In-line image geometrics measurement via local sampling on sheets in a printing system
    1.
    发明授权
    In-line image geometrics measurement via local sampling on sheets in a printing system 有权
    通过在打印系统中的纸张上的局部采样进行在线图像几何测量

    公开(公告)号:US08462380B2

    公开(公告)日:2013-06-11

    申请号:US12252532

    申请日:2008-10-16

    IPC分类号: G06K15/10

    摘要: This invention generally relates to accurately measuring image geometries in-line within a printing system. One or more two-dimensional array sensors may be located adjacent to a sheet of media printed with a predefined array of indicia marks so that the sensor field of view is contained within the plane of sheet transport. As the sheet is transported by the sensor, the sensors continuously record the locations of the indicia marks within its field of view. The spatial frequency of the indicia marks is arranged so that at least two indicia marks are within the field of view of the sensor at any instant for each of the process and cross-process directions. The two-dimensional array sensor can thus measure the absolute spacing between adjacent local indicia marks within the precision of the sensor construction. The cumulative spacing along each direction may then calculated to determine the overall dimensions of the indicia marks array. A measurement procedure is also provided to accurately measure image geometries, even in the presence of significant sheet velocity variations.

    摘要翻译: 本发明一般涉及在打印系统内在线准确地测量图像几何形状。 一个或多个二维阵列传感器可以被定位成邻近印刷有标记标记的预定义阵列的介质片,使得传感器视场包含在片材传送平面内。 当传感器传送纸张时,传感器在其视野范围内连续记录标记标记的位置。 标记标记的空间频率被布置成使得在处理和交叉处理方向中的每一个的任何时刻,至少两个标记在传感器的视场内。 因此,二维阵列传感器可以在传感器结构的精度内测量相邻局部标记之间的绝对间距。 然后可以计算每个方向上的累积间距以确定标记数组的整体尺寸。 还提供测量程序以精确测量图像几何图形,即使存在显着的片材速度变化。

    Drive roll/idler roll nip release mechanism
    2.
    发明授权
    Drive roll/idler roll nip release mechanism 有权
    驱动辊/惰辊辊隙释放机构

    公开(公告)号:US07967289B2

    公开(公告)日:2011-06-28

    申请号:US12547894

    申请日:2009-08-26

    IPC分类号: B65H5/06

    摘要: A drive roll/idler roll nip release mechanism utilizes the motor used for the drive nip, coupled with one-way clutches, to power the nip release as a sheet is handed off to a downstream nip. A drive shaft is coupled to a first one-way clutch in one direction and an idler cam shaft is coupled to a second one-way clutch in the opposite direction. This allows the idler cam shaft to be driven only when the motor is reversed, and the drive shaft to be driven only when the motor is moving forward. The one-way clutch on the drive shaft allows the drive wheels to freewheel when the motor is reversed in order to engage the nip release. Thus, the nip release is activated while the drive nip continues to rotate in the direction of sheet motion.

    摘要翻译: 驱动辊/惰辊辊隙释放机构利用用于驱动压区的电动机,与单向离合器相配合,以便当片材被切换到下游压区时为压区释放提供动力。 驱动轴在一个方向上联接到第一单向离合器,并且惰轮凸轮轴沿相反方向联接到第二单向离合器。 这允许空转凸轮轴仅在电动机反转时才被驱动,并且驱动轴仅在电动机向前移动时被驱动。 驱动轴上的单向离合器允许驱动轮在电动机反向时飞行,以便接合压区释放。 因此,当驱动压区继续沿纸张运动的方向继续旋转时,压区释放被激活。

    Sheet compiling system and method
    3.
    发明授权
    Sheet compiling system and method 有权
    表格编制系统和方法

    公开(公告)号:US07891652B2

    公开(公告)日:2011-02-22

    申请号:US12023635

    申请日:2008-01-31

    IPC分类号: B65H37/04

    摘要: A compiling unit includes a collection tray and a variable-speed compiling system adapted to operate at at least two speeds to thereby receive a sheet of media at a higher speed and register the sheet of media within the collection tray at a lower speed. A control system is adapted to selectively operate the variable-speed compiling system at the at least two speeds. A printing system having a sheet media source, at least one marking engine, such a compiling unit and such a control system is included. A method of compiling sheet media is also included.

