Heater having at least one cycle path resistor and image heating apparatus therein
AssigneeCanon Kabushiki Kaisha
InventorsAkira Kato, Yoji Tomoyuki, Yusuke Nakazono, Kenichi Ogawa, Hiroyuki Sakakibara
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Abstract
A heater, or an image heating apparatus including the heater includes a substrate, heat generating resistors formed at least in a cycle path on the substrate, and current supply electrodes provided at electrical ends of the heat generating resistors, wherein plural heat generating resistors are connected in parallel to at least one of the current supply electrodes. Thus there can be obtained a heater having excellent heat generating characteristics even in a compact dimension and an image heating apparatus utilizing such heater.
Claims18
A heater comprising:
- a substrate;
- heat generating resistors formed at least in a cycle path including a forward path and a return path on said substrate;
- and
- current supply electrodes provided at electrical ends of said heat generating resistors;
- wherein plural heat generating resistors are connected in parallel to at least one of said current supply electrodes.
An image heating apparatus for heating an image formed on a recording material, comprising:
- a heater, including a substrate, heat generating resistors formed at least in a cycle path including a forward path and a return path on said substrate, and current supply electrodes provided at electrical ends of said heat generating resistors;
- and
- a flexible sleeve rotating in sliding contact with said heater;
- wherein a plurality of said heat generating resistors are connected in parallel to at least one of said current supply electrodes.
A heater comprising:
- a substrate;
- heat generating resistors provided on said substrate and formed by resistors of different resistances connected serially at least in two cycle paths.
An image heating apparatus for heating an image formed on a recording material, comprising:
- a heater, including a substrate, heat generating resistors provided on said substrate and formed by resistors of different resistances connected serially at least in two cycle paths, and current supply electrodes provided at electrical ends of said heat generating resistors;
- and
- a flexible sleeve rotating in sliding contact with said heater.
Dependencies are inferred from the claim text.