CPC G03G 15/2053 (2013.01) [G03G 15/2064 (2013.01)] | 20 Claims |
1. A heating device, comprising:
a rotatable film;
a heater including:
a substrate that extends along a first direction and has two surfaces opposite to each other, and
a heater element on one of the surfaces of the substrate; and
a heat conductor having first and second surfaces and including:
a first portion contacting the other surface of the substrate, and
a second portion that is adjacent to the first portion in a second direction perpendicular to the first direction and does not contact the other surface of the substrate, wherein
a thickness of the first portion of the heat conductor from the first surface to the second surface is greater than a thickness of the second portion from the first surface to the second surface.
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