US 2025/0053123 A1Published application

Fixing device

AssigneeToshiba Tec Kabushiki Kaisha

InventorRyota SAEKI

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Abstract

A fixing device including a tubular body, a heater, and a heat transfer member. The heater is positioned on an inner side of a tubular body and includes a substrate that supports a heat generating body. The substrate includes a first region. A first area in a first position on an inner side of the first region is smaller than the first area in a second position present on an outer side of the first region. The heat transfer member includes a second region. A second area in a third position present on an inner side of the second region is larger than the second area in a fourth position on an outer side of the second region. At least a part of the second region overlaps at least a part of the first region in a first direction.

Claims20

Dependent claims

A fixing device comprising:

a tubular body defining a first direction along a tubular axis;
a heater positioned on an inner side of the tubular body, the heater comprising:
a substrate that supports a heat generating body, the substrate comprising:
a first region positioned along the first direction,
a first area being a cross section orthogonal to the first direction, wherein the first area in a first position on an inner side of the first region is smaller than the first area in a second position present on an outer side of the first region;
and
a heat transfer member in contact with the heater, the heat transfer member comprising:
a second region positioned along the first direction, a second area being a cross section orthogonal to the first direction,
wherein the second area in a third position on an inner side of the second region being larger than the second area in a fourth position present on an outer side of the second region, and
wherein at least a part of the second region overlaps at least a portion of the first region along the first direction.

7 more elements

A fixing device comprising:

a tubular body defining a first direction along a tubular axis;
a heater positioned on an inner side of the tubular body, the heater comprising:
a substrate that supports a heat generating body, the substrate comprising:
a first region positioned along the first direction,
a first area being a cross section orthogonal to the first direction, wherein the first area in a first position on an inner side of the first region is smaller than the first area in a second position present on an outer side of the first region;
a heater body positioned on a surface of the substrate along the first direction, and
a heat transfer member in contact with the heater, the heat transfer member comprising:
a second region positioned along the first direction, a second area being a cross section orthogonal to the first direction,
wherein the second area in a third position on an inner side of the second region being larger than the second area in a fourth position present on an outer side of the second region, and
wherein the second region overlaps at least a portion of the first region along the first direction.

7 more elements

Dependencies are inferred from the claim text.