| 摘要 |
In an embodiment of the invention, a plug is connected to an end of a litz wire of an electromagnetic induction coil. In a state where the plug is protruded, the electromagnetic induction coil, an insulating plate, a magnetic core and a coil holder are integrally sealed with a coil mold. A center coil unit, a first and a second side coil units are arranged to be opposite to a heat roller, the plug is inserted in a socket of a power source code or a connection code, and the electromagnetic induction coil can be connected to a power source.
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