Pressure roller and fixing device equipped with the same
AssigneeCanon Kabushiki Kaisha
InventorsHiroyuki Sakakibara, Noriaki Sato, Shuji Saito, Hirohiko Aiba, Kouichi Uchida
Life of this patent
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Abstract
A pressure roller for use in a fixing device includes a core metal, an elastic layer, and a releasing layer. The releasing layer is made of at least one fluorine resin selected from among tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, ethylene-tetrafluoroethylene copolymer, and tetrafluoroethylene-hexafluoropropylene copolymer. The fluorine resin contains at least one polymer selected from among polyvinylidene fluoride, polyacrylonitrile, and polymethyl methacrylate, and monomer electrolyte.
Claims23
A pressure roller for use in a fixing device, the pressure roller comprising:
- a core metal;
- an elastic layer;
- and
- a releasing layer,
- wherein the releasing layer is made of at least one fluorine resin selected from among tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, ethylene-tetrafluoroethylene copolymer, and tetrafluoroethylene-hexafluoropropylene copolymer, the fluorine resin containing:
- at least one polymer selected from among polyvinylidene fluoride, polyacrylonitrile, and polymethyl methacrylate;
- and
- monomer electrolyte,
- wherein an amount of addition of the polymer to the fluorine resin is in the range of 0.05 parts to 5 parts relative to 100 parts of the fluorine resin.
A fixing device comprising:
- a heating member;
- and
- a pressure roller including a core metal, an elastic layer, and a releasing layer, and forming, together with the heating member, a nip portion configured to heat, while pinching and transporting, a recording material carrying an image,
- wherein the releasing layer is made of at least one fluorine resin selected from among tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, ethylene-tetrafluoroethylene copolymer, and tetrafluoroethylene-hexafluoropropylene copolymer, the fluorine resin containing:
- at least one polymer selected from among polyvinylidene fluoride, polyacrylonitrile, and polymethyl methacrylate;
- and
- monomer electrolyte,
- wherein an amount of addition of the polymer to the fluorine resin is in the range of 0.05 parts to 5 parts relative to 100 parts of the fluorine resin.
A pressure roller for use in a fixing device, the pressure roller comprising:
- a core metal;
- an elastic layer;
- a releasing layer;
- and
- an adhesive layer arranged between the elastic layer and the releasing layer,
- wherein the releasing layer is made of at least one fluorine resin selected from among tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, ethylene-tetrafluoroethylene copolymer, and tetrafluoroethylene-hexafluoropropylene copolymer, the fluorine resin containing:
- at least one polymer selected from among polyvinylidene fluoride, polyacrylonitrile, and polymethyl methacrylate;
- and
- monomer electrolyte,
- wherein the adhesive layer containing monomer electrolyte.
A pressure roller for use in a fixing device, the pressure roller comprising:
- a core metal;
- an elastic layer;
- a releasing layer;
- and
- an adhesive layer arranged between the elastic layer and the releasing layer,
- wherein the releasing layer is made of at least one fluorine resin selected from among tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer, ethylene-tetrafluoroethylene copolymer, and tetrafluoroethylene-hexafluoropropylene copolymer, the fluorine resin containing:
- at least one polymer selected from among polyvinylidene fluoride, polyacrylonitrile, and polymethyl methacrylate;
- and
- monomer electrolyte,
- wherein the adhesive layer containing conductive particle and monomer electrolyte.
Dependencies are inferred from the claim text.