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公开(公告)号：US4524117A
公开(公告)日：1985-06-18
申请号：US621090
申请日：1984-06-15
申请人： Kouji Maekawa , Mamoru Kato , Syoji Nakagama , Yumiko Sano
发明人： Kouji Maekawa , Mamoru Kato , Syoji Nakagama , Yumiko Sano
CPC分类号： G03G13/01
摘要： An electrophotographic method for the formation of two-colored images comprising: (1) uniformly charging the surface of a photoreceptor having a conductive substance and a photoconductive layer formed on the conductive substance, said photoconductive layer being sensitive to a first color, (2) exposing a two-colored original, to form on said photoconductive layer an electrostatic latent image, which corresponds to a second color region in the original, with the same polarity as the electric charges on the surface of said photoconductive layer, (3) subjecting the surface of said photoreceptor to a reversal development treatment by the use of a photoconductive color toner charged with the same polarity as the electric charges constituting said electrostatic latent image, to develop the non-charged region with the photoconductive color toner, (4) subjecting said electrostatic latent image to a normal development treatment by the use of an insulative toner having a color different from the color of said photoconductive color toner, and (5) charging the color toners on said photoconductive layer with a different polarity from the charging polarity in process (1) and simultaneously exposing said original through a filter shielding against said first color, thereby providing a practical method for the formation of a desired two colored distinct image corresponding to the original.
摘要翻译： 一种用于形成双色图像的电子照相方法，包括：（1）对形成在导电物质上的导电物质和光电导层的感光体的表面进行均匀充电，所述光电导层对第一种颜色敏感，（2） 暴露双色原件，在所述光电导层上形成与原始图案中的第二颜色区域相对应的静电潜像，其极性与所述光电导层的表面上的电荷相同，（3）使 所述感光体的表面通过使用与构成所述静电潜像的电荷具有相同极性的感光色调色剂进行反转显影处理，利用光电导色调色剂显影未带电区域，（4）使所述 静电潜像通过使用具有不同颜色的绝缘调色剂进行正常显影处理 所述感光色调色剂的颜色，以及（5）在所述光电导层上以与处理（1）中的充电极性不同的极性对彩色调色剂进行充电，并且同时使所述原稿通过过滤屏蔽而暴露于所述第一颜色，从而提供实用 用于形成对应于原始的期望的两个彩色不同图像的方法。
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公开(公告)号：US5132199A
公开(公告)日：1992-07-21
申请号：US558239
申请日：1990-07-26
申请人： Kazuhito Takaoka , Uehara Masatoshi , Yumiko Sano
发明人： Kazuhito Takaoka , Uehara Masatoshi , Yumiko Sano
CPC分类号： G03G15/1635 , G03G15/344
摘要： An image-forming method including the steps of forming a thin layer of a photosensitive toner charged to have a given polarity on a conductive drum, exposing the thin layer to light according to image information, and transferring a part of the photosensitive toner onto a transfer material. The transferring step includes contacting the transfer material with the thin layer after the exposing step as applying a pressure to the transfer material, and irradiating a corona ion from a back side of the transfer material to the thin layer by using a corona charger. Thus, the transfer material is maintained in pressure contact with the thin layer of the toner during the transferring step, thereby improving a transfer efficiency of the toner to the transfer material to obtain a satisfactory image having a high density and no void.
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公开(公告)号：US4701389A
公开(公告)日：1987-10-20
申请号：US883656
申请日：1986-07-09
申请人： Teruyo Morimoto , Yumiko Sano , Eiji Nimura , Yuji Tomii , Tatsuo Maeda
发明人： Teruyo Morimoto , Yumiko Sano , Eiji Nimura , Yuji Tomii , Tatsuo Maeda
CPC分类号： G03G9/0926 , G03G9/0902 , Y10S430/101
摘要： Disclosed is a photoconductive toner comprising as a main component a photoconductive substance dissolved or dispersed in a binder resin medium, wherein when the photoconductive substance is a p-type semiconductor, it is combined with a binder resin having a positive tribochargeability and when the photoconductive substance is an n-type semiconductor, it is combined with a binder resin having a negative tribochargeability.
