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Fixing device and image forming device including the fixing device

A technology for heating rotation and core, which is applied in the fields of fixing devices and image forming devices, and can solve the problems of increasing the heat capacity of the fixing device and the like

Inactive Publication Date: 2016-06-15
KYOCERA DOCUMENT SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the heat capacity of the fixing unit may increase

Method used

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  • Fixing device and image forming device including the fixing device
  • Fixing device and image forming device including the fixing device
  • Fixing device and image forming device including the fixing device

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Experimental program
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Embodiment Construction

[0026] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below, and various modifications can be made within the scope of the idea of ​​the present invention.

[0027] according to figure 1 , the overall configuration of the printer 1 serving as the image forming apparatus in this embodiment will be described. figure 1 It is a diagram for explaining the arrangement of each component of the printer 1 according to the embodiment of the present invention. In the following description, there will be figure 1 The case where the up and down direction in is described as "vertical direction".

[0028] Such as figure 1 As shown, the printer 1 as the image forming apparatus according to this embodiment has an apparatus main body M. As shown in FIG. The apparatus main body M has an image forming unit GK that forms a toner image on paper T as a sheet-like transfer mater...

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PUM

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Abstract

The present invention provides a fixing device and an image forming device including the fixing device. The fixing device of the present invention includes: an induction coil generating magnetic flux; a heating rotary belt having a heat-generating layer thinner than a penetration depth of a magnetic field; a pressing rotary body arranged to face the heating rotary belt; a magnet core; a member arranged inside the heating rotary belt and in contact with the inner surface of the heating rotary belt; and a movable guide part arranged inside the heating rotary belt and in contact with the inner surface of the heating rotary belt , and is composed of a substantially cylindrical frame; with one or more shielding parts, the movable guide part can be rotated so as to be located at a first shielding position and a first non-shielding position, in the first shielding position , the one or more shielding portions reduce or shield magnetic flux, and in the first non-shielding position, the one or more shielding portions do not reduce or shield magnetic flux. According to the present invention, it is possible to effectively adjust the amount of heat generated by the heating rotary belt in the notification area and the non-paper passing area according to the size of the paper, and to reduce the heat capacity of the fixing device.

Description

technical field [0001] The present invention relates to a fixing device and an image forming device including the fixing device. Background technique [0002] Conventionally, in image forming apparatuses, a belt-type fixing device capable of reducing heat capacity has attracted attention. In addition, in recent years, an electromagnetic induction heating (IH; induction heating) method capable of rapid heating or efficient heating has attracted attention. [0003] In the fixing device employing the electromagnetic induction heating method, the following proposal has been made: In order to suppress the outer area (not The temperature of the paper passing area, the second area) rises excessively, adjust according to the length (paper passing width) of the paper as the transfer material being conveyed (paper passing) to the fixing device in the direction perpendicular to the paper conveying direction. The amount of heat generated by the heating rotating body in the non-paper-p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G15/20G03G15/00H05B6/10
CPCG03G15/2053
Inventor 南条让
Owner KYOCERA DOCUMENT SOLUTIONS INC