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    • 1. 发明专利
    • 自動搬送読取装置およびこれを備えた画像形成装置
    • 自动进纸和读取装置,以及包括其的图像形成装置
    • JP2015023395A
    • 2015-02-02
    • JP2013149548
    • 2013-07-18
    • 株式会社リコーRicoh Co Ltd
    • KANEYA ATSUSHIKUBO HIROSHIKITAOKA SHINYAAKAI TAKESHIHEIJI FUMIYUKIBANNO HIROKI
    • H04N1/00B65H5/36G03B27/62G06T1/00H04N1/04
    • 【課題】原稿の裏面読み取りにCISを用いるADFにおいて、コストアップを招くことなしに、異常画像の発生を抑止できるようにする。【解決手段】例えば、ジャム紙の除去や清掃のために開閉可能に設けられた、原稿を搬送経路上の読取位置に案内するためのガイドユニットの閉状態が不十分な場合、第2読取部による第2読取ローラの読み取りを行って、シェーディングデータを生成する(S11)。こうして得たシェーディングデータを、基準となる比較用の白基準データと比較し(S12)、その比較の結果に基づいて、搬送経路の開閉状態を判定する(S13)。異常有の場合、ガイドユニットが半開状態であることをユーザに通知し(S14)、実際の原稿読取動作を実行する前に、ガイドユニットを確実に閉じるように促すように構成されている。【選択図】図7
    • 要解决的问题:使用CIS抑制ADF中的异常图像的发生,以读取文件的后表面而不会增加成本。解决方案:当导向单元未被充分闭合时,其设置在可打开/ 可拆卸的方式去除或清洁卡住的纸张并将文件引导到传送路径上的读取位置,自动馈送和读取装置使得第二读取单元读取第二读取辊以创建阴影数据(S11)。 自动馈送和读取装置将如此获得的阴影数据与白参考数据进行比较以作为参考(S12),并且基于比较结果确定输送路径的打开/关闭状态(S13)。 当发生异常时,自动进给和读取装置通知用户导向单元半开(S14),并且在执行实际文档读取操作之前提示用户确保关闭导向单元。
    • 2. 发明专利
    • 原稿搬送装置、画像読取装置、及び画像形成装置
    • 文件传送装置,图像读取装置和图像形成装置
    • JP2014223955A
    • 2014-12-04
    • JP2013102784
    • 2013-05-15
    • 株式会社リコーRicoh Co Ltd
    • BANNO HIROKIKUBO HIROSHIKITAOKA SHINYAAKAI TAKESHIKANEYA ATSUSHIHEIJI FUMIYUKI
    • B65H3/06G03G15/00H04N1/00
    • 【課題】原稿の取込み口からの音漏れが抑制されつつ装置の大型化も抑えられる原稿搬送装置、そのような原稿搬送装置を備えた画像読取装置及び画像形成装置を提供する。【解決手段】原稿Pを内部に取り込んで所定の搬送路に沿って搬送する原稿搬送装置において、原稿Pの取込み口113aが設けられた筺体と、原稿Pが積載される積載部120と、前記積載部120上の最上層の原稿Pを前記筺体の内部に取り込むピックアップローラ131と、前記筺体内で、原稿Pの通過を許容しつつ取込み口113aを遮蔽し得る遮蔽位置と、遮蔽位置よりも高さ関係が上方で取込み口113aを開放しつつもピックアップローラ131よりも高さ関係が下方となる開放位置との間を移動可能に構成された遮蔽部材135と、原稿Pの非取込み時には、前記遮蔽部材135を、前記開放位置へと移動させる開放機構と、を有する。【選択図】図5
    • 要解决的问题:提供:用于抑制从文件导入口发出的声音泄漏并保持装置的尺寸的文件传送装置; 包括这种文件传送装置的图像读取装置和图像形成装置。解决方案:用于在内部引入文档P并沿着给定的传送路径传送文档的文档传送装置包括:具有引入端口 113a,用于放置在其中的文件P. 用于堆叠文件P的堆叠部分120; 用于将文件P引入到底盘内的拾取辊131,该文档位于堆叠部分120的最上层; 屏蔽构件135,其可移动地设置在能够在允许文件P通过的同时屏蔽引入口113a的屏蔽位置和用于打开位置高于屏蔽位置的文件P的引入口113a的打开位置 并且位置比拾取辊131低; 以及用于当没有文件P被引入时将屏蔽构件135移动到打开位置的打开机构。
    • 4. 发明专利
    • Automatic document feeder and image formation apparatus including the same
    • 自动文件进纸器和图像形成装置,包括它们
    • JP2013247575A
    • 2013-12-09
    • JP2012121163
    • 2012-05-28
    • Ricoh Co Ltd株式会社リコー
    • UDAGAWA HIROAKIKUBO HIROSHIKITAOKA SHINYASHIMAZU TAKEHISAAKAI TAKESHIHEIJI FUMIYUKIKIMURA NORIOSUZUKI YOSHITOYAMADA ATSUSHI
    • H04N1/00B65H1/00G03G15/00H02P29/00H02P29/02H04N1/04
    • G03G15/607G03G15/70
    • PROBLEM TO BE SOLVED: To provide an automatic document feeder in which false detection of opening/closing of the cover of an interlock switch, having an intermittent power supply function to a drive element and a cover opening/closing detection function, can be prevented.SOLUTION: The automatic document feeder includes an interlock switch 82 having a terminal 82a to which a first voltage V1 for driving a drive motor is input, and