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11. 发明专利

JP2007292904A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2007292904A
公开(公告)日：2007-11-08
申请号：JP2006118724
申请日：2006-04-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： YOKOGAWA NOBUHITO , TAKAHASHI MITSURU , SAEKI KAZUCHIKA , KUMA KAZUOSA , KATO TSUTOMU , FUKAO TAKESHI
IPC分类号： G03G15/00 , B65H5/38 , G03G9/08 , G03G9/087 , G03G15/20
CPC分类号： G03G15/657 , G03G2215/00675
摘要： PROBLEM TO BE SOLVED: To prevent image degradation caused by the static charges generated by the friction between the back of a recording material and the guide when guiding the recording material while keeping its back surface in contact with the guide of the transfer guide. SOLUTION: The guides 41A, 41B in contact with the recording material on its back almost at the center are made lower in the direction perpendicularly crossing the running direction of the recording material than the guides 41C in contact with both ends of the back of the recording material. When the recording material carrying unfixed toner images is transported to the fixing unit 30, the contact pressure between the back of the recording material and the guides is concentrated to both sides on the back of the material. Thus, the contact pressure at the center becomes smaller on the back of the recording material than in the conventional structures that the guides are all made even in height. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止由于记录材料的背面与引导件之间的摩擦而引起的静电荷引起的图像劣化，同时保持其背面与转印导板的引导件接触，。解决方案：与其背面几乎在中心的记录材料接触的引导件41A，41B在与记录材料的行进方向垂直的方向上比在与背面的两端接触的引导件41C相比较低的记录材料。当携带未定影调色剂图像的记录材料被传送到定影单元30时，记录材料的背面与导向件之间的接触压力集中在材料背面的两侧。因此，记录材料的背面的中心处的接触压力比传统的结构中的接触压力都要小，即使导轨全部都是高度的。版权所有（C）2008，JPO＆INPIT

12. 发明专利

JP2007127677A Guide member and image forming apparatus 审中-公开
标题翻译：指导会员和图像形成装置
公开(公告)号：JP2007127677A
公开(公告)日：2007-05-24
申请号：JP2005317788
申请日：2005-10-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAEKI KAZUCHIKA , TAKAHASHI MITSURU , KUMA KAZUOSA , FUKAO TAKESHI , KATO TSUTOMU , KISHI YOSHIHARU
IPC分类号： G03G15/20 , B65H5/36 , G03G9/087 , G03G9/09 , G03G15/16
CPC分类号： G03G15/657 , G03G2215/00413
摘要： PROBLEM TO BE SOLVED: To provide a guide member and an image forming apparatus that can inexpensively suppress forward dust without depending on the use environment or kinds of developers.
SOLUTION: When a recording material carrying a toner image is rubbed by a guide member 41 while moving from a transfer means to a fixing means, the recording material is triboelectrically charged into a reverse polarity to the charge polarity of the toner. Thereby, charges in the reverse polarity to the polarity of the toner are given to the recording material by rubbing with the guide member 41 to improve a function of electrostatically holding the toner image carried by the recording material. This suppresses the toner on the recording material from electrostatically moving to a fixing roller and suppresses generation of forward dust.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在不依赖于使用环境或种类的显影剂的情况下廉价地抑制前尘的引导部件和图像形成装置。解决方案：当携带调色剂图像的记录材料由转印装置移动到定影装置时被引导构件41摩擦时，记录材料以与调色剂的电荷极性相反的极性摩擦充电。由此，通过与引导构件41摩擦而将与调色剂极性相反极性的电荷提供给记录材料，以改善静电保持由记录材料承载的调色剂图像的功能。这抑制了记录材料上的调色剂被静电移动到定影辊上，并且抑制了正向灰尘的产生。版权所有（C）2007，JPO＆INPIT

