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US 6,555,210 B1Granted
Charging member and charging device
AssigneeBridgestone Corporation
InventorsYoshitomo Masuda, Gaku Yakushiji, Takahiro Kawagoe
Life of this patent
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Abstract
A new charging member which is durable enough to exhibit stable performance over a long period of time without deterioration by the sticking of toner particles. It is characterized by its surface having a universal hardness no higher than 10 N/mm2 at a depth equivalent to the diameter of toner particles.
Claims18
A charging member for charging a latent image supporting body in electrophotoprocess;
- wherein said charging member has a surface whose universal hardness is no higher than 10 N/mm2 at a depth equivalent to the diameter of toner particles.
A charging member for charging a latent image supporting body in electrophotoprocess;
- wherein said charging member has a surface whose universal hardness is no higher than 10 N/mm2 at a depth of 7 μm.
Dependencies are inferred from the claim text.