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30 条记录 (耗时 0.011 秒)

    Apparatus for deskewing and side registering a sheet
    2.
    发明公开
    Apparatus for deskewing and side registering a sheet 失效
    用于纠偏和侧面记录纸张的设备

    公开(公告)号：EP0541260A3

    公开(公告)日：1994-04-20

    申请号：EP92309401.5

    申请日：1992-10-15

    申请人： XEROX CORPORATION

    发明人： Roller, George J.

    IPC分类号： G03G15/00 ,  B65H7/08

    CPC分类号： B65H9/20 ,  B65H9/002 ,  B65H9/006 ,  B65H2220/09 ,  B65H2301/331 ,  B65H2403/944 ,  B65H2404/14 ,  B65H2511/242 ,  B65H2220/01

    摘要： An apparatus and method to deskew sheets (100) in a short paper path in an electrophotographic printing machine by differentially driving two sets of rolls so as to create a paper buckle buffer zone (102) in the sheet (100) and then differentially driving a roll set (24,25,26,27) to correct the skew while the sheet (100) is still within the nips of multiple drive roll sets (24,25,26,27,34,35,36,37). Contrary to stalled roll techniques, leading edge damage to sheets is eliminated as the deskewing rolls are initially traveling at the same velocity as the sheet. Plural leading edge detectors (96,97) are used to measure the skew.

    摘要翻译： 一种装置和方法，用于通过差动地驱动两组辊来在电子照相印刷机中的短路径中偏斜片材（100），以在片材（100）中形成纸带扣缓冲区（102），然后差动地驱动 （24,25,26,27）以纠正片材（100）仍处于多个驱动辊组（24,25,26,27,34,35,36,37）的辊隙内时的偏斜。 与停顿辊技术相反，由于倾斜辊最初以与片材相同的速度移动，所以消除了片材的前缘损坏。 多个前缘探测器（96,97）用于测量歪斜。

    Copiers with side-registration systems
    3.
    发明公开
    Copiers with side-registration systems 失效
    具有侧面注册系统的复合体

    公开(公告)号：EP0425249A3

    公开(公告)日：1991-10-09

    申请号：EP90311619.2

    申请日：1990-10-23

    申请人： XEROX CORPORATION

    发明人： Roller, George J.

    IPC分类号： G03G15/00 ,  B65H9/10

    CPC分类号： B65H9/166 ,  B65H2301/36 ,  B65H2701/1311 ,  G03G15/6564 ,  G03G15/6567 ,  G03G2215/00405 ,  G03G2215/00561

    摘要： A dynamic edge guide (100, 125) for use in a sheet side-edge registration system may include a moving belt (101) having raised ridges (103, 104) thereon that form a channel into which the side-edge of a sheet to be registered is inserted sheets moved through the registration system by a transport device are side registered against the belt by a scuffer mechanism (81,82), with the transport device and belt moving at substantially the same speed. In this manner, any force tending to show a sheet being registered has nothing added to it by the contact between the sheet and the edge guide. The belt (101) may be replaced by a series of rotary contact rolls (125).

    Ink-jet copier in which an original image is prescanned for optimized printing
    4.
    发明公开
    Ink-jet copier in which an original image is prescanned for optimized printing 失效
    喷墨复印机，其中原始图像被预扫以优化打印

    公开(公告)号：EP0905965A2

    公开(公告)日：1999-03-31

    申请号：EP98304078.3

    申请日：1998-05-22

    申请人： Xerox Corporation

    发明人： Silverberg, Morton ,  Roller, George J.

    IPC分类号： H04N1/17

    CPC分类号： H04N1/233 ,  H04N1/17 ,  H04N1/2307 ,  H04N1/2369 ,  H04N2201/0416

    摘要： In a digital copier in which the copies are made with a reciprocating inkjet printhead, the original image to be copied is pre-scanned at high speed and low resolution, to identify an area in the original image having white space. If the white-space area in the original image is sufficiently large, the action of the printhead can be adapted to skip the corresponding area in the copy sheet in the printing process, thus increasing the overall throughput of the digital copier. An analogous technique can be used to identify non-halftone or non-color portions of an original image, which can be printed with fewer than a maximum number of passes of the printhead over a specific area of the copy sheet.

