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公开(公告)号：US4657831A
公开(公告)日：1987-04-14
申请号：US838486
申请日：1986-03-11
摘要： Electrophotographic color proofs of half-tone dot pattern images are made which closely simulate the dot gain of prints made with lithographic plates and liquid inks. In forming the color proof, a thin transparent plastic sheet having on one side an electrophotographic toner dot pattern image is laminated to a reflective support with the toner image side in contact with the support. A thicker transparent plastic sheet is laminated to the other side of the thin sheet. The resulting color proof comprising a toner dot pattern on a reflective support and covered by a thin transparent layer and a thicker transparent layer has an apparent increase in dot size which simulates that of a press print.
摘要翻译： 制作半色调点阵图像的电子照相色彩证明，其密切地模拟用平版印刷版和液体油墨制成的印刷品的网点增益。 在形成着色的情况下，将具有电子照相调色剂点图案图像的一侧的薄透明塑料片层压到具有与支持体接触的调色剂像侧的反射支撑体上。 较厚的透明塑料片层压到薄片的另一侧。 所产生的颜色证明包括在反射支撑上并被薄透明层和较厚透明层覆盖的调色剂点图案，其具有明显增加的点尺寸，其模拟印刷机的图案。
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2.发明授权Low color photoconductive insulating compositions comprising nitrogen-free photoconductor and benzopyrilium sensitizer 失效包含无氮感光体和苯并吡喃增感剂的低色光导电绝缘组合物
公开(公告)号：US4045220A
公开(公告)日：1977-08-30
申请号：US595990
申请日：1975-07-14
CPC分类号： G03G5/0668
摘要： Coloration resistant photoconductive insulating compositions useful in making elements, such as photoconductive electrophotographic papers, are provided. Such compositions comprise (1) an electrically insulating organic binder, (2) a nitrogen-free polyaryl hydrocarbon photoconductor such as those having the formula ##STR1## wherein: N REPRESENTS AN INTEGER HAVING A VALUE OF 0, 1 OR 2,Ar represents an aryl group including substituted aryl such as phenyl, alkylphenyl having 1 to about 10 carbon atoms in the alkyl moiety, alkoxyphenyl having 1 to about 10 carbon atoms in the alkoxy moiety, and the like,Each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 represents a hydrogen atom, an aryl group, an alkyl group or an alkoxy group and, when n is O, R.sup.1 and R.sup.4 are both aryl and when R.sup.1 and R.sup.4 are both hydrogen, each of R.sup.2 and R.sup.3 represents an aryl group; and (3) a sensitizer that is substantially non-color forming in the composition. Particularly useful such sensitizers include benzopyrylium type compounds.
摘要翻译： 提供了用于制造元件的耐光导光性绝缘组合物，例如光电子照相纸。 这样的组合物包括（1）电绝缘的有机粘合剂，（2）无氮聚芳基烃光导体，例如具有式“IMAGE”的那些，其中：
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3.发明授权Non-impact printhead using a mask with a dye sensitive to and adjusted by light in a first spectrum to balance the transmission of light in a second spectrum emitted by an LED array 失效非冲击打印头使用具有对第一光谱中的光敏感并由其调节的染料的掩模，以平衡由LED阵列发射的第二光谱中的光的透射
公开(公告)号：US4980701A
公开(公告)日：1990-12-25
申请号：US375154
申请日：1989-07-03
申请人： Lawrence E. Contois , Yee S. Ng , Eric K. Zeise
发明人： Lawrence E. Contois , Yee S. Ng , Eric K. Zeise
IPC分类号： G06K15/12
CPC分类号： G06K15/1247
摘要： An LED printhead includes an optical mask overlying the LED's to balance light outputs therefrom. The transmission density of the mask is adjusted for each LED in accordance with its respective light output to adjust same so that the light outputs from all LED's are the same. The mask comprises a UV fadeable dye whose transmission density is adjusted with a UV laser or other light source while monitoring the light output from the respective LED. The transmission density of the mask may be adjusted by a UV light source provided on the printhead during periods of nonuse of the printhead or the printhead may be removed from the recording apparatus for adjustment.
