Electrophotographic toner and development process with improved image and fusing quality
    2.
    发明授权
    Electrophotographic toner and development process with improved image and fusing quality 有权
    电子照相色调和显影过程具有改进的图像和融合质量

    公开(公告)号:US06797448B2

    公开(公告)日:2004-09-28

    申请号:US10138840

    申请日:2002-05-03

    IPC分类号: G03O1509

    摘要: Development systems and methods for developing using toner are disclosed. The present invention further discloses developers used in development systems. With respect to the development system, a development system is disclosed which includes a supply of dry developer mixture which contains toner particles and hard magnetic carrier particles. The development system further includes a non-magnetic, cylindrical shell for transporting the developer between the supply and the development zone, wherein the shell can be rotatable or stationary. A rotating magnetic core of a pre-selected magnetic field strength and means for rotating at least the magnetic core to provide for the transport of the toner particles from the shell to an electrostatic image also provided as part of the development system. The development system of the present invention further includes a fuser roll which is coated with a silicone rubber or other low surface energy elastomer or resin. The fuser roll is preferably in a pressure contact arrangement with a backup or pressure roll. The images resulting from the development system of the present invention have an excellent combination of properties, in particular, the prints resulting from the development process of the present invention have improved image quality in combination with excellent fusing quality. A method for developing electrostatic images with toner is further disclosed, for example, involving the above-described development system.

    摘要翻译: 公开了使用调色剂显影的显影系统和方法。 本发明还公开了开发系统中使用的开发者。 关于显影系统,公开了一种显影系统,其包括供给包含调色剂颗粒和硬磁性载体颗粒的干显影剂混合物。 显影系统还包括用于在供应和显影区域之间输送显影剂的非磁性圆柱形壳体,其中壳体可旋转或静止。 具有预选磁场强度的旋转磁芯和用于至少旋转磁芯以提供将调色剂颗粒从外壳传送到静电图像的装置,还提供作为显影系统的一部分。 本发明的显影系统还包括涂覆有硅橡胶或其它低表面能弹性体或树脂的定影辊。 定影辊优选地具有与备用或压力辊的压力接触装置。 由本发明的显影系统产生的图像具有优异的性能组合,特别是由本发明的显影过程产生的印刷品具有改进的图像质量以及优异的定影质量。 例如涉及上述显影系统的方法进一步公开了一种利用调色剂显影静电图像的方法。

    Moisture stable biasable transfer members and method for making same
    3.
    发明授权
    Moisture stable biasable transfer members and method for making same 失效
    湿度稳定的偏转传递元件及其制造方法

    公开(公告)号:US5011739A

    公开(公告)日:1991-04-30

    申请号:US416100

    申请日:1989-10-02

    IPC分类号: G03G5/02 G03G15/16

    摘要: The invention provides rolls, belts and other biasable members having at least one layer or coating of an elastomeric resilient crosslinked polyurethane formed by reacting (a) a polyisocyanate prepolymer comprising the reaction product of an aliphatic polyisocyanate and a polyether polyol, specifically a polyalkylene glycol in which the alkylene group contains 2 to 3 carbon atoms, and (b) a hardening mixture comprising a polyether polyol of (a) and, as a conductivity control agent, from 0.01 to 3.0 weight percent based on the total weight of (b) of a complex of an oligoethylene glycol selected from the group consisting of di-, tri- and tetraethylene glycol with an ionizable alkali metal salt selected from the group consisting of sodium iodide, lithium iodide and sodium thiocyanate.The resistivity of the elastomeric resilient polyurethane coating on the biasable member is controlled or adjusted to within a desired level of resistivity due to the inclusion of the conductivity control agent in the crosslinked polyurethane elastomer. Additionally, the inclusion of the conductivity control agent in the crosslinked polyurethane elastomer reduces the sensitivity of the resistivity of the polyurethane coating on the biasable member to changes in relative humidity. Further, since the conductivity control agent is copolymerized with the polyisocyanate prepolymers and polyols used to make the elastomeric polyurethane coatings of the biasable members of the invention, the conductivity control agent is bonded covalently to the backbone and/or the crosslinking portion of the polyurethane elastomer where it forms a permanently fixed part of the crosslinked polymer and will not migrate therefrom resulting in a continuous change in the resistivity of the polyurethane coating over time and possible adverse affects on materials that may come into contact with the migrating agent. The utility of such biasable members is in the transfer of toner images from a photoconductor to a final support sheet where the member, for example, a bias transfer roll, electrically cooperates with a photoconductor to establish a directional force field therebetween.

