发明名称 DEVELOPING DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a developing device which forms a high-quality image using a first developer carrier and a second developer carrier and which can prevent the generation of image failure, due to the disturbance, by the developer on the second developer carrier, of the development image on an image carrier developed by the first developer carrier. SOLUTION: In the developing device 1, having the first developer carrier 8 for carrying the magnetic developer to a first developing part 12 and the second developer carrier 9 for carrying the magnetic developer to a second developing part 13, in which the first developer carrier 8 and the second developer carrier 9 serially supply the magnetic developer for an electrostatic image on the image carrier, the peak value of the normal line direction component of the magnetic force formed near the second developing part 13 is larger than the peak value of the normal line direction component of the magnetic force formed near the first developing part 12. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004177949(A) 申请公布日期 2004.06.24
申请号 JP20030380212 申请日期 2003.11.10
申请人 CANON INC 发明人 HIROBE FUMITAKE
分类号 G03G15/09;G03G15/08;(IPC1-7):G03G15/08 主分类号 G03G15/09
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