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21. 发明授权

US5619313A Method and apparatus for liquid image development and transfer 失效
标题翻译：液体图像显影和转印的方法和装置
公开(公告)号：US5619313A
公开(公告)日：1997-04-08
申请号：US431803
申请日：1995-05-01
申请人： Gerald A. Domoto , John F. Knapp , Vittorio Castelli , Joannes N. M. deJong , Lloyd A. Williams
发明人： Gerald A. Domoto , John F. Knapp , Vittorio Castelli , Joannes N. M. deJong , Lloyd A. Williams
IPC分类号： G03G15/01 , G03G15/10 , G03G15/16 , G03G15/24 , G03G15/14
CPC分类号： G03G15/161 , G03G15/1605
摘要： A method and apparatus for simultaneously developing and transferring a liquid toner image. The method includes the steps of moving a photoreceptor including a charge bearing surface having a first electrical potential, applying a uniform layer of charge having a second electrical potential onto the charge bearing surface, and imagewise dissipating charge from selected portions on the charge bearing surface to form a latent image electrostatically, such that the charge-dissipated portions of the charge bearing surface have the first electrical potential of the charge bearing surface. The method also includes the steps of moving an intermediate transfer member biased to a third electrical potential that lies between said first and said second potentials, into a nip forming relationship with the moving imaging member to form a process nip. The method further includes the step of introducing charged liquid toner, having a fourth electrical potential, into the process nip, such that liquid toner sandwiched within the nip simultaneously develops image portions of the latent image onto the intermediate transfer member, and background portions of the latent image onto the charge bearing surface of the photoreceptor.
摘要翻译：一种用于同时显影和转印液体调色剂图像的方法和装置。该方法包括以下步骤：使包含具有第一电位的电荷承载表面的感光体移动，将具有第二电势的均匀的电荷层施加到电荷承载表面上，以及将从电荷承载表面上的选定部分成像的电荷从静电形成潜像，使得电荷承载表面的电荷消耗部分具有电荷承载表面的第一电位。该方法还包括以下步骤：将位于所述第一和所述第二电位之间的偏置到第三电位的中间转印部件移动成与所述运动成像部件形成压区形成关系，以形成工艺辊隙。该方法还包括将具有第四电位的带电液体调色剂引入加工辊隙中的步骤，使得夹在辊隙内的液体调色剂同时将潜像的图像部分显影到中间转印部件上，潜像到感光体的载荷表面上。

22. 发明授权

US08682233B2 Belt tracking using steering angle feed-forward control 有权
标题翻译：带跟踪采用转向角前馈控制
公开(公告)号：US08682233B2
公开(公告)日：2014-03-25
申请号：US13282061
申请日：2011-10-26
申请人： Joannes N. M. deJong , Lloyd A. Williams
发明人： Joannes N. M. deJong , Lloyd A. Williams
IPC分类号： G03G15/00 , G03G15/16
CPC分类号： G03G15/1615 , G03G2215/00156 , G03G2215/0158
摘要： An apparatus including a transfer belt, an edge sensor and a belt steering roll. The transfer belt having a lateral edge and the edge sensor detecting lateral positions of the lateral edge as it passes the edge sensor. The belt steering roll controlling lateral movement of the transfer belt, which is rotatably mounted maintaining rolling engagement with the transfer belt. An axis of rotation of the belt steering roll selectively tiltable defining a steering angle with respect to an axis reference orientation. Changes in the steering angle inducing a lateral shift profile to the lateral edge. The lateral shift profile defined by changes to the lateral positions of the lateral edge during a period. The steering angle being changed based on a differential between a currently detected lateral position of a segment of the lateral edge and a predetermined lateral position derived from the lateral shift profile.
摘要翻译：一种包括转印带，边缘传感器和皮带转向辊的装置。所述转印带具有侧边缘，并且所述边缘传感器在所述侧边缘通过所述边缘传感器时检测所述侧边缘的横向位置。皮带转向辊控制转印带的横向移动，转印带可旋转地安装，保持与转印带的滚动接合。皮带转向辊的旋转轴线可选择性地倾斜，从而相对于轴线参考方向限定转向角。转向角的变化导致横向偏移轮廓到侧边缘。横向偏移轮廓由一段时间内横向边缘的侧向位置的变化而定义。基于侧向边缘的段的当前检测到的横向位置与从横向偏移轮廓导出的预定横向位置之间的差异来改变转向角。