    ELECTROSTATOGRAPHIC METHOD
    4.
    发明申请
    ELECTROSTATOGRAPHIC METHOD 审中-公开
    电子方法

    公开(公告)号:US20090116882A1

    公开(公告)日:2009-05-07

    申请号:US12348924

    申请日:2009-01-06

    IPC分类号: G03G15/20

    CPC分类号: G03G15/162 G03G2215/1614

    摘要: The present invention is a method of forming a toner image on a receiving sheet. The method includes forming an electrostatic image on a primary image member and toning the image with a dry toner to form a toner image. The toner includes toner particles having a diameter of between 4 and 10 microns and transfer assisting particles appended to the toner particles surface. The transfer assisting particles have a diameter of between 20 and 100 nm. The toner image is transferred from the primary image member to an intermediate image member having an overcoat layer, the overcoat layer having a Young's modulus of from 250 to 500 MPa. The toner image is transferred from the intermediate image member to a receiving sheet wherein the intermediate image member drives the primary image member or the receiving sheet.

    摘要翻译: 本发明是在接收片上形成调色剂图像的方法。 该方法包括在主图像构件上形成静电图像并用干调色剂调色图像以形成调色剂图像。 该调色剂包括直径为4至10微米的调色剂颗粒和附着在调色剂颗粒表面上的转移辅助颗粒。 转移辅助颗粒的直径为20-100nm。 调色剂图像从初级图像构件转印到具有外涂层的中间图像构件,该外涂层的杨氏模量为250-500MPa。 调色剂图像从中间图像构件传送到接收片材,其中中间图像构件驱动主图像构件或接收片材。

    Fusing member comprising fluorine-containing elastomers useful in
electrostatography
    6.
    发明授权
    Fusing member comprising fluorine-containing elastomers useful in electrostatography 失效
    定影构件包含用于静电照相的含氟弹性体

    公开(公告)号:US5248339A

    公开(公告)日:1993-09-28

    申请号:US874264

    申请日:1992-04-24

    IPC分类号: C08G79/02 G03G15/20

    CPC分类号: C08G79/025 G03G15/2057

    摘要: An electrostatographic toner fusing member having a support and a layer containing a crosslinked polyfluorophosphazene elastomer with thermally conductive filler particles. This fusing member is used in a device for fusing electrostatographic toner materials to a substrate which device employs both heat and pressure The fusing member exhibits an excellent combination of properties, including resistance to swelling by release liquids, resistance to thermal degradation and thermal conductivity that is superior to prior art fusing members employing crosslinked fluoroelastomers.

    摘要翻译: 一种具有支撑体和含有具有导热填料颗粒的交联聚氟膦腈弹性体的层的静电色调剂定影构件。 该定影构件用于将静电色调调色剂材料熔合到基板上的装置中,该装置采用热和压力两者。该定影构件表现出优异的性能组合,包括抗释放液体的抗膨胀性,耐热降解性和导热性 优于使用交联的含氟弹性体的现有技术的熔合部件。

    Toner fusing device and method of using the same
    7.
    发明授权
    Toner fusing device and method of using the same 失效
    墨粉定影装置及其使用方法

    公开(公告)号:US5035927A

    公开(公告)日:1991-07-30

    申请号:US543925

    申请日:1990-06-26

    IPC分类号: C08G77/52 C08L83/14 G03G15/20

    摘要: A device for fusing and fixing electrophotographic toner powder to a receiver sheet and a method for using the same. The device comprises a first fusing member, such as a fusing roll, having a resilient surface for pressure contact with thermoplastic toner on the receiver sheet. A second member, which can be a non-resilient pressure roll, presses the toner into contact with the resilient surface. The device also is designed to heat the toner. The fusing member has a layer of an elastomeric, amorphous silarylene-siloxane alternating or random copolymer which is thermally stable, has good wear resistance, and good thermal conductivity and exhibits little or no swelling when contacted with poly(dimethylsiloxane) release oils.

