Toner application method and developer composition
    4.
    发明授权
    Toner application method and developer composition 失效
    调色剂应用方法和显影剂组成

    公开(公告)号:US4592987A

    公开(公告)日:1986-06-03

    申请号:US658787

    申请日:1984-10-09

    CPC分类号: G03G13/09 Y10S222/01

    摘要: A method for applying a toner comprising: forming, in a container containing a toner and magnetic particles for application of the toner, a magnetic brush of the magnetic particles; circulating the magnetic particles in the container; and forming a thin layer of the toner electrically charged on the toner carrying member; wherein the magnetic particles have a particle size distribution of 30 wt. % or more in the range of 150 to 200 mesh and 5 wt. % or less of under 250 mesh, and the weight ratio of the toner to the magnetic particles is from 5:95 to 50:50 in the region where the magnetic brush is formed.

    摘要翻译: 一种施加调色剂的方法,包括:在容纳调色剂的容器和用于施加调色剂的磁性颗粒的容器中形成磁性颗粒的磁刷; 将磁性颗粒循环在容器中; 以及形成在所述调色剂承载构件上带电的所述调色剂薄层; 其中所述磁性颗粒的粒度分布为30wt。 在150至200目和5wt。 %以下的250目以下,在形成磁刷的区域中,调色剂与磁性粒子的重量比为5:95〜50:50。

    Toner application method and composition therefor
    5.
    发明授权
    Toner application method and composition therefor 失效
    调色剂应用方法及其组成

    公开(公告)号:US4554234A

    公开(公告)日:1985-11-19

    申请号:US658788

    申请日:1984-10-09

    CPC分类号: G03G9/107 Y10S222/01

    摘要: A thin layer of triboelectrically charged toner for developing an electrostatic latent image is formed by forming a magnetic brush of magnetic particles in a container containing the toner and the magnetic particles, and circulating the magnetic brush in the container on a toner carrying member. In this case, a uniform layer of toner adapted for development is obtained, if the magnetic particles have specific shape characteristics such that, where each magnetic particle is assumed to be circumscribed with a rectangular parallelopiped having edge length of a, b and c satisfying a.gtoreq.b.gtoreq.c with the proviso that all of a, b and c are not the same, the average of b/a is from 0.4 to 1.0 and the average of c/a is from 0.4 to 0.95.

    摘要翻译: 通过在容纳调色剂和磁性颗粒的容器中形成磁性颗粒的磁刷,并将容器中的磁刷循环到调色剂承载构件上,形成用于显影静电潜像的薄层摩擦带电调色剂。 在这种情况下,如果磁性颗粒具有特定的形状特征,则可以获得均匀的调色剂层,如果假设每个磁性颗粒以具有a,b和c的矩形平行六面体外围,满足a > / = b> / = c,条件是a,b和c全部不相同,b / a的平均值为0.4〜1.0,c / a的平均值为0.4〜0.95。

    Method for coating a non-magnetic developer onto a developer holding
member
    6.
    发明授权
    Method for coating a non-magnetic developer onto a developer holding member 失效
    将非磁性显影剂涂布在显影剂保持部件上的方法

    公开(公告)号:US4571372A

    公开(公告)日:1986-02-18

    申请号:US602010

    申请日:1984-04-19

    CPC分类号: G03G13/09

    摘要: A method for coating of a developer comprises using a device having a vessel for storing a non-magnetic developer and magnetic particles, a developer holding member which conveys with rotation the non-magnetic developer to a latent image bearing member, a regulating member positioned on the side of the outlet of the above vessel for feeding the non-magnetic developer and arranged on the developer holding member with a gap formed therebetween, and a magnetic pole arranged on the side opposite to the regulating member through the intermediary developer holding member for forming a magnetic brush with the magnetic particles on the upstream side of the regulating member on the developer outlet side of said vessel; andforming a thin layer of the non-magnetic developer on the developer holding member, said magnetic particles having a magnetization of 30 emu/g or higher in the external magnetic field of 5000 oersted.

    摘要翻译: 用于涂覆显影剂的方法包括使用具有用于存储非磁性显影剂和磁性颗粒的容器的装置,将非磁性显影剂旋转而传送到潜像承载构件的显影剂保持构件,位于 上述容器的出口侧,用于供给非磁性显影剂并且布置在其上形成间隙的显影剂保持构件上,以及通过中间显影剂保持构件设置在与调节构件相对的一侧的磁极,用于形成 磁刷,其在所述容器的显影剂出口侧上的调节构件的上游侧具有磁性颗粒; 以及在所述显影剂保持部件上形成所述非磁性显影剂的薄层,所述磁性粒子在5000奥斯特的外部磁场中的磁化强度为30emu / g以上。

    Toner, charge-imparting material and composition containing substituted
guanidine compound for electrophotography
    8.
    发明授权
    Toner, charge-imparting material and composition containing substituted guanidine compound for electrophotography 失效
    调色剂,电荷赋予材料和包含用于电子照相术的取代胍化合物的组合物

    公开(公告)号:US4663263A

    公开(公告)日:1987-05-05

    申请号:US789016

    申请日:1985-10-18

    IPC分类号: G03G9/097 G03G15/08 G03G9/08

    摘要: A triboelectrically chargeable composition for use in development of electrostatic latent images. The composition contains a substituted guanidine compound having at least one substituent group. The substituted guanidine compound is preferably one represented by the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same or different groups including hydrogen atom, alkyl, cycloalkyl, alkenyl, aryl, aralkyl, alkaryl, and heterocyclic groups, of which a hydrogen atom may be further replaced by a substituent group, and at least one of R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 is a group other than hydrogen. The composition is embodied typically as a positively chargeable toner and also as a charge-imparting material for charging a toner.

    摘要翻译: 用于静电潜像显影的摩擦电荷充电组合物。 该组合物含有具有至少一个取代基的取代的胍化合物。 取代的胍化合物优选为由下式表示的化合物:其中R 1,R 2,R 3,R 4和R 5是相同或不同的基团,包括氢原子,烷基,环烷基,烯基,芳基,芳烷基,烷芳基和杂环基, 其中氢原子可以进一步被取代基取代,R 1,R 2,R 3,R 4和R 5中的至少一个是除氢以外的基团。 该组合物通常体现为可充正电的调色剂,并且还作为用于带电调色剂的电荷赋予材料。

    Method for developing electrostatic latent image with non-magnetic toner
    10.
    发明授权
    Method for developing electrostatic latent image with non-magnetic toner 失效
    用非磁性调色剂显影静电潜像的方法

    公开(公告)号:US4666815A

    公开(公告)日:1987-05-19

    申请号:US658519

    申请日:1984-10-09

    CPC分类号: G03G13/08 G03G13/09

    摘要: A method for developing electrostatic latent images formed on an electrostatic image bearing member, particularly by a thin and uniform layer of toner formed on a toner carrying member. In the method, good images can be stably obtained by controlling the gross electric charge per unit area within the range of 3.times.10.sup.-10 to 10.sup.-7 coulomb/cm.sup.2 in terms of the absolute value thereof and the packing density within the range of 0.1 to 0.6 g/cm.sup.3 with respect to the toner layer carried on the toner carrying member at the developing station.

    摘要翻译: 一种用于在静电图像承载部件上形成静电潜像的方法,特别是在调色剂承载部件上形成的薄且均匀的调色剂层。 在该方法中,通过以3×10 -10〜10 -7库仑/ cm 2的范围内的单位面积的总电荷为绝对值,将填充密度控制在0.1〜 0.6g / cm 3相对于显影站上承载墨粉的载体上的调色剂层。