JPH01284869A - Environment stabilizing device for electrophotographic copying machine - Google Patents
Environment stabilizing device for electrophotographic copying machineInfo
- Publication number
- JPH01284869A JPH01284869A JP63115532A JP11553288A JPH01284869A JP H01284869 A JPH01284869 A JP H01284869A JP 63115532 A JP63115532 A JP 63115532A JP 11553288 A JP11553288 A JP 11553288A JP H01284869 A JPH01284869 A JP H01284869A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- temperature
- heater
- amorphous silicon
- photosensitive body
- 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
- 230000000087 stabilizing effect Effects 0.000 title 1
- 229910021417 amorphous silicon Inorganic materials 0.000 claims abstract description 18
- 108091008695 photoreceptors Proteins 0.000 claims description 26
- 238000005338 heat storage Methods 0.000 claims description 4
- 239000011232 storage material Substances 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims 1
- 239000012188 paraffin wax Substances 0.000 abstract description 8
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 abstract 1
- 238000012546 transfer Methods 0.000 description 9
- 238000012217 deletion Methods 0.000 description 4
- 230000037430 deletion Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910004205 SiNX Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Control Or Security For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、アモルファスシリコン感光体を用いた電子写
真装置の画像流れ防止を目的とした環境安定化装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an environmental stabilization device for preventing image fading in an electrophotographic device using an amorphous silicon photoreceptor.
［従来の技術］
アモルファスシリコン感光体は表面硬度が高く、半導体
レーザー（７７０ｎｍ〜８００ ｎｍ）などの長波長光
に高い感度を示し、しかも繰り返し使用による劣化も殆
ど認められないなど、特に、高速複写機やＬＢＰ （レ
ーザービームプリンター）などの電子写真用感光体とし
て賞用されている。[Prior Art] Amorphous silicon photoreceptors have high surface hardness, exhibit high sensitivity to long wavelength light such as semiconductor lasers (770 nm to 800 nm), and show almost no deterioration due to repeated use, making them especially useful for high-speed copying. It is used as a photoreceptor for electrophotography in machines and LBPs (laser beam printers).
然しながら、かかるアモルファスシリコン感光体を用い
た電子写真装置においては、繰り返し使用により、感光
体表面に帯電器で発生するコロナ生成物の付着などによ
り、湿度に敏感となり水分を吸着しやすくなり、その結
果として表面抵抗が下かり表面電荷が横方向に移動し、
いわゆる画像流れを生ずるといった欠点を有している。However, with repeated use, electrophotographic devices using such amorphous silicon photoreceptors become sensitive to humidity due to the adhesion of corona products generated by chargers on the surface of the photoreceptor, and as a result, they tend to absorb moisture. As the surface resistance decreases and the surface charge moves laterally,
This method has the disadvantage of causing so-called image deletion.
［発明か解決しようとしている問題点］一方、半導体特
性を強く表わすアモルファスシリコン感光体において、
帯電能と表面温度において明確な相関関係を有し、一般
に１〜６ ｖｏｌｔ／ｄｅｇ程度温度の上昇とともに帯
電能は低下して行くといった減少か認められている。[Problem to be solved by the invention] On the other hand, in an amorphous silicon photoreceptor that strongly exhibits semiconductor characteristics,
There is a clear correlation between charging ability and surface temperature, and it is generally recognized that charging ability decreases as the temperature increases by about 1 to 6 volts/deg.
ＦｉｌｅＮｏ８３３２１０など。File No.833210 etc.
