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    Electrostatic toner conditioning and transport system
    3.
    发明授权
    Electrostatic toner conditioning and transport system 失效
    静电调色剂调理和运输系统

    公开(公告)号：US5541716A

    公开(公告)日：1996-07-30

    申请号：US494687

    申请日：1995-06-26

    申请人： Fred W. Schmidlin

    发明人： Fred W. Schmidlin

    IPC分类号： G03G15/08 ,  G03G15/34

    CPC分类号： G03G15/0822 ,  G03G15/346

    摘要： A transport system for charging and delivering right-sign electrostatic toner to an image receiving member includes a toner conveyor having a loading/filtering segment and a delivery, segment. Each segment has a number of parallel electrodes connected to a DC-biased multiphase electric power to establish a traveling electrostatic wave to move toner along the segment. The loading/filtering segment gathers toner from a supply and feeds unipolar toner to the delivery segment. The delivery segment delivers right sign toner to the image receiving member. The traveling wave in the loading/filtering segment moves toner in either a synchronous surfing mode or an asynchronous hunching mode to the delivery segment. The traveling wave in the delivery segment moves toner in an asynchronous hunching mode to the image receiving member. The traveling wave and the speed of toner movement in the loading/filtering segment and the delivery segment are subject to control by means of the bias, amplitude, and frequency of the electric power on the respective segments. First and second toner extractors adjacent to the conveyor are electrically biased to extract therefrom, respectively, wrong-sign toner before it reaches the image receiving member, and unused right-sign toner after it passes the image receiving member.

    摘要翻译： 用于向图像接收构件充电和传送右边的静电调色剂的传送系统包括具有装载/过滤段和传送段的调色剂传送器。 每个段具有连接到DC偏置多相电力的多个平行电极，以建立行进静电波沿着该段移动调色剂。 装载/过滤段从电源中收集碳粉，并将单极调色剂供给到传送段。 传送片段向图像接收部件传送正确的符号调色剂。 加载/过滤段中的行波将调色剂以同步冲浪模式或异步冲压模式移动到输送段。 传送段中的行波将异步调谐模式中的调色剂移动到图像接收构件。 载波/滤波段和输送段中的行波和调色剂运动的速度通过各个段上的电力的偏置，振幅和频率进行控制。 邻近输送机的第一和第二调色剂提取器分别被电偏置以在其到达图像接收构件之前分别从其中提取错字符调色剂，以及未经授权的右侧调色剂通过图像接收构件之后。

    Printing apparatus with toner projection means
    4.
    发明授权
    Printing apparatus with toner projection means 失效
    具有调色剂投影装置的打印设备

    公开(公告)号：US5453768A

    公开(公告)日：1995-09-26

    申请号：US143658

    申请日：1993-11-01

    申请人： Fred W. Schmidlin

    发明人： Fred W. Schmidlin

    IPC分类号： G03G15/34 ,  G01D15/16 ,  G03G15/06

    CPC分类号： G03G15/346 ,  G03G2217/0025

    摘要： A direct electrostatic printing process which is insensitive to the polarity of the toner material is disclosed. The donor member of the printing apparatus includes alternate narrow and wide electrodes. The narrow electrodes are electrically pulsed to eject toner of one polarity in proximity with an array of electrically controlled apertures in a printhead, and unused toner are returned to the donor surface with low momentum to avoid dislodgment of other toner from the donor on impact. Toner ejection is accomplished with a three segment voltage pulse, including an impulse segment to detach toner of one polarity from the donor and accelerate the toner particles toward a printhead, a zero voltage segment during which the ejected toner drifts in the presence of electric fields produced by voltages applied to the printhead and toner receiving member, and a final low voltage segment of the same polarity as the first impulse segment to decelerate toner returning to the donor to a low landing speed and thereby avoid dislodgement of other toner from the donor. The donor structure and ejector pulse renders aperture type direct printing stable for long periods of time without frequent cleaning of the printhead.

