JPS6380577U - - Google Patents
Info
- Publication number
- JPS6380577U JPS6380577U JP17532286U JP17532286U JPS6380577U JP S6380577 U JPS6380577 U JP S6380577U JP 17532286 U JP17532286 U JP 17532286U JP 17532286 U JP17532286 U JP 17532286U JP S6380577 U JPS6380577 U JP S6380577U
- Authority
- JP
- Japan
- Prior art keywords
- roller
- heating roller
- fixing device
- heating
- central portion
- 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
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Fixing For Electrophotography (AREA)
- Control Of Resistance Heating (AREA)
Description
第１図は本考案の加熱ローラのコアの構成を示
す断面図、第１ａ図は第１図に対応するローラの
各部分での温度の分布を示すグラフ、第２図は本
考案の加熱ローラの温度制御を行う場合の通紙部
とセンサーとの関係および温度の制御の状態を示
すグラフ、第３図はセンサーを通紙部に対応させ
て設けた場合の温度の制御の例を示すグラフ、第
４図は本考案の定着装置を適用する複写機の構成
を示す説明図、第５図は加熱ローラ方式の定着装
置の構成を示す断面図、第６図は従来の加熱ロー
ラの構成を示す縦断面図、第６ａ図は第６図に対
応するローラの温度分布を示すグラフであり、第
７図は従来例のローラにおける通紙部での温度変
化を示すグラフである。
図中の符号、１……定着装置、２……加圧ロー
ラ、３……ローラコア、５……用紙、６……トナ
ー画像、１０……加熱ローラ、１１……ローラコ
ア、１２……内部加熱素子、１３……ギヤ、１５
……中央部、１６……通紙部、１７……駆動側端
部、１８……支持側端部。
Fig. 1 is a cross-sectional view showing the core configuration of the heating roller of the present invention, Fig. 1a is a graph showing the temperature distribution in each part of the roller corresponding to Fig. 1, and Fig. 2 is a heating roller of the present invention. Fig. 3 is a graph showing an example of temperature control when a sensor is provided corresponding to the paper passing section. , FIG. 4 is an explanatory diagram showing the configuration of a copying machine to which the fixing device of the present invention is applied, FIG. 5 is a sectional view showing the configuration of a heating roller type fixing device, and FIG. 6 is a diagram showing the configuration of a conventional heating roller. The vertical cross-sectional view shown in FIG. 6A is a graph showing the temperature distribution of the roller corresponding to FIG. 6, and FIG. 7 is a graph showing the temperature change in the paper passing section of the conventional roller. Symbols in the figure: 1... Fixing device, 2... Pressure roller, 3... Roller core, 5... Paper, 6... Toner image, 10... Heat roller, 11... Roller core, 12... Internal heating Element, 13...Gear, 15
... Central portion, 16 ... Paper passing portion, 17 ... Drive side end, 18 ... Support side end.
Claims (1)
化しないローラの内部に加熱源を設け、該加熱ロ
ーラを構成するローラ本体の中央部分を肉厚に、
両端部の内側にテーパ部を設けることにより端部
に至る程薄くなるように構成し、該加熱ローラの
中央部分の熱容量を大きくしたことを特徴とする
複写機の定着装置。 In a heating roller type fixing device, a heating source is provided inside a roller whose outer diameter does not change, and the central portion of the roller body that constitutes the heating roller is made thicker.
1. A fixing device for a copying machine, characterized in that a tapered portion is provided inside both end portions so that the thickness becomes thinner toward the end portions, and the heat capacity of the central portion of the heating roller is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17532286U JPS6380577U (en) | 1986-11-17 | 1986-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17532286U JPS6380577U (en) | 1986-11-17 | 1986-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6380577U true JPS6380577U (en) | 1988-05-27 |
Family
ID=31114538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17532286U Pending JPS6380577U (en) | 1986-11-17 | 1986-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6380577U (en) |
-
1986
- 1986-11-17 JP JP17532286U patent/JPS6380577U/ja active Pending