公开(公告)号：US06184914B2

公开(公告)日：2001-02-06

申请号：US09370356

申请日：1999-08-09

申请人： Tim M. Hoberock ,  William E. Britton ,  Gary L. Holland

发明人： Tim M. Hoberock ,  William E. Britton ,  Gary L. Holland

IPC分类号： B41J247

CPC分类号： H04N1/29 ,  B41J2/435 ,  G03G13/22 ,  G03G15/0126

摘要： An electrophotographic imaging system produces multiple gray level images and includes a photoconductor and a charger for repetitively charging the photoconductor to a first charge potential. A laser system selectively discharges the photoconductor in accord with applied image data. A first toner is utilized and exhibits a first charge state that is attracted by a first discharge voltage of the photoconductor. A second toner is also used that exhibits a second charge state of the same sense as the first toner, but is attracted by a second discharge voltage of larger magnitude than the first discharge voltage. A processor modulates the laser system to cause the photoconductor to be discharged to the first discharge voltage when only the first toner is to be attracted to the photoconductor. The processor further modulates the laser scanner to cause the photoconductor surface to be discharged to the second discharge voltage. This action enables areas discharged to the first discharge voltage to be toned by the first toner, and areas discharged to the second discharge voltage to be toned by both the first and second toners so as to create a more dense toner surface.

摘要翻译： 电子照相成像系统产生多个灰度图像，并且包括光电导体和用于将光电导体重复充电到第一充电电位的充电器。 激光系统根据应用的图像数据选择性地放电感光体。 使用第一调色剂并且显示被感光体的第一放电电压吸引的第一电荷状态。 还使用表现出与第一调色剂相同感觉的第二电荷状态但被第一放电电压大的第二放电电压吸引的第二调色剂。 当仅将第一调色剂吸引到感光体时，处理器调制激光系统以使光电导体放电到第一放电电压。 处理器进一步调制激光扫描器以使感光体表面放电到第二放电电压。 该动作使得通过第一调色剂调节放电到第一放电电压的区域，并且排出到第二放电电压的区域由第一和第二调色剂调色，以便产生更致密的调色剂表面。

公开(公告)号：US5024700A

公开(公告)日：1991-06-18

申请号：US403687

申请日：1989-09-05

申请人： William E. Britton, Jr.

发明人： William E. Britton, Jr.

IPC分类号： C09D11/02 ,  C09D11/10

CPC分类号： C09D11/108 ,  C09D11/03

摘要： A method of imparting thixotropic properties to printing ink compositions comprising blending at least one ethanolamine compound into a printing ink composition at sufficient concentration to obtain a final printing ink material exhibiting desired thixotropic properties. The ethanolamine compounds usable in connection with the present invention include monoethanolamine, diethanolamine and triethanolamine. In at least one naphthenic ink oil based printing ink composition, desirable thixotropic properties are exhibited when TEA is added at levels varying between 0.5 and 2.0 percent by weight. The optimal amount of TEA in such naphthenic oil based ink composition is approximately 0.7 percent by weight. Ink formulations in accordance with the present invention may be based on organic ink vehicles including naphthenic ink oils and/or hydrocarbon resins. In at least some of the ink compositions of the present invention, the presence of the ethanolamine thixotropic agent also improves the rub resistance of the final ink.

摘要翻译： 赋予印刷油墨组合物的触变性能的方法包括将至少一种乙醇胺化合物以足够的浓度共混到印刷油墨组合物中以获得显示出所需触变性能的最终印刷油墨材料。 可用于本发明的乙醇胺化合物包括单乙醇胺，二乙醇胺和三乙醇胺。 在至少一种基于环烷油墨油的印刷油墨组合物中，当以0.5-2.0重量％变化的水平加入TEA时，显示出所需的触变特性。 这种环烷油基油墨组合物中TEA的最佳量为约0.7重量％。 根据本发明的油墨配方可以基于有机油墨载体，包括环烷油墨油和/或烃树脂。 在本发明的至少一些油墨组合物中，乙醇胺触变剂的存在也提高了最终油墨的耐摩擦性。