发明名称 DEVELOPING DEVICE
摘要 PROBLEM TO BE SOLVED: To form an image with high image quality and to prevent deterioration of developer and frictional scratches on a developing sleeve by removing image history which remains on the developing sleeve after development, and eliminating an image defect, called ghost, after the development. SOLUTION: The developing device has a magnetic-field generation member 148 which is disposed opposite the developing sleeve 141, intensifies a magnetic field near the surface of the developing sleeve 141 toward outside, and collects developer on the developing sleeve 141 by attracting it in such a manner as to peel it off the developing sleeve 141. The device also has a developer carrying member 144 which is disposed rotatably near the developing sleeve 141 and the magnetic-field generation member 148, and carries the developer, attracted and carried from the developing sleeve 141 by the magnetic-field generation member 148, to a developer storage part 140 so that the developer is not moved toward the developing sleeve 141.
申请公布号 JPH11133747(A) 申请公布日期 1999.05.21
申请号 JP19970300532 申请日期 1997.10.31
申请人 KONICA CORP 发明人 SUZUKI KEIICHIRO
分类号 G03G15/01;G03G15/08;G03G15/09 主分类号 G03G15/01
代理机构 代理人
主权项
地址