23. 发明授权

US08474818B2 Nip release system 有权
标题翻译： Nip释放系统
公开(公告)号：US08474818B2
公开(公告)日：2013-07-02
申请号：US13084272
申请日：2011-04-11
申请人： Joannes N. M. deJong , Lloyd A. Williams
发明人： Joannes N. M. deJong , Lloyd A. Williams
IPC分类号： B65H5/02
CPC分类号： B65H9/002 , B65H5/062 , B65H2404/133 , B65H2404/143 , B65H2404/1442
摘要： Methods and system for reducing sheet skew in a sheet transport system are disclosed. A sheet transport system may include an idler wheel, a drive wheel a drive motor and an actuator. The idler wheel may have a substantially rigid outer layer. The drive wheel may have a compliant outer layer and may correspond to the idler wheel. The drive motor may be operably connected to the drive wheel and may be configured to cause the drive wheel to rotate around a shaft. The actuator may be operably connected to the drive wheel and configured to cause the drive wheel to move between a closed position and an open position. The drive wheel is configured to contact a sheet in the closed position and to not contact a sheet in the open position.
摘要翻译：公开了一种用于减少片材输送系统中的片材偏斜的方法和系统。片材输送系统可以包括惰轮，驱动轮，驱动马达和致动器。惰轮可以具有基本刚性的外层。驱动轮可以具有柔顺的外层并且可以对应于惰轮。驱动马达可以可操作地连接到驱动轮，并且可以构造成使得驱动轮围绕轴旋转。致动器可以可操作地连接到驱动轮并且构造成使得驱动轮在关闭位置和打开位置之间移动。驱动轮构造成在关闭位置接触片材并且不接触处于打开位置的片材。

24. 发明授权

US08256767B2 Sheet registration using edge sensors 有权
标题翻译：使用边缘传感器进行纸张配准
公开(公告)号：US08256767B2
公开(公告)日：2012-09-04
申请号：US12641860
申请日：2009-12-18
申请人： Lloyd A. Williams , Joannes N. M. deJong
发明人： Lloyd A. Williams , Joannes N. M. deJong
IPC分类号： B65H7/02
CPC分类号： B65H9/002 , B65H2404/1424 , B65H2511/20 , B65H2511/242 , B65H2511/514 , B65H2701/1311 , B65H2801/06 , B65H2220/03 , B65H2220/01
摘要： Accurate sheet registration is achieved by measuring the arrival of a leading edge and/or a trailing edge of the sheet using a first sensor. Also, measuring a first position of the sheet using a second sensor on a lateral edge of the sheet. Then performing a first adjustment moving the sheet laterally using the first position measurement. The first adjustment actuated prior to the sheet reaching a third sensor for measuring a second position of the sheet. The third sensor disposed downstream in the process direction of the second sensor and a sheet feeding nip. Then measuring a second position of the sheet using the third sensor on the lateral edge and performing a second adjustment of the sheet with regard to at least one of sheet skew, sheet velocity and sheet lateral position using at least one of the arrival, first position and second position measurements.
摘要翻译：使用第一传感器测量片材的前缘和/或后缘的到达来实现精确的片材配准。此外，使用第二传感器在片材的侧边缘上测量片材的第一位置。然后使用第一位置测量执行使片材横向移动的第一调整。在纸张到达用于测量纸张的第二位置的第三传感器之前的第一调整被致动。第三传感器设置在第二传感器的处理方向上的下游和送纸辊隙。然后使用侧边缘上的第三传感器测量片材的第二位置，并且使用至少一个到达第一位置，关于片材歪斜，片材速度和片材横向位置中的至少一个来执行片材的第二调整和第二位置测量。

