Toner image fixing device
AssigneeKonica Corporation
InventorsKazuhiko Uneme, Masashi Saito, Kazuo Yasuda
Life of this patent
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Abstract
A fixing device includes a fixing member, the surface of which composed of a fluororesin layer, a pressure member which is brought into contact with the surface of the fixing member; a heating member for fusing a toner image on a recording medium, which passes between the fixing member and pressure member, through the fixing member. The device further includes a hollow oil roller for coating toner repellent oil, which is accommodated inside a hollow of the roller, onto the surface of the fixing member. The outer layer of the oil roller is made of a porous layer into which a fluorine-containing surface active agent is impregnated.
Claims8
A fixing device comprising:
- (a) a fixing member, a surface of which comprises a fluorine containing resin layer;
- (b) a pressure member for applying a pressure to the surface of the fixing member;
- (c) a heating member for melting a toner image on a recording medium passing between the fixing member and the pressure member;
- and
- (d) an oil coating hollow roller storing a toner repellent oil inside a hollow portion thereof for coating the toner repellent oil onto the surface of the fixing member, wherein an outer layer of the oil coating hollow roller is a porous layer impregnated with a fluorine-containing surface active agent, and wherein the toner repellent oil is made of different material than the fluorine-containing surface active agent.
Dependencies are inferred from the claim text.