摘要翻译： LED打印头包括覆盖LED的光学掩模以平衡来自其的光输出。 根据其各自的光输出，针对每个LED调整掩模的透射密度以进行调整，使得来自所有LED的光输出相同。 掩模包括UV可淡化的染料，其透射密度用UV激光或其他光源调节，同时监测来自相应LED的光输出。 可以通过在打印头不使用期间设置在打印头上的UV光源来调节掩模的透射密度，或者可以将打印头从记录装置移除以进行调节。
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4.发明授权Pyrylium- and thiopyrylium-sensitized low-persistence photoconductive compositions and elements 失效吡喃鎓和硫代吡喃敏化的低持久性光电导组合物和元素
公开(公告)号：US4424268A
公开(公告)日：1984-01-03
申请号：US443787
申请日：1982-11-22
CPC分类号： G03G5/0661 , G03G5/0637
摘要： Protonic acid-free photoconductive compositions and elements comprising a photoconductor and, as a sensitizer, a 4-tertiaryaminobenzo�b!pyrylium salt or a 4-tertiaryaminobenzo�b!thiopyrylium salt. The resulting compositions and elements exhibit low persistent conductivity.
摘要翻译： 不含质子酸的光电导组合物和包含光电导体和作为敏化剂的4-叔氨基苯并[b]吡喃鎓盐或4-叔氨基苯并[b]硫代吡喃鎓盐的元件。 所得组合物和元素表现出低的持久导电性。
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5.发明授权High resolution heterogeneous photoconductive compositions and method of preparing 失效高分辨率异质光导组合物及其制备方法
公开(公告)号：US4350751A
公开(公告)日：1982-09-21
申请号：US280199
申请日：1981-07-06
申请人： Lawrence E. Contois
发明人： Lawrence E. Contois
CPC分类号： G03G5/07 , C08L67/03 , G03G5/0539 , G03G5/0546 , G03G5/056 , G03G5/0564 , G03G5/0582
摘要： A plurality of aggregate photoconductive particles having a predominant particle size of less than about 1.0 micron are disclosed. Such particles are useful in heterogeneous photoconductive compositions, electrophotographic elements and electrophotographic imaging processes.
摘要翻译： 公开了具有小于约1.0微米的主要粒度的多个聚集的光电导颗粒。 这种颗粒可用于非均相光电导组合物，电照相元件和电子照相成像方法。
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公开(公告)号：US4018607A
公开(公告)日：1977-04-19
申请号：US466659
申请日：1974-05-03
申请人： Lawrence E. Contois
发明人： Lawrence E. Contois
CPC分类号： G03G5/0679 , G03G5/0677
摘要： A specific class of crystalline organic pigments having the formula ##STR1## WHEREIN N IS 1 OR 2; X consists of the atoms necessary to complete a naphthalene, anthracene, or ##STR2## R.sup.1, R.sup.2, and R.sup.3 are independently selected from the group consisting of hydrogen, halogen, alkoxy, NO.sub.2, alkyl, SO.sub.3 H or alkali metal salts thereof, and COOH or alkali metal salts thereof; and wherein R.sup.2 and R.sup.3 can comprise the atoms necessary to complete a phenyl, naphthyl or anthryl ring; and R is selected from the group consisting of ##STR3## or COOM wherein M is alkyl or an alkali or alkaline earth metal is useful as sensitizers for photoconductive compositions in electrophotographic processes.
摘要翻译： 具有下式的特定类型的结晶有机颜料：其中N为1或2; X由完成萘，蒽或必需的原子组成，R 1，R 2和R 3独立地选自氢，卤素，烷氧基，NO 2，烷基，SO 3 H或其碱金属盐和COOH 或其碱金属盐; 并且其中R2和R3可以包含完成苯基，萘基或蒽基所必需的原子; 并且R选自由下列组成的组：其中M是烷基或碱金属或碱土金属可用作电摄影过程中光电导组合物的敏化剂。
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7.发明授权Pyrylium-sensitized leuco base photoconductive compositions and elements containing naphthalene bis-dicarboximide compounds 失效吡喃鎓敏感无色基光导组合物和含有双二碳酰亚胺化合物的元素
公开(公告)号：US4468444A
公开(公告)日：1984-08-28
申请号：US468830
申请日：1983-04-21
申请人： Lawrence E. Contois
发明人： Lawrence E. Contois
IPC分类号： C07D471/06 , G03G5/06
CPC分类号： C07D471/06 , G03G5/0637 , G03G5/0651
摘要： Photoconductive compositions and elements comprising arylalkane photoconductors and pyrylium sensitizers are stabilized against adverse leuco base color shifts into the ultraviolet to blue spectral region by the incorporation of certain 1,4,5,8-naphthalene bis-dicarboximide compounds. The compositions and elements are particularly suited for electrophotographic image formation and thereafter for contact printing of the image onto sensitive material by ultraviolet or blue transmission through the composition or element.
