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    • 3. 发明专利
    • 画像投射装置、基板保持構造
    • 图像投影设备和基板保持结构
    • JP2015011082A
    • 2015-01-19
    • JP2013134362
    • 2013-06-26
    • 株式会社リコーRicoh Co Ltd
    • YAMADA MASAMICHIFUJIOKA TETSUYAISHIKAWA NAOYUKIMIKAWA AKINAOKANAI HIDEOMIKUTSU YASUNARITSUCHIYA SATOSHI
    • G03B21/14G03B21/00H04N5/74
    • H04N5/7475G03B21/14G03B21/145G03B21/147G03B21/28H04N5/7458H04N9/3114H04N9/3141
    • 【課題】電気的ノイズの発生がなくコンパクトな画像投射装置を提供する。【解決手段】画像表示素子が設けられた第1基板と、光を放射する光源装置と、金属製の保持部と、前記保持部によって保持され、前記光源装置からの光を前記画像表示素子へと導く照明光学部と、前記画像表示素子で生成された画像を被照射面に投射する投射光学部と、前記第1基板のコネクタと電気的に接続される第2基板と、前記保持部に対して、電気的に接続した状態で固定された板金と、前記板金に設けられた金属製の弾性部と、を備え、前記第1基板は、前記保持部に対して固定され、前記金属製の弾性部は、前記第1基板における前記コネクタ近傍の電気的な導電部に接触しており、前記第2基板は、前記板金に固定されるとともに、前記板金に電気的に接続される。【選択図】図10
    • 要解决的问题:提供一种不发生电噪声的图像投影装置,并且是紧凑的。解决方案:图像投影装置包括:具有设置有图像显示元件的第一基板; 发光的光源装置; 金属保持部; 照明光学部,其由所述保持部保持并将来自所述光源的光引导到所述图像显示元件; 投影光学部,其将由图像显示元件生成的图像投影在投影面上; 电连接到第一基板的连接器的第二基板; 在金属片与保持部电连接的状态下被固定在保持部上的金属板; 以及设置在所述金属板中的金属弹性部。 第一基板被固定到保持部,并且金属弹性部与第一基板中的连接器附近的导电部接触。 第二基片固定在金属板上并与金属片电连接。
    • 5. 发明专利
    • Autofocus device, projection lens device, and image projection device
    • 自动装置,投影镜头装置和图像投影装置
    • JP2014098766A
    • 2014-05-29
    • JP2012249625
    • 2012-11-13
    • Ricoh Co Ltd株式会社リコー
    • TSUCHIYA SATOSHIYAMADA MASAMICHIMIKUTSU YASUNARINANBA HIDEOKANAI HIDEOISHIKAWA NAOYUKIIKEDA MOTOHISA
    • G02B7/28G02B27/18G03B21/00G03B21/14
    • G02B7/09G02B7/28G02B7/32G03B3/10G03B21/145G03B21/2066G03B21/53G03B33/08
    • PROBLEM TO BE SOLVED: To provide an autofocus device with high attachment accuracy of a light receiving element.SOLUTION: The autofocus device includes: a light source part for emitting light; a projection lens part for projecting the light emitted from the light source part on a projection surface; a light receiving part for receiving diffuse reflectance light from the projection surface; a light receiving lens part for guiding the diffuse reflectance light to the light receiving part; a calculation part for calculating a focal distance to the projection surface from the diffuse reflectance light received by the light receiving part; a first holding part for holding the light source part, the projection lens part, and the light receiving lens part; a second holding part for holding the light receiving part, attached to the first holding part; and a pressing part for pressing the second holding part against the first holding part. The second holding part is configured to be movable on the surface of the first holding part along a groove formed on the first holding part.
    • 要解决的问题:提供具有高的光接收元件附着精度的自动对焦装置。解决方案:自动对焦装置包括:用于发光的光源部分; 投影透镜部,用于将从光源部发射的光投射在投影面上; 光接收部分,用于从投影表面接收漫反射光; 用于将漫反射光引导到光接收部分的光接收透镜部分; 计算部,其从由所述受光部接收的漫反射光计算到所述投影面的焦距; 用于保持光源部分的第一保持部分,投影透镜部分和光接收透镜部分; 用于保持安装在第一保持部上的受光部的第二保持部; 以及用于将第二保持部按压在第一保持部上的按压部。 第二保持部被配置为沿着形成在第一保持部上的凹槽在第一保持部的表面上移动。
    • 6. 发明专利
    • Paper separation device, fixing device, and image forming apparatus
    • 纸张分离装置,固定装置和图像形成装置
    • JP2013134290A
    • 2013-07-08
    • JP2011283028
    • 2011-12-26
    • Ricoh Co Ltd株式会社リコー
    • MIKUTSU YASUNARI
    • G03G15/20
    • PROBLEM TO BE SOLVED: To provide a paper separation device that prevents trouble in the conveyance of a recording medium that is easily bent as thin paper and prevents formation of a streak of image on the surface of a recording medium.SOLUTION: The paper separation device is to be disposed downstream of a nip part, formed from the two rotors in contact with each other, in the direction of paper conveyance. The paper separation device has one or more separation members the leading ends of which are aligned parallel to each other in their respective axial directions of the rotors. A plurality of recessed parts are formed in their respective paper-sliding faces of the separation members.
