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1. 发明专利

JP2013033146A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2013033146A
公开(公告)日：2013-02-14
申请号：JP2011169366
申请日：2011-08-02
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUMA KAZUOSA
IPC分类号： G03G15/16 , B65H7/14 , G03G15/00
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of obtaining an excellent image by preventing the color defect of an image, even when printing is performed on the rear surface side being a non-image formation surface of a recording material whose one surface being the front surface side has printing.SOLUTION: The image forming apparatus includes transfer means 36 transferring a toner image formed on an image carrier to a recording material P, in such a manner that a transfer current is supplied to the transfer means 36, fixing means 50 heating and fixing the toner image transferred to the recording material by the transfer means to the recording material, and image detection means 70 detecting the presence or absence of the image formed on the rear surface of the recording material, when the recording material is conveyed from paper feed trays 41 and 59 in which the recording material is set. When the image of the rear surface of the recording material is detected by the image detection means, the transfer current to the transfer means 36 is changed from a first set value for one-sided printing to a second set value for double-sided printing by using control means 200.
摘要翻译：要解决的问题：即使在作为记录材料的非图像形成表面的背面侧进行打印时，提供能够通过防止图像的色彩缺陷来获得优异的图像的图像形成装置其一面是前表面侧具有印刷。解决方案：图像形成装置包括将形成在图像载体上的调色剂图像转印到记录材料P上的转印装置36，转印电流被提供给转印装置36，固定装置50加热和固定通过转印装置将记录材料转印到记录材料上的调色剂图像和图像检测装置70，当记录材料从进纸盘传送时，检测形成在记录材料的后表面上的图像的存在或不存在其中设置有记录材料的图41和59。当由图像检测装置检测记录材料的后表面的图像时，转印装置36的转印电流从用于单面打印的第一设定值改变为用于双面打印的第二设定值使用控制手段200.版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2011107733A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2011107733A
公开(公告)日：2011-06-02
申请号：JP2011049789
申请日：2011-03-08
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUMA KAZUOSA , YOKOGAWA NOBUHITO , TAKAHASHI MITSURU , SAEKI KAZUCHIKA , FUKAO TAKESHI , KATO TSUTOMU
IPC分类号： G03G21/16 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To make a worker appropriately and easily execute an exchange operation by improving handling properties in the exchange operation of a roller member. SOLUTION: The secondary transfer roller 100 for exchange is attached to an image forming apparatus main body so as to exchange the secondary transfer roller to a new one. The secondary transfer roller 100 has: a roller part 102; two shaft parts 103 respectively extended outward in a roller rotation axis direction from both ends of the roller part; and handle members 104 and 101 provided so as to freely turn with respect to the two shaft parts 103. One part 101 of the handle members is used as a delivery regulation member for regulating a delivery direction of a recording material by contacting with the recording material in the middle of delivery when being attached to the image forming apparatus main body. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过提高辊构件的更换操作中的操作性能，使作业人员适当且容易地执行交换操作。解决方案：用于更换的二次转印辊100附着到图像形成装置主体，以便将二次转印辊更换为新的。二次转印辊100具有：辊部102; 分别从滚子部的两端沿滚筒旋转轴方向向外延伸的两个轴部103; 手柄构件104和101设置成相对于两个轴部103自由转动。手柄构件的一个部分101用作通过与记录材料接触来调节记录材料的传送方向的传送调节构件在附着于图像形成装置主体时在传送中间。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2011017941A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2011017941A
公开(公告)日：2011-01-27
申请号：JP2009163094
申请日：2009-07-09
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SEKINE TAKUYA , YAMAGUCHI TOSHITAKA , KUMA KAZUOSA , FUKAO TAKESHI , KISHI YOSHIHARU , TAKAHASHI MASAKI , KAMIYAMA HIDEKI
IPC分类号： G03G15/16 , G03G15/20 , G03G21/00 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which does not cause a failure such that the attitude of a recording medium goes out of order immediately after the rear end part of the recording medium has passed a transfer nip part and the rear end part or the like of the recording medium is soiled by toner.SOLUTION: Contact/separation mechanism 41 to 43 are provided for bringing a transfer member 19 into contact with an image carrier 8 or separating it from the image carrier 8. These contact/separation mechanisms 41 to 43 are controlled so that the transfer member 19 can be separated from the image carrier 8 before the rear end part in the conveying direction of the recording medium P that is conveyed to the transfer nip part passes the transfer nip section.
