUKI HIROKATSU , SUDO KAZUHISA , KAWASUMI MASANORI , HASHIMOTO SHUNICHI , UNO MUGIJIRO , SHINSHI AKIRA , FURUYA SEIJI , SATO MASAHIKO , TAMURA HIROOMI , SAITO KAZUYA , TAKAHASHI TOMOKO , SUGANUMA TAKUYA
IPC分类号： G03G15/16 , G03G15/00
CPC分类号： G03G15/0194 , G03G2215/00021 , G03G2215/0132
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus for appropriately adjusting image quality by improving the transferability of a test pattern from an intermediate transfer body to a belt member. SOLUTION: By using a black-image forming unit 101, an abrasive pattern is formed on a sheet conveying belt 8 and a toner is input to a contact section where a cleaning blade is in contact with the sheet conveying belt. After the toner is input to the contact section where the cleaning blade is in contact with the sheet conveying belt and then the sheet conveying belt 8 makes one or more revolutions, process control is performed in which Y, M, and C tone patterns and a B tone pattern are transferred to the sheet conveying belt. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过提高测试图案从中间转印体到带构件的转印性能来适当地调整图像质量的图像形成装置。解决方案：通过使用黑图像形成单元101，在片材输送带8上形成研磨图案，并且将调色剂输入到清洁刮板与片材输送带接触的接触部分。在将调色剂输入到清洁刮板与片材输送带接触的接触部分之后，然后片材传送带8进行一次或多次转动时，进行处理控制，其中Y，M和C色调图案和 B色调图案转印到纸张传送带上。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2011017815A Secondary transfer device and image forming apparatus 审中-公开
标题翻译：二次传输装置和图像形成装置
公开(公告)号：JP2011017815A
公开(公告)日：2011-01-27
申请号：JP2009161448
申请日：2009-07-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SHINSHI AKIRA , FURUYA SEIJI , SATO MASAHIKO , KAWASUMI MASANORI , SUZUKI HIROKATSU , TAMURA HIROOMI , SAITO KAZUYA , SUGANUMA TAKUYA , UNO MUGIJIRO , HASHIMOTO SHUNICHI , SUDO KAZUHISA , TAKAHASHI TOMOKO
IPC分类号： G03G15/01
摘要： PROBLEM TO BE SOLVED: To provide a secondary transfer device and an image forming apparatus, which achieve reduction of cost and miniaturization by making an optical sensor function as a position detection sensor, thereby reducing the number of components.SOLUTION: The secondary transfer device 8 is included in the image forming apparatus including a first image forming part 11 and a second image forming part 12, and transfers toner images formed on an intermediate transfer body 7 of the first image forming part and an image carrier 1K of the second image forming part or a toner image formed on the image carrier of the second image forming part to recording material P. The secondary transfer device 8 has a secondary transfer belt 80 held by a plurality of tensioning and laying rollers 81 to 86, the secondary transfer belt is provided to contact with/separate from the intermediate transfer body of the first image forming part and includes at least one or more optical sensors 88 opposed to the secondary transfer belt. When operating to adjust image formation, a detection pattern image-formed on the secondary transfer belt is detected by the optical sensor, and the contacting/separating operation of the secondary transfer belt with/from the intermediate transfer body is detected according to output from the optical sensor.
摘要翻译：要解决的问题：提供一种通过使光学传感器用作位置检测传感器来实现成本降低和小型化的二次转印装置和图像形成装置，从而减少部件数量。解决方案：二次转印装置8 包括在包括第一图像形成部分11和第二图像形成部分12的图像形成装置中，并且转印形成在第一图像形成部分的中间转印体7上的调色剂图像和第二图像形成部分的图像载体1K 或形成在第二图像形成部分的图像载体上的调色剂图像到记录材料P.二次转印装置8具有由多个张紧和铺放辊81至86保持的二次转印带80，二次转印带设置与第一图像形成部件的中间转印体接触/分离，并且包括相对的至少一个或多个光学传感器88 到二次转印带。当操作以调整图像形成时，通过光学传感器检测图像形成在二次转印带上的检测图案，并且根据来自第二转印带的输出检测二次转印带与中间转印体的接触/分离操作光学传感器。