25. 发明授权

US08047537B2 Extended registration control of a sheet in a media handling assembly 有权
标题翻译：在介质处理组件中扩展纸张的对准控制
公开(公告)号：US08047537B2
公开(公告)日：2011-11-01
申请号：US12506517
申请日：2009-07-21
申请人： Joannes N. M. deJong , Lloyd A. Williams , Marina L. Tharayil
发明人： Joannes N. M. deJong , Lloyd A. Williams , Marina L. Tharayil
IPC分类号： B65H7/02
CPC分类号： B65H9/002 , B65H7/06 , B65H9/101 , B65H2511/20 , B65H2511/216 , B65H2511/242 , B65H2511/51 , G03G15/6564 , G03G15/6567 , G03G2215/00405 , G03G2215/00565 , B65H2220/01 , B65H2220/03
摘要： An apparatus for registering a sheet. The apparatus including a sheet registration nip assembly for changing a position and/or timing of the sheet. The apparatus also including a controller communicating a first signal to the sheet registration nip assembly to change a first sheet characteristic to a target characteristic. The first signal generated to impart the target characteristic to the sheet by the time the sheet reaches a preliminary datum. The preliminary datum disposed along the transport path between the sheet registration nip assembly and a delivery datum that is disposed downstream of the sheet registration nip assembly. The controller communicating a second signal to the sheet registration nip assembly to change a second sheet characteristic to the target characteristic. The second signal communicated when at least a portion of the sheet is disposed along the transport path between the preliminary datum and the delivery datum.
摘要翻译：一种用于记录纸张的装置。该装置包括用于改变片材的位置和/或定时的片材定位夹持组件。该装置还包括控制器，其将第一信号传送到纸张对齐辊隙组件，以将第一纸张特性改变为目标特性。生成的第一信号，以便在片材到达初步数据时将目标特性赋予片材。沿着输送路径布置在纸张对齐辊隙组件和布置在纸张对齐辊隙组件下游的输送基准之间的预备基准。控制器将第二信号传送到纸张对齐辊隙组件，以将第二纸张特性改变为目标特性。当纸张的至少一部分沿着预备数据和传送数据之间的传送路径设置时，第二信号通信。

26. 发明授权

US08020859B2 Edge sensor gain calibration for printmaking devices 有权
标题翻译：边缘传感器增益校准用于版画设备
公开(公告)号：US08020859B2
公开(公告)日：2011-09-20
申请号：US12547762
申请日：2009-08-26
申请人： Joannes N. M. deJong , Lloyd A. Williams
发明人： Joannes N. M. deJong , Lloyd A. Williams
IPC分类号： B65H7/02
CPC分类号： B65H9/002 , B65H9/106 , B65H2404/1424 , B65H2553/412 , B65H2557/20 , B65H2557/2423 , B65H2557/61
摘要： According to aspects illustrated herein, there is provided a method, a system, and a printmaking device for calibrating sensors. The method begins by transporting a media sheet along a media path, the sheet having a lead edge, a trail edge and a measurement edge. Next, the method halts the forward motion of the sheet after the lead edge of the sheet passes a fixed reference. After that, the method moves the sheet laterally relative to the media path across the at least one edge sensor using a sheet actuator. Then, the method records an actual position of the sheet actuator and an output of at least one edge sensor. Finally, the method calculates a calibration factor based on the actual position of the sheet actuator and the output of the at least one edge sensor.
摘要翻译：根据本文所示的方面，提供了一种用于校准传感器的方法，系统和版权制作装置。该方法开始于沿着介质路径传送介质片，片材具有前缘，轨迹边缘和测量边缘。接下来，该方法在片材的引导边缘通过固定的基准之后停止片材的向前运动。之后，该方法使用片材致动器使片材横向移动穿过至少一个边缘传感器的介质路径。然后，该方法记录片材致动器的实际位置和至少一个边缘传感器的输出。最后，该方法基于片材致动器的实际位置和至少一个边缘传感器的输出来计算校准因子。