a terminal 82b to be connected with the drive motor, and being turned on/off by opening/closing of a paper feed cover, and an opening/closing detection circuit 17. The opening/closing detection circuit 17 have a Zener diode 91, and a transistor 93. The Zener diode 91 is turned on/off based on a threshold voltage Vs that is larger than a second voltage Vt generated in the drive motor by the operation of taking out a jammed document but smaller than the first voltage V1. The transistor 93 detects that the paper feed cover is in closed state when it is in the electrification state, and detects that the paper feed cover is in open state when it is in the non-electrification state.
    • 要解决的问题:提供一种自动进纸器,其中可以防止对驱动元件具有间歇电源功能的联锁开关的盖的打开/关闭的错误检测和盖打开/关闭检测功能。 解决方案:自动进稿器包括具有输入用于驱动驱动马达的第一电压V1的端子82a和与驱动马达连接的端子82b的互锁开关82,通过打开/ 打开/关闭检测电路17.打开/关闭检测电路17具有齐纳二极管91和晶体管93.齐纳二极管91基于阈值电压Vs导通/截止,阈值电压Vs为 大于通过取出卡住文件但小于第一电压V1的操作而在驱动电动机中产生的第二电压Vt。 当处于通电状态时,晶体管93检测到送纸盖处于关闭状态,并且当它处于非通电状态时检测到供纸盖处于打开状态。
    • 5. 发明专利
    • Document conveying device, image reading device, and image forming apparatus
    • 文件传送装置,图像读取装置和图像形成装置
    • JP2013189309A
    • 2013-09-26
    • JP2012058840
    • 2012-03-15
    • Ricoh Co Ltd株式会社リコー
    • HEISHI FUMIYUKIKUBO HIROSHIFUJII TAKASHIKITAOKA SHINYAAKAI TAKESHISHIMAZU TAKEHISAARIGA TAKUMASUZUKI MICHITAKASUZUKI YOSHITOYAMADA ATSUSHISAITO SATOSHIMORITA KENICHIROOKAMOTO IKUHISAHAYASAKA KENJIUDAGAWA HIROAKI
    • B65H3/06
    • H04N1/0062B65H3/0684B65H3/5261B65H5/025H04N1/00628H04N1/00655H04N2201/0091
    • PROBLEM TO BE SOLVED: To provide a document conveying device capable of preventing wrong assembly, an image reading device, and an image forming apparatus.SOLUTION: In a document conveying device 51 comprising: a document placing table 9 on which a document bundle comprising a plurality of documents is placed; a rotating shaft member 15a detachably provided on a device body and rotated by rotary driving force transmitted from a driving source; a feeding member 10 attached to the rotating shaft member via a driving force transmitting member and brought into contact with the topmost document of the document bundle placed on the document placing table to feed the document; a separating means 11 attached to the rotating shaft member, for separating one sheet from the plurality of documents fed by the feeding member; a plurality of turning members turnably attached to the rotating shaft member; and a holding member 17 being one of the plurality of turning members, holding the feeding member together with the driving force transmitting member, and detachably attached to the rotating shaft member, the document conveying device includes turning member posture restricting means 1a, 2a restricting a posture the other turning member to a preset predetermined position with reference to the posture of the holding member.
    • 要解决的问题:提供一种能够防止错误组装的文件传送装置,图像读取装置和图像形成装置。解决方案:在文件传送装置51中,包括:文档放置台9,文档夹包括: 放置多张文件; 旋转轴构件15a,其可拆卸地设置在装置主体上并且通过从驱动源传递的旋转驱动力旋转; 馈送构件10,经由驱动力传递构件附接到旋转轴构件并与放置在文件放置台上的文件夹的最上面的文件接触以馈送文件; 分离装置11,其安装在旋转轴构件上,用于将一个片材与由馈送构件馈送的多个文件分开; 多个转动构件可转动地安装在旋转轴构件上; 以及作为多个转动构件中的一个的保持构件17,将驱动力传递构件与供给构件一起保持,并且可拆卸地安装在旋转轴构件上,文件传送装置包括转动构件姿势限制装置1a,2a, 参考保持构件的姿势将另一个转动构件置于预定的预定位置。
    • 7. 发明专利
    • Document feeder, image reader, and image forming apparatus
    • 文件进纸器,图像读取器和图像形成装置
    • JP2011109257A
    • 2011-06-02
    • JP2009260150
    • 2009-11-13
    • Ricoh Co Ltd株式会社リコー
    • MORITA KENICHIROFUJII TAKASHIKUBO HIROSHINAGANO TATSUAKIKANBAYASHI MAMORUAKAI TAKESHISATO SHOICHI
    • H04N1/00B65H5/06G03G15/00H04N1/04
    • PROBLEM TO BE SOLVED: To provide a document feeder which prevents a document from coming off a carrying belt even in the case of the occurrence of difference in speed between the carrying belt and a document carrying unit adjacent to the carrying belt, to provide an image reader, and to provide an image forming apparatus.
      SOLUTION: A carrying force changing mechanism 110 is controlled so that a carrying force of a reading entrance roller pair 89 is made weaker than a prescribed carrying force by the time when a front end of a document reaches a reading position after reaching a carrying belt 94. A downstream carrying force changing mechanism 120 is controlled so that a carrying force of a reading exit roller pair 90 is made weaker than a prescribed carrying force by the time when the front end of the document reaches the reading exit roller pair 90, and is restored to the prescribed carrying force by the time when a rear end of the document is separated from the carrying belt 94 after reaching the reading position.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 解决的问题:为了提供一种文件进给器,即使在传送带和与传送带相邻的文件传送单元之间的速度差异的情况下,也可以防止文件从传送带脱落, 提供图像读取器,并提供图像形成装置。 解决方案:控制承载力改变机构110,使得当文档的前端到达读取位置之后,读取入口辊对89的承载力比规定的承载力弱 控制下游承载力改变机构120,使得当文件的前端到达读出口辊对90时,读出口辊对90的承载力比规定的承载力弱 并且在到达读取位置之后文件的后端与传送带94分离的时候恢复到规定的携带力。 版权所有(C)2011,JPO&INPIT
    • 8. 发明专利
    • Image reader, image formation device, and reading control method
    • 图像读取器,图像形成装置和读取控制方法
    • JP2010268043A
    • 2010-11-25
    • JP2009115496
    • 2009-05-12
    • Ricoh Co Ltd株式会社リコー
    • NAGANO TATSUAKIFUJII TAKASHIKOSUGA YASUOMORITA KENICHIROAKAI TAKESHIKUBO HIROSHI
    • H04N1/19G03B27/52G03B27/62G06T1/00H04N1/04
    • PROBLEM TO BE SOLVED: To provide an image reader capable of detecting dust on contact glass located at a fixed reading position for reading a transported document, and preventing image degradation by the dust, and to provide an image formation device mounted with the same.
