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    • 7. 发明授权
    • Dual levels of functional and non-reactive release agents for fusers
    • 功能和非反应性脱模剂的双重水平
    • US5943542A
    • 1999-08-24
    • US004721
    • 1998-01-08
    • Edul N. DalalRobert J. GruberRabin Moser
    • Edul N. DalalRobert J. GruberRabin Moser
    • G03G15/20
    • G03G15/2025G03G2215/2093
    • A heat and pressure fuser and a Release Agent Management (RAM) system therefor. A dual function RAM system is provided. The dual function RAM system supplies functional release agent material having a relatively high concentration of functional chains (in the order of 0.05 to 0.4 mol %) to an elastomeric fuser member as well as release agent material having low funtionality or no functionality. The elastomeric fuser member may contain metal oxide particles. The low functionality release agent is relatively non-reactive. Depending on whether the elastomeric member contains the metal oxide particles, the functional chains of the high concentration release agent material which are periodically supplied to the fuser roll surface either attach to the metal particles exposed at the surface of the fuser roll by chemical bonds or to the elastomeric material itself. The non-reactive chains adhere to the functional chains by much weaker physical (such as van der Waals) chains. The periodic application of the high concentration release agent material includes application for a relatively short duration at machine startup as well as periodically thereafter as needed. Application of the release agent is effected using an elongated web impregnated with alternate bands or areas of silicone oil containing high and low functional chains.
    • 一个热压定影器和一个脱模剂管理(RAM)系统。 提供了双功能RAM系统。 双功能RAM系统提供具有相对高浓度的功能链(大约0.05至0.4mol%)的功能性脱模剂材料到弹性体定影器构件以及具有低功能性或无功能性的脱模剂材料。 弹性定影器构件可以包含金属氧化物颗粒。 低功能性脱模剂相对无反应性。 取决于弹性体构件是否含有金属氧化物颗粒,周期性地供给到定影辊表面的高浓度脱模剂材料的功能链通过化学键附着到在定影辊的表面暴露的金属颗粒,或者通过化学键附着到 弹性材料本身。 非反应性链通过较弱的物理(如范德华力)链粘附到功能链上。 高浓度脱模剂材料的周期性应用包括在机器启动时应用相对较短的时间,并且根据需要周期性地应用。 脱模剂的应用使用浸渍有交替的条带或含有高和低功能链的硅油的区域的细长网来实现。
    • 10. 发明授权
    • Process for magnetic image character recognition
    • 磁图像字符识别过程
    • US4517268A
    • 1985-05-14
    • US531520
    • 1983-09-12
    • Robert J. GruberJohn F. KnappSteven B. Bolte
    • Robert J. GruberJohn F. KnappSteven B. Bolte
    • G03G19/00G03G9/08G03G9/083G03G9/087G03G9/113G06K15/14H01F41/16
    • H01F41/16G03G9/08G03G9/083G03G9/0833G03G9/08711
    • Disclosed is an improved, simple, economical process for generating documents, such as personal checks, suitable for magnetic image character recognition, which process comprises generating such documents with conventional xerographic methods in a high speed electronic laser printing device, and wherein there is selected as the developer composition a magnetic toner containing from about 20 percent by weight to about 70 percent by weight of magnetite particles, and from about 30 percent by weight to about 80 percent by weight of toner resin particles of styrene copolymers, such as a styrene butadiene copolymer, a styrene n-butylmethacrylate copolymer, or polyesters, and wherein the carrier particles are comprised of ferrite cores, coated with various polymeric resinous compositions. There can also be included in the developer composition various additives such as collodial silica particles, and charge enhancing additives, and further conductive carbon black or insulating carbon black particles can be incorporated into the carrier polymeric resinous coating.
    • 公开了一种改进的,简单的,经济的用于生成适合于磁图像字符识别的诸如个人检查的文档的过程,该方法包括在高速电子激光打印装置中用常规静电印刷方法生成这样的文档,并且其中选择为 显影剂组合物含有约20重量%至约70重量%的磁铁矿颗粒的磁性调色剂和约30重量%至约80重量%的苯乙烯共聚物如苯乙烯丁二烯共聚物的调色剂树脂颗粒 ,苯乙烯正丁基甲基丙烯酸酯共聚物或聚酯,并且其中载体颗粒由铁氧体磁芯组成,涂覆有各种聚合物树脂组合物。 还可以在显影剂组合物中包括诸如胶体二氧化硅颗粒和电荷增强添加剂的各种添加剂,并且可以在载体聚合物树脂涂料中引入另外的导电炭黑或绝缘炭黑颗粒。