JPH0344682A - Electrophotographic recording device - Google Patents
Electrophotographic recording deviceInfo
- Publication number
- JPH0344682A JPH0344682A JP1181181A JP18118189A JPH0344682A JP H0344682 A JPH0344682 A JP H0344682A JP 1181181 A JP1181181 A JP 1181181A JP 18118189 A JP18118189 A JP 18118189A JP H0344682 A JPH0344682 A JP H0344682A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- roller
- time
- surface temperature
- low
- 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
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 11
- 150000002367 halogens Chemical class 0.000 claims abstract description 11
- 230000006866 deterioration Effects 0.000 abstract description 4
- 108091008695 photoreceptors Proteins 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Fixing For Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Control Of Resistance Heating (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は電子写真記録装置に関し、特に周囲温度の検出
を行なう電子写真記録装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrophotographic recording device, and more particularly to an electrophotographic recording device that detects ambient temperature.
従来、この種の電子写真記録装置は、周囲温度の検出を
行っていない。特に、感光体の温度を一定に保つ必要が
ある場合には、ヒータ等により感光体の温度を直接制御
するようにしている。Conventionally, this type of electrophotographic recording apparatus does not detect ambient temperature. In particular, when it is necessary to keep the temperature of the photoreceptor constant, the temperature of the photoreceptor is directly controlled using a heater or the like.
上述した従来の電子写真記録装置は、周囲温度を検出し
ていない。しかるに、感光体の電位特性は低温において
悪化するため、印字品質が低温で悪化するという欠点が
ある。The conventional electrophotographic recording device described above does not detect ambient temperature. However, since the potential characteristics of the photoreceptor deteriorate at low temperatures, there is a drawback that print quality deteriorates at low temperatures.
また、従来の電子写真記録装置において、周囲温度を検
出するための素子を装備したり、あるいは感光体にヒー
タをつけたりすることは出来なくはないが、装置の価格
上昇を・招くという欠点がある。Furthermore, although it is possible to equip a conventional electrophotographic recording device with an element for detecting ambient temperature or attach a heater to the photoreceptor, it has the drawback of increasing the price of the device. .
本発明の目的は、かかる低温時の印字品質を容易且つ安
価に、し＆も自動的に補正できる電子写真シ記録装置を
提供することにある。An object of the present invention is to provide an electrophotographic recording apparatus that can easily and inexpensively correct the print quality at low temperatures and automatically.
本発明の電子写真記録装置は、通電により熱を発生する
ハロゲンランプと、前記ハロゲンランプから生じた熱を
用紙に伝達するヒートローラと、前記ヒートローラの表
面温度を検出するセンサと、前記ヒートローラの表面温
度が電源を入れてからある一定の温度に達するまでの時
間を計測する制御部とを有し、前記一定の温度に達する
までの時間がある一定の時間よりも長い場合に周囲温度
が低いと判断するように構成している。The electrophotographic recording apparatus of the present invention includes a halogen lamp that generates heat when energized, a heat roller that transfers the heat generated from the halogen lamp to paper, a sensor that detects the surface temperature of the heat roller, and a sensor that detects the surface temperature of the heat roller. and a control unit that measures the time it takes for the surface temperature of the device to reach a certain temperature after the power is turned on, and when the time it takes for the surface temperature to reach the certain temperature is longer than the certain certain time, the ambient temperature It is configured so that it is judged to be low.
次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を示す電子写真記録装置の斜
視図である。FIG. 1 is a perspective view of an electrophotographic recording apparatus showing an embodiment of the present invention.
第１図に示すように、本実施例は通電により熱を発生す
るハロゲンランプ１と、ハロゲンランプ１により発せら
れた熱を図示していない用紙に伝えるヒートローラ２と
、ヒートローラ２の表面温度を検出するセンサ３と、ヒ
ートローラ２に圧力を加えるプレッシャローラ４と、セ
ンサ３の出力によりハロゲンランプ１の通電を制御し且
つヒートローラ２の表面温度を一定に保つ制御部５とを
有している０図示していないトナーを転写された用紙が
表面温度を一定に保たれたヒートローラ２及びプレッシ
ャローラ４の間を通過すると、ハロゲンランプ１からの
熱によりトナーは用紙に定着される、この電子写真記録
装置においては、電源スィッチをオンにすると、ヒート
ローラ２の表面温度をある一定温度まで上昇させるが、
このビートローラ２の表面温度が変化する様子を次に説
明する。As shown in FIG. 1, this embodiment includes a halogen lamp 1 that generates heat when energized, a heat roller 2 that transfers the heat generated by the halogen lamp 1 to a sheet of paper (not shown), and a surface temperature of the heat roller 2. a pressure roller 4 that applies pressure to the heat roller 2; and a control section 5 that controls the energization of the halogen lamp 1 based on the output of the sensor 3 and keeps the surface temperature of the heat roller 2 constant. When the paper to which the toner (not shown) has been transferred passes between the heat roller 2 and the pressure roller 4 whose surface temperature is kept constant, the toner is fixed on the paper by the heat from the halogen lamp 1. In this electrophotographic recording device, when the power switch is turned on, the surface temperature of the heat roller 2 is raised to a certain temperature.
The manner in which the surface temperature of the beat roller 2 changes will be explained next.