摘要翻译：要解决的问题：提供一种图像形成装置，其不会引起故障，使得记录介质的姿态在记录介质的后端部分经过转印夹持部分之后立即停止，并且后端部分记录介质等被调色剂污染。解决方案：提供接触/分离机构41至43，以使转印部件19与图像载体8接触或将其从图像载体8分离。这些接触/分离机构在输送到转印夹持部的记录介质P的输送方向上的后端部通过转印夹持部之前，控制转印部件19与图像载体8分离。

4. 发明专利

JP2010262219A Solid lubricant coating device, process cartridge, and image forming apparatus 有权
标题翻译：固体润滑涂料装置，工艺盒和图像形成装置
公开(公告)号：JP2010262219A
公开(公告)日：2010-11-18
申请号：JP2009114494
申请日：2009-05-11
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KAMIYAMA HIDEKI , KUMA KAZUOSA , YAMAGUCHI TOSHITAKA , FUKAO TAKESHI , KISHI YOSHIHARU , TAKAHASHI MASAKI , SEKINE TAKUYA
IPC分类号： G03G21/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide a solid lubricant coating device capable of improving cleaning performance better in an aging state than in an initial state. SOLUTION: Solid lubricant 112 has a two-layer structure. When the material of a portion 112a coming into contact with a brush 111 in the initial state of the solid lubricant 112 is defined as material A, and the material of a portion 112b in a lower layer is defined as material B, material capable of improving cleaning performance better than the material A is selected to be used as the material B of the portion 112b. When using the solid lubricant 112 having such a two-layer structure, the portion 112a composed of the material A is applied to an intermediate transfer belt 10 in the initial state, and when the portion 112a composed of the material A is consumed with lapse of time, the portion 112b composed of the material B is applied to the intermediate transfer belt 10 thereafter, so that the cleaning performance is improved by assistance of the lubricant even when a cleaning blade 19a is worn and the cleaning performance is deteriorated. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在老化状态下比在初始状态下更好地提高清洁性能的固体润滑剂涂布装置。固体润滑剂112具有两层结构。当在固体润滑剂112的初始状态下与电刷111接触的部分112a的材料被定义为材料A时，下层中的部分112b的材料被定义为材料B，能够改善的材料清洗性能优于材料A被选择用作部分112b的材料B. 当使用具有这种两层结构的固体润滑剂112时，在初始状态下将由材料A构成的部分112a施加到中间转印带10上，并且当由材料A组成的部分112a被消耗时时间，此后由材料B构成的部分112b被施加到中间转印带10，使得即使当清洁刮板19a被磨损并且清洁性能劣化时，辅助润滑剂也提高了清洁性能。版权所有（C）2011，JPO＆INPIT

5. 发明专利

JP2010008971A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2010008971A
公开(公告)日：2010-01-14
申请号：JP2008171646
申请日：2008-06-30
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： FUKAO TAKESHI , SUDO KAZUHISA , KAWAHARA SHINICHI , TAKAHASHI MITSURU , KUMA KAZUOSA , KATO TSUTOMU
IPC分类号： G03G21/10 , G03G15/01 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which achieves improvement of a toner recycling rate by reusing even residual toner collected from a transfer paper conveying device, and is miniaturized by making capacity of a container for collected toner from the transfer paper conveying device smaller. SOLUTION: The image forming apparatus where image carriers 1 and developing devices 3 for colors other than black are arranged so as to transfer a toner image to an intermediate transfer body 6, and has the transfer conveying device 15 conveying a recording medium while coming into contact with the intermediate transfer body 6 and a black image carrier 1B respectively, wherein the toner image on the black image carrier 1B is directly transferred to the recording medium, and then the toner image on the intermediate transfer body 6 is superposed and transferred thereto. The image forming apparatus has a cleaning means 34 removing the toner remaining on the transfer conveying device 15 and holding it temporarily, and a removed toner conveying means 11 conveying the removed toner. Black toner collected from the black image carrier 1B after transfer and the toner removed by the cleaning means 34 are collected to a black developing device 3B, so as to be reused. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供一种图像形成装置，其通过重复利用从转印纸输送装置收集的残留调色剂来实现调色剂再循环率的提高，并且通过从转印器中收集的调色剂容器的容量而小型化纸张输送装置较小。解决方案：图像载体1和除了黑色之外的颜色的显影装置3被布置成将调色剂图像转印到中间转印体6上的图像形成装置，并且具有传送记录介质的转印输送装置15，分别与中间转印体6和黑色图像载体1B接触，其中将黑色载体1B上的调色剂图像直接转印到记录介质上，然后将中间转印体6上的调色剂图像叠加并转印于此。图像形成装置具有清除装置34，去除转印输送装置15上残留的调色剂并暂时保持的调色剂，以及输送除去的调色剂的去除的调色剂输送装置11。转印后从黑色图像载体1B收集的黑色调色剂和由清洁装置34去除的调色剂被收集到黑色显影装置3B中，以便再次使用。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2009175407A Lubricant applying device, image forming device, and using method for image forming device 审中-公开
标题翻译：润滑应用装置，图像形成装置以及图像形成装置的使用方法
公开(公告)号：JP2009175407A
公开(公告)日：2009-08-06
申请号：JP2008013582
申请日：2008-01-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KISHI YOSHIHARU , KUMA KAZUOSA , KATO TSUTOMU , FUKAO TAKESHI
IPC分类号： G03G21/00 , G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide a lubricant applying device, an image forming device, and an image forming method, applying a lubricant time-serially stably.
