Method of replenishing developer in a hybrid scavengeless development system
    1.
    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
    3.
    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。

    Process for charging toner compositions
    5.
    发明授权
    Process for charging toner compositions 失效
    调色剂组合物的加工方法

    公开(公告)号:US4524120A

    公开(公告)日:1985-06-18

    申请号:US582211

    申请日:1984-02-21

    CPC分类号: G03G13/08 G03G9/1134

    摘要: An improved process for rapidly charging toner particles which comprises (I) adding uncharged replenishment toner particles to a charged developer composition comprised of carrier particles and toner particles, the carrier particles consisting of a core containing a continuous polymer coating thereover having incorporated therein a fluoropolymer, contained on from about 1 percent to about 20 percent of the surface area of the coating, (II) contacting the charged developing composition containing said carrier particles with uncharged toner particles wherein charges are transferred to the uncharged toner particles within a mixing period of from about 5 seconds to about 5 minutes, thereby resulting in substantially the same level of charge intensity for said uncharged toner particles as the charge intensity for the charged toner particles in the charged developer composition, which charge intensity for example is from about 5 microcoulombs per gram to about 50 microcoulombs per gram of toner particles.

    摘要翻译: 一种用于快速充电调色剂颗粒的改进方法,其包括(I)将不带电荷的补充调色剂颗粒添加到由载体颗粒和调色剂颗粒组成的带电显影剂组合物中,所述载体颗粒由其中包含其中的含氟聚合物的含有连续聚合物涂层的核心组成, 其含量为涂层表面积的约1%至约20%,(II)使含有载体颗粒的带电荷显影组合物与不带电荷的调色剂颗粒接触,其中将电荷转移至不带电量的调色剂颗粒,其混合时间为约 5秒至约5分钟,从而导致所述不带电荷的调色剂颗粒的充电强度基本上与充电显影剂组合物中带电调色剂颗粒的充电强度相同,其电荷强度例如为约5微克/克至 每克约50微库仑 神经颗粒。

    Emulsion aggregation black toner and developer with superior image quality
    8.
    发明授权
    Emulsion aggregation black toner and developer with superior image quality 有权
    乳液聚集黑色调色剂和显影剂具有卓越的图像质量

    公开(公告)号:US07157200B2

    公开(公告)日:2007-01-02

    申请号:US10839293

    申请日:2004-05-06

    IPC分类号: G03G9/087

    摘要: A black toner of toner particles including at least one binder, at least one black colorant, and a package of external additives is described, wherein the at least one binder includes a styrene acrylate binder and wherein the external additives include each of a first silica having an average particle size of from about 35 to about 45 nm, a second silica having an average particle size of from about 135 to about 160 nm, and a titania having an average particle size of from about 35 to about 45 nm. Also described is a developer that includes the black toner and carrier particles comprising a core of ferrite coated with a coating comprising a polymethyl methacrylate polymer and fluoro-copolymer, carbon black and melamine beads. The black toner and developer are preferably used in a semiconductive magnetic brush development system.

    摘要翻译: 描述了包括至少一种粘合剂,至少一种黑色着色剂和外部添加剂的包装的调色剂颗粒的黑色调色剂,其中所述至少一种粘合剂包括苯乙烯丙烯酸酯粘合剂,并且其中所述外部添加剂包括具有 约35至约45nm的平均粒度,平均粒度为约135至约160nm的第二二氧化硅和平均粒径为约35至约45nm的二氧化钛。 还描述了包括黑色调色剂和载体颗粒的显影剂,其包含涂覆有包含聚甲基丙烯酸甲酯聚合物和氟共聚物,炭黑和三聚氰胺珠粒的涂层的铁氧体芯。 黑色调色剂和显影剂优选用于半导体磁刷显影系统中。