JPS59109364U - Fixing roller for electrophotography - Google Patents
Fixing roller for electrophotographyInfo
- Publication number
- JPS59109364U JPS59109364U JP363883U JP363883U JPS59109364U JP S59109364 U JPS59109364 U JP S59109364U JP 363883 U JP363883 U JP 363883U JP 363883 U JP363883 U JP 363883U JP S59109364 U JPS59109364 U JP S59109364U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- roller
- magnetic material
- fixing roller
- electrophotography
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Fixing For Electrophotography (AREA)
- Control Of Temperature (AREA)
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
第１図は電子写真用の定着ローラーの従来の温度制御方
法を示した図、第２図は本考案に係る電子写真用定着ロ
ーラーの第１の実施例を示した図、第３図は第２の実施
例を示した図、第４図は第３の実施例を示した図、第５
図はその発振−・共振回路の回路図、第６図は第４の実
施例を示した図、第７図ａ、ｂはマグネットスイッチと
感温磁性体から成る加熱ローラーの関係を示した図であ
る。
１・・・・・・磁気ローラー、２・・・・・・記録用紙
、３・・・・・・定着ローラー、４・・・・・・ゴムロ
ーラー、５・・・・・・加熱ローラー、５Ａ・・・・・
・加熱ローラー、６・・・・・・発熱体、７・・・・・
・感温磁性体、１１・・・・・・制御機構、１２・・・
・・・測温体、１３・・・・・・ｉｔ＋御回路、１４・
・・・・・センサー、１４Ａ・・・・・・コイル、１５
・・・・・・発振共振回路、１５Ａ・・・・・・発振回
路、１５Ｂ・・・・・・入力、１５Ｃ・・・・・・出力
、１６・・・・・・制御回路、１７・・・・・・マグネ
ットスイッチ、１７Ａ・・・・・・マグネット、１７Ｂ
・・・・・・スイッチ本体１．１７Ｃ・・・・・・磁束
。FIG. 1 is a diagram showing a conventional temperature control method of a fixing roller for electrophotography, FIG. 2 is a diagram showing a first embodiment of a fixing roller for electrophotography according to the present invention, and FIG. Figure 4 shows the third embodiment, Figure 5 shows the third embodiment, and Figure 5 shows the third embodiment.
The figure is a circuit diagram of the oscillation/resonance circuit, Figure 6 is a diagram showing the fourth embodiment, and Figures 7a and b are diagrams showing the relationship between the magnetic switch and the heating roller made of a temperature-sensitive magnetic material. It is. 1... Magnetic roller, 2... Recording paper, 3... Fixing roller, 4... Rubber roller, 5... Heat roller, 5A...
・Heating roller, 6... Heating element, 7...
・Temperature-sensitive magnetic material, 11... Control mechanism, 12...
...Thermometer, 13...IT+control circuit, 14.
...Sensor, 14A...Coil, 15
...Oscillation resonance circuit, 15A...Oscillation circuit, 15B...Input, 15C...Output, 16...Control circuit, 17. ...Magnet switch, 17A...Magnet, 17B
...Switch body 1.17C...Magnetic flux.
Claims (4)
たゴムローラーと、該ゴムローラーに圧接しらながら回
転し、内部に発熱体を内蔵する加熱ローラーと、前記発
熱体の発熱を制御することによって加熱ローラーの温度
を調節する制御機構とから成る電子写真用定着ローラー
において、前記加熱ローラーに感温磁性体を配設し、前
記制御機構は該感温磁性体の磁気特性の変化を検出する
センサーと、該センサーから送られる信号に基いて発熱
体の発熱を制御する制御回路とから構成されていること
を特徴とする電子写真用定着ローラー。(1) A rubber roller whose outer surface is made of an elastic material such as rubber, a heating roller that rotates while being pressed against the rubber roller and has a heating element built inside, and controlling the heat generation of the heating element. A fixing roller for electrophotography, which comprises a control mechanism for adjusting the temperature of the heating roller, wherein a temperature-sensitive magnetic material is disposed on the heating roller, and the control mechanism detects changes in the magnetic properties of the temperature-sensitive magnetic material. A fixing roller for electrophotography, comprising a sensor and a control circuit that controls heat generation of a heating element based on a signal sent from the sensor.
で構成したことを特徴とする実用新案登録請求の範囲第
１項記載の電子写真用定着ローラ０(2) A fixing roller for electrophotography according to claim 1, wherein a part or all of the heating roller is made of a temperature-sensitive magnetic material.
流損失を検出するコイルと、該検出コイルを含むＬＣ回
路のインピーダンス変化によって出力差を生せしめる発
振・共振回路と、前記出力差によって発熱体の発熱を制
御する制御回路とから成っていることを特徴とする実用
新案登録請求の範囲第１項または第２項記載の電子写真
用定着ローラー。(3) The control mechanism includes a coil that detects eddy current loss due to the temperature of the temperature-sensitive magnetic material, an oscillation/resonance circuit that generates an output difference due to an impedance change of an LC circuit including the detection coil, and a The fixing roller for electrophotography according to claim 1 or 2, characterized in that it comprises a control circuit for controlling heat generation of the heating element.
一点を有する磁性体であり、前記制御機構は、前記感温
磁性体のキューリ一点の前後における磁束の変化によっ
てオン・オフするマグネットスイッチから成っているこ
とを特徴とする実用新案登録請求の範囲第１項または第
２項記載の電子写真用定着ローラー。(4) The temperature-sensitive magnetic material is a magnetic material having a Curie point near a desired control temperature, and the control mechanism is a magnetic switch that is turned on and off by changes in magnetic flux before and after the Curie point of the temperature-sensitive magnetic material. An electrophotographic fixing roller according to claim 1 or 2, characterized in that the roller comprises:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP363883U JPS59109364U (en) | 1983-01-14 | 1983-01-14 | Fixing roller for electrophotography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP363883U JPS59109364U (en) | 1983-01-14 | 1983-01-14 | Fixing roller for electrophotography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59109364U true JPS59109364U (en) | 1984-07-23 |
Family
ID=30135247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP363883U Pending JPS59109364U (en) | 1983-01-14 | 1983-01-14 | Fixing roller for electrophotography |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59109364U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016110058A (en) * | 2014-11-27 | 2016-06-20 | 株式会社東芝 | Fixing device |
-
1983
- 1983-01-14 JP JP363883U patent/JPS59109364U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016110058A (en) * | 2014-11-27 | 2016-06-20 | 株式会社東芝 | Fixing device |
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