13. 发明专利

JP2007121952A Image information detecting device and image forming apparatus 审中-公开
标题翻译：图像信息检测装置和图像形成装置
公开(公告)号：JP2007121952A
公开(公告)日：2007-05-17
申请号：JP2005317380
申请日：2005-10-31
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： HIRAYAMA YUJI , TAKAHASHI MITSURU , KUMA KAZUOSA
IPC分类号： G03G15/16
CPC分类号： G03G15/0131 , G03G15/5058 , G03G2215/00059 , G03G2215/0119 , G03G2215/0154 , G03G2215/0161
摘要： PROBLEM TO BE SOLVED: To provide an image information detecting device, equipped with constitution capable of accurately discriminating information, such as a patch pattern formed on a belt.
SOLUTION: The image forming apparatus is equipped with a belt 11 laid across at least two laying rollers such as a driving roller 72 and a driven roller 73; a device for forming a patch image as image information on the belt 11; and a light reflection sensor 111 detecting the patch image formed on the belt 11. A belt support member 601, whose surface shape is a plane or a shape for obtaining a curve or a very gentle plane is installed between the two laying rollers, and the light reflection sensor detects the patch image within the contact range of the belt with the support member 601.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种图像信息检测装置，其具有能够精确地识别诸如形成在带上的贴片图案的信息的结构。图像形成装置配备有穿过诸如驱动辊72和从动辊73的至少两个铺设辊的带11。用于形成贴片图像作为带11上的图像信息的装置; 以及光反射传感器111，其检测形成在带11上的贴片图像。表面形状是用于获得曲线或平坦平面的平面或形状的带支撑构件601安装在两个铺设辊之间，并且光反射传感器检测带与支撑构件601的接触范围内的贴片图像。版权所有（C）2007，JPO＆INPIT

14. 发明专利

JP2006259430A Belt device and image forming apparatus 审中-公开
标题翻译：皮带装置和图像形成装置
公开(公告)号：JP2006259430A
公开(公告)日：2006-09-28
申请号：JP2005078561
申请日：2005-03-18
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUMA KAZUOSA , TAKAHASHI MITSURU , SAEKI KAZUCHIKA , KATO TSUTOMU , FUKAO TAKESHI , KISHI YOSHIHARU
IPC分类号： G03G15/16
CPC分类号： G03G21/1647 , G03G15/0131 , G03G15/1615 , G03G21/168 , G03G2215/0119 , G03G2215/0158 , G03G2221/1642
摘要： PROBLEM TO BE SOLVED: To suppress misdetection of the rotational angular velocity or rotational angle displacement of a support rotary body due to vibrations of the support rotary body. SOLUTION: By a support frame 41 which rotatably supports the support rotary body 19 wound with an annular belt and fixed members 53, 54, and 55 fitted thereto, one end portion of a rotary shaft of the support rotary body fitted with a rotary member 51 is freely supported having the rotary member clamped. Consequently, the one end portion of the rotary shaft of the support rotary body is supported at at least two points by the support frame and fixed members. Further, a mark detecting means 52 is fixed to the fixed members, which are fixed to the support frame at two or more places. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：抑制由于支撑旋转体的振动引起的支撑旋转体的旋转角速度或旋转角位移的误检测。解决方案：通过支撑框架41，支撑框架41可旋转地支撑卷绕有环形带的支撑旋转体19和装配到其上的固定构件53,54和55，支撑旋转体的旋转轴的一个端部装配有旋转构件51被自由地支撑，其旋转构件被夹紧。因此，支撑旋转体的旋转轴的一端部被支撑框架和固定构件支撑在至少两点上。此外，标记检测装置52固定到在两个或更多个位置固定到支撑框架的固定构件。版权所有（C）2006，JPO＆NCIPI

