Process for positive charge sharing toner compositions
    21.
    发明授权
    Process for positive charge sharing toner compositions 失效
    正电荷共享调色剂组合物的方法

    公开(公告)号:US4426436A

    公开(公告)日:1984-01-17

    申请号:US296609

    申请日:1981-08-26

    CPC分类号: G03G13/08

    摘要: This invention relates to a process for rapidly charging uncharged toner particles to a positive polarity, which comprises adding uncharged toner particles to a positively charged developer composition comprising carrier particles and toner particles, the charged and uncharged toner particles containing conductive particles or conductive patches on their surface, which conductive patches are of a higher positive triboelectric charge than the toner polymer, contacting the charged toner particles with the uncharged toner particles causing positive charges to be transferred from the conductive particles on the charged toner particles, to conductive particles on the uncharged toner particles, within a period of from about 5 seconds to about 2 minutes, thereby resulting in substantially the same level of positive charge intensity for both the original charged toner particles and the added toner particles, such charge intensity ranging from about 5 microcoulombs per gram to about 50 microcoulombs per gram.

    摘要翻译: 本发明涉及将不带电荷的调色剂颗粒快速地充电到正极性的方法,该方法包括将不带电荷的调色剂颗粒添加到包含载体颗粒和调色剂颗粒的带正电荷的显影剂组合物中,所述带电和不带电荷的调色剂颗粒在其上包含导电颗粒或导电贴片 表面,哪些导电贴片具有比调色剂聚合物更高的正摩擦电荷,使带电的调色剂颗粒与不带电的调色剂颗粒接触,导致正电荷从带电的调色剂颗粒上的导电颗粒转移到未充电的调色剂上的导电颗粒 颗粒,在约5秒至约2分钟的时间内,从而导致原始带电的调色剂颗粒和所添加的调色剂颗粒的正电荷强度基本相同的水平,这种电荷强度范围为约5微克/克至 约50 microcou 克/克。

    Apparatus and method for non-interactive electrophotographic development and carrier bead composition therefor
    23.
    发明授权
    Apparatus and method for non-interactive electrophotographic development and carrier bead composition therefor 失效
    用于非互动电子照相显影的装置和方法及其载体珠组成

    公开(公告)号:US06821700B2

    公开(公告)日:2004-11-23

    申请号:US10322041

    申请日:2002-12-17

    申请人: Richard B. Lewis

    发明人: Richard B. Lewis

    IPC分类号: G03G9113

    摘要: An apparatus and method for non-interactive, dry powder development of electrostatic images includes an image bearing member bearing an electrostatic image; two component developer comprising toner and permanently magnetized thickly coated carrier beads, the coated carrier beads having magnetizable core radius r, average radius a, and magnetization Mb, with the ratio r/a being given as K; a developer transporting member having a thickness t for transporting a developer layer of the two component developer, wherein the layer is spaced close to and out of contact with the image bearing member, a multipole magnet member disposed in close proximity to the transporting member and moving relative to it so as to sweep poles across its surface, the magnet member having a periodic magnetization of spatial frequency k and a peak magnetization M0 wherein Mb, t, k, and M0, are chosen such that Mb is sufficiently large to prevent the escape of developer, a quantity C in the equation C = 2.2 ⁢ ( M 0 M b ) ⁢ 1 K 3 ⁢ ⅇ - k ⁢   ⁢ t ⁢ k ⁢   ⁢ a is greater than about ⅓, and the ratio K is a quantity less than about ¾, and preferably less than about ½, so as to weaken bead-bead interaction and thus enhance the desired provision of a compressed developer layer.

