Charging member cleaning unit, method of producing charging member cleaning unit, charging device, process cartridge and image forming apparatus
View Patent ↗A charging member cleaning unit, that contacts a charging member that charges the surface of an image holding member provided in an image forming apparatus, and is used for cleaning the surface of that charging member, has an elastic layer, and has an amine content within the elastic layer of not more than approximately 60 ppm.
1. A charging device, comprising a charging member and a charging member cleaning unit that contacts the charging member, wherein
the charging member has a conductive elastic layer comprising an ion-conductive agent, and
the charging member cleaning unit has an elastic layer, and has an amine content within the elastic layer of not more than approximately 60 ppm.
2. The charging device according to claim 1 , wherein the amine content is not more than approximately 30 ppm.
3. The charging device according to claim 1 , wherein a hardness of the elastic layer is within a range from not less than approximately 100 N to not more than approximately 500 N.
4. The charging device according to claim 1 , wherein the elastic layer comprises a polyurethane foam.
5. The charging device according to claim 1 , wherein the amine is a tertiary amine.
6. The charging device according to claim 1 , wherein
the charging member comprises a conductive core and a surface layer, and
the surface layer comprises at least one resin selected from the group consisting of polyamide resins, polyester resins, polyurethane resins and acrylic resins.
7. The charging device according to claim 6 , wherein the polyamide resin is at least one of an alcohol-soluble copolymer nylon and an N-methoxymethylated nylon.
8. The charging device according to claim 1 , wherein the conductive elastic layer comprises a polar polymer.
9. The charging device according to claim 8 , wherein the polar polymer is at least one polymer selected from the group consisting of epichlorohydrin rubbers, epichlorohydrin-ethylene oxide copolymer rubbers, acrylonitrile butadiene rubbers, and urethane rubbers.
10. The charging device according to claim 1 , wherein the ion-conductive agent comprises a quaternary ammonium salt.
11. A process cartridge, comprising an image holding member and a charging device that charges a surface of the image holding member, wherein
the charging device comprises a charging member and a charging member cleaning unit that contacts the charging member,
the charging member has a conductive elastic layer comprising an ion-conductive agent, and
the charging member cleaning unit has an elastic layer, and has an amine content within the elastic layer of not more than approximately 60 ppm.
12. The process cartridge according to claim 11 , wherein the amine is a tertiary amine.
13. An image forming apparatus, comprising:
an image holding member;
a charging device that charges a surface of the image holding member, comprising a charging member and a charging member cleaning unit that contacts the charging member;
a latent image-forming unit that forms a latent image on the surface of the image holding member;
a developing unit that develops the latent image formed on the surface of the image holding member using a toner, thereby forming a toner image; and
a transfer unit that transfers the toner image formed on the surface of the image holding member to a transfer target, wherein
the charging member has a conductive elastic layer comprising an ion-conductive agent, and
the charging member cleaning unit has an elastic layer, and has an amine content within the elastic layer of not more than approximately 60 ppm.
14. The image forming apparatus according to claim 13 , wherein the amine is a tertiary amine.