Fixing device and image forming apparatus using the same
AssigneeRicoh Company, Ltd.
InventorsAtsushi Nakafuji, Takashi Fujita, Hirokazu Ikenoue, Jun Yura
Life of this patent
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Abstract
A fixing device for fixing a toner image formed on a recording medium conveyed to a nip for fixation of the present invention includes a rotary body, a stationary heating member not forming the nip, a fixing belt passed over the rotary body and heating member, and a pressing member held in contact with the fixing belt. A resistance heating body is formed on the heating member with the intermediary of an electric insulation layer.
Claims28
A fixing device for fixing a toner image formed on a recording medium conveyed to a nip for fixation, said fixing device comprising:
- a rotary body;
- a stationary heating member not forming the nip;
- a fixing belt passed over said rotary body and said heating member;
- and
- a pressing member held in contact with said fixing belt;
- wherein a resistance heating body is formed on said heating member with the intermediary of an electric insulation layer positioned between said resistance heating body and said fixing belt.
A fixing device for fixing a toner image formed on a recording medium conveyed to a nip for fixation, said fixing device comprising:
- a rotary body;
- auxiliary rotary bodies not forming the nip;
- a fixing belt passed over said rotary body and said auxiliary rotary bodies;
- a pressing member held in contact with said fixing belt;
- a heating member positioned outside of and contacting said fixing belt in a plane;
- and
- a resistance heating body formed on a surface of said heating member opposite to a surface that contacts said fixing belt with the intermediary of an electric insulation layer positioned between said resistance heating body and said fixing belt.
In an image forming apparatus including a fixing device for fixing a toner image formed on a recording medium conveyed to a nip for fixation, said fixing device comprising:
- a rotary body;
- a stationary heating member not forming the nip;
- a fixing belt passed over said rotary body and said heating member;
- and
- a pressing member held in contact with said fixing belt;
- wherein a resistance heating body is formed on said heating member with the intermediary of an electric insulation layer positioned between said resistance heating body and said fixing belt.
In an image forming apparatus including a fixing device for fixing a toner image formed on a recording medium conveyed to a nip for fixation, said fixing device comprising:
- a rotary body;
- auxiliary rotary bodies not forming the nip;
- a fixing belt passed over said rotary body and said auxiliary rotary bodies;
- a pressing member held in contact with said fixing belt;
- a heating member positioned outside of and contacting said fixing belt in a plane;
- and
- a resistance heating body formed on a surface of said heating member opposite to a surface that contacts said fixing belt with the intermediary of an electric insulation layer positioned between said resistance heating body and said fixing belt.
A fixing device for fixing a toner image formed on a recording medium conveyed to a nip for fixation, said fixing device comprising:
- a rotary body;
- auxiliary rotary bodies not forming the nip;
- a fixing belt passed over said rotary body and said auxiliary rotary bodies;
- a pressing member held in contact with said fixing belt;
- a heating member positioned outside of and contacting said fixing belt in a plane;
- and
- a resistance heating body formed on a surface of said heating member opposite to a surface that contacts said fixing belt with the intermediary of an electric insulation layer,
- wherein said fixing belt is formed of a magnetic material while a magnetic force generating member is positioned on the surface of said heating member that contacts said fixing belt.
Dependencies are inferred from the claim text.