    摘要翻译: 用于静电图像的非交互式干粉显影的装置和方法包括承载静电图像的图像承载部件; 包括调色剂和永久磁化的厚涂层载体珠的双组分显影剂,涂覆的载体珠具有可磁化的芯半径r,平均半径a和磁化Mb,比率r / a给定为K; 具有用于输送双组分显影剂的显影剂层的厚度t的显影剂传送构件,其中所述层与图像承载构件接近和脱离接触;多极磁体构件,其设置在靠近传送构件并移动 相对于它,以便跨过其表面扫过磁极,选择具有空间频率k的周期磁化的磁体部件和其中Mb,t,k和M0的峰值磁化M0,使得Mb足够大以防止逃逸 的显影剂,等式中的量C大于约1/3,并且比率K是小于约3/3,优选小于约1/2的量,以减弱珠 - 珠相互作用,从而增强了所需的 压缩显影剂层。

    Method and apparatus for removing fluid from the surface of a liquid
developed image
    24.
    发明授权
    Method and apparatus for removing fluid from the surface of a liquid developed image 失效
    从液体显影图像表面去除流体的方法和装置

    公开(公告)号:US5987284A

    公开(公告)日:1999-11-16

    申请号:US939535

    申请日:1997-09-29

    申请人: Richard B. Lewis

    发明人: Richard B. Lewis

    IPC分类号: G03G15/11 G03G15/00

    CPC分类号: G03G15/11

    摘要: A method and apparatus for improving the quality of an image that is developed by a liquid carrier is disclosed. The invention relates to image blotting and is directed to reducing disruptive forces on the wet image during blotting. The invention relates to the conditions under which liquid carrier is removed from the surface of an image supportable member.

    摘要翻译: 公开了一种用于提高由液体载体开发的图像的质量的方法和装置。 本发明涉及图像印迹,并且旨在减少印迹过程中湿图像上的破坏力。 本发明涉及液体载体从图像可支撑构件表面去除的条件。

    Multi-point contact charging device
    25.
    发明授权
    Multi-point contact charging device 失效
    多点接触式充电装置

    公开(公告)号:US5832346A

    公开(公告)日:1998-11-03

    申请号:US939642

    申请日:1997-09-29

    申请人: Richard B. Lewis

    发明人: Richard B. Lewis

    IPC分类号: G03G15/02

    摘要: An device for applying an electrical charge to a member to be charged such as a charge retentive surface in an electrostatographic printing apparatus, including a multi-contact point conductive charging device positioned in contact with the member to be charged. The charging device includes multiple electrically isolated conductive blades which are independently electrically biased at predetermined voltage levels so as not to exceed a Paschen threshold voltage differential. Alternative embodiments are disclosed incorporating conductive blade members, as well as ionically conductive liquid carrying donor members. In operation, the charging device of the present invention permits generation of a charge potential on the photoreceptor significantly greater than the Paschen threshold voltage, while avoiding air breakdown.

    摘要翻译: 一种用于将电荷施加到诸如静电打印设备中的电荷保持表面的待充电部件的装置,包括定位成与待充电部件接触的多点导电充电装置。 充电装置包括多个电隔离的导电叶片,它们以预定的电压电平独立地电偏置,以便不超过帕邢阈值电压差。 公开了另外的实施例,其结合导电叶片构件以及携带供体构件的离子导电液体。 在操作中,本发明的充电装置允许在感光体上产生明显大于帕邢阈值电压的电荷电位,同时避免空气击穿。

    Electrostatic imaging member for contact charging and imaging processes
thereof
    26.
    发明授权
    Electrostatic imaging member for contact charging and imaging processes thereof 失效
    用于接触充电的静电成像构件及其成像方法

    公开(公告)号:US5714248A

    公开(公告)日:1998-02-03

    申请号:US695928

    申请日:1996-08-12

    申请人: Richard B. Lewis

    发明人: Richard B. Lewis

    IPC分类号: G03G5/10 B32B18/00

    摘要: An imaging member comprised of a supporting substrate with a coating thereover and wherein the coating is comprised of resin, electrically conductive metal oxide particles, and insulative metal oxide particles, wherein each electrically conductive particle is substantially electrically isolated and separated from any other of the electrically conductive particles by the insulative particles.

