Sheet forwarding apparatus for determining causes of feeding defects
    1.
    发明授权
    Sheet forwarding apparatus for determining causes of feeding defects 失效
    用于确定供给缺陷的原因的片材转发装置

    公开(公告)号:US5395106A

    公开(公告)日:1995-03-07

    申请号:US151117

    申请日:1993-11-12

    CPC分类号: G03G15/6502

    摘要: A sheet feeding unit includes a sheet forwarding unit for forwarding sheets from a sheet storing unit, a key input portion, a sheet detection gate, and a control unit. In one embodiment, the sheet forwarding unit repetitively performs its function after an operation start instruction until either the sheet detection gate detects a sheet from the feeding cassette or until the number of repetitions of the sheet forwarding unit reaches a predetermined number. An error process is performed when the number of repetition reaches the predetermined number without the gate detecting a sheet. Also, the sheet feeding unit compares the number of times a sheet is fed from the sheet feeding unit with the number of times the sheet if forwarding to determine the status of the feeding roller.

    摘要翻译: 送纸单元包括用于从纸张存储单元,键输入部分,纸张检测门和控制单元转送纸张的纸张转发单元。 在一个实施例中,片材转发单元在操作开始指令之后重复执行其功能,直到片材检测门检测到来自馈送盒的片材或直到片材转发单元的重复次数达到预定数量。 当重复次数达到预定数量而没有门检测到纸张时,执行错误处理。 此外,送纸单元将从供纸单元供纸的次数与纸张的次数进行比较,以确定进纸辊的状态。

    Micro computer controlled image forming apparatus
    2.
    发明授权
    Micro computer controlled image forming apparatus 失效
    微电脑控制图像形成装置

    公开(公告)号:US5355196A

    公开(公告)日:1994-10-11

    申请号:US105779

    申请日:1993-08-12

    摘要: An encoder is connected to the drive system of the optical system of an image forming apparatus including an optical system for exposing a document image to a light and scanning the document image, a home position switch for detecting the optical system when it comes to the vicinity of the starting position, and a resist roller for setting the feeding start timing of a transfer sheet to the transfer section, and, on reproducing the above document image on a transfer sheet, when the pulse signals coming from the encoder, which are counted from the time when the optical system passes through the home position switch, reach the appointed value, the above resist roller operates.

    摘要翻译: 编码器连接到图像形成装置的光学系统的驱动系统,该图像形成装置包括用于将文件图像曝光并扫描原稿图像的光学系统,当到达附近时检测光学系统的原位开关 以及用于将转印纸的进给开始定时设置到转印部分的阻挡辊,并且当从转印纸上再现上述原稿图像时,当来自编码器的脉冲信号从 当光学系统通过原位置开关的时间达到指定值时,上述阻尼辊运行。

    Image forming apparatus with potential control
    3.
    发明授权
    Image forming apparatus with potential control 失效
    具有电位控制的图像形成装置

    公开(公告)号:US4939542A

    公开(公告)日:1990-07-03

    申请号:US349850

    申请日:1989-05-10

    IPC分类号: G03G15/02

    CPC分类号: G03G15/0266

    摘要: An image forming apparatus having a potential sensor for measuring a potential at the surface of a photoreceptor drum; a voltage generation circuit for generating a voltage lower than a voltage to be actually induced at the surface of the photoreceptor drum in the course of image formation; switching means for switching a condition so that the photoreceptor is connected to the voltage generation circuit or earthed; and charger-output control means for obtaining a value of a surface potential of the photoreceptor measured by the potential sensor at the time when a voltage form the voltage generation circuit is applied to the photoreceptor by operating the switching means, estimating by arithmetic operation, on the basis of the measured value thus obtained, a value to be measured by the potential sensor when a high voltage is actually induced at the photoreceptor surface in the course of the image formation, and controlling an output from the charger based on the value estimated by the above arithmetic operation when a voltage is applied to the photoreceptor surface by the charger prior to image forming operation.