第２図は第１図に示すヒートローラの温度変化を表わす
特性図である。FIG. 2 is a characteristic diagram showing temperature changes of the heat roller shown in FIG.
第２図に示すように、ががる温度特性は縦軸がヒートロ
ーラ２の表面温度、横軸は時間をとっている。温度ＴＰ
は定着に必要なヒートローラ２の表面温度、ＴＨは周囲
温度が高温の状態において電源を入れた時のヒートロー
ラ２の表面温度、またＴＬは周囲温度が低温の状態にお
いて電源を入れた時のヒートローラ２の表面温度を表わ
し、時間ｔＨはヒートローラ２の表面温度がＴ １１か
らＴｐに達するまでに要する時間、またｔＬはヒートロ
ーラ２の表面温度がＴＬからＴＦに達するまでに要する
時間をそれぞれ表わしている。かれらｔｌと１Ｈの関係
は当然１Ｌ）１．になる。As shown in FIG. 2, the vertical axis of the temperature characteristic indicates the surface temperature of the heat roller 2, and the horizontal axis indicates time. Temperature TP
is the surface temperature of the heat roller 2 necessary for fixing, TH is the surface temperature of the heat roller 2 when the power is turned on when the ambient temperature is high, and TL is the surface temperature when the power is turned on when the ambient temperature is low. Represents the surface temperature of the heat roller 2, time tH is the time required for the surface temperature of the heat roller 2 to reach from T11 to Tp, and tL is the time required for the surface temperature of the heat roller 2 to reach from TL to TF. each represents. The relationship between their tl and 1H is naturally 1L)1. become.
更に、第１図に示すように、制御部５はヒートローラ２
の表面温度が電源を入れてからＴ、−に達するまでの時
間を計測し、その時間がある決められた時間より長い場
合には、周囲温度が低いと判断する。この制御部５は周
囲温度が低いと判断した場合には、現像バイアス電圧を
変化させるか、又は露光量を増すことにより、低温にお
ける感光体の電位特性の劣化を補正している。Furthermore, as shown in FIG.
The time from when the power is turned on until the surface temperature reaches T, - is measured, and if that time is longer than a certain predetermined time, it is determined that the ambient temperature is low. When the control section 5 determines that the ambient temperature is low, it corrects the deterioration of the potential characteristics of the photoreceptor at low temperatures by changing the developing bias voltage or increasing the exposure amount.
以上説明したように、本発明の電子写真記録装置は、制
御部が電源を入れてからある一定の温度に達するまでの
時間を計測することにより、周囲温度が低いか否かを判
断できるため、低温における感光体の電位特性の劣化を
容易且つ安価にして自動的に補正することができるとい
う効果がある。As explained above, the electrophotographic recording apparatus of the present invention can determine whether or not the ambient temperature is low by measuring the time from when the control unit turns on the power until reaching a certain temperature. This has the advantage that deterioration of the potential characteristics of the photoreceptor at low temperatures can be easily and inexpensively corrected automatically.
第１図は本発明の一実施例を示す電子写真記録装置の斜
視図、第２図は第１図に示すヒートローラの温度変化を
表わす特性図である。
１・・・ハロゲンランプ、２・・・ヒートローラ、３・
・センサ、４・・・プレッシャローラ、５・・・制御部
。FIG. 1 is a perspective view of an electrophotographic recording apparatus showing an embodiment of the present invention, and FIG. 2 is a characteristic diagram showing temperature changes of the heat roller shown in FIG. 1. 1...Halogen lamp, 2...Heat roller, 3.
- Sensor, 4...pressure roller, 5...control unit.
Claims (1)
ンランプから生じた熱を用紙に伝達するヒートローラと
、前記ヒートローラの表面温度を検出するセンサと、前
記ヒートローラの表面温度が電源を入れてからある一定
の温度に達するまでの時間を計測する制御部とを有し、
前記一定の温度に達するまでの時間がある一定の時間よ
りも長い場合に周囲温度が低いと判断することを特徴と
する電子写真記録装置。A halogen lamp that generates heat when energized, a heat roller that transfers the heat generated from the halogen lamp to the paper, a sensor that detects the surface temperature of the heat roller, and a sensor that detects the surface temperature of the heat roller after the power is turned on. It has a control unit that measures the time until it reaches a certain temperature,
An electrophotographic recording apparatus characterized in that the ambient temperature is determined to be low when the time it takes to reach the certain temperature is longer than a certain certain time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1181181A JPH0344682A (en) | 1989-07-12 | 1989-07-12 | Electrophotographic recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1181181A JPH0344682A (en) | 1989-07-12 | 1989-07-12 | Electrophotographic recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0344682A true JPH0344682A (en) | 1991-02-26 |
Family
ID=16096290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1181181A Pending JPH0344682A (en) | 1989-07-12 | 1989-07-12 | Electrophotographic recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0344682A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6138348A (en) * | 1989-12-18 | 2000-10-31 | Polymer Flip Chip Corporation | Method of forming electrically conductive polymer interconnects on electrical substrates |
-
1989
- 1989-07-12 JP JP1181181A patent/JPH0344682A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6138348A (en) * | 1989-12-18 | 2000-10-31 | Polymer Flip Chip Corporation | Method of forming electrically conductive polymer interconnects on electrical substrates |
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