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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：US4492746A
公开(公告)日：1985-01-08
申请号：US403855
申请日：1982-07-30
IPC分类号： C08G63/193 , C08G63/199 , C08G63/54 , G03G5/05 , G03G5/07
CPC分类号： C08G63/193 , C08G63/199 , C08G63/54 , G03G5/056 , G03G5/07
摘要： Disclosed is a photosensitive material for electrophotography comprising an organic polymeric photoconductive material and a thermoplastic polyester composed mainly of recurring units represented by the general formula ##STR1## wherein R.sup.1 represents a phenylene, ethylene or vinylene group, R.sup.2 represents a group of the formula ##STR2## R.sup.3 represents a direct bond or a divalent bridging atom or group, and the ring A may have a substituent inert to the polyester-forming reaction, provided that R.sup.1 and R.sup.2 are selected such that one of them contains an aromatic ring and the other does not.
摘要翻译： 公开了用于电子照相的感光材料，其包含有机聚合物光电导材料和主要由通式（IMAGE）表示的重复单元组成的热塑性聚酯，其中R1表示亚苯基，亚乙基或亚乙烯基，R2表示下式的基团：IMAGE R3表示直接键或二价桥连原子或基团，并且环A可具有对形成聚酯的反应惰性的取代基，条件是选择R1和R2使得 其中一个包含一个芳香环，另一个不含。
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公开(公告)号：US4551403A
公开(公告)日：1985-11-05
申请号：US653488
申请日：1984-09-24
IPC分类号： G03G5/00 , C08G63/193 , C08G63/199 , G03G5/04 , G03G5/05
CPC分类号： G03G5/04 , C08G63/193 , C08G63/199 , G03G5/056 , Y10S430/109
摘要： A photosensitive material for electrophotography, which comprises an electroconductive substrate and a photosensitive layer formed on the substrate. The photosensitive layer comprising a charge transfer medium and a charge-generating pigment dispersed in the mediums. The photosensitive layer contains as the matrix resin a thermoplastic polyester consisting essentially of recurring units represented by the following general formula: ##STR1## wherein R.sup.1 stands for a phenylene group or an ethylene group, R.sup.2 stands for a group represented by the formula ##STR2## R.sup.3 stands for a direct bond or a divalent bridging atom or group, and the ring A may have a substituent not participating in the reaction.In another embodiment a photosensitive material for electrophotography includes an electroconductive substrate, a photoconductive organic pigment-containing, charge-generating layer formed on the substrate and a charge transfer layer formed on the charge-generating layer, wherein the charge transfer layer contains as the matrix resin the above-mentioned thermoplastic polyester. These thermoplastic polyesters provide improvements in adhesion to the substrate, surface hardness and abrasion resistance.
摘要翻译： 一种用于电子照相的感光材料，其包括导电基底和形成在基底上的感光层。 感光层包含电荷转移介质和分散在介质中的产生电荷的颜料。 感光层含有作为基质树脂的热塑性聚酯，其基本上由以下通式表示的重复单元组成：其中R1代表亚苯基或亚乙基，R2代表由下式表示的基团：
R3代表直接键或二价桥连原子或基团，环A可以具有不参与反应的取代基。 在另一个实施方案中，用于电子照相术的感光材料包括导电基底，在基底上形成的光电导有机颜料的电荷产生层和形成在电荷产生层上的电荷转移层，其中电荷转移层包含作为基质 树脂上述热塑性聚酯。 这些热塑性聚酯提供对基材的粘附性，表面硬度和耐磨性的改进。 -
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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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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8.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：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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