    摘要翻译: 将电子照相调色剂粉末熔融和固定到接收片上的装置及其使用方法。 该装置包括第一定影构件,例如定影辊,其具有用于与接收片上的热塑性调色剂压力接触的弹性表面。 可以是非弹性压力辊的第二构件将调色剂压在弹性表面上。 该设备还设计用于加热调色剂。 定影构件具有热稳定性,耐磨性良好,导热性良好且与聚(二甲基硅氧烷)脱模油接触时很少或没有溶胀的弹性体,无定形的亚磺酰基 - 硅氧烷交替或无规共聚物层。

    Electrostatographic method using compliant intermediate transfer member
    8.
    发明授权
    Electrostatographic method using compliant intermediate transfer member 有权
    使用柔性中间转印部件的静电法

    公开(公告)号:US07488563B2

    公开(公告)日:2009-02-10

    申请号:US11250224

    申请日:2005-10-14

    IPC分类号: G03G15/16

    CPC分类号: G03G15/162 G03G2215/1614

    摘要: The present invention is a method of forming a toner image on a receiving sheet. The method includes forming an electrostatic image on a primary image member and toning the image with a dry toner to form a toner image. The toner includes toner particles having a diameter of between 4 and 10 microns and transfer assisting particles appended to the toner particles surface. The transfer assisting particles have a diameter of between 20 and 100 nm. The toner image is transferred from the primary image member to an intermediate image member having an overcoat layer, the overcoat layer having a Young's modulus of from 250 to 500 MPa. The toner image is transferred from the intermediate image member to a receiving sheet wherein the intermediate image member drives the primary image member or the receiving sheet.

    摘要翻译: 本发明是在接收片上形成调色剂图像的方法。 该方法包括在主图像构件上形成静电图像并用干调色剂调色图像以形成调色剂图像。 该调色剂包括直径为4至10微米的调色剂颗粒和附着在调色剂颗粒表面上的转移辅助颗粒。 转移辅助颗粒的直径为20-100nm。 调色剂图像从初级图像构件转印到具有外涂层的中间图像构件,该外涂层的杨氏模量为250-500MPa。 调色剂图像从中间图像构件传送到接收片材,其中中间图像构件驱动主图像构件或接收片材。

    Electrostatographic apparatus and method with programmable toner
concentration decline with the developer life
    9.
    发明授权
    Electrostatographic apparatus and method with programmable toner concentration decline with the developer life 有权
    具有可编程调色剂浓度的静电摄影装置和方法随着显影剂寿命而下降

    公开(公告)号:US6118953A

    公开(公告)日:2000-09-12

    申请号:US156821

    申请日:1998-09-18

    IPC分类号: G03G15/08 G03G15/10

    CPC分类号: G03G15/0849 G03G15/556

    摘要: In an electrostatographic process and apparatus a replenishment device adds toner particles to a development station that includes a developer comprising a mixture of toner particles and carrier particles. A reference parameter that is used in control of aim point of toner concentration in the mixture is set to an initial value until about a midlife of the developer is reached. Once the midlife of the developer is reached there are provided programmed step adjustments in the reference value in accordance with further increases in life of the developer to thereby control replenishment of toner particles so that control of charge to mass of the toner particles in the mixture is provided to reduce a tendency of dusting by the toner particles of the mixture due to age of the developer.

    摘要翻译: 在静电摄影方法和装置中,补充装置将调色剂颗粒添加到显影站,显影剂包括包含调色剂颗粒和载体颗粒的混合物的显影剂。 将用于控制混合物中调色剂浓度目标点的参考参数设定为初始值,直到达到显影剂的中等寿命。 一旦达到显影剂的中等寿命,根据显影剂寿命的进一步增加,提供了参考值中的编程阶梯调节,从而控制调色剂颗粒的补充,从而控制混合物中调色剂颗粒的质量 被提供以减少由于显影剂的老化而导致的混合物的调色剂颗粒的粉尘倾向。

    Thermally stable release agents
    10.
    发明授权
    Thermally stable release agents 失效
    耐热稳定的脱模剂

    公开(公告)号:US5604039A

    公开(公告)日:1997-02-18

    申请号:US589666

    申请日:1996-01-22

    IPC分类号: C09D183/04 G03G15/20 B32B9/04

    摘要: This invention provides a release agent consisting of a blend of poly(organosiloxane) fluid and phenol-functionalized poly(organosiloxane) fluid which when used at elevated temperatures does not produce insoluable or undesirable by-products or gellation. The release agent is particularly suited for application to a fuser member for fusing toner images to a receiver.

    摘要翻译: 本发明提供了由聚(有机硅氧烷)流体和酚官能化的聚(有机硅氧烷)流体的共混物组成的脱模剂,当在高温下使用时,其不会产生不可溶的或不合需要的副产物或凝胶。 脱模剂特别适用于将调色剂图像定影到接收器的定影器构件。