发明名称 FIXING DEVICE AND IMAGE FORMING DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide an electromagnetic induction heating type fixing device which efficiently and certainly suppress an excessive temperature rise in a paper non-passing area of a heating member even if small-sized paper is successively made to pass, requires a comparatively inexpensive manufacturing cost, and reduces the enlargement of a device; and an image forming device. <P>SOLUTION: A fixing device comprises an exciting coil which generates a magnetic flux to induction-heat a heating layer of a heating member, and a demagnetization coil 26 which opposes to the exciting coil and generates a magnetic flux in a direction canceling the magnetic flux generated by the exciting coil, at a part in a width direction. As the demagnetization coil 26, a printed board formed with a spiral coil pattern 26a is used. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012058655(A) 申请公布日期 2012.03.22
申请号 JP20100204198 申请日期 2010.09.13
申请人 RICOH CO LTD 发明人 MATSUZAKA SUSUMU
分类号 G03G15/20;H05B6/14;H05B6/36;H05B6/44 主分类号 G03G15/20
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