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11.发明授权
公开(公告)号：US4546060A
公开(公告)日：1985-10-08
申请号：US548807
申请日：1983-11-04
摘要： An electrographic, two-component dry developer composition comprising charged toner particles and oppositely charged, magnetic carrier particles, which (a) comprise a magnetic material exhibiting "hard" magnetic properties, as characterized by a coercivity of at least 300 gauss and (b) exhibit an induced magnetic moment of at least 20 EMU/gm when in an applied field of 1000 gauss, is disclosed.The developer is employed in combination with a magnetic applicator comprising a rotatable magnetic core and an outer, nonmagnetizable shell to develop electrostatic images.
摘要翻译： 包含带电荷的调色剂颗粒和带相反电荷的磁性载体颗粒的电子照相双组分干显影剂组合物，其（a）包含表现出“硬”磁性的磁性材料，其特征在于矫顽力为至少300高斯，（b） 在1000高斯的施加场中表现出至少20 EMU / gm的感应磁矩。 显影剂与包括可旋转磁芯和外部不可磁化壳体的磁性施加器组合使用以显影静电图像。
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公开(公告)号：US07033720B2
公开(公告)日：2006-04-25
申请号：US10858960
申请日：2004-06-02
IPC分类号： G03G9/083
CPC分类号： B82Y15/00 , G03G9/083 , G03G9/097 , G03G9/09708 , G03G9/09733 , G03G13/09 , G03G2215/0013
摘要： Development systems and methods for developing using magnetic toner are disclosed. The present invention further discloses developers used in development systems as well as the toner used in developer for magnetic ink character recognition printing. With respect to the development system, a development system is disclosed which includes a supply of dry developer mixture which contains magnetic 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. A method for developing electrostatic image with magnetic toner is further disclosed, for example, involving the above-described development system. Magnetic toner particles having a low magnetic loading such as on the order of 28% by weight or less, based on the weight of the toner are further described wherein these magnetic toners can include a spacing agent on the surface of the magnetic toner particles. A developer is further disclosed which contains the magnetic toner particles of the present invention with hard magnetic carrier particles. Other developer compositions are also described.
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13.发明授权Development systems for magnetic toners and toners having reduced magnetic loadings 有权具有降低磁负载的磁性调色剂和调色剂的开发系统公开(公告)号：US06766136B2
公开(公告)日：2004-07-20
申请号：US10403539
申请日：2003-03-31
IPC分类号： G03G9083
CPC分类号： B82Y15/00 , G03G9/083 , G03G9/097 , G03G9/09708 , G03G9/09733 , G03G13/09 , G03G2215/0013
摘要： Development systems and methods for developing using magnetic toner are disclosed. The present invention further discloses developers used in development systems as well as the toner used in developer for magnetic ink character recognition printing. With respect to the development system, a development system is disclosed which includes a supply of dry developer mixture which contains magnetic 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. A method for developing electrostatic image with magnetic toner is further disclosed, for example, involving the above-described development system. Magnetic toner particles having a low magnetic loading such as on the order of 28% by weight or less, based on the weight of the toner are further described wherein these magnetic toners can include a spacing agent on the surface of the magnetic toner particles. A developer is further disclosed which contains the magnetic toner particles of the present invention with hard magnetic carrier particles. Other developer compositions are also described.
摘要翻译： 公开了使用磁性调色剂显影的显影系统和方法。 本发明还公开了用于显影系统中的显影剂以及用于磁性墨水字符识别印刷的显影剂中的调色剂。 关于显影系统，公开了一种开发系统，其包括供应含有磁性调色剂颗粒和硬磁性载体颗粒的干燥显影剂混合物。 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。 例如涉及上述显影系统的方法进一步公开了一种用磁性调色剂显影静电图像的方法。 进一步描述了基于调色剂的重量，具有低28重量％或更少的磁载荷的磁性调色剂颗粒，其中这些磁性调色剂可以在磁性调色剂颗粒的表面上包括间隔剂。 进一步公开了含有本发明的磁性调色剂颗粒与硬磁性载体颗粒的显影剂。 还描述了其它显影剂组合物。
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公开(公告)号：US5409791A
公开(公告)日：1995-04-25
申请号：US65249
申请日：1993-05-20
CPC分类号： G03G9/107 , G03G13/09 , G03G15/0126
摘要： An electrostatic image on an image member already containing a loose dry first toner image is toned with a second toner, for example, a toner of a second and different color from the first toner image. The toning is accomplished by a developer having a high coercivity permanently magnetized carrier and toner which is moved through a development zone by a rapidly rotating core inside a sleeve on which the developer moves. Pole transitions caused by the rapidly moving core make the high coercivity permanently magnetized carrier move vigorously in a wave motion having alternating crests and troughs. Scavenging of the first toner image is prevented by separating the sleeve from the image member sufficiently that the crests of the developer do not touch the image member during the toning process. An alternating electrical field is applied between the sleeve and the image member to enhance development.
摘要翻译： 已经含有松散干燥的第一调色剂图像的图像构件上的静电图像用第二调色剂调色，例如与第一调色剂图像不同颜色的调色剂。 调色是通过具有高矫顽力永久磁化载体和调色剂的显影剂实现的，该显影剂通过显影剂移动的套筒内的快速旋转的芯移动通过显影区域。 由快速移动的芯引起的极点转变使得高矫顽力永久磁化载体在具有交替的波峰和波谷的波动中剧烈移动。 通过将套筒与图像部件分离得足以防止在调色过程中显影剂的顶部不接触图像部件，来清除第一调色剂图像。 在套筒和图像构件之间施加交替电场以增强显影。
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公开(公告)号：US4517272A
公开(公告)日：1985-05-14
申请号：US522955
申请日：1983-08-12
申请人： Thomas A. Jadwin , Donald S. Rimai
发明人： Thomas A. Jadwin , Donald S. Rimai
CPC分类号： G03G9/08773
摘要： The hollow character defect in electrostatically transferred dry toner images is reduced by an electrostatic dry toner composition comprising a binder polymer and a low surface energy liquid such as a silicone oil.