15. 发明专利

JP2006259234A Belt system and image forming apparatus 有权
标题翻译：皮带系统和图像形成装置
公开(公告)号：JP2006259234A
公开(公告)日：2006-09-28
申请号：JP2005076655
申请日：2005-03-17
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SAEKI KAZUCHIKA , KATO TSUTOMU , TAKAHASHI MITSURU , FUKAO TAKESHI , KUMA KAZUOSA , KISHI YOSHIHARU
IPC分类号： G03G15/16 , G03G15/00 , G03G21/00
摘要： PROBLEM TO BE SOLVED: To prevent occurrence of leak discharge between members to be adjacently arranged on the inner peripheral side of a belt. SOLUTION: A conductive sensor opposite roller 16 is adjacently arranged to a secondary transfer bias roller 21 to which an intermediate transfer belt is extended. For details, the sensor opposite roller is arranged within discharge generation distance where the discharge may be generated when secondary transfer bias is impressed to a secondary transfer bias roller if it is grounded. Then, bias is impressed to the sensor opposite roller so that potential difference between the surface of the secondary transfer bias roller and the surface of the sensor opposite roller when the secondary transfer bias is impressed does not generate the discharge. Thus, generation of the leak discharge is prevented between the secondary transfer bias roller and the sensor opposite roller bias. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止在相邻设置在带的内周侧上的部件之间发生泄漏排放。解决方案：相对辊16的导电传感器被相邻地布置到中间转印带延伸到的二次转印偏压辊21上。对于细节，传感器对置辊布置在放电产生距离内，如果二次转印偏压被接地，则在二次转印偏压被施加时，可能产生放电。然后，向传感器对置辊施加偏压，使得当施加二次转印偏压时二次转印偏压辊的表面与传感器对辊的表面之间的电位差不产生放电。因此，防止在二次转印偏压辊和传感器对置辊偏压之间产生泄漏放电。版权所有（C）2006，JPO＆NCIPI

16. 发明专利

JP2005308799A Image forming apparatus 有权
标题翻译：图像形成装置
公开(公告)号：JP2005308799A
公开(公告)日：2005-11-04
申请号：JP2004121762
申请日：2004-04-16
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： FUKUCHI YUTAKA , ISHII HIROSHI , KUMA KAZUOSA , KIKURA MAKOTO , SUZUKI KAZUYOSHI , NOGUCHI HIROSUKE
IPC分类号： G03G21/00 , G03G15/01
摘要： PROBLEM TO BE SOLVED: To prevent color shift of a color image in an image forming apparatus which has first to third photoreceptor drums, first to third photoreceptor gears concentrically fixed and connected to the respective photoreceptor drums, idler gears engaging with the first and second photoreceptor gears and a drive gear engaging with the second and third photoreceptor gears, and which transfers toner images of first to third colors formed on the first to third photoreceptor drums, respectively, onto an intermediate transfer member, and thereby obtains a color image. SOLUTION: The phases of the first to third photoreceptor gears are matched to prevent color shift. Also, the circumferential position of the third photoreceptor gear is adjusted to further prevent color shift. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题为了防止具有第一至第三感光鼓的图像形成装置中的彩色图像的色移，同心地固定并连接到各个感光鼓的第一至第三感光体齿轮，与第一和第二感光体齿轮以及与第二和第三感光体齿轮接合的驱动齿轮，并且将分别在第一至第三感光体鼓上形成的第一至第三颜色的调色剂图像转印到中间转印部件上，从而获得彩色图像。
解决方案：第一至第三感光体齿轮的相位匹配以防止颜色偏移。此外，调整第三感光体齿轮的圆周位置以进一步防止颜色偏移。版权所有（C）2006，JPO＆NCIPI