    摘要翻译: 编译单元包括收集托盘和适于以至少两个速度操作的可变速度编译系统,从而以更高的速度接收一张介质,并以较低的速度将收集托盘中的介质片记录在一起。 控制系统适于以至少两个速度选择性地操作变速编译系统。 包括具有片材介质源,至少一个标记引擎,这种编译单元和这种控制系统的打印系统。 还包括编制片材介质的方法。

    Distributed belt module for a modular printing system
    4.
    发明授权
    Distributed belt module for a modular printing system 有权
    用于模块化印刷系统的分布式带模块

    公开(公告)号:US08073359B2

    公开(公告)日:2011-12-06

    申请号:US12275385

    申请日:2008-11-21

    申请人: Steven R Moore

    发明人: Steven R Moore

    IPC分类号: G03G15/00 G03G15/16

    摘要: A system for support, operation, installation, and removal of an endless belt in a scalable modular printing system includes an input module, at least one marking module, and an output module. The endless belt is an intermediate transfer belt, a photoconductive belt, or a sheet transport belt used in the marking system. Rollers support an interior surface of the belt, and are supported by their respective module frame structures, thus defining a vacant interior cavity of the belt. A method of belt installation includes drawing all interior rollers out of their frame structures, placing the pre-scrolled belt at one end module of the system, uncoiling the belt along its process direction within the internal cavity of the system, then reinstalling the interior rollers to capture the belt into its operating position.

    摘要翻译: 用于在可伸缩模块化打印系统中支撑,操作,安装和移除环形带的系统包括输入模块,至少一个标记模块和输出模块。 环形带是在标记系统中使用的中间转印带,感光带或片材输送带。 辊子支撑带的内表面,并且由它们各自的模块框架结构支撑,从而限定带的空的内部空腔。 皮带安装的方法包括将所有内部辊从框架结构中拉出,将预先滚动的带放置在系统的一个端部模块处,沿着其在系统的内部空腔内的过程方向展开皮带,然后重新安装内部辊 以将皮带捕获到其操作位置。

    METHOD FOR IMAGE TO PAPER (IOP) REGISTRATION: IMAGE ONE TO IMAGE TWO ERROR COMPENSATION
    5.
    发明申请
    METHOD FOR IMAGE TO PAPER (IOP) REGISTRATION: IMAGE ONE TO IMAGE TWO ERROR COMPENSATION 审中-公开
    图像(IOP)注册方法:图像一到图像两个错误补偿

    公开(公告)号:US20090162119A1

    公开(公告)日:2009-06-25

    申请号:US11960806

    申请日:2007-12-20

    IPC分类号: G03G13/00

    摘要: A method to reduce the misalignment between the image one and image two printed on the same or opposing side of the same sheet. The final error (skew, process and cross-Process) between the actual sheet orientation and the desired orientation during the transfer of an image while printing image one is measured and recorded. When the same sheet comes for printing image two, the error recorded during image one printing is retrieved and used to compensate the desired angular, process and cross-process registration of the sheet for image two printing so that the alignment of image one and image two is improved in comparison to systems that register the sheet without considering image one imaging errors.

    摘要翻译: 一种减少打印在同一张纸的相同或相对侧上的图像一和图像2之间的未对准的方法。 测量和记录在打印图像1期间图像传送期间实际的纸张方向和期望的取向之间的最终误差(偏斜,过程和交叉处理)。 当相同的纸张用于打印图像2时,检索在图像一次打印期间记录的错误,并用于补偿用于图像二次打印的纸张的期望的角度,处理和交叉过程配准,使得图像一和图像二的对准 与不考虑图像一个成像错误而注册纸张的系统相比是改进的。