摘要翻译： 通过包含粘合剂聚合物和低表面能液体如硅油的静电干燥调色剂组合物，可以减少静电转印的干燥调色剂图像中的空心字符缺陷。
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16.发明授权Two-component dry electrostatic developer composition containing onium charge control agent 失效含有鎓电荷控制剂的双组分干静电显影剂组合物
公开(公告)号：US4496643A
公开(公告)日：1985-01-29
申请号：US592996
申请日：1984-03-23
CPC分类号： G03G9/09741 , G03G9/09783 , G03G9/1134
摘要： A two-component, dry electrostatic developer composition containing toner particles and coated-carrier particles is disclosed. The toner contains a binder polymer and a phosphonium, arsonium or stibonium charge-control agent dispersed in the toner binder. The carrier is coated with a fluoropolymer. The resulting developer exhibits reduced toner throw-off and other disclosed advantages.
摘要翻译： 公开了一种含有调色剂颗粒和涂覆载体颗粒的双组分干静电显影剂组合物。 调色剂含有分散在调色剂粘合剂中的粘合剂聚合物和鏻，ium或锑电荷控制剂。 载体涂有含氟聚合物。 所得的显影剂显示出减少的调色剂脱落和其它公开的优点。
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17.发明授权Electrographic developing composition and process using a fusible, crosslinked binder polymer 失效使用易熔交联粘合剂聚合物的电子显影组合物和方法
公开(公告)号：US3938992A
公开(公告)日：1976-02-17
申请号：US498818
申请日：1974-08-19
CPC分类号： G03G9/08793
摘要： The present invention relates to an electrographic developing composition containing finely divided carrier particles and finely divided toner particles having incorporated therein a fusible, crosslinked binder polymer. An improved electrographic developing process using such toner particles is also disclosed.
摘要翻译： 本发明涉及一种含有精细分散的载体颗粒和细碎的调色剂颗粒的电子照相显影组合物，其中掺入了易熔交联的粘合剂聚合物。 还公开了使用这种调色剂颗粒的改进的电子照相显影方法。
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公开(公告)号：US06589703B2
公开(公告)日：2003-07-08
申请号：US09853412
申请日：2001-05-11
IPC分类号： G03G908
CPC分类号： G03G15/0928 , G03G9/09708 , G03G9/09716 , G03G9/09725 , G03G9/09733 , G03G9/107
摘要： Disclosed are methods and apparatus for electrographic development which utilize a rotating magnetic core, a toner shell disposed around the rotating magnetic core, and developer compositions disposed on the toner shell which include a hard magnetic material, such as a strontium ferrite. The shell in embodiments has an outer surface with a surface roughness Ra of less than 32 microinches. The methods and apparatus do not require special manufacturing steps to place surface roughness or irregularities on the shell, and, thus, can provide the same or better image quality with relatively less complex manufacturing steps and at reduced cost.
摘要翻译： 公开了利用旋转磁芯，设置在旋转磁芯周围的调色剂壳和设置在调色剂壳上的显影剂组合物的电摄影显影方法和装置，其包括诸如锶铁氧体之类的硬磁材料。 实施例中的外壳具有表面粗糙度Ra小于32微英寸的外表面。 所述方法和装置不需要特殊的制造步骤来将表面粗糙度或不规则性放置在壳体上，并且因此可以以相对较不复杂的制造步骤和降低的成本提供相同或更好的图像质量。
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公开(公告)号：US5489975A
公开(公告)日：1996-02-06
申请号：US403170
申请日：1995-03-13
CPC分类号： G03G9/107 , G03G13/09 , G03G15/0126
摘要： An electrostatic image on an image member already containing a loose dry first toner image is toned with a second toner, for example, a toner of a second and different color from the first toner image. The toning is accomplished by a developer having a high coercivity permanently magnetized carrier and toner which is moved through a development zone by a rapidly rotating core inside a sleeve on which the developer moves. Pole transitions caused by the rapidly moving core make the high coercivity permanently magnetized carrier move vigorously in a wave motion having alternating crests and troughs. Scavenging of the first toner image is prevented by separating the sleeve from the image member sufficiently that the crests of the developer do not touch the image member during the toning process. An alternating electrical field is applied between the sleeve and the image member to enhance development.
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公开(公告)号：US5480757A
公开(公告)日：1996-01-02
申请号：US253446
申请日：1994-06-08
CPC分类号： G03G9/09741 , G03G9/0975 , G03G9/09758
摘要： A two component electrophotographic developer and development method. The developer includes carrier particles and toner comprising: polymeric binder; a first agent selected from the group consisting of compounds having the general structure: ##STR1## wherein n is from about 7 to about 21; R.sup.1 and R.sup.2 are each independently H or alkyl having from 1 to about 3 carbons; T represents an unshared electron pair or a proton and a counterion; and R.sup.3 is substituted or unsubstituted alkyl, alkylamide, aryl, or heteroaryl; and a second agent comprising quaternary ammonium salt.
摘要翻译： 双组分电子照相显影剂和显影方法。 显影剂包括载体颗粒和调色剂，其包含：聚合物粘合剂; 选自具有一般结构的化合物的第一种试剂：其中n为约7至约21; R1和R2各自独立地为H或具有1至约3个碳原子的烷基; T表示非共享电子对或质子和抗衡离子; 和R 3是取代或未取代的烷基，烷基酰胺，芳基或杂芳基; 和包含季铵盐的第二试剂。
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