Wire-less hybrid scavengeless development system
    1.
    发明授权
    Wire-less hybrid scavengeless development system 有权
    无线混合扫描开发系统

    公开(公告)号:US06223013B1

    公开(公告)日:2001-04-24

    申请号:US09211264

    申请日:1998-12-14

    IPC分类号: G03G1508

    摘要: An apparatus for developing a latent image recorded on an imaging surface, including a housing defining a reservoir storing a supply of developer material including toner. A donor member is spaced from the imaging surface, for transporting toner on an outer surface of the donor member to a region opposed from the imaging surface. A mag roll loads toner onto a region of the outer surface of the donor member. A charging device ion charges the toner loaded on the region of the donor member. An AC/DC voltage supply for biasing the donor member positioned in close proximity to the imaging member to detach toner from the donor member as to form a toner cloud for developing the latent image. A second charging device discharges and removes residual toner on the region of the donor and returning the toner to the reservoir.

    摘要翻译: 一种用于显影记录在成像表面上的潜像的装置,包括限定存储包含调色剂的显影剂材料供应的储存器的壳体。 供体构件与成像表面间隔开,用于将供体构件的外表面上的调色剂输送到与成像表面相对的区域。 磁辊将调色剂负载到供体构件的外表面的区域上。 充电装置离子对装载在供体构件的区域上的调色剂进行充电。 一种AC / DC电压源,用于偏置定位在成像构件附近的施主构件,以从供体构件上分离调色剂,以形成用于显影潜像的调色剂云。 第二充电装置排出并去除供体区域上的残留调色剂并将调色剂返回到储存器。

    Ion charging development system to deliver toner with low adhesion
    2.
    发明授权
    Ion charging development system to deliver toner with low adhesion 失效
    离子充电开发系统提供低附着力的调色剂

    公开(公告)号:US5899608A

    公开(公告)日:1999-05-04

    申请号:US36731

    申请日:1998-03-09

    IPC分类号: G03G15/10 G03G15/08

    摘要: Interdigitated electrodes on a donor roll enable uncharged toner to be picked up from a fluidized bed reservoir. This layer of toner is subsequently charged by exposure to a corona device and delivered to a development zone, where it is used to develop an electrostatic latent image. Residual toner on the donor is neutralized by exposure to a second corona device and then stripped for return to the fluidized bed by applying an AC voltage between adjacent donor electrodes. So-called ion charging of the toner is known to cause the particles to have low adhesion, allowing development with DC fields alone. Optionally, an AC voltage can also be applied to adjacent donor electrodes in the development zone to enhance particle release. In addition to providing a means to impart adequate flow to the toner in this single component development system, the fluidized bed reservoir, in conjunction with ion charging, also provides a means for blending dry powder toners to achieve custom color development.

    摘要翻译: 供体辊上的交错电极使得不能充电的调色剂从流化床容器中被拾取。 该层调色剂随后通过暴露于电晕装置而被充电并被输送到显影区域,在显影区域用于显影静电潜像。 供体上的剩余调色剂通过暴露于第二电晕装置中和,然后通过在相邻施主电极之间施加交流电压而剥离以返回流化床。 已知调色剂的所谓的离子充电导致颗粒具有低粘附性,从而允许单独用DC场进行显影。 可选地,也可以将AC电压施加到开发区中的相邻供体电极以增强颗粒释放。 除了提供在该单一组分显影系统中赋予调色剂足够流动的方法之外,流化床储存器与离子充电一起也提供了一种用于混合干粉调色剂以实现定制显色的方法。

    Integrated toner transport/toner charging device
    3.
    发明授权
    Integrated toner transport/toner charging device 有权
    集成墨粉输送/墨粉充电装置

    公开(公告)号:US06175707B1

    公开(公告)日:2001-01-16

    申请号:US09451237

    申请日:1999-11-29

    IPC分类号: G03G1508

    摘要: An apparatus for developing a latent image recorded on an imaging surface, including a housing defining a chamber for storing a supply of developer material including toner; a dispensing system for dispensing toner of a first color and toner of a second color into said housing; an air system for fuildizing and mixing toner of said first color and toner of said second color; a donor member, spaced from the imaging surface, for transporting toner on the surface thereof to a region opposed from the imaging surface, said donor member includes an electrode array on the outer surface thereof, said array including a plurality of spaced apart electrodes extending substantial across width of the surface of the donor member; and a multi-phase voltage source operatively coupled to said electrode array, the phase being shifted with respect to each other such as to create an electrodynamic wave pattern for moving toner particles to and from a development zone.

