Constant velocity transport for electronic document imaging
    2.
    发明授权
    Constant velocity transport for electronic document imaging 失效
    电子文档成像的恒速传输

    公开(公告)号:US5488464A

    公开(公告)日:1996-01-30

    申请号:US251064

    申请日:1994-05-31

    摘要: In a document handler for sequentially feeding document sheets over an imaging platen to be imaged with a constant velocity driven roller overlying the imaging platen, a document feeding control system which predicts when the constant velocity driven sheet feeding roller will be driven against the platen with no document sheet therebetween, an automatic lifting system which automatically lifts the feeding roller away from the platen in response to the document feeding control system predicting that no document sheet will be between the feeding roller and the platen and a forward roller driving signal being applied or when a reverse driving signal is being applied. The constant velocity feeding roller has at least four sections of two different diameters; an inner pair of common diameter feed roller surfaces and an outer pair of slightly smaller diameter surfaces on opposite sides providing document hold down and document edge detection image background. Additional constant velocity driven document sheet feeding nips are provided spaced upstream and downstream of the imaging platen and are commonly driven.

    摘要翻译: 在文件处理机中,用于将文档片材顺序地馈送在成像台板上以用成像压板上的恒速驱动辊成像的原稿输送控制系统,该原稿输送控制系统预测何时等速驱动送纸辊将被驱动抵靠压板 文件夹,其自动提升系统,其响应于文档馈送控制系统自动将进给辊提升离开台板,该文档馈送控制系统预测在进纸辊和压纸辊之间没有文档纸张,以及正向辊驱动信号被施加或何时 正在应用反向驱动信号。 恒速进给辊具有至少四个具有两个不同直径的部分; 一对共同的直径进给辊表面和相对侧上的一对稍小的直径表面的一对,提供文档压紧和文档边缘检测图像背景。 在成像台板的上游和下游间隔设置有额外的恒速驱动的文件输送辊隙,并且通常被驱动。

    Self-aligning, low jam rate idler assembly
    3.
    发明授权
    Self-aligning, low jam rate idler assembly 失效
    自动对中,低卡纸速率的惰轮总成

    公开(公告)号:US5600426A

    公开(公告)日:1997-02-04

    申请号:US220383

    申请日:1994-03-30

    CPC分类号: B65H5/062

    摘要: An idler system that is both self-centering and self-aligning with a drive roll. The idler assembly consists of a pair of rolls connected by a shaft, the shaft being supported in a housing. The housing is retained by a resilient spring member which member allows the axis of rotation of the idler rolls to pivot in more than one plane simultaneously. This pivoting causes the axis of rotation of the idler assembly to align parallel with the drive roll axis. The single spring also provides an even loading of the normal force across the width of the drive nip. As a result of the alignment and even loading, skewing of a sheet is prevented as it is driven through the nip formed by the drive roll and the idler roll. The resilient spring mounting also allows for easy replaceability of the idler assembly and the housing is easily locatable between tabs formed in the frame of the machine for mounting the idler assembly therein. The housing provides a guide from the mounting frame into the nip and from the nip into the downstream paper path for increased capacity to handle curled and/or damaged cut sheet media.

    摘要翻译: 一个惰轮系统,既可以自动定心,也可以使用驱动辊自动对准。 惰轮组件由一对由轴连接的辊组成,轴被支撑在壳体中。 壳体由弹性弹簧构件保持,该构件允许惰辊的旋转轴线在多于一个平面中同时枢转。 该枢转导致惰轮组件的旋转轴线与驱动辊轴线平行地对准。 单个弹簧还提供穿过驱动压区宽度的法向力的均匀加载。 作为对准和均匀加载的结果,当通过由驱动辊和惰辊形成的辊隙驱动时,防止片材的偏斜。 弹性弹簧安装件还允许惰轮组件的易于更换,并且壳体可容易地定位在形成在机器框架中的凸片之间,以将惰轮组件安装在其中。 壳体提供从安装框架到辊隙和从辊隙到下游纸路径的引导件,以增加处理卷曲和/或损坏的切割片介质的能力。