27. 发明授权

US07530256B2 Calibration of sheet velocity measurement from encoded idler rolls 失效
标题翻译：从编码的惰辊校准纸张速度测量
公开(公告)号：US07530256B2
公开(公告)日：2009-05-12
申请号：US11737439
申请日：2007-04-19
申请人： Joannes N. M. deJong , Lloyd A. Williams
发明人： Joannes N. M. deJong , Lloyd A. Williams
IPC分类号： G01P21/00
CPC分类号： B65H9/002 , B65H2511/514 , B65H2513/10 , B65H2553/51 , B65H2557/23 , B65H2701/1311 , G03G15/6564 , G03G15/6567 , H04N1/00002 , H04N1/00018 , H04N1/00087 , H04N1/00705 , H04N1/00745 , H04N1/12 , H04N2201/0082 , H04N2201/0471 , H04N2201/04713 , H04N2201/04724 , H04N2201/04732 , H04N2201/04734 , H04N2201/04737 , B65H2220/01 , B65H2220/03
摘要： A system and method are provided to calibrate a sheet velocity measurement derived from a drive nip system incorporating idler encoders. Testing has found that the velocity from an idler encoder system is subject to systematic errors, for example, errors that occur when the system is running media of different thicknesses. The system uses one or more nips with encoders mounted on the idlers and a number of point sensors that are spaced apart in the process direction. The point sensors are used to measure the transmit time of the sheet (lead edge or trail edge) between two sensor positions. The transit time is used to calculate the average sheet velocity. The average sheet velocity is compared with the velocity derived from the idler-encoders to derive a correction factor. The velocity sensor are used to calibrate the idler-encoder velocity sensors, providing a worthwhile improvement to idler-encoder technology for media handling (e.g., feeding, transport, and finishing) in direct marking systems.
摘要翻译：提供了一种系统和方法来校准从包含惰轮编码器的驱动压区系统导出的纸张速度测量。测试发现，空载编码器系统的速度受到系统误差的影响，例如系统运行不同厚度的介质时发生的错误。该系统使用一个或多个带有安装在惰轮上的编码器和沿过程方向间隔开的多个点传感器。点传感器用于测量两个传感器位置之间的纸张（前缘或尾迹）的传输时间。通行时间用于计算平均纸张速度。将平均片材速度与从空载编码器得到的速度进行比较，得出校正因子。速度传感器用于校准惰轮编码器速度传感器，为直接标记系统中的介质处理（例如进给，运输和精加工）的惰轮编码器技术提供了有意义的改进。

28. 发明授权

US5697608A Agile lateral and shew sheet registration apparatus and method 失效
标题翻译：敏捷横向和纸板配准设备及方法
公开(公告)号：US5697608A
公开(公告)日：1997-12-16
申请号：US669727
申请日：1996-06-26
申请人： Vittorio R. Castelli , Joannes N. M. deJong , Lloyd A. Williams , Barry M. Wolf
发明人： Vittorio R. Castelli , Joannes N. M. deJong , Lloyd A. Williams , Barry M. Wolf
IPC分类号： B65H9/16 , B65H7/02
CPC分类号： B65H9/002 , B65H2511/242
摘要： An apparatus and method for registering and deskewing a sheet along a paper path. A pair of independently driven selectively actuable nips are used to drive a sheet transverse to a paper path direction until the edge of a sheet is registered laterally and in skew. The transverse nips are then deactivated and a drive nip moves the sheet in a process direction along the paper path. A first transport sensor senses the lead edge of a sheet, a second sensor is used to also detect the lead edge of a sheet within a certain distance from the detection by the first sensor. The transport drive nip can then be adjusted based on the transport time between the first transport sensor and the second transport sensor so that the sheet arrives at a registration sensor at the prescribed time. This apparatus and method allows the use of simple point type sensors as opposed to more complex and expensive sensor arrays.
摘要翻译：一种用于沿着纸路径对片材进行配准和歪斜校正的设备和方法。一对独立驱动的可选择性致动的夹头用于驱动横向于纸张路径方向的片材，直到片材的边缘横向和歪斜地登记。横向压头然后被去激活，并且驱动压区沿着纸通道沿着处理方向移动纸张。第一传送传感器感测纸张的前缘，第二传感器用于还检测与第一传感器的检测距离一定距离内的纸张的前缘。然后可以基于第一传送传感器和第二传送传感器之间的传送时间来调整传送驱动夹持器，使得片材在规定时间到达对准传感器。该装置和方法允许使用简单的点型传感器，而不是更复杂和昂贵的传感器阵列。

