Image heating device and heater for use in image heating device
AssigneeCanon Kabushiki Kaisha
InventorsYasuhiro Shimura, Akira Kato, Atsushi Iwasaki
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Abstract
In an image heating device having a plurality of heating blocks which are controllable independently in a longitudinal direction of a heater, an increase of the size of the heater can be suppressed, and temperatures of a plurality of heating block can be detected. A heater has a first temperature sensor corresponding to a first heating block, a second temperature sensor corresponding to a second heating block, a first electric conductor electrically coupled to the first temperature sensor, a second electric conductor electrically coupled to the second temperature sensor, and a common electric conductor electrically coupled to the first and second temperature sensors.
Claims1
A heater for use in an image heating device, the heater comprising:
- a substrate;
- a first heating block provided on the substrate and configured to generate heat from electric power supplied thereto;
- a second heating block provided at a position different from the position of the first heating block in a longitudinal direction of the substrate and configured to separately control the first heating block;
- a first temperature sensor provided at a position corresponding to the first heating block;
- a second temperature sensor provided at a position corresponding to the second heating block;
- a first conductive pattern electrically coupled to the first temperature sensor;
- a second conductive pattern electrically coupled to the second temperature sensor;
- and
- a common conductive pattern electrically coupled to the first and second temperature sensors.
Dependencies are inferred from the claim text.