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AssigneeKonica Minolta, Inc.
InventorsKengo Ikeda, Hiroki Takao, Tomoko Sakimura, Mayuko Matsusaki
Estimating the term…
An electrophotographic image forming apparatus includes: an electrophotographic photoreceptor; a charger that charges a surface of the electrophotographic photoreceptor; an exposer that exposes the charged electrophotographic photoreceptor; a developer that supplies a toner to the electrophotographic photoreceptor on which an electrostatic latent image is formed; a transferer that transfers a toner image formed on the electrophotographic photoreceptor; and a cleaner that removes a residual toner remaining on a surface of the electrophotographic photoreceptor, wherein the electrophotographic photoreceptor includes an outermost layer, a surface of the outermost layer has a projection structure due to a ridge of the inorganic filler, the toner contains toner base particles and metal oxide particles as an external additive externally added to the toner base particles, 70% or more of the toner base particles are covered with the metal oxide particles as the external additive, and following formulas (1) to (3) are satisfied. [ Numerical formula 1 ] R 2 ≤ 2 2 R 1 R 3 - R 1 2 ( 1 ) 0 < R 1 < R 3 ( 2 ) 0 < R 2 ≤ 250 ( 3 )
An electrophotographic image forming apparatus comprising:
An electrophotographic image forming method comprising:
Dependencies are inferred from the claim text.