Belt nip-type toner fixing apparatus using elastic endless belt
AssigneeKinyosha Co., Ltd.
InventorsSaburo Sonobe, Akio Onuki
Life of this patent
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Abstract
Disclosed is a belt type fixing apparatus for thermally fixing an unfixed toner layer on a paper sheet. The fixing apparatus has a heating roll and a resilient endless belt stretched by a plurality of rolls such that the endless belt is partly pressed against a part on the circumferential outer surface of the heating roll to form a nipping portion. The heating roll having a hard, non-resilient surface has a mandrel, a halogen lamp arranged inside the mandrel and a release coating layer formed on the outer circumferential surface of the mandrel.
Claims12
A belt type toner fixing apparatus, comprising a heating roll and a resilient endless belt stretched by a plurality of supporting rolls such that the endless belt is partly pressed against a part of the circumferential outer surface of the heating roll to form a nipping portion, wherein
- said heating roll consists of a mandrel, heating means arranged inside the mandrel and a release coating layer comprised of a fluorine resin and formed on the outer circumferential surface of the mandrel, and
- said heating roll is arranged in a manner that the heating roll comes into contact with a back of a toner side of a recording medium when the recording medium passes said nipping portion.
A belt type fixing apparatus, comprising a heating roll having a hard and non-elastic surface and a resilient endless belt stretched by a plurality of supporting rolls such that the endless belt is partly pressed against a part of the circumferential outer surface of the heating roll to form a nipping portion, wherein
- said heating roll has a mandrel, heating means arranged inside the mandrel, a release coating layer defining the outer circumferential surface of the mandrel, and
- said heating roll is arranged in a manner that the heating roll comes into contact with a back of a toner side of a recording medium when the recording medium passes said nipping portion.
Dependencies are inferred from the claim text.