CPC G03G 15/2039 (2013.01) [G03G 15/2053 (2013.01)] | 8 Claims |
1. A fixing device, comprising:
a fixing belt configured to rotate about an axial direction;
a heater within an interior region surrounded by the fixing belt, the heater configured to heat the fixing belt and including:
a substrate with a length direction corresponding to the axial direction, the substrate having different widths in a width direction perpendicular to the length direction such that a first portion has a width in the width direction that is greater than a width of a second portion in the width direction,
a first heating element on a central portion of a frontside of the substrate to overlap with the second portion, and
a second heating element on an end portion of the frontside of the substrate to overlap with the first portion;
a first temperature sensing element on a backside of the substrate at a position along the axial direction that overlaps with the first heating element but not the second portion; and
a second temperature sensing element at a position on the backside of the substrate along the axial direction that overlaps with the second heating element and not the first heating element.
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