摘要翻译： 公开了一种感光调色剂，其包含溶解或分散在粘合剂树脂介质中的光电导物质作为主要成分，其中当光电导物质是p型半导体时，其与具有正摩擦充电性的粘合剂树脂组合，并且当光电导物质 是n型半导体，它与具有负摩擦充电性的粘合剂树脂组合。
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公开(公告)号：US5182182A
公开(公告)日：1993-01-26
申请号：US558240
申请日：1990-07-26
申请人： Kazuhito Takaoka , Masatoshi Uehara , Yumiko Sano
发明人： Kazuhito Takaoka , Masatoshi Uehara , Yumiko Sano
CPC分类号： G03G15/344 , G03G15/167
摘要： An image-forming method including the steps of forming a thin layer of a photosensitive toner charged to have a given polarity on a conductive drum, exposing said thin layer to light according to image information, and pressing a roller-type electrode against said toner thin layer through a transfer material after said exposing step to transfer a part of said photosensitive toner onto said transfer material. The method further includes the step of continuing contact between said conductive drum and said transfer material after said transfer material passes said roller-type electrode. Accordingly, a sharp toner image having a high density can be formed without the generation of fog.
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公开(公告)号：US4447513A
公开(公告)日：1984-05-08
申请号：US460758
申请日：1983-01-25
CPC分类号： C09B35/56 , G03G5/0694
摘要： Disclosed is a photosensitive material for electrophotography, which comprises a photosensitive layer containing a tetrakis-azo pigment represented by the following formula: ##STR1## wherein X.sub.1 stands for a lower alkyl group, a lower alkoxy group or a halogen atom, X.sub.2 and X.sub.3 stand for a lower alkyl group, a lower alkoxy group, a halogen atom or a hydrogen atom, and Y stands for a group represented by the following group: ##STR2## in which Z stands for an aromatic ring such as a benzene or naphthalene ring, a substitution product thereof, a hetero ring such as an indole, carbazole or benzofuran ring, or substitution product thereof, Ar.sub.1 stands for an aromatic ring such as a benzene or naphthalene ring, a substitution product thereof, a hetero ring such as a dibenzofuran ring, or a substitution product thereof, Ar.sub.2 and Ar.sub.3 stand for an aromatic ring such as a benzene or naphthalene ring or a substitution product thereof, R.sub.1 stands for a lower alkyl group, a carboxyl group or an ester thereof, and R.sub.2 and R.sub.3 stand for a hydrogen atom, a lower alkyl group, a phenyl group or a substitution product thereof.
摘要翻译： 公开了一种电子照相用感光材料，其包含含有下式表示的四偶氮颜料的感光层：其中X1表示低级烷基，低级烷氧基或卤素原子，X2和X3表示 低级烷氧基，卤素原子或氢原子，Y代表下列基团：其中Z代表芳环，例如 苯或萘环，其取代产物，吲哚，咔唑或苯并呋喃环等杂环，或其取代产物，Ar1表示苯环或萘环等芳香环，取代产物，杂环 例如二苯并呋喃环或其取代产物，Ar2和Ar3表示芳环如苯或萘环或其取代产物，R1表示低级烷基，羧基或 酯，R2和R3代表氢原子，低级烷基，苯基或取代产物。
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6.发明授权Black photoconductive toner having sensitivity to light in the wavelength range of semiconductor lasers 失效在半导体激光器的波长范围内具有对光敏感的黑色光电导调色剂
公开(公告)号：US5273853A
公开(公告)日：1993-12-28
申请号：US536841
申请日：1990-06-12
申请人： Akiyoshi Urano , Yumiko Sano , Seiji Kado , Kazushige Inoue
发明人： Akiyoshi Urano , Yumiko Sano , Seiji Kado , Kazushige Inoue
CPC分类号： G03G9/0906 , G03G9/0926 , Y10S430/10 , Y10S430/101
摘要： A black photoconductive toner having sensitivity to light in the wavelength range of semiconductor lasers, the toner containing a resinous binder, photoconductive material, a sensitizer, and a perylene black pigment or yellow, magenta, or cyan quinone dyes.
摘要翻译： 具有对半导体激光器的波长范围内的光敏感的黑色光电导调色剂，调色剂含有树脂粘合剂，光电导材料，敏化剂和苝黑颜料或黄色，品红色或青色醌染料。
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公开(公告)号：US4433039A
公开(公告)日：1984-02-21
申请号：US420875
申请日：1982-09-21
CPC分类号： G03G5/0687 , C09B35/35 , G03G5/0688
摘要： Disclosed is an electrophotographic photosensitive material comprising a photosensitive layer containing a tris-azo pigment represented by the following formula: ##STR1## wherein the ring A.sub.1 and A.sub.2 may have a halogen atom, an alkyl group or alkoxy group as a substituent at the ortho-position to the azo group, Z stands for a benzene ring, naphthalene ring, indole ring, carbazole ring or benzofuran ring fused to the benzene ring B, and R stands for an unsubstituted or substituted phenyl, naphthyl or heterocyclic group.This photosensitive material has a high sensitivity to rays in a broad wavelength region and is excellent in the resistance in the printing operation.