    • 要解决的问题:提供一种纸分离装置,其防止输送容易弯曲成薄纸的记录介质的麻烦,并防止在记录介质的表面上形成条纹。解决方案:纸分离装置 设置在沿着纸张传送的方向上由彼此接触的两个转子形成的辊隙部分的下游。 纸分离装置具有一个或多个分离构件,其前端在转子的各自的轴向方向上彼此平行地对准。 在分离部件的各自的纸张滑动面上形成有多个凹部。
    • 7. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2010281939A
    • 2010-12-16
    • JP2009133860
    • 2009-06-03
    • Ricoh Co Ltd株式会社リコー
    • MIKUTSU YASUNARI
    • G03G15/20
    • G03G15/6573G03G15/2028
    • PROBLEM TO BE SOLVED: To provide an image forming apparatus which properly guides a paper discharged from a fixing device to a conveying device, while suppressing degradation in image quality or preventing failures such as jamming and paper folding. SOLUTION: The image forming apparatus includes: the fixing device 5 having a nip N1 for fixing toner on the paper by heat and pressure; a glossing device 6 arranged downstream from the fixing device 5 in a paper conveying direction and conveying the paper to the further downstream side; and a conveyance guide 45 which has a plurality of guide members 45a and 45b arranged across a path line PL between the fixing device 5 and the glossing device 6 and in which a space held by the plurality of guide members 45a and 45b, serving as a gap through which the conveyed paper passes is gradually narrowed from the fixing device 5 to the glossing device 6. At least, the main surface on the side facing the toner surface of the paper, of the guide member 45a is smooth. COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:提供一种图像形成装置,其将抑制从定影装置排出的纸张正确地引导到输送装置,同时抑制图像质量的劣化或防止诸如卡纸和纸张折叠的故障。 图像形成装置包括:定影装置5,具有用于通过热和压力在纸上固定调色剂的辊隙N1; 在纸张传送方向上布置在定影装置5的下游并将纸传送到更下游侧的光泽装置6; 以及输送引导件45,其具有跨过定影装置5和光泽装置6之间的路径PL布置的多个引导构件45a和45b,并且由多个引导构件45a和45b保持的空间用作 输送纸通过的间隙从定影装置5逐渐变窄到光泽装置6.至少导向构件45a的面向调色剂表面的一侧的主表面是光滑的。 版权所有(C)2011,JPO&INPIT
    • 8. 发明专利
    • Image forming apparatus
    • 图像形成装置
    • JP2005024718A
    • 2005-01-27
    • JP2003188084
    • 2003-06-30
    • Ricoh Co Ltd株式会社リコー
    • MIKUTSU YASUNARI
    • G03G15/20
    • PROBLEM TO BE SOLVED: To prevent supply electric power for a rise operation of a fixing device from coming short.
      SOLUTION: The image forming apparatus is equipped with the fixing device 3 for heating and fixing the toner image formed on a recording material and a main power source unit 20 capable of supplying the electric power to the fixing device 3. The apparatus is provided with an auxiliary power source section 21 and a part (an auxiliary power source unit 22) of the electric energy thereof is used exclusively for a specific application (the rise operation of the fixing device).
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了防止定影装置的上升操作的供电电力短暂。 解决方案:图像形成装置配备有用于加热和固定形成在记录材料上的调色剂图像的定影装置3和能够向定影装置3供电的主电源单元20.该装置是 设置有辅助电源部分21和其电能的一部分(辅助电源单元22)专用于具体应用(定影装置的上升操作)。 版权所有(C)2005,JPO&NCIPI
    • 10. 发明专利
    • Failure diagnosis device, image forming device equipped with the same, and failure diagnosis method
    • 故障诊断装置,与其相同的图像形成装置和故障诊断方法
    • JP2013025060A
    • 2013-02-04
    • JP2011159546
    • 2011-07-21
    • Ricoh Co Ltd株式会社リコー
    • MIKUTSU YASUNARI
    • G03G15/20G03G21/00
    • PROBLEM TO BE SOLVED: To accurately estimate a failure of a fixing device.SOLUTION: A fixing device 20 is provided with at least a fixing belt 21 for heating and melting a toner image; a pressurizing roller 24 for forming a nip part between the fixing belt 21 and the pressurizing roller 24; a separating board 50 for separating paper from the fixing belt 21; and press-contacting/separating means 40 for changing pressure on the nip portion. The fixing device 20 is provided with current value detecting means 120 for detecting a current value of contacting/separating drive means 41 driving the press-contacting/separating means 40; occurrence number memory means 130 for memorizing a number of occurrence of paper jams occurring in the fixing device 20; and position variation calculating means 140 for calculating the variation of a tip end position detected by a distance measuring sensor 60 for detecting the tip end position on the fixing belt 21 side of the separating board 50. The occurrence of a failure of the fixing device 20 is estimated on the basis of the changes of the current value of the contacting/separating drive motor 41, the number of occurrence of the paper jams, and the variation of the tip end position of the separation board 50.
    • 要解决的问题:准确地估计定影装置的故障。 解决方案:固定装置20至少设置有用于加热和熔化调色剂图像的定影带21; 用于在定影带21和加压辊24之间形成夹持部的加压辊24; 用于从定影带21分离纸张的分离板50; 以及用于改变压合部分上的压力的压力接触/分离装置40。 定影装置20设置有电流值检测装置120,用于检测驱动压力接触/分离装置40的接触/分离驱动装置41的当前值; 发生次数存储装置130,用于存储在定影装置20中发生的卡纸的发生次数; 以及位置偏差计算装置140,用于计算由用于检测分离板50的定影带21侧的末端位置的距离测量传感器60检测的尖端位置的变化。定影装置20的故障发生 是基于接触/分离驱动马达41的当前值的变化,卡纸的发生次数以及分离板50的末端位置的变化来估计的。(COPYRIGHT:( C)2013,JPO&INPIT