    摘要翻译: 一种用于显影记录在成像表面上的潜像的装置,包括限定用于存储包含调色剂的显影剂材料供应的室的壳体; 用于将第一颜色的调色剂和第二种颜色的调色剂分配到所述外壳中的分配系统; 用于引发和混合所述第一颜色的调色剂和所述第二颜色的调色剂的空气系统; 与成像表面间隔开的用于将调色剂在其表面上传送到与成像表面相对的区域的施主构件,所述施主构件在其外表面上包括电极阵列,所述阵列包括多个间隔开的电极, 横跨供体构件表面的宽度; 以及可操作地耦合到所述电极阵列的多相电压源,所述相位相对于彼此移动,以产生用于将调色剂颗粒移动到显影区域和从显影区域移动调色剂颗粒的电动势波形图案。

    Color-blind melt flow index properties for toners
    5.
    发明授权
    Color-blind melt flow index properties for toners 有权
    调色剂的色盲熔体流动指数特性

    公开(公告)号:US06406822B1

    公开(公告)日:2002-06-18

    申请号:US09671997

    申请日:2000-09-29

    IPC分类号: G03G908

    摘要: At least three differently colored toners, designed for use together in forming a color image in an image developing device, have substantially the same melt flow index value. By substantially matching the melt flow index values of at least three toners of a set of toners, it has been found that the resultant color image has an overall excellent image quality, i.e., an excellent overall gloss level without any gloss banding. The toners may be made to have substantially the same melt flow index value in a carefully controlled process that includes forming a single toner by feeding at least one binder and at least one colorant into a mixing device to form a mixture, upon exit of the mixture from the mixing device, measuring a rheology property of the mixture with at least one monitoring device, and comparing the measured rheology property to a target property range that the measured rheology property must be within in order for the single toner to achieve the desired melt flow index value, wherein if the measuring indicates that the rheology property is outside of the target property range, feed amounts of the at least one binder or of the at least one colorant into the mixing device are adjusted, grinding the mixture, optionally together with a portion of one or more external additives to be added to the mixture, classifying the ground mixture, mixing the classified mixture with one or more external surface additives to obtain the single toner having the desired melt flow index value, and repeating the steps for each additional differently colored toner.

    摘要翻译: 设计用于在图像显影装置中形成彩色图像一起使用的至少三种不同颜色的调色剂具有基本上相同的熔体流动指数值。 通过基本上匹配一组调色剂的至少三种调色剂的熔体流动指数值,已经发现所得到的彩色图像具有总体优异的图像质量,即没有任何光泽条纹的优异的整体光泽度。 调色剂可以在仔细控制的方法中具有基本上相同的熔体流动指数值,包括通过在混合物出口时将至少一种粘合剂和至少一种着色剂进料到混合装置中形成混合物来形成单一调色剂 从混合装置测量混合物与至少一个监测装置的流变性质,并将所测量的流变性能与所测量的流变性能必须在其中的目标性能范围进行比较,以使单个调色剂达到所需的熔体流动 指数值,其中如果测量表明流变性能在目标特性范围之外,则调节至少一种粘合剂或至少一种着色剂进入混合装置的进料量,任选地与 一部分添加到混合物中的外部添加剂,将研磨的混合物分级,将分级的混合物与一个或多个外表面 添加剂以获得具有所需熔体流动指数值的单一调色剂,并且对于每种附加的不同颜色的调色剂重复步骤。