前者画像流れについて、このような画像流れを防止する
為に、感光体表面にａ −Ｓ ｉ ｘ・ＣＩ −ｘ 、
ａ −Ｓ ｉ Ｎ ｘなどの表面層を設けることが提
案されているか、感光体表面にかかる処理を行なっても
、画像流れを完全に防止するに至っていないのか現状で
ある。したかって、■アモルファスシリコン感光体の内
面に加熱ヒータを設は感光体表面を加温乃至加熱するこ
とにより、■アモルファスシリコン感光体の表面を研磨
・しゆうさつ手段により付着物をかきおとすことにより
上記画像流れを防止している。また後者温度特性の補償
については、サーミスタやサーモスイッチによりコント
ロールされたヒーターなどの温度調節手段により±１〜
２ ｄｅｇに保つのか一般的である。Regarding the former image deletion, in order to prevent such image deletion, a −S i x・CI −x,
At present, it has been proposed to provide a surface layer such as a-SiNx, or even if such treatment is performed on the surface of the photoreceptor, it has not been possible to completely prevent image deletion. Therefore, by installing a heater on the inner surface of the amorphous silicon photoconductor and heating the surface of the photoconductor, ■ scraping off the deposits by polishing or scrubbing the surface of the amorphous silicon photoconductor. This prevents the above-mentioned image blurring. Regarding the compensation of the latter temperature characteristics, temperature adjustment means such as heaters controlled by thermistors and thermoswitches are used to compensate for the temperature characteristics from ±1 to
It is common to keep it at 2 degrees.
以上２つの要素から、いわゆる感光体ヒーターをもちい
ることかアモルファスシリコン感光体をもちいる電子写
真装置において一般的となっている。然しなから前述の
ように、アモルファスシリコン感光体は高速複写機に特
によく用いられており、近年の１００ｖ、１５Ａで使用
したいといったユーザーの要求において、このヒーター
に要するおおむね３０〜６０Ｗの電力は、設計上・電気
規格上困難な問題であった。Due to the above two factors, it is common to use a so-called photoreceptor heater in electrophotographic apparatuses that use an amorphous silicon photoreceptor. However, as mentioned above, amorphous silicon photoreceptors are particularly commonly used in high-speed copying machines, and in recent years users have requested to use them at 100V and 15A, and the power required for this heater is approximately 30 to 60W. This was a difficult problem in terms of design and electrical standards.
即ち本発明の目的は、感光体としてアモルファスシリコ
ン感光体をもちいた電子写真装置において、画像流れの
問題と、消費電力の低減とを同時に解決した電子写真装
置を提供することにある。That is, an object of the present invention is to provide an electrophotographic apparatus using an amorphous silicon photoreceptor as a photoreceptor, which solves the problem of image blurring and reduces power consumption at the same time.
［問題点を解決するための手段］
本発明によれば、アモルファスシリコン感光体の内部に
蓄電装置、たとえばコンデンサーや蓄電池乃至蓄熱材、
例えば感光体ヒーターにより溶融されたパラフィンバッ
クを配置し、電力を大量（６００〜１０００ ＫＷ）に
消費する、定着器動作時において感光体の表面温度を本
体主電源以外のエネルギー源により保持することを特徴
とする電子写真装置が提供される。[Means for Solving the Problems] According to the present invention, a power storage device, such as a capacitor, a storage battery, or a heat storage material, is provided inside the amorphous silicon photoreceptor.
For example, a paraffin bag melted by a photoconductor heater is placed, and the surface temperature of the photoconductor is maintained by an energy source other than the main power supply during fuser operation, which consumes a large amount of power (600 to 1000 KW). An electrophotographic apparatus with features is provided.
［実施例］
以下に本発明の実施例を図面により説明する。第１図は
本発明を実施した電子写真装置の断面図である。[Examples] Examples of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an electrophotographic apparatus embodying the present invention.