17. 发明专利

JP2005189482A Image carrier driving device and image forming apparatus 审中-公开
标题翻译：图像载体驱动装置和图像形成装置
公开(公告)号：JP2005189482A
公开(公告)日：2005-07-14
申请号：JP2003430188
申请日：2003-12-25
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： SUZUKI KAZUYOSHI , KIKURA MAKOTO , KUMA KAZUOSA , ISHII HIROSHI , NOGUCHI HIROSUKE , FUKUCHI YUTAKA
IPC分类号： G03G21/00 , F16H1/20 , G03G15/01 , G03G15/08 , G03G21/16
摘要： PROBLEM TO BE SOLVED: To provide an image carrier driving device and an image forming apparatus to which driving components are easily attached and in which angle adjustment of the driving components are easily made, and which can suppress color shift and density unevenness. SOLUTION: A photoreceptor driving unit 10 is detachably constituted to the body frame 2 of the image forming apparatus 1. In the photoreceptor driving unit 10, photoreceptor driving trains such as photoreceptor driving gears for driving photoreceptor bodies are arranged between two sheets of sideboards. In this example, development driving trains for driving developing devices are also arranged in the unit 10. Since adjustment such as positional accuracy, angular accuracy and phase alignment in each photoreceptor train is performed in the state of a unit in the unit 10, adjustment after being attached to the image forming apparatus body becomes unnecessary. Moreover, development driving trains are arranged in the unit 10 by effectively using a space in the unit 10. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种图像载体驱动装置和易于安装驱动部件的图像形成装置，并且可以容易地进行驱动部件的角度调整，并且可以抑制色偏和浓度不均匀。解决方案：感光体驱动单元10可拆卸地构成到图像形成装置1的主体框架2.在感光体驱动单元10中，用于驱动感光体的感光体驱动系列如感光体驱动齿轮被布置在两片侧板。在本实施例中，在单元10中还配置有用于驱动显影装置的显影驱动列车。由于在单元10中的单元的状态下进行每个感光体列中的位置精度，角度精度和相位对准的调整，附着在图像形成装置主体上是不必要的。此外，通过有效地使用单元10中的空间将开发驱动列排列在单元10中。版权所有（C）2005，JPO＆NCIPI

18. 发明专利

JP2005188539A Plate member mounting structure 审中-公开
标题翻译：板成员安装结构
公开(公告)号：JP2005188539A
公开(公告)日：2005-07-14
申请号：JP2003427018
申请日：2003-12-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： NOGUCHI HIROSUKE , ISHII HIROSHI , KUMA KAZUOSA , KIKURA MAKOTO , FUKUCHI YUTAKA , SUZUKI KAZUYOSHI
IPC分类号： B41J29/00 , F16B4/00 , F16B5/06 , F16B21/18 , G03G15/00 , H05K7/12
摘要： PROBLEM TO BE SOLVED: To fix a plate member to a predetermined position while actualizing the close contact of the plate member with a supporting member. SOLUTION: A protruded portion 52 of a structure 51 as the supporting member having the protruded portion 52 and a pocket portion 53 formed around the base end of the protruded portion 52 is pressed into a through-hole 54 of an electrode plate 50 as the plate member. Thus, the electrode plate 50 is fixed in close contact with the structure 51. Chips K which are produced when pressing the protruded portion 52 of the structure 51 into the through-hole 54 of the electrode plate 50 are stored in the pocket portion 53 and so they are prevented from entering into a close contact plane between the electrode plate 50 and the structure 51, therefore actualizing the close contact of the electrode plate 50 with the structure 51 when fixing the electrode plate 50 to the predetermined position. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：在实现板构件与支撑构件的紧密接触的同时，将板构件固定到预定位置。解决方案：作为具有突出部52的支撑构件的结构51的突出部52和形成在突出部52的基端周围的凹部53被压入电极板50的通孔54 作为板构件。因此，电极板50与结构51紧密地固定。当将结构51的突出部分52按压到电极板50的通孔54中时产生的芯片K被存储在口袋部分53中因此防止其进入电极板50和结构51之间的紧密接触面，从而在将电极板50固定到预定位置时实现电极板50与结构51的紧密接触。版权所有（C）2005，JPO＆NCIPI

