Electrophotographic member, method for manufacturing electrophotographic member, and fixing apparatus
AssigneeCanon Kabushiki Kaisha
InventorsAkeshi Asaka, Shigeaki Takada, Akiyoshi Shinagawa, Koichi Kakubari, Hiroto Ito, Yutaka Arai
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Abstract
Provided is an electrophotographic member capable of reducing a rise time of a fixing apparatus and preventing occurrence of a defective image due to an electrostatic offset. The electrophotographic member has a substrate, an elastic layer, and a surface layer containing a fluororesin, in this order, the elastic layer has a communication hole of which pores are communicated with each other, and an ionic conductive agent is adhered to an inner wall of the communication hole.
Claims10
An electrophotographic member comprising a substrate, an elastic layer, and a surface layer in this order, wherein
- the surface layer contains a fluororesin, and
- the elastic layer has a communication hole of which pores are communicated with each other, and an ionic conductive agent is adhered to an inner wall of the communication hole.
A method for manufacturing an electrophotographic member, the method comprising:
- arranging a fluororesin layer at an outer periphery of a substrate separately from the substrate and injecting a liquid silicone rubber composition into a space between the substrate and the fluororesin layer, the liquid silicone rubber composition containing a liquid silicone rubber into which water, in which an ionic conductive agent is dissolved, is emulsified and dispersed;
- primarily curing the liquid silicone rubber composition to form a silicone rubber layer in a water-containing state;
- and
- removing water from the silicone rubber layer in the water-containing state to form an elastic layer having a communication hole of which pores are communicated with each other, wherein
- the ionic conducting agent is adhered to an inner wall of the communication hole.
A fixing apparatus comprising a fixing member, and a nip portion forming member that fixes an unfixed toner image as a fixed image on a recording material by causing elastic deformation by being pressure-contacted with the fixing member to form a fixing nip part that sandwiches, conveys and heats the recording material on which the unfixed toner image is formed, wherein
- the nip portion forming member is an electrophotographic member comprising a substrate, an elastic layer, and a surface layer in this order,
- the surface layer contains a fluororesin, and
- the elastic layer has a communication hole of which pores are communicated with each other, and an ionic conductive agent is adhered to an inner wall of the communication hole.
Dependencies are inferred from the claim text.