    摘要翻译： 公开了对调色剂材料的极性不敏感的直接静电印刷工艺。 印刷装置的施主构件包括交替的狭窄和宽电极。 窄电极是电脉冲的，以将打印头中的电控孔的阵列附近的一个极性的调色剂喷射出来，而未使用的调色剂以低动量返回到供体表面，以避免其它调色剂在受影响时从供体上脱落。 调色剂喷射通过三段电压脉冲来实现，该脉冲段包括一个脉冲段，以将一个极性的调色剂从供体中分离出来，并将调色剂颗粒加速到打印头，零电压段，在此期间喷射的调色剂在产生电场的情况下漂移 通过施加到打印头和调色剂接收构件的电压，以及与第一脉冲段相同极性的最终低电压段，以使得调色剂返回给供体减速到低着陆速度，从而避免其它调色剂从供体移出。 供体结构和喷射器脉冲使孔径直接打印长时间稳定，而不会频繁地清洁打印头。

    Cyclonic toner charging donor
    5.
    发明授权
    Cyclonic toner charging donor 失效
    循环电荷充电器

    公开(公告)号：US5097277A

    公开(公告)日：1992-03-17

    申请号：US548459

    申请日：1990-07-02

    申请人： Fred W. Schmidlin ,  Robert G. Martin

    发明人： Fred W. Schmidlin ,  Robert G. Martin

    IPC分类号： G03G15/08 ,  G03G15/34

    CPC分类号： G03G15/0822 ,  G03G15/346 ,  G03G2217/0025

    摘要： Direct Electrostatic Printer including a combination toner charging and delivery system. The combination toner charging and delivery system serves to convey well charged toner to an area adjacent an apertured printhead through which toner particles are propelled in image configuration. The system is provided with an annular channel in a generally cylindrical member through which toner laden air moves under pressure. During movement uncharged toner particles collide with a triboactive surface of the channel due to centrifugal force and become charged. The other surface delineating the channel carries a bias electrode thereon. The electrostatic field created by the bias prevents toner from colliding with the triboactive surface once it has reached a predetermined charge/mass ratio.

    Xerojet dry powder printing process
    6.
    发明授权
    Xerojet dry powder printing process 失效
    Xerojet干粉印刷工艺

    公开(公告)号：US06416171B1

    公开(公告)日：2002-07-09

    申请号：US09188458

    申请日：1998-11-09

    申请人： Fred W. Schmidlin

    发明人： Fred W. Schmidlin

    IPC分类号： B41J206

    CPC分类号： G03G15/348 ,  G03G15/344 ,  G03G2215/0119 ,  G03G2217/0016 ,  G03G2217/0025

    摘要： An apparatus and method for the delivery of electrostatically charged toner particles to an image receiving member using a traveling electrostatic wave toner conveyor. The traveling electrostatic wave toner conveyor is overlaid with barrier electrodes that divide the conveyor into parallel columns, forming isolated potential wells to receive pixel packets of toner. An ejector electrode in registry with each conveyor column modulates the quantity of toner in pixel packets that travel along the parallel conveyor columns. The quantity in the packets is responsive to the modulated voltage applied to the ejector electrode. Focusing electrodes transfer pixel packets from the traveling wave conveyor as toner jets focused onto the image receiving member. A repulsive dc bias is applied to the barrier electrodes to confine toner within the conveyor columns. Another embodiment includes an image transfer conveyor similarly overlaid with barrier electrodes. A toner supply conveyor (or four such conveyors for CMYK toners) supplies pixel packets to the transfer conveyor. An ejector electrode on the supply conveyor in registry with each conveyor column ejects toner from the supply conveyor to the transfer conveyor in response to modulated voltage. A corresponding attraction electrode on the transfer conveyor, in registry with each ejector electrode on the supply conveyor and subjected to voltage of opposite polarity, attracts toner from the supply conveyor to the transfer conveyor. CMYK toners are of equivalent particle size small enough to reduce the granularity of continuous tone images below the threshold of visibility. Multiplexing is accomplished by four ejector electrodes, positioned one ahead of another by one-fourth the transfer conveyor wavelength and energized together through a common bus electrode.

