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公开(公告)号：US5061583A
公开(公告)日：1991-10-29
申请号：US434897
申请日：1990-01-19
CPC分类号： G03G9/12 , G03G13/013 , G03G13/10
摘要： There is disclosed here a class of liquid toner dispersions for developing electrophotographic images which give very high contrast half-tone dots with low contrast scanning light beams such as gaussian laser beams. The advantage of these toners is enhanced by the use of high electric field electrophoretic development conditions with high replenishment rate under which conditions rapid development to high image densities is obtained. This class of toners has toner particles of high mobility, low particle concentration in the dispersion, and a low fraction of its conductivity in the liquid milieu.
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公开(公告)号：US5302482A
公开(公告)日：1994-04-12
申请号：US652572
申请日：1991-02-08
CPC分类号： G03G9/133 , G03G9/1355
摘要： A liquid electrophotographic toner having a coordinated association of steric stabilizer and charge directing moiety displays improved characteristics when the charge directing moiety has a monovalent alkali metal or ammonium cation bonded thereto.
摘要翻译： 当电荷引导部分具有与其结合的一价碱金属或铵阳离子时，具有空间稳定剂和电荷引导部分的配位缔合的液体电子照相调色剂显示出改进的特性。
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公开(公告)号：US4925766A
公开(公告)日：1990-05-15
申请号：US279438
申请日：1988-12-02
摘要： Liquid toners for developing electrophotographic images contain dispersed toner particles which are based on a polymer with multi-characteristics. These particles comprise a thermoplastic resinous core with a T.sub.g below room temperature, which is chemically anchored to an amphipathic copolymer steric stabilizer containing covalently attached groups of a coordinating compound which in turn are capable of forming covalent links with organo-metallic charge directing compounds. The toner particles so formed have advantageous properties of high charge/mass, and good charge and dispersion stability.
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公开(公告)号：US5066559A
公开(公告)日：1991-11-19
申请号：US468153
申请日：1990-01-22
摘要： Liquid toners for developing electrophotographic images contain dispersed toner particles which are based on a polymer with multiple characteristics. These particles comprise a thermoplastic resinous core with a T.sub.g below room temperature which is chemically anchored to an amphipathic copolymer steric stabilizer containing covalently attached groups of organic acid containing moieties having pKa's less than 4.5 which in turn are chemically bonded to metal soap containing compounds derived from organic acids having a pKa greater than 4.5. The toner particles so formed have advantageous properties of high charge/mass, and good charge and dispersion stability.
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公开(公告)号：US4822643A
公开(公告)日：1989-04-18
申请号：US68648
申请日：1987-06-30
CPC分类号： B41M5/395 , Y10S428/913 , Y10S428/914 , Y10T428/24901 , Y10T428/24975 , Y10T428/254 , Y10T428/266
摘要： A thermal imaging transfer process and donor sheet are described. The donor sheet comprises a layer of particulate colorant/binder on a substrate. Essentially individual particles are transferred during imaging to provide a high resolution image.
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公开(公告)号：US4988602A
公开(公告)日：1991-01-29
申请号：US510721
申请日：1990-04-18
CPC分类号： G03G9/133 , Y10S430/105 , Y10S430/146
摘要： Liquid toners for developing electrophotographic images contain dispersed toner particles which are based on a polymer with multi-characteristics. These particles comprise a thermoplastic resinous core with a Tg below room temperature, which is chemically anchored to an amphipathic copolymer steric stabilizer containing covalently attached groups of a coordinating compound which in turn are capable of forming covalent links with organo-metallic charge directing compounds and a thermoplastic ester resin that functions as a charge enhancing component for the toner. The toner particles so formed have advantageous properties of high charge/mass, and good charge and dispersion stability.
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公开(公告)号：US4978598A
公开(公告)日：1990-12-18
申请号：US490344
申请日：1990-03-08
IPC分类号： G03G9/13
摘要： Liquid toners for developing electrophotographic images contain dispersed toner particles which are based on a polymer with multi-characteristics. These particles comprise a thermoplastic resinous core with a T.sub.g below room temperature, which is chemically anchored to an amphipathic copolymer steric stabilizer containing covalently attached groups of a coordinating compound which in turn are capable of forming covalent links with organo-metallic charge directing compounds. The toner particles so formed have advantageous properties of high charge/mass, and good charge and dispersion stability.
