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    • 123. 发明授权
    • Multicolor tandem reproduction machine having a transfix-like
precondition assembly
    • 具有半透明状前置条件组合的多色串联再现机
    • US6128465A
    • 2000-10-03
    • US411215
    • 1999-10-04
    • Vittorio Castelli
    • Vittorio Castelli
    • G03G21/00G03G15/00G03G15/01G03G15/16G03G15/20G03G15/24
    • G03G15/6558G03G15/1665G03G2215/0059G03G2215/00666G03G2215/0119G03G2215/1685
    • An image reproduction machine is provided, and includes a paper substrate feeding assembly having a substrate path for feeding a portion of paper substrate; a moveable image bearing member having an imaging path; toner image forming devices along the imaging path for forming a toner image on the image bearing member; an image transfer station along the substrate path for transferring the toner image onto a portion of paper substrate fed by the paper substrate feeding assembly; and a toner image fusing assembly having heat and pressure devices for heating and fusing the toner image onto the portion of paper substrate. The reproduction machine importantly includes a blank paper substrate preconditioning apparatus (PSPA) for changing and stabilizing a size of the portion of paper substrate before it is fed to the image transfer station. The PSPA is mounted along the substrate path and upstream of the image transfer station relative to movement of the portion of paper substrate, and includes heat and pressure devices for preheating and pre-stressing the portion of paper substrate, thereby causing it to change size to an extent not alterable by subsequent application of heat and pressure within the toner image fusing assembly, thus resulting in highly registered quality reproduced toner images.
    • 提供一种图像再现机,并且包括具有用于馈送一部分纸基材的基板路径的纸基板供给组件; 具有成像路径的可移动图像承载部件; 沿着用于在图像承载部件上形成调色剂图像的成像路径的调色剂图像形成装置; 沿着基板路径的图像转印站,用于将调色剂图像转印到由纸基材供给组件供给的纸基材的一部分上; 以及调色剂图像定影组件,其具有用于将调色剂图像加热和熔合到纸基材的该部分上的热和压力装置。 再生机重要地包括一个空白纸基片预处理装置(PSPA),用于在送纸到图象转印站之前改变和稳定纸基片的一部分尺寸。 PSPA沿着基板路径和图像转印站的上游相对于纸基底的移动而被安装,并且包括用于对纸基片的一部分进行预热和预应力的加热和加压装置,从而使其改变尺寸到 通过随后在调色剂图像定影组件中施加热和压力而不能改变的程度,从而导致高度注册的质量再现调色剂图像。
    • 124. 发明授权
    • Method to provide optimum optical contrast for registration mark
detection
    • 为对准标记检测提供最佳光学对比度的方法
    • US5631686A
    • 1997-05-20
    • US168300
    • 1993-12-17
    • Vittorio CastelliDavid L. Hecht
    • Vittorio CastelliDavid L. Hecht
    • G03G15/00G03G15/01G03G15/36B41J2/385G03G21/00
    • G03G15/0194G03G2215/0109G03G2215/0161
    • A method of achieving optimum optical contrast for detecting registration marks in a multicolor electrophotographic printing machine. The reflectivity of the image carrying member which is usually an intermediate transfer belt is determined. The reflectivity of each of the toners is then determined. If one of the toners has a contrasting reflectivity, while the remaining toners do not contrast then a uniform field of the contrasting toner is imaged and developed and the registration marks for the other toner colors are then developed on top of the uniform field. A void in the field in the shape of the other toner marks is used as the registration mark for the contrasting toner. If all of the toners have a contrasting reflectivity with the belt, the registration marks are imaged and developed directly on the belt.