SOLUTION: The lubricant 82 has, in its initial state, a concave part 82a having the same curvature as that of an outer circumference of an application member 83 in a cross section perpendicular to a rotation center axis direction of the application member 83, and abutting on the outer circumference. A bottom position T of the concave part 82a in a direction perpendicular to a width direction Y1 of the lubricant 82 and a rotation center axis direction thereof is shifted to an upstream of a rotational direction C1 of the application member 83, by a distance s (0≤s≤0.12L (L: width of the lubricant 82)) from the center position of the lubricant 82 in the width direction Y1.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供润滑剂施加装置，图像形成装置和图像形成方法，可以顺序地顺序地施加润滑剂。解决方案：润滑剂82在其初始状态下具有与施加构件83的外周相同的曲率的凹部82a，该凹部82a在与施加构件83的旋转中心轴方向垂直的截面中并且邻接在外周。凹部82a的与垂直于润滑剂82的宽度方向Y1的方向及其旋转中心轴方向的底部位置T移动到施加部件83的旋转方向C1的上游距离s（ 0≤s≤0.12L（L：润滑剂82的宽度））从润滑剂82的宽度方向Y1的中心位置开始。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2009031718A Transfer apparatus and image forming apparatus 审中-公开
标题翻译：传送装置和图像形成装置
公开(公告)号：JP2009031718A
公开(公告)日：2009-02-12
申请号：JP2007295129
申请日：2007-11-14
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KATO TSUTOMU , KUMA KAZUOSA , FUKAO TAKESHI , KISHI YOSHIHARU
IPC分类号： G03G15/16 , G03G15/00 , G03G15/01 , G03G21/16
CPC分类号： G03G15/0131 , G03G15/1605 , G03G21/168 , G03G2221/1642
摘要： PROBLEM TO BE SOLVED: To provide a transfer belt unit 30 where each primary transfer roller 4 can be individually and easily replaced. SOLUTION: The transfer belt unit 30 has four primary transfer rollers respectively independently corresponding to four photoreceptors mounted on the image forming apparatus and electrostatically transfers toner images respectively formed on the four photoreceptors to an intermediate transfer belt 3' by the four primary transfer rollers. A plurality of frames respectively individually holding the four primary transfer rollers are provided, and constituted as an individual transfer unit 40 integrally attached to/detached from the transfer belt unit 30 together with the primary transfer rollers held by the respective frames themselves. Then, each individual transfer unit 40 is made detachable to the transfer belt unit 30. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一个转印带单元30，其中可以单独且容易地更换每个一次转印辊4。
解决方案：转印带单元30具有四个一次转印辊，分别独立地对应于安装在图像形成装置上的四个光感受器，并通过四次一次转印将分别形成在四个感光体上的调色剂图像静电转印到中间转印带3' 滚筒。设置分别保持四个一次转印辊的多个框架，并且构成为与由各个框架本身保持的一次转印辊一体地附接到/从转印带单元30拆卸的单独的转印单元40。然后，每个单独的转移单元40可拆卸到转印带单元30.版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2008176066A 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：JP2008176066A
公开(公告)日：2008-07-31
申请号：JP2007009470
申请日：2007-01-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： FUKAO TAKESHI , TAKAHASHI MITSURU , KUMA KAZUOSA , KATO TSUTOMU , FUJIWARA KOUKO , KISHI YOSHIHARU , YOKOGAWA NOBUHITO
IPC分类号： G03G15/16 , G03G9/087 , G03G21/10
摘要： PROBLEM TO BE SOLVED: To provide a cleaning device which suppresses soiling at the inside of an image forming apparatus occurring upon the replacement of the cleaning device, and has increased efficiency of replacement work of the cleaning device, and to provide an image forming apparatus. SOLUTION: The side face of a case 20a of a cleaning device 20 includes an opening part 212a into which a transfer residual toner storage part 25 supported by a cleaning device body is inserted, the side face being at a side from which the case 20a is inserted into the cleaning device body. When the cleaning device 20 is set in the cleaning device body, the transfer residual toner storage part 25 is inserted into the opening part 212 of the case 20a and the transfer residual toner storage part 25 is housed inside the case. When the case 20a of the cleaning device 20 is pulled out from the cleaning device body, the transfer residual toner storage part 25 housed in the case is pulled out from the opening part 212. