JPH0457868U - - Google Patents
Info
- Publication number
- JPH0457868U JPH0457868U JP10147990U JP10147990U JPH0457868U JP H0457868 U JPH0457868 U JP H0457868U JP 10147990 U JP10147990 U JP 10147990U JP 10147990 U JP10147990 U JP 10147990U JP H0457868 U JPH0457868 U JP H0457868U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- heat roller
- heater
- set 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
Description
図は本考案の一実施例を示すもので、第１図は
定着制御部の構成を示すブロツク図、第２図はレ
ーザプリンタの構成を示す図、第３図はレーザプ
リンタの回路構成を示すブロツク図、第４図はマ
イクロプロセツサによる電源オン時の加熱定着部
の制御を示す流れ図、第５図乃至第７図はヒート
ローラ表面温度の時間変化とヒータランプ及びモ
ータの動作関係の例を示す図である。
１３……加熱定着器、１５……ヒータランプ、
１６……ヒートローラ、１７……バツクアツプロ
ーラ、１８……サーミスタ（感温素子）、３１…
…マイクロプロセツサ、４３……定着制御部、４
８……モータ。
The figures show one embodiment of the present invention, in which Figure 1 is a block diagram showing the configuration of the fixing control section, Figure 2 is a diagram showing the configuration of the laser printer, and Figure 3 is the circuit configuration of the laser printer. FIG. 4 is a flowchart showing the control of the heat fixing unit by the microprocessor when the power is turned on, and FIGS. 5 to 7 show examples of the relationship between the temporal change in the heat roller surface temperature and the operation of the heater lamp and motor. FIG. 13... Heat fixing device, 15... Heater lamp,
16... Heat roller, 17... Backup roller, 18... Thermistor (temperature sensing element), 31...
... Microprocessor, 43 ... Fixing control section, 4
8...Motor.
Claims (1)
ーラに接触しその接触部位を転写紙が通過するよ
うに位置されたバツクアツプローラからなる加熱
定着器において、前記ヒートローラの表面温度を
検知する感温素子と、この感温素子による検知温
度がトナーが溶着する第１の設定温度以下のとき
は前記ヒータへの通電を行い、第１の設定温度に
達すると前記ヒータへの通電を停止させるヒータ
制御手段と、前記ヒートローラの表面温度が第１
の設定温度よりも低い第２の設定温度に比べて低
い状態から前記ヒータへの通電が開始されたとき
には前記ヒートローラの表面温度が第１の設定温
度に達してから前記ヒータへの非通電によつて前
記ヒートローラの表面温度が第１の設定温度に戻
るまでのオーバシユート期間前記ヒートローラ及
びバツクアツプローラを回転制御してからウオー
ムアツプを終了させ、また前記ヒートローラの表
面温度が第２の設定温度以上の状態から前記ヒー
タへの通電が開始されたときには前記ヒートロー
ラの表面温度が第１の設定温度に達すると前記ヒ
ートローラ及びバツクアツプローラを回転制御す
ることなくウオームアツプを終了させるウオーム
アツプ制御手段を設けたことを特徴とする加熱定
着器の制御装置。 In a heating fixing device consisting of a heat roller containing a heater and a back-up roller positioned such that the transfer paper comes into contact with the heat roller and passes through the contact area, a temperature sensing element detects the surface temperature of the heat roller; , heater control means that energizes the heater when the temperature detected by the temperature sensing element is below a first set temperature at which the toner is fused, and stops energizing the heater when the first set temperature is reached; , the surface temperature of the heat roller is the first
When energization to the heater is started from a state lower than a second set temperature, which is lower than the second set temperature, the heater is not energized until the surface temperature of the heat roller reaches the first set temperature. Therefore, the warm-up is completed after the rotation of the heat roller and the backup roller is controlled during the overshoot period until the surface temperature of the heat roller returns to the first set temperature, and the surface temperature of the heat roller is brought back to the second set temperature. When energization to the heater is started from a state where the temperature is higher than a set temperature, a worm that terminates warm-up without controlling the rotation of the heat roller and backup roller when the surface temperature of the heat roller reaches a first set temperature. A control device for a heat fixing device, characterized in that it is provided with an increase control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10147990U JPH0457868U (en) | 1990-09-26 | 1990-09-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10147990U JPH0457868U (en) | 1990-09-26 | 1990-09-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0457868U true JPH0457868U (en) | 1992-05-18 |
Family
ID=31844965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10147990U Pending JPH0457868U (en) | 1990-09-26 | 1990-09-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0457868U (en) |
-
1990
- 1990-09-26 JP JP10147990U patent/JPH0457868U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6131462B2 (en) | ||
| JPS6344832Y2 (en) | ||
| JPS584167A (en) | Heat fixing roller | |
| JPH04235583A (en) | Temperature controller | |
| JPS6131463B2 (en) | ||
| JPS6364789B2 (en) | ||
| JPH0623912B2 (en) | Image forming device | |
| JP3308732B2 (en) | Fixing device controller | |
| JPS6055372A (en) | Fixing device of copying machine | |
| JPS63261270A (en) | Image forming device | |
| JP2604637B2 (en) | Fixing device | |
| JPS6412387B2 (en) | ||
| JPS5855384Y2 (en) | Heat fixing device in electronic copying machine | |
| JP3004878B2 (en) | Fixing device | |
| JP2644271B2 (en) | Temperature control method for heat roller fixing device | |
| JP2002031983A (en) | Fixing device | |
| JP2536207Y2 (en) | Fixing device | |
| JPH03200184A (en) | Temperature control method for roller type thermal fixing device | |
| JPH0326395B2 (en) | ||
| JPH0212187A (en) | Electrostatic recording device | |
| JPS61188572A (en) | Fixing device | |
| JPH03114861U (en) | ||
| JPS63133177A (en) | Fixing device for copying machine | |
| JP2521989B2 (en) | Heater control device for heat fixing device | |
| JPS6163860A (en) | Dew condensation preventing device of copying machine |