29. 发明授权

US08376358B2 Extended registration control of a sheet in a media handling assembly 有权
标题翻译：在介质处理组件中扩展纸张的对准控制
公开(公告)号：US08376358B2
公开(公告)日：2013-02-19
申请号：US13244627
申请日：2011-09-25
申请人： Joannes N. M. deJong , Lloyd A. Williams , Marina L. Tharayil
发明人： Joannes N. M. deJong , Lloyd A. Williams , Marina L. Tharayil
IPC分类号： B65H7/02
CPC分类号： B65H9/002 , B65H7/06 , B65H9/101 , B65H2511/20 , B65H2511/216 , B65H2511/242 , B65H2511/51 , G03G15/6564 , G03G15/6567 , G03G2215/00405 , G03G2215/00565 , B65H2220/01 , B65H2220/03
摘要： An apparatus including a sheet registration nip assembly for changing characteristics of the sheet with respect to the transport path. The characteristics of the sheet including a skew position, process direction position or a lateral position of the sheet. The registration nip assembly changing a first sheet characteristic to a first target characteristic by the time the sheet reaches a preliminary registration datum. A delivery registration datum disposed downstream of the registration nip assembly. The registration nip assembly changing a second sheet characteristic to a second target characteristic when at least a portion of the sheet is disposed along the transport path between the preliminary registration datum and the delivery registration datum. The apparatus including an auxiliary nip assembly disposed between the delivery registration datum and the registration nip assembly, wherein the preliminary registration datum is disposed between the delivery registration datum and the auxiliary nip assembly.
摘要翻译：一种包括用于改变纸张相对于输送路径的特性的纸张对齐夹持组件的装置。片材的特征包括片材的偏斜位置，处理方向位置或横向位置。登记辊隙组件在片材达到初步登记基准时将第一片材特性改变为第一目标特性。设置在配准辊隙组件下游的输送登记基准。当片材的至少一部分沿预先登记基准和递送登记基准之间的传送路径设置时，登记夹具组件将第二片材特性改变为第二目标特性。所述设备包括设置在输出登记基准和配准辊隙组合之间的辅助辊隙组件，其中预备对准基准设置在输送登记基准和辅助压区组合之间。

30. 发明申请

US20110156345A1 CLOSED LOOP LATERAL AND SKEW CONTROL 有权
标题翻译：封闭环路和脚踏控制
公开(公告)号：US20110156345A1
公开(公告)日：2011-06-30
申请号：US12647765
申请日：2009-12-28
申请人： Joannes N. M. deJong , Lloyd A. Williams
发明人： Joannes N. M. deJong , Lloyd A. Williams
IPC分类号： B65H9/00
CPC分类号： B65H9/002 , B65H2511/20 , B65H2513/104 , B65H2557/264 , B65H2801/06 , B65H2220/03 , B65H2220/02 , B65H2220/11
摘要： According to aspects illustrated herein, a method, a system, and a printmaking device for performing closed loop lateral and skew control of a sheet is provided. The printmaking device includes a feed path, printing module, and sheet registration system. First, the feed path moves the sheet in a process direction past the lateral sensor. Next, the sheet is registered by measuring a lateral position of one side edge of the sheet at a fixed reference using the lateral sensor and determining a lateral position error of the sheet using the lateral position measurement. After that, a sheet angular velocity is calculated based on the lateral position error using the registration controller. Then, the lateral position error is corrected using the at least one pair of registration nips to adjust the sheet by applying the sheet angular velocity to the sheet.
摘要翻译：根据本文所示的方面，提供了一种用于执行片材的闭环横向和偏斜控制的方法，系统和版权制造装置。该印版装置包括一馈送路径，打印模块和纸张登记系统。首先，进给路径使片材沿着处理方向移动通过横向传感器。接下来，通过使用横向传感器以固定的基准测量片材的一个侧边缘的横向位置来记录片材，并使用横向位置测量来确定片材的横向位置误差。之后，使用登记控制器基于横向位置误差来计算纸张角速度。然后，使用至少一对对准夹头校正横向位置误差，以通过将片材角速度施加到片材来调节片材。

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