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种清洁装置，其抑制在更换清洁装置时发生的图像形成装置内部的污物，并且提高了清洁装置的更换工作的效率，并提供图像成型装置。解决方案：清洁装置20的壳体20a的侧面包括开口部分212a，由清洁装置主体支撑的转印残余调色剂存储部分25插入到该开口部分212a中，侧面位于壳体20a插入到清洁装置主体中。当清洁装置20设置在清洁装置主体中时，转印残留调色剂存储部分25插入到壳体20a的开口部分212中，并且转印残余调色剂存储部分25容纳在壳体内。当清洁装置20的壳体20a从清洁装置主体被拉出时，容纳在壳体中的转印残留调色剂存储部分25从打开部分212被拉出。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2008145537A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2008145537A
公开(公告)日：2008-06-26
申请号：JP2006329899
申请日：2006-12-06
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUMA KAZUOSA , FUJIWARA KOUKO , FUKAO TAKESHI , KISHI YOSHIHARU , TAKAHASHI MITSURU , KATO TSUTOMU , YOKOGAWA NOBUHITO
IPC分类号： G03G15/16
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus which includes an intermediate transfer belt on which a toner image is formed, and a transfer roller disposed so as to face the intermediate transfer belt and electrostatically transfers the toner image formed on the intermediate transfer belt to a recording medium conveyed between the intermediate transfer belt and the transfer roller and causes the recording medium having the toner image transferred thereto to pass between a fixing roller and a pressure roller to fix the toner image onto the recording medium by effect of heat and pressure, the image forming apparatus preventing a degradation in quality of the image formed on the recording medium, which is caused by a reduction in parallelism between the transfer roller and the fixing roller. SOLUTION: The transfer roller 18 is so supported that its position can be adjusted in an axial line direction X, and the position of the transfer roller 18 is adjusted in the axial line direction in accordance with the deviation of parallelism between the transfer roller 18 and the fixing roller 25. 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，其包括其上形成有调色剂图像的中间转印带和设置成面对中间转印带的转印辊，并静电转印形成在其上的调色剂图像中间转印带传送到在中间转印带和转印辊之间输送的记录介质，并使具有转印到其上的调色剂图像的记录介质在定影辊和加压辊之间通过，以将调色剂图像定影到记录介质上，热和压力，图像形成装置防止由于转印辊和定影辊之间的平行度的降低而导致在记录介质上形成的图像的质量下降。解决方案：转印辊18被支撑为可以在轴线方向X上调整其位置，并且根据转印之间的平行度的偏差来调节转印辊18的轴线方向的位置辊18和定影辊25.版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2008064902A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2008064902A
公开(公告)日：2008-03-21
申请号：JP2006240870
申请日：2006-09-05
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUMA KAZUOSA , FUKAO TAKESHI , TAKAHASHI MITSURU , SAEKI KAZUCHIKA , KATO TSUTOMU , YOKOGAWA NOBUHITO
IPC分类号： G03G21/16 , G03G15/20
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus enabling common use of a transfer roller unit provided with a transfer roller and a conveying passage forming member even for models having mutually different conveying directions of a recording body directing to guide the recording body in the neighborhood of the transfer roller. SOLUTION: In the image forming apparatus, a first guide plate 70 and a secondary transfer roller 19 being the conveying passage forming member are integrally assembled, and a second guide plate 71 being a guide member is attached to the first guide plate 70 of the secondary transfer roller unit 190 being the transfer roller unit detachable to an image forming apparatus body. 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，其能够共同使用设置有转印辊和输送通道形成构件的转印辊单元，即使对于引导记录的记录体的相互不同的输送方向的型号身体在转移辊附近。解决方案：在图像形成装置中，作为输送通道形成构件的第一引导板70和二次转印辊19被一体地组装，并且作为引导构件的第二引导板71附接到第一引导板70 二次转印辊单元190是可拆卸到图像形成装置主体的转印辊单元。版权所有（C）2008，JPO＆INPIT

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