Method of replenishing developer in a hybrid scavengeless development system
    2.
    发明授权
    Method of replenishing developer in a hybrid scavengeless development system 有权
    补充开发商在混合型无风开发系统中的方法

    公开(公告)号:US06248496B1

    公开(公告)日:2001-06-19

    申请号:US09520361

    申请日:2000-03-07

    IPC分类号: G03G900

    摘要: A replenisher material of toner particles and carrier particles, wherein a replenisher ratio of the toner particles to the carrier particles in the replenisher is determined as a function of at least one property of the developer and at least one operational property of an apparatus for developing an electrostatic latent image recorded on an image receiving member, and wherein the apparatus includes a housing defining a chamber having a supply of developer comprised of toner particles and carrier particles therein, a donor member spaced from the image receiving member and adapted to transport toner particles of the developer from the chamber to a development zone adjacent the image receiving member, at least one wire positioned in the development zone between the image receiving member and the donor member, a voltage supply for electrically biasing the at least one wire during a developing operation with a current to detach toner particles from the donor member, forming a cloud of toner particles in the development zone, and developing the latent image with toner particles from the cloud, and at least one dispenser for dispensing replenisher comprised of toner particles and carrier particles into the chamber, wherein a replenisher ratio of the toner particles to the carrier particles in the replenisher is determined as a function of at least one property of the developer and at least one operational property of the apparatus. The replenisher ratio is preferably determined as a function of the tribo stability of the developer in a non-replenishment mode of the apparatus and/or as a function of the conductivity of the developer in a non-replenishment mode of the apparatus.

    摘要翻译: 调色剂颗粒和载体颗粒的补充剂材料,其中调色剂颗粒与补充液中的载体颗粒的补充比被确定为显影剂的至少一种性能的函数,以及用于显影剂的装置的至少一个操作性质 静电潜像被记录在图像接收部件上,并且其中所述装置包括限定腔室的壳体,所述腔室具有由其中的调色剂颗粒和载体颗粒构成的显影剂供应源,所述供体构件与图像接收构件间隔开并且适于传送调色剂颗粒 所述显影剂从所述腔室到邻近所述图像接收构件的显影区域,位于所述图像接收构件和所述施主构件之间的所述显影区域中的至少一根导线,用于在显影操作期间使所述至少一根电线电偏置的电压源, 从供体构件分离调色剂颗粒的电流,形成一种色调 r颗粒,以及从云中用调色剂颗粒显影潜像,以及用于将由调色剂颗粒和载体颗粒组成的补充剂分配到室中的至少一个分配器,其中调色剂颗粒与载体颗粒的补料比 根据显影剂的至少一个性质和装置的至少一个操作特性确定补充器中的补充器。 优选地,根据装置的非补充模式中的显影剂的摩擦稳定性和/或作为装置的非补充模式中的显影剂的电导率的函数来确定补充剂比。

    Toner and developer providing offset lithography print quality
    7.
    发明授权
    Toner and developer providing offset lithography print quality 有权
    提供胶版印刷质量的墨粉和显影剂

    公开(公告)号:US06242145B1

    公开(公告)日:2001-06-05

    申请号:US09520437

    申请日:2000-03-07

    IPC分类号: G03G908

    摘要: A developer of a mixture of carrier particles and toner particles containing at least one binder, at least one colorant, and optionally one or more additives, has a triboelectric value of from 35 to 60 &mgr;C/g, a charge distribution (Q/D) of from −0.5 to −1.0 fC/&mgr;m and the distribution is substantially unimodal and possesses a peak width of less than 0.5 fC/&mgr;m, preferably less than 0.3 fC/&mgr;m, and a conductivity of the developer ranges from 1×10−11 to 10×10−15 mho/cm as measured at 30 V. The carrier particles of the developer preferably have an average particle diameter of 65 to 90 microns and a size distribution wherein 2.0% or less of a total number of carrier particles have a size less than 38 micrometers. The ratio of carrier volume median diameter to toner volume median diameter is about 10:1. The developer finds particular use in devices utilizing hybrid scavengeless development. Use of a developer with such properties in a hybrid scavengeless development apparatus enables images to be achieved with properties similar to that achieved in offset lithography.

    摘要翻译: 载体颗粒和含有至少一种粘合剂,至少一种着色剂和任选的一种或多种添加剂的调色剂颗粒的混合物的显影剂的摩擦电压值为35至60μC/ g,电荷分布(Q / D) 为-0.5至-1.0 fC / mum,分布基本上为单峰,峰值宽度小于0.5 fC / mum,优选小于0.3 fC / mum,显影剂的电导率为1×10-11至10x10 -15mho / cm。显影剂的载体颗粒优选具有65至90微米的平均粒径,其中载体颗粒总数的2.0%或更小的尺寸小于38的尺寸分布 微米。 载体体积中值直径与调色剂体积中值直径的比例为约10:1。 开发人员发现在使用混合型无风险开发的设备中特别有用。 在具有这种特性的显影剂中使用具有这种特性的混合扫描装置能够以与胶版印刷法相似的性质来实现图像。