    摘要翻译: 一种图像形成装置,具有用于测量感光鼓表面的电位的电位传感器; 电压产生电路,用于在图像形成过程中产生低于感光鼓表面实际感应的电压的电压; 切换装置,用于切换条件以使感光体连接到电压产生电路或接地; 以及充电器输出控制装置,用于通过操作开关装置获得电压传感器测得的感光体的表面电位值,该电压值由电压产生电路施加到感光体上时,通过算术运算估计 由此获得的测量值的基础,当在图像形成过程中当在感光体表面实际感应到高电压时由电位传感器测量的值,以及基于由图像形成估计的值来控制来自充电器的输出的值 在图像形成操作之前通过充电器将电压施加到感光体表面的上述算术运算。

    Sheet transport device and automatic document feeder
    4.
    发明授权
    Sheet transport device and automatic document feeder 有权
    纸张输送装置和自动送纸器

    公开(公告)号:US06209861B1

    公开(公告)日:2001-04-03

    申请号:US09264701

    申请日:1999-03-08

    IPC分类号: B65H522

    摘要: A sheet transport device is provided with a sheet inverting mechanism for retracting a sheet transported along a main transport route into a switchback route to invert the sheet transport direction and returning the sheet into the main transport route to turn the side of the sheet. The sheet transport device has a pair of sheet guides adapted in contact with respective opposite ends of the sheet set on a sheet setting portion to prevent a skew transport of the sheet. The sheet temporarily brought onto the sheet setting portion during a switchback operation from the switchback route is guided between of the sheet guides on the sheet setting portion. During the temporal appearance on the sheet setting portion, the opposite ends of the sheet are aligned by the respective sheet guides. Thereby, securely prevented is an occurrence of a skew transport state of the sheet during the switchback operation.

    摘要翻译: 片材输送装置设有用于使沿着主输送路线输送的纸张收回到折返路径中的纸张反转机构,以反转纸张输送方向并将纸张返回主传送路线以转动纸张的侧面。 片材输送装置具有一对片材引导件,其适于与设置在片材设置部分上的片材的相应相对端接触,以防止片材的偏斜传送。 在转折路径的回转操作期间暂时带到纸张设定部分上的纸张被引导在纸张设置部分上的纸张引导件之间。 在片材设置部分的颞部外观中,片材的相对端部通过各个片材引导件对准。 由此,可靠地防止在回转操作期间纸张的偏斜传送状态的发生。

    Automatic document conveyer
    5.
    发明授权
    Automatic document conveyer 失效
    自动文件输送机

    公开(公告)号:US6145827A

    公开(公告)日:2000-11-14

    申请号:US352143

    申请日:1999-07-13

    IPC分类号: B65H5/02 G03G15/00 B65H5/22

    CPC分类号: G03G15/605 G03G15/60

    摘要: An automatic document conveyer comprising a moving frame turnably mounted on a machine housing via a hinge mechanism and a conveyer belt mechanism mounted on the moving frame. The conveyer belt mechanism includes a support frame, a drive roller and a driven roller arranged in the support frame, and a conveyer belt wrapped round the drive roller and the driven roller. The support frame of the conveyer belt mechanism is so supported as to be moved by a predetermined amount toward the side opposite to the hinge mechanism while the end of the conveyer belt on the side of the hinge mechanism reaches to the closed position after having come in contact with the transparent plate at the time when the moving frame is turned toward the closed position.

    摘要翻译: 一种自动文件传送器,包括经由铰链机构可转动地安装在机器壳体上的移动框架和安装在移动框架上的传送带机构。 输送带机构包括布置在支撑框架中的支撑框架,驱动辊和从动辊以及缠绕在驱动辊和从动辊上的输送带。 输送带机构的支撑框架被支撑为向与铰链机构相反的一侧移动预定量,同时在输入带的端部在铰链机构的一侧到达闭合位置之后进入 在移动框架转向关闭位置时与透明板接触。

    Document transporting device and method and image reading device
provided with the document transporting device
    8.
    发明授权
    Document transporting device and method and image reading device provided with the document transporting device 有权
    具有文件传送装置的文件传送装置和方法以及图像读取装置

    公开(公告)号:US5991592A

    公开(公告)日:1999-11-23

    申请号:US196305

    申请日:1998-11-19

    摘要: A document fed from a document tray to a first transport path is guided to a document inverting unit to invert a transport direction of the document. Subsequently, the document is transported to an image reader unit along a second transport path for image data reading on the opposite side of the document opposite to a side facing upward when set on the document tray. Then, the document is guided to the document inverting unit again via a fourth transport path intersecting a third transport path at a first intersecting point to invert the transport direction of the document again. Thereafter, the document is transported to the image reading unit again via the second transport path for image data reading on the one side of the document. The document is discharged onto a discharge tray via the third transport path with the one side facing downward.

