JPH0362374U - - Google Patents
Info
- Publication number
- JPH0362374U JPH0362374U JP12330189U JP12330189U JPH0362374U JP H0362374 U JPH0362374 U JP H0362374U JP 12330189 U JP12330189 U JP 12330189U JP 12330189 U JP12330189 U JP 12330189U JP H0362374 U JPH0362374 U JP H0362374U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- heating means
- detection means
- detecting
- digital signal
- 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 4
- 238000001514 detection method Methods 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Fixing For Electrophotography (AREA)
- Control Of Resistance Heating (AREA)
- Control Of Temperature (AREA)
Description
図面は本考案による複写機の加熱定着装置の１
実施例を示し、第１図は回路構成図、第２図は動
作説明用フローチヤート、第３図はマイコンの入
力電圧とＳＳＲの動作との関係を示す説明図、第
４図は温度特性図である。
１……マイコン、２……Ａ／Ｄ変換器、３……
ヒユーザランプ、７……サーミスタ。
The drawing shows one example of a heat fixing device for a copying machine according to the present invention.
1 is a circuit configuration diagram, FIG. 2 is a flowchart for explaining the operation, FIG. 3 is an explanatory diagram showing the relationship between the input voltage of the microcomputer and the operation of the SSR, and FIG. 4 is a temperature characteristic diagram. It is. 1...Microcomputer, 2...A/D converter, 3...
Hyuser lamp, 7...Thermistor.
Claims (1)
とからなる複写機の加熱定着装置において、 前記ヒートローラの表面温度を検出する温度検
出手段と、該温度検出手段の検出温度に対応した
電圧値をデジタル信号に変換するＡ／Ｄ変換手段
と、前記デジタル信号により前記加熱手段の駆動
後前記表面温度が制御温度より若干低い温度に達
した時に前記加熱手段を所定時間停止すると共に
以後前記表面温度が前記制御温度になるよう前記
加熱手段の駆動を制御するマイクロコンピユータ
とを備えた複写機の加熱定着装置。[Claims for Utility Model Registration] In a heat fixing device for a copying machine that includes a heat roller and a pressure roller that are equipped with heating means, there is provided a temperature detection means for detecting the surface temperature of the heat roller, and a detection means for detecting the temperature detection means. A/D conversion means for converting a voltage value corresponding to temperature into a digital signal; and after driving the heating means using the digital signal, the heating means is stopped for a predetermined time when the surface temperature reaches a temperature slightly lower than the control temperature. and a microcomputer that thereafter controls driving of the heating means so that the surface temperature becomes the control temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12330189U JPH0362374U (en) | 1989-10-20 | 1989-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12330189U JPH0362374U (en) | 1989-10-20 | 1989-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0362374U true JPH0362374U (en) | 1991-06-18 |
Family
ID=31671286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12330189U Pending JPH0362374U (en) | 1989-10-20 | 1989-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0362374U (en) |
-
1989
- 1989-10-20 JP JP12330189U patent/JPH0362374U/ja active Pending
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