| abstract |
An image forming apparatus having a photoreceptor, a developing section, a transferring section, and a cleaning section, wherein the toner is manufactured by a polymerization method, particle diameter is 3-8 mum, and a shape factor of the toner is 0.940-0.985. The cleaning section has a rubber blade, and a brush roller implanted with brush fibers, wherein a value of effective rubbing force F, defined by the following expression, of brush fibers is in a range of 2.5-10.5,wherein,"n" represents implanted density of the brush fibers (fibers/mm<2>), "x" represents a linear speed difference between the brush fibers and the photoreceptor (mm/s), "y" represents an encroaching amount (mm) of the brush fibers upon the photoreceptor, "E" represents Young's modulus (kgf/mm<2>), "t" represents a diameter (mm), and "L" represents a free length (mm) of the brush fibers. |