4. 发明专利

JP2010032668A Recovery toner container and image forming apparatus 审中-公开
标题翻译：恢复墨粉容器和图像形成装置
公开(公告)号：JP2010032668A
公开(公告)日：2010-02-12
申请号：JP2008193075
申请日：2008-07-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： IMAI MASAKAZU , FURUYA SEIJI , TAGAMI AKIRA , SEKINE TAKUYA , HARUNO KATSUTO
IPC分类号： G03G21/10 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of suppressing the occurrence of toner blockage in a recovery toner container 16Y without applying vibration to the container. SOLUTION: A conductive layer 17Y is formed on the internal sidewall of the recovery toner container 16Y. Also, an electrical contact 18Y is provided in the recovery toner container 16Y. The electrical contact 18Y receives a voltage outputted from a blockage prevention power source 25Y for use as an external power source and having the same polarity as recovered toner, and guides this voltage to the conductive layer 17Y. A voltage having the same polarity as recovered toner is applied to the conductive layer 17Y, thereby causing the recovered toner and conductive layer 17Y electrostatically repelling each other, and hence restraining toner from adhering to the internal sidewall of the recovery toner container 16Y. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够抑制回收调色剂容器16Y中调色剂堵塞的发生而不对容器施加振动的图像形成装置。解决方案：导电层17Y形成在回收调色剂容器16Y的内侧壁上。此外，电接触件18Y设置在回收调色剂容器16Y中。电接点18Y接收从防堵塞电源25Y输出的电压，作为外部电源使用，与回收的调色剂具有相同的极性，并将该电压引导到导电层17Y。将具有与回收的调色剂相同极性的电压施加到导电层17Y，从而使回收的调色剂和导电层17Y彼此静电排斥，从而抑制调色剂粘附到回收调色剂容器16Y的内侧壁上。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2008216316A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2008216316A
公开(公告)日：2008-09-18
申请号：JP2007049762
申请日：2007-02-28
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKINE TAKUYA , FURUYA SEIJI
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which is capable of preventing the increase in cost by varying tension to be applied and without adding a special configuration for preventing the occurrence of slip between a roller and an intermediate transfer member using a belt, which is caused by the reduction in friction coefficient. SOLUTION: The image forming apparatus includes image forming parts for a plurality of colors and includes a transfer device having such a configuration that the intermediate transfer member using the belt to which images from respective image forming parts are to be transferred is stretched around rollers having small diameters of ≤ψ20 and is rotated. A tension roller applying tension to the intermediate transfer member is placed in one side in an extending direction of the intermediate transfer member, and with respect to a pressure applied to the tension, the pressure applied during operations other than an image forming operation is set to be lower than the pressure applied during the image forming operation without releasing this pressure. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种图像形成装置，其能够通过改变所施加的张力来防止成本增加，并且不增加用于防止辊和中间转印构件之间的滑动发生的特殊构造，所述特殊构造使用这是由摩擦系数的降低引起的。解决方案：图像形成装置包括用于多种颜色的图像形成部件，并且包括传送装置，其具有这样的结构，即使用要将来自各个图像形成部件的图像传送的皮带的中间转印部件被拉伸滚子的直径小于等于ψ20，旋转。向中间转印部件施加张力的张紧辊被放置在中间转印部件的延伸方向的一侧，并且相对于施加到张力的压力，除了成像操作之外的操作中施加的压力被设定为低于图像形成操作期间施加的压力而不释放该压力。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2008209898A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2008209898A
公开(公告)日：2008-09-11
申请号：JP2007303168
申请日：2007-11-22
