Heat-pressure fixing device and silicone rubber roller
AssigneeCanon Kabushiki Kaisha
InventorsOsamu Soutome, Kazuo Kishino, Masaaki Takahashi, Jiro Ishizuka, Hideo Kawamoto, Mitsuhiro Ohta
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Abstract
A heat-pressure fixing device for fixing a toner image is composed of a fixing member, a pressure member and an oil applicator for applying dimethylsilicone oil as a release oil. The fixing member is surfaced with dimethylsilicone rubber having a storage modulus E' satisfying 1.0.times.10.sup.6 dyn/cm.sup.2 <E'<1.5.times.10.sup.7 dyn/cm.sup.2 and a loss modulus E" satisfying 1.0.times.10.sup.5 dyn/cm.sup.2 <E"<7.5.times.10.sup.5 dyn/cm.sup.2, and exhibits a good release performance at a low dimethylsilicone oil application rate of 1-20 mg/A4-size (621 cm.sup.2).
Claims17
A heat-pressure fixing device for fixing a toner image, comprising a fixing member, a pressure member, and means for applying dimethylsilicone oil as a release oil, wherein
- the fixing member is surfaced with dimethylsilicone rubber having a storage modulus E' satisfying 1.0.times.10.sup.6 dyn/cm.sup.2 <E'<1.5.times.10.sup.7 dyn/cm.sup.2 and a loss modulus E" satisfying 1.0.times.10.sup.5 dyn/cm.sup.2 <E"<7.5.times.10.sup.5 dyn/cm.sup.2, and
- the dimethylsilicone oil is applied onto the surface of the fixing member at a rate of 1-20 mg/621-cm.sup.2 (A4-size).
A heat-pressure fixing device for fixing a toner image, comprising a fixing member, a pressure member, and means for applying dimethylsilicone oil as a release oil, wherein
- each of the fixing member and the pressure member is surfaced with dimethylsilicone rubber having a storage modulus E' satisfying 1.0.times.10.sup.6 dyn/cm.sup.2 <E'<1.5.times.10.sup.7 dyn/cm.sup.2 and a loss modulus E" satisfying 1.0.times.10.sup.5 dyn/cm.sup.2 <E"<7.5.times.10.sup.5 dyn/cm.sup.2, and
- the dimethylsilicone oil is applied onto the surface of the fixing member at a rate of 1-20 mg/621-cm.sup.2 (A4-size).
A silicone rubber roller, surfaced with dimethylsilicone rubber having a storage modulus E' satisfying 1.0.times.10.sup.6 dyn/cm.sup.2 <E'<1.5.times.10.sup.7 dyn/cm.sup.2 and a loss modulus E" satisfying 1.0.times.10.sup.5 dyn/cm.sup.2 <E"<7.5.times.10.sup.5 dyn/cm.sup.2.
Dependencies are inferred from the claim text.