    摘要翻译: 从文件托盘馈送到第一传送路径的文件被引导到原稿翻转单元以反转文档的传送方向。 随后,当设置在文件托盘上时,文档沿着第二传送路径被传送到图像读取单元,用于图像数据读取。 然后,通过在第一交点处与第三输送路径交叉的第四输送路径再次将文件引导到文件反转单元,以反转文件的输送方向。 此后,文件经由第二传送路径再次传送到图像读取单元,用于在文档的一面上进行图像数据读取。 文件通过第三输送路径排出到排出托盘上,其一面朝下。

    Photoconductive drum device for electrostatic copying machines or the
like
    9.
    发明授权
    Photoconductive drum device for electrostatic copying machines or the like 失效
    用于静电复印机等的感光鼓装置

    公开(公告)号:US4659206A

    公开(公告)日:1987-04-21

    申请号:US737611

    申请日:1985-05-23

    CPC分类号: G03G15/751

    摘要: A photoconductive drum device for electrostatic copying machines or the like includes a temperature maintaining heater bent to a cylindrical form and accommodated in the main body of a photoconductive drum. The heater is constructed with a base plate and a heat generator attached to the base plate. The base plate has a parallelogrammatic form substantially corresponding to a shape which is obtained by cutting a hollow cylinder, having a diameter approximate to the inside diameter of the drum main body, along a helical cut line and unbending the cylinder.

    摘要翻译: 用于静电复印机等的感光鼓装置包括弯曲成圆柱形并且容纳在感光鼓的主体中的温度维持加热器。 加热器构造有底板和附接到基板的发热体。 基板具有基本上对应于通过沿着螺旋切割线切割具有近似于滚筒主体的内径的直径的中空圆筒并且使圆筒不弯曲而获得的形状的平行四边形形式。

    Automatic document feeder
    10.
    发明授权
    Automatic document feeder 失效
    自动送纸器

    公开(公告)号:US4620782A

    公开(公告)日:1986-11-04

    申请号:US631678

    申请日:1984-07-17

    IPC分类号: G03B27/62 B65H5/02 B65H7/14

    CPC分类号: G03B27/6257

    摘要: An automatic document feeder, comprising a document supply section for supplying documents one by one toward a document platen, a belt feed section for transferring a supplied document to a predetermined position on the document platen to enable an image forming operation, and a document discharge section for discharging onto a document discharge tray a document fed from the belt feed section upon completion of the image forming operation, is attached so that it is upwardly turnable with respect to the document platen so as to enable manual and automatic document settings to be made selectively. Further, the automatic document feeder is designed to discriminate between manual and automatic document setting modes and to detect the presence or absence of a document at a predetermined position in the automatic document feeder when the automatic document setting mode is selected. The automatic document feeder is driven with a predetermined timing for the setting of documents.

    摘要翻译: 一种自动文件馈送器,包括一个文件供应部分,用于将文件一个一个地提供给一个原稿台;一个传送带馈送部分,用于将所提供的文稿传送到原稿台上的预定位置,以便进行图像形成操作;以及文件排出部分 为了排出到文件排出托盘,在完成图像形成操作时从带馈送部分馈送的文档被附接成使得其相对于原稿台可向上转动,使得能够选择性地进行手动和自动文档设置 。 此外,自动文档进给器被设计为当选择自动文档设置模式时,区分手动和自动文档设置模式并且在自动文档进纸器中的预定位置处检测文档的存在或不存在。 自动进纸器以预定的时间被驱动,用于设置文件。