摘要翻译： 用于显影电子照相图像的液体调色剂含有基于具有多特性的聚合物的分散的调色剂颗粒。 这些颗粒包括Tg低于室温的热塑性树脂芯，其化学锚定到包含共价连接的配位化合物基团的两亲共聚物空间稳定剂，所述配位化合物又可以与有机金属电荷引导化合物形成共价连接。 如此形成的调色剂颗粒具有高电荷/质量的优异性能，以及良好的电荷和分散稳定性。
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公开(公告)号：US6001530A
公开(公告)日：1999-12-14
申请号：US145725
申请日：1998-09-02
IPC分类号： B41M5/392 , B41M5/382 , B41M5/385 , B41M5/39 , B41M5/395 , B41M5/40 , B41M5/46 , G03F7/34 , G03C1/73
CPC分类号： B41M5/385 , B41M5/38207 , B41M5/465 , B41M5/3858 , B41M5/392 , B41M5/395 , Y10S430/145 , Y10S430/165
摘要： A black donor for use in a laser addressable thermal transfer system, wherein the black donor comprises a substrate having coated thereon at least one black color layer comprising a binder and colorants. The colorants include a non-infrared absorbing black dye or pigment and about 10% to about 50% of a carbon black pigment, based on the total weight of the colorants in the black color layer.
摘要翻译： 用于激光寻址热转印系统的黑色供体，其中黑色供体包括其上涂覆有至少一种包含粘合剂和着色剂的黑色层的基材。 基于黑色层中着色剂的总重量，着色剂包括非红外吸收黑色染料或颜料以及约10％至约50％的炭黑颜料。
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公开(公告)号：US5262825A
公开(公告)日：1993-11-16
申请号：US808016
申请日：1991-12-13
CPC分类号： G03G15/5041 , G03G15/01 , G03G15/0121 , G03G2215/00042
摘要： A method for operating an electrophotographic proofing system for generating color proofs from image information during multiple imaging cycle proofing runs. Charge model information, development model information and toner replenishment model information are stored for each component color. Actual photoconductor charge characteristics are measured during the imaging cycles of the proofing runs. Actual toner characteristics from component color test patches developed during the imaging cycles are also measured. The photoconductor is charged during the imaging cycles as a function of the charge characteristics measured during a preceding imaging cycle for the same component color, and a as function of the charge model information for the color. The photoconductor is toned during imaging cycles as a function of toner characteristics measured from test patches during a preceding imaging cycle for the same component color and as a function of the development model information for the color. Working toner is replenished after the imaging cycles as a function of the development parameters used to tone the photoconductor during the imaging cycles for the same component color and as a function of the replenishment model information for the color. Charge model information and the development model information for each component color are updated as a function of measured values after the imaging cycles.
摘要翻译： 一种用于在多个成像循环打样运行期间操作用于从图像信息生成彩色证明的电子照相打样系统的方法。 针对每个组件颜色存储费用模型信息，开发模型信息和墨粉补充模型信息。 在打样运行的成像周期内测量实际感光体电荷特性。 还测量了在成像周期期间产生的组分颜色测试贴片的实际调色剂特性。 在成像周期期间，光电导体作为在相同分量颜色的先前成像周期期间测量的电荷特性的函数以及作为颜色的电荷模型信息的函数而被充电。 在成像周期期间，光电导体作为调色剂特性的函数调整，作为在相同成分颜色的前一成像周期期间的测试贴片和作为颜色的显影模型信息的函数的调色剂特性的函数。 在成像周期之后补充工作碳粉作为用于在成像循环期间对于相同组分颜色对光电导体进行调色的显影参数以及作为颜色的补充模型信息的函数的函数。 作为成像周期之后的测量值的函数，每个分量颜色的计费模型信息和开发模型信息被更新。
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公开(公告)号：US4728983A
公开(公告)日：1988-03-01
申请号：US38507
申请日：1987-04-15
申请人： Gregory L. Zwadlo , Kevin M. Kidnie
发明人： Gregory L. Zwadlo , Kevin M. Kidnie
CPC分类号： H04N1/508 , G03G15/0152 , G03G15/0163
摘要： This application discloses a method of making high quality color prints by electrophotography. The prints are particularly suited to color proofing. A single photoconductive drum is used together with means to electrostatically charge, laser-scan expose, and toner develop during one rotation. In successive rotations different colored images corresponding to color separation images are assembled in register on the drum. This assembled color image is transferred to a receptor sheet in a final rotation of the drum.
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