実施例−１
第１図の１は主帯電器、２は画像露光、３は現像器、４
は転写前帯電器であり５は転写紙、６は転写帯電器、７
は分離帯電器であり、８はクリーナー、９は前露光用Ｌ
ＥＤアレイ、１０はアモルファスシリコン感光体ドラム
であり、１１はドラムヒーター、１２は１１のドラムヒ
ーターの温度制御を行なう温度制御基板である。１３は
１２の温度制御基板に電力を供給するための蓄電池であ
る。１４は転写紙搬送ベルトであり、１５は定着器、１
５−１は定着ローラーである。１５−２はサーミスター
、１５−３は定着ローラー用ヒーターである。Example-1 In Fig. 1, 1 is the main charger, 2 is the image exposure device, 3 is the developing device, and 4 is the main charger.
is a pre-transfer charger, 5 is a transfer paper, 6 is a transfer charger, and 7 is a transfer charger.
is a separation charger, 8 is a cleaner, and 9 is a pre-exposure L.
In the ED array, 10 is an amorphous silicon photosensitive drum, 11 is a drum heater, and 12 is a temperature control board for controlling the temperature of the 11 drum heaters. 13 is a storage battery for supplying power to the temperature control board 12. 14 is a transfer paper conveying belt, 15 is a fixing device, 1
5-1 is a fixing roller. 15-2 is a thermistor, and 15-3 is a fixing roller heater.
ＮＰ−７５５０（製造元：キャノン■）を改造した第１
図の様な電子写真装置を用い本発明の実験を行なった。The first modified NP-7550 (manufacturer: Canon ■)
Experiments of the present invention were conducted using an electrophotographic apparatus as shown in the figure.
まず第１図１０のアモルファスシリコン感光体は第３図
の様な温度特性（５ｖｏｌｔ／ｄｅｇ）のものを使用し
て１５−２のサーミスターにより１５−１の定着ローラ
ーの温度を第４図の様に第１図１５−３のヒーターのＯ
Ｎ、ｏｆｆをしながら１８０℃〜２００℃に温調を１０
〜９０秒周期で行なう。１５−３の定着ローラー用ヒー
ター（８５０ｗ）のＯＮ時には、本体より１２の温度制
御基板へ送られていた電源を断ち１３の蓄電池（小形シ
ール鉛蓄電池（１２ｖ、２．７Ａｈ）：机下製）の電源
に変換して１１のドラムヒーターでｌＯのアモルファス
シリコン感光体の温度を４２±２″にコントロールしな
がら温度１５℃湿度１０％の環境下により温度特性によ
る電位シフトに伴う画像カブリや温度３２°Ｃ湿度８０
％の環境下により画像流れを連続通紙の耐久テストを３
０００枚／日のモードで１週間行なったか両環境下にお
いても良好な画質の画像か得られた。又第２図は第１図
１２の温度制御基板の回路図でありエヘ１２ｖの電力か
供給され■から第１図１１のドラムヒーターへ電力が供
給される。■は第１図１°ｌのドラムヒーターに組み込
まれているサーミスターに接続され、第４図に示した定
着器の温調ヒーターのＯＮの信号で本体電源から１３の
蓄電池の電源に変換される。First, the amorphous silicon photoreceptor shown in Fig. 10 has temperature characteristics (5 volts/deg) as shown in Fig. 3, and the temperature of the fixing roller 15-1 is controlled by the thermistor 15-2 as shown in Fig. 4. Similarly, the O of the heater in Figure 1 15-3
Adjust the temperature from 180℃ to 200℃ for 10 minutes while turning off the N.
Do this at intervals of ~90 seconds. When the fuser roller heater (850w) of 15-3 is turned on, the power sent from the main body to the temperature control board of 12 is cut off and the storage battery of 13 (small sealed lead acid battery (12V, 2.7Ah) made under the desk) is turned on. While controlling the temperature of the amorphous silicon photoreceptor of 10 to 42±2'' using 11 drum heaters, image fogging due to potential shift due to temperature characteristics and temperature 32. °C humidity 80
Durability test of continuous paper feeding with image blurring under 3% environment
Images of good image quality were obtained under both environments. FIG. 2 is a circuit diagram of the temperature control board shown in FIG. 12, and 12V of power is supplied from E to the drum heater shown in FIG. 11. ■ is connected to the thermistor built into the drum heater of 1°l in Fig. 1, and when the temperature control heater of the fixing unit shown in Fig. 4 is turned ON, the power is converted from the main power supply to the power of the 13 storage batteries. Ru.