摘要翻译： 通过掺入某些1,4,5,8-萘二碳酰亚胺化合物，导电组合物和包含芳烷基光导体和吡喃鎓增感剂的元件通过掺入某些1,4,5,8-萘二碳酰亚胺化合物而被稳定以防止紫外至蓝光谱区域的不利的无色基色变。 组合物和元件特别适用于电子照相图像形成，然后通过紫外线或蓝色透射通过组合物或元件将图像接触印刷到感光材料上。
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公开(公告)号：US3938994A
公开(公告)日：1976-02-17
申请号：US480331
申请日：1974-06-18
IPC分类号： C07D309/34 , C07D409/06 , G03G5/06
CPC分类号： C07D409/06 , C07D309/34 , G03G5/0661 , G03G5/067
摘要： This invention relates to organic compounds useful as sensitizers for organic photoconductive compositions having one of the following formulas: ##SPC1## ##SPC2##Wherein:R.sup.1 represents a hydrogen atom, an alkyl radical having 1 to about 15 carbon atoms, a substituted alkyl radical wherein the alkyl moiety contains from 1 to about 15 carbon atoms and wherein the substituents are phenyl radicals or alkoxy radicals containing 1 to about 4 carbon atoms, a phenyl radical, and a substituted phenyl radical having as substituents alkyl radicals having 1 to about 15 carbon atoms or alkoxy radicals having 1 to about 4 carbon atoms;R.sup.2 represents R.sup.1 and a radical having the following formula: ##EQU1## X represents a hetero atom selected from the group consisting of an oxygen and a sulfur atom; andZ.sup.- is an anionic function.
摘要翻译： 本发明涉及可用作有机光导组合物敏化剂的有机化合物，其具有下式之一：其中：
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9.发明授权
公开(公告)号：US5240800A
公开(公告)日：1993-08-31
申请号：US737114
申请日：1991-07-29
申请人： Lawrence E. Contois , Dennis R. Kamp , William Mey
发明人： Lawrence E. Contois , Dennis R. Kamp , William Mey
摘要： A photoelectrographic element for electrostatic imaging, containing a conductive layer and a photosensitive layer, is produced using photosensitive layer materials which form a barrier to charge injection where exposed to near-infrared radiation. As a result, exposed areas can be charged, while unexposed portions cannot. The photosensitive layer contains an organic photoconductor, a near-infrared radiation sensitizer, and, optionally, an organic binder. A method of forming images with this phctoelectrographic element is also disclosed.
摘要翻译： 使用感光层材料制成含有导电层和感光层的用于静电成像的光电元件，该材料在暴露于近红外辐射下形成电荷注入的屏障。 结果，曝光区域可以被充电，而未曝光部分则不能充电。 感光层包含有机光电导体，近红外线辐射敏化剂和任选的有机粘合剂。 还公开了用该phcto电子元件形成图像的方法。
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公开(公告)号：US4301226A
公开(公告)日：1981-11-17
申请号：US94524
申请日：1979-11-15
IPC分类号： G03G5/06
CPC分类号： G03G5/0614
摘要： Photoconductive layers containing a crystallization inhibiting mixture of at least two different organic photoconductors selected from the class of photoconductors represented by the following formula ##STR1## wherein R is selected from the group consisting of alkyl, aralkyl, and substituted and unsubstituted aryl;X and X' which may be the same or different are selected from the group consisting of hydrogen, alkyl, alkoxy, hydroxyl, NO.sub.2 and halogen;Y and Y' which may be the same or different are selected from the group consisting of hydrogen, alkyl, alkoxy, hydroxyl, halogen and NO.sub.2 ;A and B, when taken alone may be the same or different, are selected from the group consisting of hydrogen, alkoxy, hydroxyl, halogen, substituted or unsubstituted aryl, alkyl, cycloalkyl group having four to ten carbon atoms and cycloalkenyl group having four to eight carbon atoms; orA and B, when taken together, represents sufficient atoms to form together with the carbon to which they are attached a substituted or unsubstituted carbocyclic ring having from 4 to 10 carbon atoms, are disclosed.
摘要翻译： 含有至少两种不同有机光电导体的结晶抑制混合物的光电导层，其选自下式（I）所示的光导体类别，其中R选自烷基，芳烷基和取代和未取代的芳基; X和X'可以相同或不同，选自氢，烷基，烷氧基，羟基，NO 2和卤素; Y和Y可以相同或不同，选自氢，烷基，烷氧基，羟基，卤素和NO 2; 当单独使用时，A和B可以相同或不同，选自氢，烷氧基，羟基，卤素，取代或未取代的芳基，烷基，具有4-10个碳原子的环烷基和具有四至四个的环烯基 八个碳原子; 或A和B一起表示足够的原子与与它们连接的碳的取代或未取代的碳原子数为4〜10的碳原子一起形成的原子。
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