发明名称 IMAGE FORMING MEMBER
摘要 PURPOSE:To obtain a high-resolution image with accurate density gradation without any edge effects by providing a layer with specific resistance than a specified value in an image forming member. CONSTITUTION:An electroconductive cylindrical member 2 supporting elecetroconductive powder 1, an image forming member 5 sandwiched between the elecetroconductive powder 1 and a plurally divided electrode head and also a means to transport the image forming member 5 such as rollers 6, 6' are provided. The image forming member 5 is formed by making film 21 with organic polymer material such as polyester or polystylene with a specific resistance of 10<10>OMEGAcm or more and applying thermoplastic elastomer 22 such as ethylene vinylacrylate on the side where the electroconductive powder 1 adheres. Preferably, an electric charge-implanted layer 23 containing compatible materials with a specific resistance of 10<10>OMEGAcm or less, e.g. quaternary ammonium salt, inorganic salts or charge-transferred complex dissolved in a polymer material on the electrode head side, is formed on film 21.
申请公布号 JPH01286861(A) 申请公布日期 1989.11.17
申请号 JP19880117421 申请日期 1988.05.13
申请人 SEIKO EPSON CORP 发明人 KURIHARA HAJIME;SHIMURA EIJI
分类号 B41J2/385;B41J2/41;G03G5/02;G03G15/05 主分类号 B41J2/385
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