FIXING DEVICE AND IMAGE FORMING APPARATUS INCLUDING SAME
First Claim
1. An induction heating-type fixing device, comprising:
- a fixing member including a heat generating layer to heat and fuse a toner image on a recording medium;
an excitation coil wound a predetermined number of times and facing an outer surface of the fixing member, to generate a magnetic flux relative to the fixing member;
a magnetic core to form a continuous magnetic path to direct the magnetic flux generated by the excitation coil to the fixing member;
a holder to hold the excitation coil and the magnetic core; and
a pressing member disposed opposite the fixing member to press against the fixing member and form a fixing nip between the fixing member and the pressing member through which the recording medium is conveyed,the magnetic core exposed from the holder at the fixing member side.
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Accused Products
Abstract
An induction heating-type fixing device includes a fixing member, an excitation coil, a magnetic core, a holder, and a pressing member. The fixing member includes a heat generating layer to heat and fuse a toner image on a recording medium. The excitation coil wound a predetermined number of times is disposed facing an outer surface of the fixing member, to generate a magnetic flux relative to the fixing member. The magnetic core forms a continuous magnetic path to direct the magnetic flux generated by the excitation coil to the fixing member. The holder holds the excitation coil and the magnetic core. The pressing member is disposed opposite the fixing member to press against the fixing member and form a fixing nip between the fixing member and the pressing member through which the recording medium is conveyed. The magnetic core is exposed from the holder at the fixing member side.
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Citations
14 Claims
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1. An induction heating-type fixing device, comprising:
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a fixing member including a heat generating layer to heat and fuse a toner image on a recording medium; an excitation coil wound a predetermined number of times and facing an outer surface of the fixing member, to generate a magnetic flux relative to the fixing member; a magnetic core to form a continuous magnetic path to direct the magnetic flux generated by the excitation coil to the fixing member; a holder to hold the excitation coil and the magnetic core; and a pressing member disposed opposite the fixing member to press against the fixing member and form a fixing nip between the fixing member and the pressing member through which the recording medium is conveyed, the magnetic core exposed from the holder at the fixing member side. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 14)
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10. An induction-heating type fixing device, comprising:
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a fixing member including a heat generating layer to heat and fuse a toner image on a recording medium; an excitation coil wound a predetermined number of times and facing an outer surface of the fixing member, to generate a magnetic flux relative to the fixing member; a magnetic core to form continuous magnetic path to direct the magnetic flux generated by the excitation coil to the fixing member; a holder to hold the excitation coil and the magnetic core; and a pressing member disposed opposite the fixing member, to press against the fixing member and form a fixing nip between the fixing member and the pressing member through which the recording medium is conveyed; wherein the magnetic core is embedded in a wall of the holder. - View Dependent Claims (11, 12, 13)
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Specification