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    • 1. 发明授权
    • Electrophotographic image formation comprising an arylamine in a charge
transport layer and an encapsulated toner
    • 包含电荷输送层中的芳基胺和包封的调色剂的电子照相图像形成
    • US5336582A
    • 1994-08-09
    • US928316
    • 1992-08-12
    • Ichiro TakegawaTsutomu KuboKeiko AriieTomoo Kobayashi
    • Ichiro TakegawaTsutomu KuboKeiko AriieTomoo Kobayashi
    • G03G9/08G03G5/07G03G9/093G03G15/08
    • G03G5/076G03G9/09378G03G9/09328
    • An electrophotographic method for image formation comprising forming an electrostatic latent image on an electrophotographic photoreceptor comprising a conductive substrate having formed thereon a photosensitive layer containing a high polymeric arylamine compound represented by formula (I): ##STR1## wherein n represents an integer of from 5 to 5000; m represents 0 or 1; y represents 1, 2, or 3; Ar represents ##STR2## wherein R represents a methyl group, an ethyl group, a propyl group, or a butyl group; Ar' represents ##STR3## wherein R is as defined above; X represents an alkylene or isoalkylene group having from 2 to 10 carbon atoms; and Z represents ##STR4## or --Ar--(W).sub.k --Ar--, wherein Ar is as defined above; W represents --CH.sub.2 --, --C(CH.sub.3).sub.2 --, --O--, --S--, ##STR5## (wherein s represents 0, 1, or 2; and R and Ar' are as defined above); and k represents 0 or 1, developing the latent image with a microcapsule toner containing in its core at least a polymer dispersed in a solvent, and transferring the toner image to paper. Copies of satisfactory image quality can be obtained in a stable manner for an extended period of time without being accompanied by the phenomenon of copy image disappearance.
    • 一种用于图像形成的电子照相方法,包括在电子照相感光体上形成静电潜像,所述电子照相感光体包括其上形成有由式(I)表示的高聚芳基胺化合物的感光层的导电基材:其中n表示整数 从5到5000; m代表0或1; y表示1,2或3; Ar表示 ,其中R表示甲基,乙基,丙基或丁基; Ar'表示 ,其中R如上所定义; X表示具有2至10个碳原子的亚烷基或异亚烷基; 或者-Ar-(W)k-Ar-,其中Ar如上所定义;并且Z表示 W表示-CH 2 - , - C(CH 3)2 - , - O - , - S - ,其中S表示0,1或2; R和Ar'如上所定义)。 并且k表示0或1,用包含其核心的至少一种分散在溶剂中的聚合物的微胶囊调色剂显影潜像,并将调色剂图像转印到纸上。 可以稳定地获得令人满意的图像质量的副本,而不伴随着图像消失的现象。