Charging roller and image forming apparatus
AssigneeBridgestone Corporation
InventorsKaori OKUMOTO, Makoto OTSURU
Life of this patent
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Abstract
Provided is a charging roller that can achieve excellent image quality and prevent detachment of particles in its surface layer. A charging roller 1 comprises a shaft 2 and, on an outer circumferential side of the shaft 2, at least a base layer 3 and a surface layer 4, wherein the surface layer 4 contains a binder resin 41 and particles 42, and the particles 42 contain 50 mass% or more of a same component A as at least one selected from components constituting the binder resin 41, and a content of the particles in the surface layer is 30 parts to 120 parts by mass with respect to 100 parts by mass of the binder resin.
Claims14
A charging roller comprising a shaft and, on an outer circumferential side of the shaft, at least a base layer and a surface layer that forms a roller surface,
- wherein the surface layer contains a binder resin and particles, and the particles contain 50 mass% or more of a same component as at least one selected from components constituting the binder resin, and
- a content of the particles in the surface layer is 30 parts to 120 parts by mass with respect to 100 parts by mass of the binder resin.
Dependencies are inferred from the claim text.