Developer supplying member, developing device, and image forming apparatus
View Patent ↗A developer supplying member is provided for supplying developer to a developer supporting member. The developer supplying member includes a foamed member having a discrete foam cell structure and being formed of a silicone rubber as a main component thereof. The foamed member constitutes a surface of the developer supplying member. The foamed member includes a foam cell wall dividing foam cells thereof and being exposed on the surface of the developer supplying member. The foam cell wall has a ten-point average surface roughness between 45.2 μm and 65.3 μm.
1. A developer supplying member for supplying developer to a developer supporting member, comprising:
a foamed member having a discrete foam cell structure and being formed of a silicone rubber as a main component thereof,
wherein said foamed member constitutes a surface of the developer supplying member,
said foamed member includes a foam cell wall dividing foam cells thereof and being exposed on the surface of the developer supplying member, and
said foam cell wall has a ten-point average surface roughness Rz between 45.2 μm and 65.3 μm.
2. The developing device according to claim 1 , wherein said foamed member has a stress relaxation ratio between 23.7% and 30.8% upon being compressed.
3. A developing device, comprising:
the developer supporting member for developing a static latent image on an image supporting member with developer; and
the developer supplying member according to claim 1 .
4. An image forming apparatus, comprising:
the image supporting member; and
the developing device according to claim 3 .
5. A developer supplying member for supplying developer to a developer supporting member, comprising:
a foamed member having a discrete foam cell structure and being formed of a silicone rubber as a main component thereof,
wherein said foamed member constitutes a surface of the developer supplying member, and
said foamed member has a stress relaxation ratio between 23.7% and 30.8% upon being compressed.
6. A developing device, comprising:
the developer supporting member for developing a static latent image on an image supporting member with developer; and
the developer supplying member according to claim 5 .
7. An image forming apparatus, comprising:
the image supporting member; and
the developing device according to claim 6 .