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    • 1. 发明授权
    • Transfer assist blade dwell correction
    • 转移辅助刀片驻留校正
    • US07257359B2
    • 2007-08-14
    • US11209556
    • 2005-08-23
    • Michael N. SouresDavid Kenneth AhlRobert Arnold GrossMichael W. Schab
    • Michael N. SouresDavid Kenneth AhlRobert Arnold GrossMichael W. Schab
    • G03G15/16
    • G03G15/1685G03G2215/1628
    • An apparatus for assisting in the transfer of an image from an image bearing member onto a copy substrate, comprises an image bearing member carrying an image to be transferred, a feed mechanism for feeding a copy substrate to the image bearing member, and a transfer assist mechanism movable to an activated position bearing on the substrate to maintain the substrate in contact with the image bearing member to assist in transferring the image thereto, and to a de-activated position. A sensor generates a signal in response to passage of the leading edge and the trailing edge of the substrate to ascertain an actual length of the substrate as it moves to the image bearing member. A controller is operable to direct the transfer assist mechanism to move to the activated position and then to direct the transfer assist mechanism to move to the de-activated position after a de-activation dwell time. The de-activation dwell time is at least initially a nominal dwell time based on an expected length of the substrate from its leading edge to its trailing edge. The controller is operable to change the de-activation dwell time from the nominal dwell time in response to the determination of the actual length of the substrate.
    • 一种用于辅助将图像从图像承载部件转印到复制基板上的装置,包括承载待传送图像的图像承载部件,用于将复制基板馈送到图像承载部件的进给机构,以及传送辅助 机构可移动到承载在基板上的启动位置,以保持基板与图像承载部件接触,以帮助将图像传送到其上并且移动到非启动位置。 传感器响应于衬底的前缘和后缘的通过而产生信号,以确定衬底移动到图像承载部件时的实际长度。 控制器可操作以指示传送辅助机构移动到激活位置,然后在去激活停留时间之后引导传送辅助机构移动到去激​​活位置。 基于从其前缘到其后缘的衬底的预期长度,去激活停留时间至少开始为标称停留时间。 控制器可操作以响应于确定衬底的实际长度而将去激活停留时间从标称停留时间改变。
    • 3. 发明授权
    • System and method for adjusting transfer current in an image transfer machine
    • 用于调整图像转印机中转印电流的系统和方法
    • US07391982B2
    • 2008-06-24
    • US11280005
    • 2005-11-16
    • David Kenneth AhlMichael N. SouresRobert Arnold Gross
    • David Kenneth AhlMichael N. SouresRobert Arnold Gross
    • G03G15/00G03G15/16
    • G03G15/1635G03G15/167G03G21/203G03G2215/00742
    • In a printing machine having at least one transfer device driven in response to an electrical signal and operable to transfer a medium onto a sheet, a method of controlling the magnitude of the electrical signal driving the transfer device comprises assigning a magnitude of the electrical signal for driving the transfer device to each of at least two transfer stress conditions, evaluating at least one operating parameter of the printing machine relative to a corresponding pre-determined threshold value, selecting one of the at least two transfer stress conditions based on the evaluation of the at least one operating parameter, and applying the magnitude of the electrical signal corresponding to the selected stress condition to the electrically-driven transfer device. The operating parameters may include environmental parameters, such as altitude and humidity, sheet properties, such as paper weight, and machine parameters, such as transfer device life.
    • 在具有响应于电信号而被驱动并可操作以将介质传送到片材上的至少一个传送装置的打印机中,控制驱动传送装置的电信号幅度的方法包括:将电信号的幅度分配给 将所述传送装置驱动至至少两个传送应力条件中的每一个,相对于相应的预定阈值评估所述打印机的至少一个操作参数,基于所述至少两个传送应力条件的评估来选择所述至少两个传送应力条件之一 至少一个操作参数,并将对应于所选择的应力状况的电信号的大小施加到电驱动传送装置。 操作参数可以包括诸如高度和湿度的环境参数,诸如纸张重量的纸张属性,以及诸如转印装置寿命的机器参数。