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAGUCHI TOSHITAKA , FURUYA SEIJI , NAKAYAMA TAKAHIRO
IPC分类号： G03G21/14 , G03G15/16 , G03G21/00 , G03G21/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of accurately detecting a toner image on the surface of an intermediate transfer belt 10 and the image density of the toner image without increasing the size of the apparatus. SOLUTION: The image forming apparatus temporarily advances recording paper for recording a toner image in a first position opposite to the belt surface relative to a first belt area that is in the wrapped area of the intermediate transfer belt 10 relative to a secondary transfer nip entrance roller 14 extending the intermediate transfer belt 10. The image forming apparatus is provided with a sensor moving means for moving an optical sensor unit 150 between the first position and the second position opposite to the belt surface in a second belt area that is within the wrapped area apart from the first belt area relative to the center of the wrapped area in the belt moving direction. A control means is configured such that based on the detection result of the optical sensor unit 150 in the first position, image forming conditions are adjusted. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在不增加设备尺寸的情况下能够精确地检测中间转印带10的表面上的调色剂图像和调色剂图像的图像浓度的图像形成装置。解决方案：图像形成装置相对于在中间转印带10的包裹区域中相对于二次转印的第一带区域暂时将用于记录调色剂图像的记录纸提前到与带表面相对的第一位置夹持入口辊14延伸中间转印带10.图像形成装置设置有传感器移动装置，用于在第一位置和与带表面相对的第二位置之间的第二带区域内移动光学传感器单元150 包围区域相对于带移动方向上的包裹区域的中心离开第一带区域。控制装置被配置为使得基于第一位置中的光学传感器单元150的检测结果，调整图像形成条件。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2008139751A Cleaning device and image forming apparatus 审中-公开
标题翻译：清洁装置和图像形成装置
公开(公告)号：JP2008139751A
公开(公告)日：2008-06-19
申请号：JP2006328052
申请日：2006-12-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YAMAGUCHI TOSHITAKA , SAEKI KAZUCHIKA , SEKINE TAKUYA , FURUYA SEIJI , NAKAYAMA TAKAHIRO
IPC分类号： G03G21/10 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus having an intermediate transfer unit equipped with a cleaning means, the apparatus being designed so as to obtain stable cleaning performance for a long time without increasing the size and cost of the apparatus. SOLUTION: Toner scraped from the surface of an intermediate transfer belt 10 by a cleaning blade 41 falls on the bottom of a waste toner tank 43 formed integrally with the cleaning blade 41 and accumulates in the tank 43. The cleaning blade 41 and the waste toner tank 43 are rockable around a support point A. When the amount of accumulated waste toner 90 increases, a cleaning device 19 rotates by its weight, the rotating force acts in the direction in which the cleaning blade 41 is brought into contact with a transfer belt 10, and consequently the contact force increases. As the number of sheets used increases, the amount of waste toner also increases. Due to the weight increase, the contact force of the cleaning blade 41 also increases with this. This makes it possible to compensate for a degradation in cleaning performance. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种具有装备有清洁装置的中间转印单元的图像形成装置，该设备被设计成在不增加装置的尺寸和成本的情况下长时间获得稳定的清洁性能。解决方案：通过清洁刮板41从中间转印带10的表面刮下的墨粉落在与清洁刮刀41一体形成的废调色剂罐43的底部，并积聚在罐43中。清洁刮板41和废色调剂罐43围绕支撑点A可摆动。当累积的废调色剂90的量增加时，清洁装置19由其重量旋转，旋转力沿清洁刮板41与其接触的方向作用转印带10，因此接触力增加。随着使用的片材数量的增加，废粉的量也增加。由于重量增加，清洁刮板41的接触力也随之增加。这使得可以补偿清洁性能的劣化。版权所有（C）2008，JPO＆INPIT

