| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming apparatus and an image forming method in which a deposit on a photoreceptor can be efficiently removed while maintaining charging property and by which good images can be stably provided over a long period of time, and a toner applied to these. SOLUTION: The image forming apparatus comprises: a latent image bearing member bearing an image; a charging unit for uniformly charging a surface of the latent image bearing member; a latent image forming unit for forming an electrostatic latent image on the latent image bearing member; a developing unit for developing the electrostatic latent image by supplying a toner; a transfer unit for transferring a toner image formed on the latent image bearing member onto a transfer material; and a collecting unit for collecting non-transferred toner remaining on the latent image bearing member after the transfer, wherein the non-transferred toner collected with the collecting unit is supplied to the developing unit and reused. The toner has inorganic fine particles externally added thereto, wherein a detached ratio R1 of the inorganic fine particles from the non-transferred toner is 0-20%, a detached ratio R2 of the inorganic fine particles from toner passed through the collecting unit is 20-80%, and a ratio of the detached ratio R2 to the detached ratio R1 is≥1.5. COPYRIGHT: (C)2008,JPO&INPIT
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