実施例−２
実施例−１と同様の特性のドラムを使用し本発明の第５
図の電子写真装置に投入し本体電源より電力を供給し融
点４５°Ｃのパラフィンを使用した１６のパラフィンバ
ックを１１のドラムヒーターにより４６°Ｃで加熱し実
施例−１と同様に１５−３の定着ローラー用ヒーターの
ＯＮ時には本体からの電力供給をストップして１６のパ
ラフィンバック内のパラフィンの凝固熱によりｌＯのア
モルファスシリコン感光体の温度を４２±２°Ｃに安定
させる以外は実施例−１と同様の実験を行なったか実施
例−１と同様の効果が認められた。Example-2 Using a drum with the same characteristics as in Example-1, the fifth embodiment of the present invention was prepared.
16 paraffin bags made of paraffin with a melting point of 45°C were heated to 46°C by a drum heater 11, and 15-3 Example except that when the heater for the fixing roller is turned on, the power supply from the main body is stopped and the temperature of the amorphous silicon photoreceptor of 10 is stabilized at 42 ± 2 ° C by the coagulation heat of the paraffin in the paraffin bag 16. An experiment similar to Example 1 was conducted, and the same effects as in Example 1 were observed.
実施例−３
第１図１５−３の定着ローラー用ヒーターのＯＮ時には
、本体からの電力供給をストップして、実施例−１、実
施例−２の蓄電池や蓄熱材等の本体主電源以外のエネル
ギー源を使用しない事以外は実施例−１、実施例−２と
同様の実験を行なった所温度１５°Ｃ湿度１０％の環境
下ては連続１５０枚目より白地部に画像カブリか発生し
温度３２℃湿度８０％の環境下においては連続１５００
枚目より画像流れか認められた。Example-3 When the heater for the fixing roller shown in Fig. 15-3 is turned on, the power supply from the main body is stopped, and the main power source other than the main power source of the main body, such as the storage battery or heat storage material of Example-1 and Example-2, is turned on. An experiment similar to Example 1 and Example 2 was conducted except that no energy source was used. Under an environment of a temperature of 15°C and a humidity of 10%, image fogging occurred on the white background after the 150th continuous sheet. Continuous 1500 in an environment of temperature 32℃ and humidity 80%
From the first picture, it was noticed that the image was blurred.
実施例−１と実施例−２は組合せても良好な画像を得る
事が可能であり、消費電力の低減も可能となる。Even when Example-1 and Example-2 are combined, it is possible to obtain a good image, and it is also possible to reduce power consumption.
［発明の効果］
以上説明した様に定着器動作°時は蓄電池によりドラム
ヒーターに電力を供給して定着器動作時の電力不足によ
るドラム表面温度の低下を防止したり又感光体ドラム内
に内蔵された蓄熱材により供給される熱により感光体ド
ラムの表面温度を一定に保持したり本体主電源以外のエ
ネルギー源によりドラムの表面温度を一定に保持する事
により画像流れを防止しながら同時に使用電力のピーク
時の消費電力も低減し例えば１００ｖ１５Ａ等のより安
価な使い勝手のよい電力によりコピーを得る事が可能と
なった。[Effects of the Invention] As explained above, when the fuser is operating, power is supplied to the drum heater by the storage battery to prevent the drum surface temperature from decreasing due to insufficient power when the fuser is operating, and the drum heater is built in the photoreceptor drum. The surface temperature of the photoreceptor drum is maintained constant by the heat supplied by the heat storage material, and the surface temperature of the drum is maintained constant by an energy source other than the main power supply of the main unit, thereby preventing image blurring and reducing power consumption at the same time. The power consumption at peak times has also been reduced, making it possible to obtain copies using cheaper and more convenient power, such as 100v15A.