19. 发明专利

JP2014085529A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2014085529A
公开(公告)日：2014-05-12
申请号：JP2012234700
申请日：2012-10-24
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUMA KAZUOSA
IPC分类号： G03G15/16 , B65H5/02 , B65H5/38
摘要： PROBLEM TO BE SOLVED: To provide an image forming apparatus configured to efficiently and sufficiently prevent dust from being generated in a toner image carried on a recording medium or an end face of the recording medium from being stained with toner when the recording medium transferred from a transfer part is conveyed toward a fixing nip part.SOLUTION: An image forming apparatus includes a transfer guide member 41 for guiding a recording medium P transferred from a transfer part M, and a fixing guide member 42 for guiding the recording medium P to be transferred to a fixing nip part N. In the transfer guide member 41, at least a surface facing the recording medium P is formed of an electrically-floating metal material, and is extended to a position overlapping a conveyance surface of the fixing guide member 42 so as not to form a gap with the fixing guide member 42.
摘要翻译：要解决的问题：提供一种图像形成装置，其被配置为当记录介质从记录介质转印到记录介质或记录介质的端面时，能够有效地和充分地防止在调色剂中承载的调色剂图像中的灰尘被污染，转印部件被传送到定影辊隙部分。解决方案：图像形成装置包括用于引导从转印部件M传送的记录介质P的转印引导部件41和用于引导要转印的记录介质P的定影引导部件42 到定影夹持部分N.在转印引导构件41中，至少面向记录介质P的表面由电浮动金属材料形成，并且延伸到与定影引导构件42的输送表面重叠的位置，从而以不与固定引导构件42形成间隙。

20. 发明专利

JP2010128186A Contact/separation device for contact/separation member, and image forming apparatus 审中-公开
标题翻译：用于接触/分离成员的接触/分离装置和图像形成装置
公开(公告)号：JP2010128186A
公开(公告)日：2010-06-10
申请号：JP2008302739
申请日：2008-11-27
申请人： Ricoh Co Ltd , 株式会社リコー
发明人： KUMA KAZUOSA
IPC分类号： G03G21/16 , G03G21/00 , G03G21/14
摘要： PROBLEM TO BE SOLVED: To provide a contact/separation device for a contact/separation member, the device being used in an image forming apparatus such as a copying machine, facsimile, or printer, which brings the contact/separation member, such as a transfer member or cleaning member, into contact with an image carrier such as a photoreceptor or separates the member therefrom, decreasing load on elements composing the image forming apparatus, and reducing consumption energy of the apparatus, and to provide an image forming apparatus having the device. SOLUTION: The device includes: a support member 83 supporting the contact/separation member 66 so that it is brought into contact with/separated from the image carrier 11; a locking member 89 that locks the support member 83, with the contact/separation member 66 abutting on the image carrier 11; a pressing means 81 connected to the locking member 89 and used for bringing the contact/separation member 66 into pressure-contact with the image carrier 11 via the locking member 89 and support member 83, with the support member 83 locked by the locking member 89; and a locking/unlocking means 90 for bringing about a locking/unlocking state. Input from the pressing means 81 to the locking/unlocking means 90 is stopped in a locking state. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于接触/分离部件的接触/分离装置，该装置被用在诸如复印机，传真机或打印机的图像形成装置中，其使接触/分离部件，例如转印部件或清洁部件，与诸如感光体的图像载体接触，或者将元件分离，从而减少构成图像形成装置的元件的负载，并降低装置的消耗能量，并提供图像形成装置具有该设备。解决方案：该装置包括：支撑构件83，其支撑接触/分离构件66，使得其与图像载体11接触/分离; 锁定构件89，其锁定支撑构件83，其中接触/分离构件66抵靠在图像载体11上; 连接到锁定构件89并用于使接触/分离构件66经由锁定构件89和支撑构件83与图像载体11压力接触的按压装置81，其中支撑构件83被锁定构件89锁定 ; 以及用于实现锁定/解锁状态的锁定/解锁装置90。从按压装置81到锁定/解锁装置90的输入在锁定状态下停止。版权所有（C）2010，JPO＆INPIT

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