8. 发明专利

JP2006259637A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2006259637A
公开(公告)日：2006-09-28
申请号：JP2005080710
申请日：2005-03-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKECHI RYUTA , FURUYA SEIJI , SAITO HIROYUKI , NAKAYAMA TAKAHIRO
IPC分类号： G03G15/16 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To prevent sudden damage of a belt and to extend the life of the belt. SOLUTION: The image forming apparatus is provided with an intermediate transfer body which is an image carrier, the intermediate transfer body is an endless belt (100) and deflection stop guides (150) are formed on both the ends of a belt aperture part. Further the image forming apparatus is provided with a sensor for detecting the belt (100) and a function capable of changing the deflection direction of the belt (100) by a sensor signal for detecting the belt (100). The sensor for detecting the ruggedness of the belt surface detects the ruggedness generated on the belt surface due to stress caused by the contact of the deflection stop guides (150) with the end part of an optional belt stretch roller. Consequently load applied to the deflection stop guides (150) of the belt (100) can be reduced, the life of the belt (100) can be extended, and thereby the image forming apparatus with high reliability, capable of suppressing environmental loads can be provided. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止皮带的突然损坏并延长皮带的使用寿命。解决方案：图像形成装置设置有作为图像载体的中间转印体，中间转印体是环形带（100），偏转止动引导件（150）形成在带孔的两端部分。此外，图像形成装置设置有用于检测带（100）的传感器和能够通过用于检测带（100）的传感器信号来改变带（100）的偏转方向的功能。用于检测皮带表面的坚固性的传感器检测由于偏转止动导向件（150）与可选带拉伸辊的端部接触引起的应力而在皮带表面产生的粗糙度。因此，可以减少施加到带（100）的偏转止动导轨（150）的负载，从而能够延长带（100）的寿命，从而能够抑制环境负荷的可靠性高的图像形成装置可以是提供。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2006184457A Transfer device of electrophotographic apparatus 审中-公开
标题翻译：电子显示设备的传输设备
公开(公告)号：JP2006184457A
公开(公告)日：2006-07-13
申请号：JP2004376751
申请日：2004-12-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： FURUYA SEIJI , TAKECHI RYUTA , SAITO HIROYUKI , NAKAYAMA TAKAHIRO
IPC分类号： G03G15/14 , G03G15/00 , G03G15/16 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To improve performance for separating a recording medium from an intermediate transfer body and prevent faulty images. SOLUTION: The transfer device includes photoreceptor drums 20 on which developer images are formed and held, and an intermediate transfer belt 11 on which the toner images formed on the photoreceptor drums 20 are held. The transfer device transfers the toner image formed on the intermediate transfer belt 11 onto a recording medium. Specifically, right after the leading end of the recording medium is passed through an area where the intermediate transfer belt 11 is in contact with the transfer device 12, the transfer device applies a bias for transferring the toner images to the recording medium and applies a separation bias for discharging the transfer paper. Thus, starting the application of the transfer bias after separating the leading end of the recording medium from the transfer belt 11 improves the performance for separating the recording medium from the intermediate transfer belt 11 and also prevents faulty images. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提高从中间转印体分离记录介质的性能，并防止故障图像。转印装置包括形成有保持显影剂图像的感光鼓20和保持感光鼓20上形成的调色剂图像的中间转印带11。转印装置将形成在中间转印带11上的调色剂图像转印到记录介质上。具体来说，在记录介质的前端通过中间转印带11与转印装置12接触的区域之后，转印装置施加用于将调色剂图像转印到记录介质上的偏压，并施加分离用于排出转印纸的偏压。因此，在将记录介质的前端从转印带11分离开始之后开始施加转印偏压，提高了从中间转印带11分离记录介质的性能，并且还防止了故障图像。版权所有（C）2006，JPO＆NCIPI

10. 发明专利

JP2006154330A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2006154330A
公开(公告)日：2006-06-15
申请号：JP2004345180
申请日：2004-11-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： TAKECHI RYUTA , SAITO HIROYUKI , FURUYA SEIJI , NAKAYAMA TAKAHIRO
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus having improved image quality by improving the accuracy of speed measurement of an intermediate transfer belt and improving positioning accuracy.
SOLUTION: The image forming apparatus utilizes an electrophotographic process, wherein an intermediate transfer belt unit is stretched by at least three or more rollers excluding a primary transfer roller, deflection guides 150 are attached to both end parts of the belt 100, each deflection guide 150 is brought into contact with the end part of the roller to regulate belt deflection, and at least one roller out of rollers other than a drive roller 101 for driving the belt 100 is a rotational frequency measuring roller 106 for measuring the rotational frequency of the belt 100, wherein the end part of the rotational frequency measuring roller 106 is arranged on the inside of the belt 100 as compared with the end part of the roller 101 for deflection control and on the belt stretching side from the drive roller 101.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过提高中间转印带的速度测量的精度并提高定位精度来提供具有改善的图像质量的图像形成装置。解决方案：图像形成装置利用电子照相方法，其中中间转印带单元通过除一次转印辊以外的至少三个或更多个辊进行拉伸，偏转引导件150附接到带100的两个端部，每个偏转引导件150与辊的端部接触以调节带偏转，并且除了用于驱动带100的驱动辊101之外的辊之外的至少一个辊是用于测量转动频率的旋转频率测量辊106 与转动控制用辊101的端部和驱动辊101的带拉伸侧相比，转速测量辊106的端部配置在带100的内侧。版权所有（C）2006，JPO＆NCIPI

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