    • 一种在多色电子照相印刷机中实现最佳光学对比度以检测对准标记的方法。 确定通常为中间转印带的图像承载部件的反射率。 然后确定每个调色剂的反射率。 如果一个调色剂具有对比度的反射率,而剩余的调色剂不对比,则对比色调剂的均匀场被成像和显影,然后在均匀场的顶部上显影其它调色剂颜色的对准标记。 使用其他调色剂标记形状的场中的空隙作为对比色调色剂的对准标记。 如果所有的调色剂与皮带都具有对比度的反射率,则对准标记直接在皮带上成像和显影。
    • 125. 发明授权
    • Apparatus and method to control and calibrate deliberate speed mismatch
in color IOTs
    • 用于控制和校准颜色IOT中故意速度失配的装置和方法
    • US5508789A
    • 1996-04-16
    • US343816
    • 1994-11-22
    • Vittorio CastelliJoannes N. M. deJongLloyd Williams
    • Vittorio CastelliJoannes N. M. deJongLloyd Williams
    • G03G21/14G03G15/01G03G15/16G03G15/00
    • G03G15/1605G03G15/0194G03G2215/0119G03G2215/0135G03G2215/1661
    • A method and apparatus for controlling speed match between a photoreceptor and an intermediate transfer member to prevent image degradation by creating a deliberate speed mismatch. It has been found that slight variations in speed match between a photoreceptor and transfer member will maintain acceptable image quality, however, should the relative velocity between the members change sign, unacceptable image error results. The method herein comprises slewing the velocity of a photoreceptive member over a range of speeds while monitoring the output control signal current of a drive motor. The resulting control signal current has a large oscillation at the velocity at which the speed of the photoreceptor matches that of the intermediate transfer member. A controller is then used to maintain the motor velocity at a speed slightly less than or slightly greater than the intermediate transfer member speed so as to prevent a change in sign of the relative velocity between the two moving surfaces.
    • 一种用于控制感光体和中间转印部件之间的速度匹配的方法和装置,以通过产生有意的速度失配来防止图像劣化。 已经发现,感光体和转印部件之间的速度匹配的轻微变化将保持可接受的图像质量,然而,如果部件之间的相对速度改变符号,则不可接受的图像误差结果。 这里的方法包括在监视驱动电动机的输出控制信号电流的同时在一定速度范围内回转感光元件的速度。 所得到的控制信号电流在感光体的速度与中间转印部件的速度相匹配的速度下具有大的振荡。 然后使用控制器将电机速度保持在略小于或稍大于中间转印部件速度的速度,以防止两个运动表面之间的相对速度的符号变化。
    • 126. 发明授权
    • Self-aligning roll for belt loop modules
    • 皮带环模块自动调心辊
    • US5387962A
    • 1995-02-07
    • US165622
    • 1993-12-13
    • Vittorio CastelliHarold BrownStephen T. Chai
    • Vittorio CastelliHarold BrownStephen T. Chai
    • B65H23/038G03G15/00G03G5/00
    • G03G15/755B65H23/038B65H2301/531B65H2404/15212
    • An apparatus for guiding a moving web, particularly in an electrophotographic printing machine of the type having an endless photoreceptor belt supported by a plurality of rolls and arranged to move in a predetermined path through a plurality of processing stations disposed therealong the web being of the type which is supported by a plurality of rolls. A roll for supporting the web and in frictional contact therewith is adapted for rotational movement about a first axis. A roll support in the form of a dead shaft allows the roll laterally move to pivot about a second axis in a direction substantially normal to the predetermined path direction. This is accomplished by supporting the dead shaft on a V-groove roller which rides in a track substantially along the arc of rotation normal to the predetermined path direction. Any web tracking normal to the predetermined direction exerts a friction force on the roll causing the roll to pivot about the second axis as a result of the v-groove rollers moving along the tracks in a direction substantially normal to the predetermined direction such that the roll aligns itself so that its axis of rotation is substantially perpendicular to the direction of travel of the belt.
