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    Software system for minimizing image defects in a hard-copy input scanner
    1.
    发明授权
    Software system for minimizing image defects in a hard-copy input scanner 有权
    用于最小化硬拷贝输入扫描仪图像缺陷的软件系统

    公开(公告)号：US06393161B1

    公开(公告)日：2002-05-21

    申请号：US09299396

    申请日：1999-04-26

    申请人： Duncan I. Stevenson ,  Ian A. Parks

    发明人： Duncan I. Stevenson ,  Ian A. Parks

    IPC分类号： G06T500

    CPC分类号： G06T7/0004 ,  G06T5/005 ,  G06T5/20 ,  G06T2207/10008 ,  G06T2207/30144 ,  G06T2207/30176 ,  H04N1/4097

    摘要： In a document handler associated with an input scanner, such as for a digital copier or facsimile machine, an image-bearing sheet is moved over a relatively narrow window, through which the image is recorded by a photosensitive chip. When a spot of dirt attaches to the window, a streak results in the image data. This streaking problem is addressed by detecting image data consistent with such a streak, and applying a suitable correction algorithm to the image data. The suitable algorithm is chosen based on the thickness of the streak and the nature of the image data.

    摘要翻译： 在与诸如数字复印机或传真机的输入扫描仪相关联的文档处理器中，图像承载片材在相对较窄的窗口上移动，通过该窗口，图像由感光芯片记录。 当污垢附着在窗户上时，条纹会导致图像数据。 通过检测与这样的条纹一致的图像数据，并对图像数据应用适当的校正算法来解决该条纹问题。 基于条纹的厚度和图像数据的性质来选择合适的算法。

    Jam clearance release mechanism for printer guides
    3.
    发明申请
    Jam clearance release mechanism for printer guides 有权

    公开(公告)号：US20080050149A1

    公开(公告)日：2008-02-28

    申请号：US11511188

    申请日：2006-08-28

    申请人： Ian A. Parks ,  Richard G. Hubbard

    发明人： Ian A. Parks ,  Richard G. Hubbard

    IPC分类号： G03G21/00

    CPC分类号： G03G21/1638 ,  G03G2221/1675 ,  Y10T292/11

    摘要： A magnetic latch for removably latching a first member to a second member includes a magnet emitting a magnetic field carried by the first member and a magnetically attractive catch plate carried by the second member. A release mechanism is provided for moving the magnet relative to the catch plate from a first position in which the catch plate is strongly engaged with the magnetic field to a second position in which the catch plate is weakly engaged with the magnetic field. The release mechanism includes a lever, pivotally mounted to one of the first and second members and a biasing member carried by the other of the first and second members, the lever engaging the biasing member during pivoting of the lever. The release mechanism enables the magnetic engagement of the members to be broken with a relatively small applied force.

    Jam clearance release mechanism for printer guides
    4.
    发明授权
    Jam clearance release mechanism for printer guides 有权
    打印机导板卡纸间隙释放机构

    公开(公告)号：US07454159B2

    公开(公告)日：2008-11-18

    申请号：US11511188

    申请日：2006-08-28

    申请人： Ian A. Parks ,  Richard G. Hubbard

    发明人： Ian A. Parks ,  Richard G. Hubbard

    IPC分类号： G03G15/00 ,  E05C19/16

    CPC分类号： G03G21/1638 ,  G03G2221/1675 ,  Y10T292/11

    摘要： A magnetic latch for removably latching a first member to a second member includes a magnet emitting a magnetic field carried by the first member and a magnetically attractive catch plate carried by the second member. A release mechanism is provided for moving the magnet relative to the catch plate from a first position in which the catch plate is strongly engaged with the magnetic field to a second position in which the catch plate is weakly engaged with the magnetic field. The release mechanism includes a lever, pivotally mounted to one of the first and second members and a biasing member carried by the other of the first and second members, the lever engaging the biasing member during pivoting of the lever. The release mechanism enables the magnetic engagement of the members to be broken with a relatively small applied force.

    摘要翻译： 用于将第一构件可拆卸地闩锁到第二构件的磁性闩锁包括发射由第一构件承载的磁场的磁体和由第二构件承载的磁性吸引板。 提供了一种释放机构，用于从捕获板与磁场牢固地接合到第二位置的第一位置相对于捕获板移动磁体到捕获板与磁场弱接合的第二位置。 释放机构包括枢转地安装到第一和第二构件中的一个的杠杆和由第一和第二构件中的另一个承载的偏压构件，杆在枢转杆期间接合偏置构件。 释放机构使得能够以相对小的施加力破坏构件的磁接合。

    Roll nip structure having adaptive pivot position
    6.
    发明授权
    Roll nip structure having adaptive pivot position 有权
    卷辊结构具有自适应的枢轴位置

    公开(公告)号：US08613444B2

    公开(公告)日：2013-12-24

    申请号：US12907133

    申请日：2010-10-19

    申请人： Samuel Hagos, III ,  Benjamin R. Chaplin ,  Christopher F. D. Watts ,  Ian A. Parks

    发明人： Samuel Hagos, III ,  Benjamin R. Chaplin ,  Christopher F. D. Watts ,  Ian A. Parks

    IPC分类号： B65H5/02

    CPC分类号： B65H5/062 ,  B65H2402/31 ,  B65H2404/1421 ,  B65H2404/1431 ,  B65H2601/61

    摘要： A printing apparatus comprises a marking device, a media path positioned to supply sheets of media to the marking device, and a media supply tray positioned to supply the sheets of media to the media path. Further, a pair of rollers forms a nip adjacent the media supply tray. The rollers rotate in opposite directions to cause the sheets of media to move from the media supply tray to the media path. Additionally, a first frame structure supports a first roller of the pair of rollers. The first frame structure can be in a fixed position and holds the first roller in a fixed location. A second frame structure supports a second roller of the pair of rollers. The second frame structure is adjustable in a first direction toward the first roller and has a variable pivot position allowing the second frame structure to move in a second direction perpendicular to the first direction.

    摘要翻译： 打印装置包括标记装置，定位成向打标装置提供纸张的介质路径，以及定位成将介质片材供应到介质路径的介质供应盘。 此外，一对辊形成邻近介质供应托盘的辊隙。 滚筒沿相反方向旋转，使介质片从介质供应托盘移动到介质路径。 此外，第一框架结构支撑该对辊的第一辊。 第一框架结构可处于固定位置并将第一辊保持在固定位置。 第二框架结构支撑该对辊的第二辊。 所述第二框架结构在朝向所述第一辊的第一方向上是可调节的并且具有允许所述第二框架结构在垂直于所述第一方向的第二方向上移动的可变枢转位置。