第１図、第５図は夫々本発明を実施した電子写真装置の
断面図、
第２図は温度制御基板の回路図、
第３図は本発明の実験で使用したアモルファスシリコン
感光体の温度特性グラフ、
第４図は定着器ローラー温度と定着器ヒーターＯＮ、ｏ
ｆｆを示す図である。
ｌは主帯電器、２は画像露光、３は現像器、４は転写前
帯電器、５は転写紙、６は転写帯電器、７は分離帯電器
、８はクリーナー、９は前露光用ＬＥＤアレイ、ｌＯは
アモルファスシリコン感光体、１１はドラムヒーター、
１２は温度制御回路基板、１３は蓄電池、１４は転写紙
搬送ベルト、１５は定着器、１５−１は定着ローラー、
１５−２は定着ローラ用サーモスタット、１５−３は定
着ローラ用ヒーター、１６はパラフィンバックFigures 1 and 5 are cross-sectional views of the electrophotographic apparatus implementing the present invention, Figure 2 is a circuit diagram of the temperature control board, and Figure 3 is the temperature characteristics of the amorphous silicon photoreceptor used in the experiments of the present invention. Graph, Figure 4 shows fuser roller temperature and fuser heater ON, o
FIG. 1 is a main charger, 2 is an image exposure device, 3 is a developer, 4 is a pre-transfer charger, 5 is a transfer paper, 6 is a transfer charger, 7 is a separation charger, 8 is a cleaner, 9 is a pre-exposure LED array, IO is an amorphous silicon photoreceptor, 11 is a drum heater,
12 is a temperature control circuit board, 13 is a storage battery, 14 is a transfer paper conveying belt, 15 is a fixing device, 15-1 is a fixing roller,
15-2 is a thermostat for the fixing roller, 15-3 is a heater for the fixing roller, and 16 is a paraffin bag.
Claims (3)
装置において、定着器動作時には感光体の表面温度を本
体主電源以外のエネルギー源により保持することを特徴
とする電子写真装置の環境安定化装置。(1) An environmental stabilization device for an electrophotographic apparatus using an amorphous silicon photoreceptor, characterized in that the surface temperature of the photoreceptor is maintained by an energy source other than the main power source during operation of the fixing device.
電池より供給される電力により感光体の表面温度を保持
することを特徴とする特許請求の範囲第１項記載の電子
写真装置の環境安定化装置。(2) Environmental stabilization of the electrophotographic apparatus according to claim 1, characterized in that the surface temperature of the photoreceptor is maintained by electric power supplied from a storage battery built into the photoreceptor as the energy source. Device.
熱材より供給される熱により、感光体の表面温度を保持
することを特徴とする特許請求の範囲第１項記載の電子
写真装置の環境安定化装置。(3) The environment of the electrophotographic apparatus according to claim 1, wherein the surface temperature of the photoreceptor is maintained by heat supplied from a heat storage material built into the photoreceptor as the energy source. Stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63115532A JPH01284869A (en) | 1988-05-12 | 1988-05-12 | Environment stabilizing device for electrophotographic copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63115532A JPH01284869A (en) | 1988-05-12 | 1988-05-12 | Environment stabilizing device for electrophotographic copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01284869A true JPH01284869A (en) | 1989-11-16 |
Family
ID=14664863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63115532A Pending JPH01284869A (en) | 1988-05-12 | 1988-05-12 | Environment stabilizing device for electrophotographic copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01284869A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006313266A (en) * | 2005-05-09 | 2006-11-16 | Canon Inc | Image forming apparatus |
-
1988
- 1988-05-12 JP JP63115532A patent/JPH01284869A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006313266A (en) * | 2005-05-09 | 2006-11-16 | Canon Inc | Image forming apparatus |
| JP4717504B2 (en) * | 2005-05-09 | 2011-07-06 | キヤノン株式会社 | Image forming apparatus |
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