    • 一种用于引导移动幅材的装置,特别是在具有由多个辊支撑的环形感光带的电子照相印刷机中,并且布置成以预定路径移动通过布置在其上的多个处理站 其由多个辊支撑。 用于支撑幅材并与其摩擦接触的卷适于围绕第一轴线的旋转运动。 呈死轴形式的辊支撑件允许辊横向移动以基本上垂直于预定路径方向的方向绕第二轴线枢转。 这是通过在垂直于预定路径方向的旋转圆弧上沿着轨道轨道的V形槽上支撑死轴来实现的。 垂直于预定方向的任何卷筒纸跟踪在辊上施加摩擦力,导致辊绕着第二轴线枢转,这是因为V形槽辊沿着轨道沿基本上垂直于预定方向的方向移动,使得辊 使其自身对准,使得其旋转轴线基本上垂直于带的行进方向。
    • 127. 发明授权
    • Design rules for image forming devices to prevent image distortion and
misregistration
    • 图像形成装置的设计规则,以防止图像失真和重合
    • US5243396A
    • 1993-09-07
    • US900950
    • 1992-06-17
    • Vittorio CastelliHarold M. Anderson
    • Vittorio CastelliHarold M. Anderson
    • B41J2/525F16H7/02G03G15/00G03G15/01
    • G03G15/0194G03G2215/0119G03G2215/0158
    • The present invention relates to design rules and geometric compensations for image forming devices. The inherent eccentricities of the photosensitive belts or drums and the timing belt speed reduction drive trains of image forming device cause misregistration of the developed latent images. To prevent such misregistration, the timing belt of the speed reduction drive train has a peripheral length which is selected from a range of values dependent on a preselected speed reduction ratio between the driven pulley and the driving pulley. Further, each one of the range of values is an integral improper fraction or integral multiple of the circumference of the driven pulley. Moreover, the driving pulley of the last pulley belt set coupled to the photosensitive member and a driven pulley prior to the last pulley belt set rotate n full rotations as the photosensitive member rotates from the image forming location to the image transfer location. In conjunction, every speed reduction ratio of all pulley belt sets prior to the last pulley belt set is an integer value. Thus, the eccentricities will be self-compensated.
    • 本发明涉及图像形成装置的设计规则和几何补偿。 感光带或感光鼓的固有偏心以及图像形成装置的同步带减速传动系引起显影的潜像的不对准。 为了防止这种配准失调,减速传动系的同步带具有从根据从动带轮和驱动带轮之间的预选速度减速比的值的范围中选择的周长。 此外,值的范围中的每一个是从动带轮的圆周的整体不适当分数或整数倍。 此外,当感光构件从图像形成位置旋转到图像转印位置时,耦合到感光构件的最后一个皮带轮组的驱动滑轮和最后一个滑轮带组之间的从动滑轮旋转n次完全旋转。 总之,在最后一个皮带轮组之前,所有皮带轮组的每个减速比都是整数值。 因此,偏心率将被自我补偿。
    • 130. 发明授权
    • Optimization of natural language processing system based on conditional output quality at risk
    • 基于条件输出质量风险的自然语言处理系统优化
    • US08660836B2
    • 2014-02-25
    • US13073255
    • 2011-03-28
    • Vittorio CastelliDavid NahamooBing Zhao
    • Vittorio CastelliDavid NahamooBing Zhao
    • G10L15/00
    • G06F17/2818G06F17/2854
    • Techniques are disclosed for optimizing results output by a natural language processing system. For example, a method comprises optimizing one or more parameters of a natural language processing system so as to improve a measure of quality of an output of the natural language processing system for a first type of data processed by the natural language processing system while maintaining a given measure of quality of an output of the natural language processing system for a second type of data processed by the natural language processing system. For example, the first type of data may have a substantive complexity that is greater than that of the second type of data. Thus, when the natural language processing system is a machine translation system, use of a conditional value at risk metric for the translation quality provides for a high quality output of the machine translation system for data of a high substantive complexity (for sophisticated users) while maintaining an average quality output for average data (for average users).
    • 公开了用于优化由自然语言处理系统输出的结果的技术。 例如,一种方法包括优化自然语言处理系统的一个或多个参数,以便改善对于由自然语言处理系统处理的第一类型的数据的自然语言处理系统的输出的质量的量度,同时保持 给出自然语言处理系统对自然语言处理系统处理的第二类数据的输出质量的度量。 例如,第一类型的数据可能具有大于第二类型的数据的实质性复杂度。 因此,当自然语言处理系统是机器翻译系统时,使用翻译质量的风险度量条件值为机器翻译系统提供高质量的高实质性复杂性(针对复杂用户)的数据输出,同时 维持平均数据(平均用户)的平均质量输出。