    Sheet stacking and reversing separator
    4.
    发明授权
    Sheet stacking and reversing separator 失效
    纸张堆叠和反转分离器

    公开(公告)号:US5549292A

    公开(公告)日:1996-08-27

    申请号:US332289

    申请日:1994-10-31

    申请人: Margaret C. Plain

    发明人: Margaret C. Plain

    摘要: In a sheet output system with a stacking tray for a reproduction apparatus, in which sheets sequentially moving in an output path are fed out from a sheet ejection nip for stacking in the stacking tray, a sheet separating assistance unit is mounted adjacent the ejection nip with three evenly circumferentially spaced radially extending sheet separating arms, with one separating arm automatically normally extending into the output path for engagement and partial rotation and translation solely by a moving sheet lead edge in the output path, while maintaining at least one separating arm in contact with the moving sheet as the moving sheet is fed out from the sheet ejection nip to provide sheet separating assistance, even if the nip reverses for duplexing. The automatic realignment of the device to a lead edge catching position after each sheet is provided by gravity with an eccentric over-center mounting system with a large triangular shaped mounting aperture.

    摘要翻译: 在具有用于再现装置的堆叠托盘的片材输出系统中,其中在输出路径中顺序移动的片材从用于在堆叠托盘中堆叠的片材排出压区送出,片材分离辅助单元安装在喷射压区附近, 三个均匀周向间隔开的径向延伸的片材分离臂,一个分离臂自动地通常延伸到输出路径中,用于仅通过输出路径中的移动的片材引导边缘进行接合和部分旋转和平移,同时保持至少一个分离臂与 作为移动片材的移动片材从片材排出压合部送出,以提供片材分离辅助,即使辊隙反转用于双面打印。 每个片材之后,设备与引线边缘捕捉位置的自动重新配置由具有大三角形安装孔的偏心中心安装系统的重力提供。

    Simplified document handler job recovery system with reduced memory
duplicate scanned image detection
    5.
    发明授权
    Simplified document handler job recovery system with reduced memory duplicate scanned image detection 失效
    简化的文档处理程序作业恢复系统,具有减少的内存重复的扫描图像检测

    公开(公告)号:US5532839A

    公开(公告)日:1996-07-02

    申请号:US334994

    申请日:1994-10-07

    摘要: In a digital imaging document handling system for sequentially feeding plural document sheets in a document feeding path from a document input to an electronic imaging station, wherein document sheet feeding stoppages in the document feeding path are detectable, a simplified job recovery system is provided by providing a duplicate image detection system for the automatic deletion of duplicate electronic document page images. The duplicate page images may be detected efficiently without full image comparisons by checksumming the pixels of multiple cell areas for the page, deleting the least significant figures, and comparing the respective cell checksums. In response to a sheet feeding stoppage signal instructions may be displayed for simply removing the document sheets in the document feeding path and reloading them into the document input irrespective of whether or not the removed document sheets have already been electronically imaged, and refeeding all the removed document sheets path from the document input to the electronic imaging station to be electronically imaged.

    摘要翻译: 在用于从原稿输入到电子成像站的文档馈送路径中顺序地馈送多张原稿的数字成像文件处理系统中,其中可检测文件馈送路径中的文件供纸停止页面,通过提供简单的作业恢复系统 用于自动删除重复的电子文档页面图像的重复图像检测系统。 通过对页面的多个单元区域的像素进行校验和,删除最低有效图形以及比较各个单元校验和,可以有效地检测重复页面图像,而无需进行全图像比较。 响应于片材进给停止信号,可以显示指令,以便简单地移动文件馈送路径中的文档片材并将其重新加载到文档输入中,而不管移除的文档片材是否已经被电子地成像,并且重新将所有被移除 从文档输入到电子成像站的文档片材路径以电子地成像。