    摘要翻译： 一种用于使用行进静电波调色剂输送机将带静电的调色剂颗粒输送到图像接收部件的设备和方法。 移动的静电波调色剂输送机覆盖有阻挡电极，其将输送机分成平行的列，形成隔离的势阱以接收墨粉的像素包。 与每个输送机列对准的喷射器电极调节沿着平行输送机柱行进的像素分组中的调色剂量。 分组中的量响应于施加到喷射器电极的调制电压。 聚焦电极将来自行波传送器的像素包转移到聚焦到图像接收部件上的调色剂喷射。 将斥力的直流偏压施加到阻挡电极以将调色剂限制在输送塔内。另一个实施例包括类似地覆盖有阻挡电极的图像传送输送器。 墨粉供应输送机（或四个用于CMYK调色剂的输送机）将像素包提供给传送带。 在每个输送机支架上的供给输送机上的喷射器电极响应于调制的电压将调色剂从供给输送机排出到转印输送机。 在输送输送机上的相应的吸引电极，与供给输送机上的每个喷射器电极对准并且经受相反极性的电压，将调色剂从供应输送机吸引到传送输送机.MYK调色剂的粒度足够小以减少 连续色调图像的粒度低于可见度阈值。复用是通过四个喷射器电极实现的，四个喷射器电极位于另一个前面，另一个位于传送输送器波长的四分之一处，并通过公共总线电极一起通电。

    DEP apparatus for selectively creating monochrome highlight color or process color images
    7.
    发明授权
    DEP apparatus for selectively creating monochrome highlight color or process color images 失效
    DEP设备，用于选择性地创建单色高亮颜色或处理彩色图像

    公开(公告)号：US5132708A

    公开(公告)日：1992-07-21

    申请号：US548330

    申请日：1990-07-02

    申请人： Fred W. Schmidlin ,  Raymond W. Stover

    发明人： Fred W. Schmidlin ,  Raymond W. Stover

    IPC分类号： B41J2/385 ,  G03G15/01 ,  G03G15/05 ,  G03G15/34 ,  G03G17/00

    CPC分类号： G03G15/346 ,  G03G15/0142 ,  G03G15/0194

    摘要： A Direct Electrostatic Printer including a vacuum drum for transporting copy sheets past a plurality of DEP printhead structures for selectively printing various types of images. For example, black only images, highlight color images or process color images may be printed. To this end there are provided a plurality of printheads each utilizing a different color toner. Each printhead structure may be selectively actuated depending upon whether its color is to be used in forming the final image. Thus, where a process color image is to be formed, all of the printheads may be actuated and where black images are to be created only the black printhead is actuated.

    摘要翻译： 一种直接静电打印机，包括用于将复印纸传送通过多个DEP打印头结构的真空鼓，用于选择性地打印各种类型的图像。 例如，可以打印仅黑色图像，高亮显示彩色图像或处理彩色图像。 为此，提供了各自使用不同颜色的调色剂的多个打印头。 可以根据其颜色是否用于形成最终图像来选择性地致动每个打印头结构。 因此，在要形成处理彩色图像的情况下，可以启动所有打印头，并且仅在黑色打印头被致动的地方创建黑色图像。

    Direct electrostatic printer (DEP) and printhead structure therefor
    8.
    发明授权
    Direct electrostatic printer (DEP) and printhead structure therefor 失效
    直接静电打印机（DEP）及其打印头结构

    公开(公告)号：US4860036A

    公开(公告)日：1989-08-22

    申请号：US226178

    申请日：1988-07-29

    申请人： Fred W. Schmidlin

    发明人： Fred W. Schmidlin

    IPC分类号： B41J2/415 ,  G03G15/05 ,  G03G15/34

    CPC分类号： G03G15/346 ,  B41J2/4155 ,  G03G2217/0025

    摘要： Near letter quality (NLQ) characters are formed using direct electrostatic printing (DEP) by providing a printhead structure containing at least three equally spaced rows of equally spaced and staggered apertures. In the preferred embodiment, the printhead structure includes at least four rows of apertures. The number of rows is equal to the distance between aperture centers divided by the diameter of a spot of toner deposited by each of the apertures.