    摘要翻译： 在使用往复式喷墨打印头制作复印件的数字复印机中，要复印的原始图像以高速和低分辨率预先扫描，以识别原始图像中具有白色空间的区域。 如果原始图像中的空白区域足够大，则可以使打印头的动作适应于在打印过程中跳过复印纸中的相应区域，从而增加数字复印机的整体吞吐量。 可以使用类似的技术来识别原始图像的非半色调或非彩色部分，该原始图像可以在打印头通过复印纸的特定区域的次数少于最大次数的情况下打印。

    Fluid ejection systems
    9.
    发明公开
    Fluid ejection systems 有权
    Systeme zum Ausstossen vonFlüssigkeit

    公开(公告)号：EP1208982A2

    公开(公告)日：2002-05-29

    申请号：EP01309522.9

    申请日：2001-11-12

    申请人： Xerox Corporation

    发明人： Gooray, Arthur M. ,  Roller, George J. ,  Galambos, Paul ,  Peter, Frank J. ,  Zavadil, Kevin ,  Givler, Richard C. ,  Crowley Jnr., Joseph

    IPC分类号： B41J2/04

    CPC分类号： B41J2/14314

    摘要： A bi-directional fluid ejector (200) operates on the principle of electrostatic attraction. The fluid ejector includes a sealed dual diaphragm arrangement (210), an electrode arrangement (220,222) that is parallel and opposite to the sealed diaphragms, and a structure (240) which contains the fluid to be ejected. A diaphragm chamber (216,218) containing a relatively incompressible fluid is situated behind, and is sealed by, the diaphragms (210). At least one nozzle hole (242,244) is formed in a faceplate of the ejector over one of the diaphragms (210). A drive signal is applied to at least one electrode (220,222) of the electrode arrangement to generate an electrostatic field between the electrode (220,222) and a first one of the diaphragms (210). The first diaphragm is attracted towards the electrode (222) by an electrostatic force into a deformed shape due to the electrostatic field. Upon deforming, pressure is transmitted to a second one of the sealed diaphragms (210). The transmitted pressure and the relatively incompressible nature of the fluid contained within the sealed diaphragm chamber (218) causes the second diaphragm (210) to deflect in the opposite direction to force fluid through at least one of the at least one nozzle hole (242). After a drop is ejected, the movement is reversed, either through normal resilient restoration actions of the deformed diaphragm (210) and/or through an applied force generated by the other electrode (220).

    摘要翻译： 双向流体喷射器（200）以静电吸引原理工作。 流体喷射器包括密封的双隔膜装置（210），与密封隔膜平行和相对的电极装置（220,222）和包含要喷射的流体的结构（240）。 包含相对不可压缩流体的隔膜室（216,218）位于隔膜（210）的后面并被隔膜（210）密封。 至少一个喷嘴孔（242,244）形成在喷射器的面板中的一个隔膜（210）上。 驱动信号被施加到电极装置的至少一个电极（220,222），以在电极（220,222）和第一隔膜（210）之间产生静电场。 第一隔膜由于静电场而被静电力吸引到变形形状的电极（222）上。 在变形时，压力传递到密封隔膜（210）中的第二个。 包含在密封隔膜室（218）内的流体的传输压力和相对不可压缩的性质导致第二隔膜（210）在相反方向上偏转以迫使流体通过至少一个喷嘴孔（242）中的至少一个， 。 在液滴被弹出之后，运动通过变形膜片（210）的正常弹性恢复动作和/或通过另一电极（220）产生的施加力来反转。

    High capacity dual tray variable sheet size sheet feeder
    10.
    发明公开
    High capacity dual tray variable sheet size sheet feeder 失效
    ZuführvorrichtunghoherKapazitätfürBogen unterschiedlicherGrössemit zwei Magazinen。

    公开(公告)号：EP0601734A1

    公开(公告)日：1994-06-15

    申请号：EP93309335.3

    申请日：1993-11-23

    申请人： XEROX CORPORATION

    发明人： Martin, Michael J. ,  Roller, George J. ,  Van Dongen, Richard

    IPC分类号： B65H1/26

    CPC分类号： B65H1/266 ,  B65H2801/21

    摘要： A variable sheet sized sheet feeder adapted to be reloaded while running in a dual tray mode. A dual tray sheet feeder having a sheet transport (121) to reload a stack of sheets from a holding station (104) to an active feed station (102) is provided. The dual tray design allows the holding station to be reloaded while the active tray is feeding thereby providing load while run capability. The feed tray is further provided with tray extensions (103) to allow the loading and feeding of oversized sheets within the same confines. Multiple sensors and movable stack guides (112,114) are provided to allow the transfer of the sheet stack from one tray to another and to report the status of each tray to the operator through a user interface.

    摘要翻译： 一种可变纸张尺寸的进纸器，适用于在双托盘模式下运行时重新加载。 提供一种具有片材输送器（121）的双托盘片材进给器，用于将一堆片材从保持站（104）重新装载到主动进给站（102）。 双托盘设计允许在活动托盘进给时重新加载保持站，从而在运行能力时提供负载。 进料托盘还设置有托盘延伸部（103），以允许在相同的范围内装载和进给超大的片材。 提供多个传感器和可移动堆叠引导件（112,114）以允许片材堆叠从一个托盘传递到另一个托盘，并且通过用户界面将每个托盘的状态报告给操作者。