JPS622069U - - Google Patents
Info
- Publication number
- JPS622069U JPS622069U JP8990486U JP8990486U JPS622069U JP S622069 U JPS622069 U JP S622069U JP 8990486 U JP8990486 U JP 8990486U JP 8990486 U JP8990486 U JP 8990486U JP S622069 U JPS622069 U JP S622069U
- Authority
- JP
- Japan
- Prior art keywords
- heat roller
- copy paper
- fixing
- temperature
- roller
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
- Control Of Resistance Heating (AREA)
Description
第１図は本考案の実施される静電式複写機１の
断面図、第２図は本考案の一実施例の熱定着装置
の簡略化した斜視図、第３図は第２図示のハロゲ
ンヒータ３４ｂおよびサーミスタ５１に接続され
る電気回路図、第４図は熱ローラ３４の外周の温
度分布を示すグラフである。
１…静電式複写機、２…原稿、３…移動枠、５
…複写紙、７…複写紙裁断装置、８…帯電装置、
９…複写紙露光部、１０…現像装置、１１…熱定
着装置、２４…光源ランプ、３４…熱ローラ、３
４ａ…円筒体、３４ｂ…ハロゲンヒータ、３５…
圧ローラ、３８…冷却装置、５１…サーミスタ、
５２…切換スイツチ、５３，５４…抵抗、５７…
プリントボタン、５８…複写操作完了検出スイツ
チ、５９…リレー。
FIG. 1 is a sectional view of an electrostatic copying machine 1 in which the present invention is implemented, FIG. 2 is a simplified perspective view of a heat fixing device according to an embodiment of the present invention, and FIG. 3 is a halogen The electrical circuit diagram connected to the heater 34b and thermistor 51, FIG. 4, is a graph showing the temperature distribution around the outer periphery of the heat roller 34. 1... Electrostatic copying machine, 2... Original, 3... Moving frame, 5
... Copy paper, 7... Copy paper cutting device, 8... Charging device,
9... Copy paper exposure section, 10... Developing device, 11... Heat fixing device, 24... Light source lamp, 34... Heat roller, 3
4a... Cylindrical body, 34b... Halogen heater, 35...
Pressure roller, 38... Cooling device, 51... Thermistor,
52...Selector switch, 53, 54...Resistor, 57...
Print button, 58...Copy operation completion detection switch, 59...Relay.
Claims (1)
熱ローラとの間に複写紙を挾圧搬送するための圧
ローラとを含み、 熱ローラと圧ローラの長手方向の中央位置と、
複写紙の通過する経路の幅方向中央位置とがほぼ
一致しており、さらに 複写紙の通過する経路の幅方向中央位置または
その近傍位置で、かつ熱ローラの上部寄りで、熱
ローラの外周表面温度を検出する温度検出素子と
、 複写紙が定着されつつある状態を検出する定着
状態検出手段と、 前記温度検出出力と前記定着状態検出出力とに
応答して、定着状態時に前記熱ローラの前記位置
が定着を行なうに必要な相対的に低い予め定めた
温度となるように、かつ、非定着状態時に前記熱
ローラの前記位置が定着を行なうに必要な相対的
に高い予め定めた温度となるように、かつ、複写
紙の通過する経路の幅方向の範囲にわたつて熱ロ
ーラの外周面の温度が定着に適した温度であるよ
うに、前記熱ローラを付勢する温度制御手段とを
含むことを特徴とする接触加熱定着装置。[Claims for Utility Model Registration] A heat roller that contacts the heat roller below the heat roller,
A pressure roller for pinching and conveying the copy paper between the heat roller and the heat roller, and a center position in the longitudinal direction of the heat roller and the pressure roller;
The center position in the width direction of the path through which the copy paper passes, and the outer peripheral surface of the heat roller at or near the center position in the width direction of the path through which the copy paper passes, and near the top of the heat roller. a temperature detecting element for detecting temperature; a fixing state detecting means for detecting a state in which the copy paper is being fixed; The position of the heat roller is at a relatively low predetermined temperature necessary for fixing, and the position of the heat roller is at a relatively high predetermined temperature necessary for fixing when in a non-fixing state. and temperature control means for energizing the heat roller so that the temperature of the outer circumferential surface of the heat roller is a temperature suitable for fixing over the range in the width direction of the path through which the copy paper passes. A contact heating fixing device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8990486U JPS6243314Y2 (en) | 1986-06-12 | 1986-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8990486U JPS6243314Y2 (en) | 1986-06-12 | 1986-06-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS622069U true JPS622069U (en) | 1987-01-08 |
| JPS6243314Y2 JPS6243314Y2 (en) | 1987-11-10 |
Family
ID=30644423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8990486U Expired JPS6243314Y2 (en) | 1986-06-12 | 1986-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6243314Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08305192A (en) * | 1995-05-08 | 1996-11-22 | Canon Inc | Image forming device |
-
1986
- 1986-06-12 JP JP8990486U patent/JPS6243314Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08305192A (en) * | 1995-05-08 | 1996-11-22 | Canon Inc | Image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6243314Y2 (en) | 1987-11-10 |
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