摘要翻译： 公开了一种电子照相感光材料，其包含含有由下式表示的三偶氮颜料的感光层：其中环A1和A2可以在邻位取代基上具有卤素原子，烷基或烷氧基作为取代基， 位于偶氮基上，Z表示与苯环B稠合的苯环，萘环，吲哚环，咔唑环或苯并呋喃环，R表示未取代或取代的苯基，萘基或杂环基。 该感光材料对宽波长区域的光线具有高灵敏度，并且印刷操作的电阻优异。
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公开(公告)号：US5114817A
公开(公告)日：1992-05-19
申请号：US536374
申请日：1990-06-11
申请人： Akiyoshi Urano , Yumiko Sano
发明人： Akiyoshi Urano , Yumiko Sano
CPC分类号： G03G9/0916 , G03G9/0926
摘要： Disclosed is a photosensitive toner sensitive to light with wavelengths in the range of 600 to 700 nm, which includes zinc oxide, a sensitizing dye, and a resinous binder. The sensitizing dye is a cyanine dye which is represented by the following general formula (I): ##STR1## R is CH.sub.3, C.sub.2 H.sub.5, n-C.sub.4 H.sub.9, n-C.sub.7 H.sub.15, CH.sub.2 COOH, C.sub.2 H.sub.4 COOH or allyl, and X is I, Cl, Br, NO.sub.3 or tolylsulfonyl.
摘要翻译： 公开了对波长在600-700nm范围内的光敏感的感光调色剂，其包括氧化锌，增感染料和树脂粘合剂。 敏化染料是由以下通式（I）表示的花青染料：R 1是CH 3，C 2 H 5，n-C 4 H 9，n-C 7 H 15，CH 2 COOH， C 2 H 4 COOH或烯丙基，X为I，Cl，Br，NO 3或甲苯磺酰基。
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公开(公告)号：US5045879A
公开(公告)日：1991-09-03
申请号：US580038
申请日：1990-09-10
CPC分类号： G03G21/12 , G03G15/344
摘要： Disclosed is an image forming apparatus in which photosensitive toner remaining on an electrically-conductive drum after the formation of an image is collected and then used again for the subsequent process of forming an image. The apparatus comprises a toner storage unit including a toner feed system and a toner collecting system both disposed within a single housing. The toner feed system feeds toner onto an electrically-conductive drum for the formation of an image. The toner collecting system includes a blade for removing the toner remaining on the conductive drum after the formation of the image, and also includes a transporting paddle or a feeder for delivering the removed toner back to the toner feed system, the toner then being supplied again onto the electrically-conductive drum for the subsequent image-forming process.
摘要翻译： 公开了一种图像形成装置，其中收集形成图像之后残留在导电鼓上的感光性调色剂，然后再次用于形成图像的后续处理。 该设备包括一个调色剂存储单元，它包括一个调色剂供给系统和一个均设置在单个外壳内的调色剂收集系统。 调色剂供给系统将调色剂供给到用于形成图像的导电滚筒上。 调色剂收集系统包括用于在图像形成之后去除残留在导电滚筒上的调色剂的刮刀，并且还包括用于将去除的调色剂输送到调色剂供给系统的输送桨或进料器，然后再次供应调色剂 到导电鼓上，用于随后的成像过程。
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公开(公告)号：US4950570A
公开(公告)日：1990-08-21
申请号：US276476
申请日：1988-11-28
申请人： Yumiko Sano , Kazuhito Takaoka , Yosinobu Umetani
发明人： Yumiko Sano , Kazuhito Takaoka , Yosinobu Umetani
CPC分类号： G03G9/107 , G03G15/344 , G03G9/0926 , G03G9/10 , Y10S430/101
摘要： Disclosed in an image-forming process which comprises arranging two electrode surfaces, at least one having a curvature face and at least the other being transparent, to confront each other, forming a layer of a photosensitive toner on one of the electrode surfaces, applying a bias voltage so that the polarity of the toner layer-supporting electrode surface is the same as the polarity of charges on the toner and the polarity of the confronting electrode surface is reverse to the polarity of charges on the toner, irradiating the toner layer with light at a part where both the electrode surfaces are contacted with each other through the photosensitive toner layer, and transferring the unexposed toner toward the confronting electrode surface.
摘要翻译： 公开了一种图像形成方法，其包括布置两个电极表面，至少一个具有曲面并且至少另一个是透明的，以彼此面对，在一个电极表面上形成感光调色剂层， 使得调色剂层支撑电极表面的极性与调色剂上的电荷的极性相同，并且相对电极表面的极性与调色剂上的电荷的极性相反，用光照射调色剂层 在两个电极表面通过感光调色剂层彼此接触的部分，并且将未曝光的调色剂转移到面对的电极表面。
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