JPS61121468U - - Google Patents
Info
- Publication number
- JPS61121468U JPS61121468U JP565385U JP565385U JPS61121468U JP S61121468 U JPS61121468 U JP S61121468U JP 565385 U JP565385 U JP 565385U JP 565385 U JP565385 U JP 565385U JP S61121468 U JPS61121468 U JP S61121468U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- fixing
- processing means
- reset
- limit value
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
- Control Of Temperature (AREA)
Description
第１図はこの考案の一実施例のブロツク図であ
る。第２図は第１図の動作を説明するための温度
センサの検出温度と時間との関係を示す図である
。第３図はこの実施例の具体的な回路図であり、
特に定着温度設定回路および過温度検出回路の詳
細を示す。第４図はマイコンを用いて定着温度を
制御するこの考案の背景となる従来技術のブロツ
ク図である。
図において、１は定着装置、２は温度センサ、
３は定着温度設定回路、４はマイクロコンピユー
タ、１２は過温度検出回路を示す。
FIG. 1 is a block diagram of one embodiment of this invention. FIG. 2 is a diagram showing the relationship between temperature detected by a temperature sensor and time to explain the operation of FIG. 1. FIG. 3 is a specific circuit diagram of this embodiment,
In particular, details of the fixing temperature setting circuit and overtemperature detection circuit are shown. FIG. 4 is a block diagram of a conventional technique that is the background of this invention in which a microcomputer is used to control the fixing temperature. In the figure, 1 is a fixing device, 2 is a temperature sensor,
3 is a fixing temperature setting circuit, 4 is a microcomputer, and 12 is an overtemperature detection circuit.
Claims (1)
するための温度検出手段、 前記温度検出手段の出力に基づいて前記加熱手
段を制御するための処理手段、 前記温度検出手段による検出温度が予め定める
上限値を超えたとき、前記処理手段をリセツトさ
せるリセツト手段、および 前記温度検出手段による検出温度が予め定める
下限値以下になつたとき、前記処理手段を自動復
帰させる手段を備える、電子複写機。 ２ 前記処理手段はリセツト入力端子を有し、前
記リセツト手段は第１のレベルの信号を前記処理
手段の前記チセツト入力端子に与え、 前記自動復帰手段は前記第１のレベルとは異な
る第２のレベルの信号を前記処理手段の前記リセ
ツト入力端子に与える、実用新案登録請求の範囲
第１項記載の電子複写機。 ３ 前記自動復帰手段は、前記下限値を定着に適
した予め定める温度範囲よりも高い温度に設定す
るための手段を有し、 前記自動復帰手段は、前記下限値を定着に適し
た予め定める温度範囲よりも低い温度に設定する
ための手段を有する、実用新案登録請求の範囲第
１項または第２項記載の電子複写機。[Claims for Utility Model Registration] (1) A heating means included in a fixing means, a temperature detecting means for detecting the temperature during the fixing operation of the fixing means, and a method for controlling the heating means based on the output of the temperature detecting means. a processing means for controlling, a reset means for resetting the processing means when the temperature detected by the temperature detection means exceeds a predetermined upper limit value, and a reset means for resetting the processing means when the temperature detected by the temperature detection means falls below a predetermined lower limit value. An electronic copying machine comprising means for automatically returning the processing means when: 2. The processing means has a reset input terminal, the reset means applies a first level signal to the reset input terminal of the processing means, and the automatic return means has a second level signal different from the first level. 2. The electronic copying machine according to claim 1, wherein a level signal is applied to the reset input terminal of the processing means. 3. The automatic return means has means for setting the lower limit value to a temperature higher than a predetermined temperature range suitable for fixing, and the automatic return means sets the lower limit value to a predetermined temperature range suitable for fixing. The electronic copying machine according to claim 1 or 2, which has means for setting the temperature to a temperature lower than the range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP565385U JPH0310527Y2 (en) | 1985-01-18 | 1985-01-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP565385U JPH0310527Y2 (en) | 1985-01-18 | 1985-01-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61121468U true JPS61121468U (en) | 1986-07-31 |
| JPH0310527Y2 JPH0310527Y2 (en) | 1991-03-15 |
Family
ID=30482355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP565385U Expired JPH0310527Y2 (en) | 1985-01-18 | 1985-01-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0310527Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01142584A (en) * | 1987-11-27 | 1989-06-05 | Minolta Camera Co Ltd | Image forming device |
| JPH01259391A (en) * | 1988-04-08 | 1989-10-17 | Minolta Camera Co Ltd | Image forming device |
-
1985
- 1985-01-18 JP JP565385U patent/JPH0310527Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01142584A (en) * | 1987-11-27 | 1989-06-05 | Minolta Camera Co Ltd | Image forming device |
| JPH01259391A (en) * | 1988-04-08 | 1989-10-17 | Minolta Camera Co Ltd | Image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0310527Y2 (en) | 1991-03-15 |
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