发明名称 DEVELOPING APPARATUS, PROCESS CARTRIDGE AND IMAGE FORMING APPARATUS
摘要 PROBLEM TO BE SOLVED: To arrange plural developing sleeves close to each other and to accurately position the plural developing sleeves to a photoreceptor, using a simple constitution. SOLUTION: This developing apparatus is equipped with the 1st developing sleeve 23 for carrying and feeding developer, in order to develop a latent image formed on the photoreceptor 1, a butting roller 29 provided at one end side in the longitudinal direction of the photoreceptor 1 and regulating a gap between the photoreceptor 1 and the sleeve 23, a 2nd developing sleeve 24 carrying and feeding the developer, in order to develop the same latent image formed on the photoreceptor 1, and a butting roller 30 provided at one end side in the longitudinal direction of the photoreceptor and regulating a gap between the photoreceptor 1 and the sleeve 24; and the rollers 29 and 30 are provided, so as not to be mutually superposed in the longitudinal direction.
申请公布号 JP2002062731(A) 申请公布日期 2002.02.28
申请号 JP20010166189 申请日期 2001.06.01
申请人 CANON INC 发明人 SHIRAI MASASHIGE
分类号 G03G21/18;G03G15/08 主分类号 G03G21/18
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