| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure member that can reduce a warm-up time required for increasing temperature to a temperature sufficient to fix an unfixed toner, and has suppressed the generation of wrinkles in the circumferential direction of the pressure member.SOLUTION: There is provided a pressure member having a substrate, an elastic layer formed the outside of the substrate, and a surface layer formed on the elastic layer and including a fluorine resin, where the surface layer is fixed onto the elastic layer while elongated in the longitudinal direction of the pressure member; the porosity of the elastic layer is 20 volume% or more and 60 volume% or less; when the elastic modulus in the thickness direction of the elastic layer is E(ND) and the elastic modulus in the longitudinal direction of the pressure member of the elastic layer is E(MD), E(MD)/E(ND) is larger than 1.0.SELECTED DRAWING: Figure 7 |