      SOLUTION: In this image reader for reading a transported document P at the reading position on the contact glass 41, when presence of dust at the reading position on the glass surface is detected using a transmission-type optical sensor arranged so that the optical path of detection light permeates in a main-scanning direction in reading the document, a movement means moves the contact glass 41 in a sub-scanning direction until it is not detected.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种图像读取器,其能够检测位于固定读取位置的接触玻璃上的灰尘,用于读取传送的文件,并防止灰尘的图像劣化,并提供安装有图像形成装置的图像形成装置 相同。 解决方案:在用于读取接触玻璃41上的读取位置的传送文件P的图像阅读器中,当使用透射型光学传感器检测玻璃表面上的读取位置处的灰尘存在时, 检测光的光路在读取文件时沿主扫描方向渗透,移动装置使接触玻璃41沿副扫描方向移动,直到检测不到。 版权所有(C)2011,JPO&INPIT
    • 10. 发明专利
    • Image reading apparatus and image forming apparatus
    • 图像读取装置和图像形成装置
    • JP2010028164A
    • 2010-02-04
    • JP2008183380
    • 2008-07-15
    • Ricoh Co Ltd株式会社リコー
    • KUBO HIROSHISANO MOTOYAHIDAKA MAKOTOKOSUGA YASUOFUJII TAKASHIAKAI TAKESHIKITAOKA SHINYAKANEYA ATSUSHIMATSUSHITA SHINGOKIMURA NORIOMORITA KENICHIRONAGANO TATSUAKI
    • H04N1/19H04N1/00H04N1/04
    • PROBLEM TO BE SOLVED: To obtain an image reading apparatus, capable of preventing occurrence of black streaks on a recorded image and preventing disturbance of the recorded image such as color deviation and deflection of straight lines, and to obtain an image forming apparatus equipped with the image reading apparatus.
      SOLUTION: The image reading apparatus 3 includes: a reading entrance roller pair 27 for carrying an original document to an image reading position 20; a guide member 51 for guiding the original document carried by the reading entrance roller pair 27 to the upper part of a contact glass 16 and capable of moving in the original document transport direction; a moving mechanism for moving the guide member 51; and a control section 39 for controlling the moving mechanism. The control section 39 allows the guide member 51 for guiding the original document, to move from the home position H of an upstream side of the image reading position 20 to the vicinity of the image reading position 20, from the time the rear end of the original document passes through the position opposing a resist sensor 18 to the time, when the rear end of the original document passes through the image reading position 20.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了获得能够防止记录图像上出现黑色条纹并防止记录图像的干扰,例如颜色偏差和直线偏转的图像读取装置,并且获得图像形成装置 配备了图像读取装置。 解决方案:图像读取装置3包括:读取入口辊对27,用于将原始文件传送到图像读取位置20; 引导构件51,用于将由读取入口辊对27携带的原稿引导到接触玻璃16的上部,并能够沿原稿传送方向移动; 用于移动引导构件51的移动机构; 以及用于控制移动机构的控制部39。 控制部39允许引导构件51引导原稿,从图像读取位置20的上游侧的原始位置H移动到图像读取位置20的附近,从图像读取位置20的后端开始 当原稿的后端通过图像读取位置20时,原稿通过与抗蚀剂传感器18相对的位置。(C)2010,JPO&INPIT