    摘要翻译: 一种成像构件,其由其上具有涂层的支撑基底构成,并且其中所述涂层由树脂,导电金属氧化物颗粒和绝缘金属氧化物颗粒组成,其中每个导电颗粒基本上电隔离并与电气中的任何其它电极分离 导电颗粒由绝缘颗粒。

    Rapid wake up fuser
    27.
    发明授权
    Rapid wake up fuser 失效
    快速唤醒定影器

    公开(公告)号:US5602635A

    公开(公告)日:1997-02-11

    申请号:US584791

    申请日:1996-01-11

    IPC分类号: G03G15/20 G05D23/19 H05B3/00

    CPC分类号: G03G15/2053 G03G15/2064

    摘要: An apparatus for fusing images to a sheet. A fuser device is provided using a transparent fusing roll having an internal heating device which focuses the energy to a narrow area of the roll adjacent the nip formed with a pressure roll. A transparent fuser roll is used in a pressure nip fusing system to take advantage of the quick response of a focused lamp system while at the same time yielding the desirable image quality attributes of the pressure nip in two roll fusing. The focused lamp is completely enclosed and the heated region of the paper is within the nip contact region so there exists no possibility of igniting the paper. A lateral temperature smoothing device, or leveling roll, is also provided to maintain a fairly uniform temperature axially across the fuser roll. This is particularly useful for a wide fuser roll, i.e., 17 inches, through which narrower paper, i.e., 11 or 14 inches, is passing to prevent the ends of the fuser roll which do not contact the paper from overheating. A quick start up from cold start is possible so that no standby power is required.

    摘要翻译: 用于将图像融合到片材的装置。 使用具有内部加热装置的透明定影辊来提供定影装置,所述内部加热装置将能量聚焦到邻近形成有压力辊的辊隙的辊的窄区域。 在压力压合系统中使用透明的定影辊以利用聚焦灯系统的快速响应,同时在两辊定影中产生压力压区的期望图像质量属性。 聚焦灯完全封闭,纸张的加热区域在压区接触区域内,因此不存在点燃纸张的可能性。 还提供横向温度平滑装置或流平辊以在定影辊上轴向保持相当均匀的温度。 这对于较宽的定影辊(即17英寸)特别有用,较窄的纸张即11或14英寸通过该定影辊,以防止定影辊的不接触纸张的端部过热。 从冷启动快速启动是可能的,因此不需要待机电源。

    Development system producing reduced airborne toner contamination
    29.
    发明授权
    Development system producing reduced airborne toner contamination 失效
    开发系统可以减少空气中的碳粉污染

    公开(公告)号:US5864734A

    公开(公告)日:1999-01-26

    申请号:US897589

    申请日:1997-07-21

    IPC分类号: G03G15/08 G03G21/00

    CPC分类号: G03G15/0803 G03G2215/0643

    摘要: An apparatus for powder cloud development of an electrostatic image in which a donor roll advances toner to a development zone adjacent the image, and in which precipitating electric fields are provided at the entrance and exit of the development zone to redeposit undeveloped toner onto the surface of the doner member, whereby unwanted airborne emissions of toner are substantially reduced.

    摘要翻译: 一种用于静电图像的粉末云显影的装置,其中供体辊将调色剂推进到与图像相邻的显影区,并且其中在显影区的入口和出口处设置了沉淀电场,以将未显影的调色剂重新沉积在 因此,不利的空气中的调色剂排放量明显降低。

    Carrier composition and processes thereof
    30.
    发明授权
    Carrier composition and processes thereof 失效
    载体组成及其工艺

    公开(公告)号:US5795692A

    公开(公告)日:1998-08-18

    申请号:US829665

    申请日:1997-03-31

    申请人: Richard B. Lewis

    发明人: Richard B. Lewis

    IPC分类号: G03G9/113 G03G9/107

    CPC分类号: G03G9/1075

    摘要: A carrier composition comprised of a core comprised of a magnetic oxide with a coating thereover comprised of the reaction product of a metal, preferably a zinc vapor and the magnetic oxide.

    摘要翻译: 一种载体组合物,其由包含金属氧化物的核心组成,其中包含金属,优选锌蒸气和磁性氧化物的反应产物。