JPS58135762U

JPS58135762U - Fusing device

Info

Publication number: JPS58135762U
Application number: JP3246982U
Authority: JP
Inventors: 佐治　正恭; 落合　紹夫
Original assignee: 東京濾器株式会社
Priority date: 1982-03-10
Filing date: 1982-03-10
Publication date: 1983-09-12

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の定着装置の一例を示す断面図、第２図は
従来の他の定着装置の示す一部破断斜視図、第３図はこ
の考案による定着装置の要部実施例を示す斜視図、第４
図はそめ一部断面図、第５図ａ、　　ｂはこの考案で使
用されている発熱体の温度特性を示すグラフである。１・・・トナー像、２・・・用紙、３・・・電気発熱体
、４′・・・ヒートロー−７−１５・・田−ラー、６・
・・芯部、７・・・絶縁層、＄ａ、　　８ｂ・・・給電
用リング。FIG. 1 is a sectional view showing an example of a conventional fixing device, FIG. 2 is a partially cutaway perspective view of another conventional fixing device, and FIG. 3 is a perspective view showing an embodiment of the main part of the fixing device according to this invention. Figure, 4th
The figure is a partial sectional view, and Figures 5a and 5b are graphs showing the temperature characteristics of the heating element used in this invention. DESCRIPTION OF SYMBOLS 1... Toner image, 2... Paper, 3... Electric heating element, 4'... Heat roll-7-15... Roller, 6...
...Core part, 7...Insulating layer, $a, 8b...Power supply ring.

Claims

[Scope of utility model registration request]

The toner image is fixed on the paper by conveying the paper onto which the toner image has been transferred while being held between a pair of rollers including a heat roller in which at least one of the rollers has a built-in electric heating element, wherein the heating element is The heating element is arranged in a plane along the outer surface of the core of the heat roller, and the heating element is covered with an insulating layer having good releasability to toner, and the heating element is made of a semiconductor having a positive temperature coefficient. A fixing device characterized by comprising: