Color mixing and fixing device preventing gloss unevenness
AssigneeCanon Kabushiki Kaisha
InventorTakeshi Menjo
Life of this patent
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Abstract
A fixing device having a heating roller and a pressure roller each of which has an elastic layer provided thereon and which touch each other to form a nip. The elastic layer of the heating roller is thinner than that of the pressure roller, and/or the surface effective hardness of the heating roller is 85.degree. or less and that of the pressure roller 85.degree. or greater. The nip is substantially flat. The portion of a recording member exiting the nip proceeds along a path substantially away from the heating roller.
Claims17
A color mixing and fixing device, comprising:
- a fixing roller for contacting a plurality of accumulated non-fixed toner images, said fixing roller having a heating source therein and comprising a core member and a surface rubber layer;
- and
- a pressure roller forming a nip together with said fixing roller, said pressure roller comprising a core member and an elastic layer provided thereon;
- wherein a total thickness of the elastic layer of said fixing roller is less than a total thickness of the elastic layer of said pressure roller, and the surface effective hardness of said fixing roller is less than the surface effective hardness of said pressure roller.
A color mixing and fixing device according to claim 22, wherein the elastic layer of said fixing roller is composed of a plurality of layers.
Dependencies are inferred from the claim text.