    Direct electrostatic printing apparatus and toner/developer delivery system therefor
    9.
    发明授权
    Direct electrostatic printing apparatus and toner/developer delivery system therefor 失效
    直接静电印刷设备和调色剂/显影剂传送系统

    公开(公告)号：US4743926A

    公开(公告)日：1988-05-10

    申请号：US946937

    申请日：1986-12-29

    申请人： Fred W. Schmidlin ,  Nero R. Lindblad

    发明人： Fred W. Schmidlin ,  Nero R. Lindblad

    IPC分类号： B41J2/385 ,  G03G15/08 ,  G03G15/34 ,  G01D15/10

    CPC分类号： G03G15/0822 ,  G03G15/0887 ,  G03G15/0891 ,  G03G15/346

    摘要： Electrostatic printing apparatus including structure for delivering developer or toner particles to a printhead forming an integral part of the printing device. Alternatively, the toner particles can be delivered to a charge retentive surface containing latent images. The developer or toner delivery system is adapted to deliver toner containing a minimum quantity of wrong sign and size toner. To this end, the developer delivery system includes a pair of charged toner conveyors which are supported in face-to-face relation. A bias voltage is applied across the two conveyors to cause toner of one charge polarity to be attracted to one of the conveyors while toner of the opposite is attracted to the other conveyor.In another embodiment, a single charged toner conveyor is supplied by a pair of three-phase generators which are biased by a dc source which causes toner of one polarity to travel in one direction on the electrode array while toner of the opposite polarity travels generally in the opposite direction.In additional embodiments of the invention, a toner charging device is provided which charges uncharged toner particles to a level sufficient for movement by one or the other of the aforementioned charged toner conveyors.

    摘要翻译： 静电印刷设备包括用于将显影剂或调色剂颗粒输送到形成打印装置的整体部分的打印头的结构。 或者，调色剂颗粒可以被输送到包含潜像的电荷保持表面。 显影剂或调色剂输送系统适于输送含有最小量的错误符号和尺寸调色剂的调色剂。 为此，显影剂输送系统包括一对以面对面的关系支撑的带电调色剂输送机。 跨越两个输送机施加偏置电压，以使一个电荷极性的调色剂被吸引到一个输送机上，而相反的调色剂被吸引到另一个输送机。 在另一个实施例中，单个带电调色剂输送机由一对三相发生器提供，该三相发生器由直流电源偏置，这导致一个极性的调色剂在电极阵列上沿一个方向行进，而相反极性的调色剂通常以 相反的方向。 在本发明的另外的实施例中，提供一种调色剂充电装置，其将不带电荷的调色剂颗粒装入足以使上述一个或另一个带电的调色剂输送机运动的水平。

    Graded bandgap xerographic plate
    10.
    发明授权
    Graded bandgap xerographic plate 失效
    分级带隙静电印版

    公开(公告)号：US4088485A

    公开(公告)日：1978-05-09

    申请号：US624361

    申请日：1975-10-21

    申请人： Samuel W. Ing ,  Fred W. Schmidlin

    发明人： Samuel W. Ing ,  Fred W. Schmidlin

    IPC分类号： G03G5/00 ,  G03G5/043 ,  G03G5/06 ,  G03G5/082

    CPC分类号： G03G5/0433

    摘要： A xerographic plate and photoreceptor having improved speed and image resolution capability comprising a charge generating photoconductor layer, a trapping layer and a profile layer interposed between the trapping and charge generating layers; a suitable profile layer being obtained for xerographic purposes by utilizing materials from the charge generating and trapping layers having different band gaps but applied so as to obtain a gradation or gradient rather than a sharp interface.

    摘要翻译： 具有改进的速度和图像分辨能力的静电印版和感光体包括电荷产生光电导层，捕获层和介于陷阱和电荷产生层之间的轮廓层; 通过利用来自电荷产生的材料和具有不同带隙的捕获层而被施加以获得灰度或梯度而不是尖锐的界面，获得了用于静电复印目的的合适的轮廓层。