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公开(公告)号：US5930569A
公开(公告)日：1999-07-27
申请号：US127587
申请日：1998-08-03
申请人： Norman L. Roof, Jr. , Timothy P. Foley , Daniel R. Maurer , Jacqueline M. Christensen , Cho Y. Sze , Raymond L. Mongeon
发明人： Norman L. Roof, Jr. , Timothy P. Foley , Daniel R. Maurer , Jacqueline M. Christensen , Cho Y. Sze , Raymond L. Mongeon
IPC分类号： G03G15/09
CPC分类号： G03G15/09 , G03G2215/0648
摘要： An image development system for developing a latent image on an imaging surface, such as a xerographic photoreceptor, with plural development rollers having internal axially extending developer magnets with relatively offset axial end positions, and wherein at least one development roller has a smooth surface area at that same end, to reduce edge banding image defects from the interaction of the axial ends of the magnets of adjacent development rollers, especially for large size copy sheets being printed, such as B4 size. The image developer unit may have three development rollers with three different lengths of developer magnets to provide three different magnetic end positions staggered on opposite sides of the end position of the large sheet (relative to the imaging surface).
摘要翻译： 一种图像显影系统，用于在诸如静电复印感光体的成像表面上显影潜像，具有多个显影辊，其具有内部轴向延伸的具有相对偏移的轴向端位置的显影剂磁体，并且其中至少一个显影辊具有平滑的表面积 同样的目的，为了减少相邻显影辊的磁体的轴向端部的相互作用的边缘条纹图像缺陷，特别是对于正在印刷的大尺寸复印纸，例如B4尺寸。 图像显影单元可以具有三个具有三个不同长度的显影剂磁体的显影辊，以在大片材（相对于成像表面）的端部位置的相对侧上提供三个不同的磁性端部位置。
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2.发明授权Methods for automated uniformity assessment and modification of image non-uniformities 有权自动均匀性评估和图像不均匀性修改的方法公开(公告)号：US07259857B2
公开(公告)日：2007-08-21
申请号：US10756396
申请日：2004-01-14
CPC分类号： H04N1/00015 , H04N1/00002 , H04N1/00031 , H04N1/00045 , H04N1/00058 , H04N1/4015 , H04N2201/0096
摘要： Methods for automated uniformity assessment and modification of image non-uniformities using an image measurement device capable of determining image reflectance and/or transmitter as a function of position, such as a spectrophotometer, a calorimeter, and/or a densitometer. One or more of these devices scan an image on a substrate, such as a sheet, thereby generating data representing image characteristics, such as, for example, image non-uniformity. The sheet may contain a reference/test pattern including one column, strip or patch intended to have a uniform density. This data generated by the device after the scan of the substrate is analyzed with signal processing algorithms for image characteristics assessment, including image spatial uniformity and compared to reference image characteristics including image spatial uniformity. An image modification profile may be generated to be applied to a marking system to thereby alter subsequent image data and improve image spatial uniformity of the marking system.
摘要翻译： 使用能够确定作为位置的函数的图像反射率和/或发射器的图像测量装置，例如分光光度计，量热计和/或密度计，自动均匀性评估和图像不均匀性修改的方法。 这些设备中的一个或多个扫描诸如片材的衬底上的图像，从而生成表示图像特性的数据，例如图像不均匀性。 片材可以包含参考/测试图案，其包括一个旨在具有均匀密度的柱，条带或贴片。 在扫描基板之后由器件产生的数据用信号处理算法分析，用于图像特征评估，包括图像空间均匀性，并与包括图像空间均匀性的参考图像特性进行比较。 可以生成图像修改简档以应用于标记系统，从而改变后续图像数据并提高标记系统的图像空间均匀性。
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公开(公告)号：US6021304A
公开(公告)日：2000-02-01
申请号：US182620
申请日：1998-10-29
IPC分类号： G03G21/00
CPC分类号： G03G21/0023 , G03G21/0017 , G03G21/0076 , G03G2221/001
摘要： A cleaning apparatus having a spots cleaning blade to remove residual agglomerations of particles from the imaging surface. The spots cleaning blade is made from a material that has a low coefficient of friction, low resilience and higher hardness than a standard spots blade. These properties enable the spots cleaning blade to provide a continuous slidable contact with the imaging surface to remove residual particles therefrom. Additionally, an electrically conductive surface can be added to the front or back surface of the blade to cause toner particles to be repelled from and cloud near the blade where they can be removed by a vacuum device or the like. The conductive surface may be direct negative, direct positive or A-C potential to provide the necessary repelling force.
摘要翻译： 一种清洁设备，其具有斑点清洁刮板以从成像表面去除颗粒的残留聚集。 斑点清洁刮板由具有比标准斑点刀片低的摩擦系数，低回弹性和较高硬度的材料制成。 这些特性使斑点清洁刮板能够与成像表面连续滑动接触以从中除去残留的颗粒。 另外，导电表面可以被添加到叶片的前表面或后表面，使得调色剂颗粒被排斥并且在叶片附近云层，在那里它们可被真空装置等除去。 导电表面可以是直接负极，直接正极或A-C电位以提供必要的排斥力。
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