发明名称 Image forming method, image forming apparatus and process cartridge
摘要 Improvement has been made in an image forming method comprising charging electrically an image holding member, forming a latent electrostatic image on the image holding member, developing the latent image with a toner, transferring the toner image onto a toner image receiving medium, and recovering untransferred toner. In this method, a magnetic brush formed from magnetic particles electrifies the image holding member by contact with the image holding member surface, recovers temporarily at least a part of the toner remaining on the image holding member after the image transfer, and transfers the recovered toner further again onto the image holding member, wherein the toner has a weight-average particle diameter of not larger than +E,fra 1/3+EE of average particle diameter of the magnetic particles and the magnetic particles contain particles of diameter of not larger than +E,fra 1/3+EE of the average particle diameter of the magnetic particles at a content ranging from 0 to 50% by volume. Thereby, contamination of the magnetic particles by the toner and interception of the electric conduction path in the magnetic brush are prevented, and deterioration of the toner is prevented without excessive shearing of the recovered toner with magnetic particles.
申请公布号 US6002900(A) 申请公布日期 1999.12.14
申请号 US19980094625 申请日期 1998.06.15
申请人 CANON KABUSHIKI KAISHA 发明人 ISHIYAMA, HARUMI
分类号 G03G9/08;G03G15/02;G03G21/00;(IPC1-7):G03G15/30 主分类号 G03G9/08
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