发明名称 ELECTROPHOTOGRAPHIC DRY TYPE DEVELOPING DEVICE
摘要 PURPOSE:To eliminate unevenness of image and soiling, by forming a coating layer of dielectric resin at least in the part contacting with the developer of the charge coat member forming the developer coat layer on the circumference of developing roll. CONSTITUTION:When developing by using a dry type one component developer, a toner layer 1a is uniformly held on the circumference of a developing roll 3, and is triboelectrically charged in the reverse polarity of the electrostatic latent image on an electrostatic latent image carrier 4 to obtain a visible image. Of a charge coat member 2 for uniformly forming the toner layer 1a and charging in the reverse polarity of the electrostatic latent image, at least the part contacting with the toner is constituted, for instance, by forming a coating layer 9 of dielectric resin on a core substance 8 which is relatively easy to process, so that a clear image free from unevenness of development and soiling may be obtained.
申请公布号 JPS55137551(A) 申请公布日期 1980.10.27
申请号 JP19790044891 申请日期 1979.04.14
申请人 COPYER CO 发明人 UMEHARA MASASHIGE;YAMAMOTO AKIRA;KITAHARA MAKOTO
分类号 G03G15/08;G03G15/09 主分类号 G03G15/08
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