JPS62189487A - Electrophotographic device - Google Patents
Electrophotographic deviceInfo
- Publication number
- JPS62189487A JPS62189487A JP61029888A JP2988886A JPS62189487A JP S62189487 A JPS62189487 A JP S62189487A JP 61029888 A JP61029888 A JP 61029888A JP 2988886 A JP2988886 A JP 2988886A JP S62189487 A JPS62189487 A JP S62189487A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- temperature sensor
- temperature
- protective layer
- layer
- 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
- 239000011241 protective layer Substances 0.000 claims abstract description 19
- 239000010410 layer Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000010030 laminating Methods 0.000 claims abstract description 3
- 108091008695 photoreceptors Proteins 0.000 claims description 46
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 13
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
- G03G15/5045—Detecting the temperature
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G5/00—Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/02—Charge-receiving layers
- G03G5/04—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
- G03G5/08—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic
- G03G5/082—Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic and not being incorporated in a bonding material, e.g. vacuum deposited
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00025—Machine control, e.g. regulating different parts of the machine
- G03G2215/00071—Machine control, e.g. regulating different parts of the machine by measuring the photoconductor or its environmental characteristics
- G03G2215/00084—Machine control, e.g. regulating different parts of the machine by measuring the photoconductor or its environmental characteristics the characteristic being the temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Photoreceptors In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は接触式温度センサーにより非晶質シリコン感光
体の温度、１！Ｉ整を正確に行なうことのできる電子写
真装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention uses a contact temperature sensor to measure the temperature of an amorphous silicon photoreceptor, 1! The present invention relates to an electrophotographic apparatus that can accurately perform I alignment.
従来から電子写真感光体の感光体層にはＳｓ、ＣｄＳ
、 ＺｎＯ等の無機光導電性材料、ポリビニルカルバゾ
ール等の有機半導体を使用した単層型又は積層型の有機
光導電性材料が広く使用されていた。Conventionally, Ss and CdS have been used in the photoreceptor layer of electrophotographic photoreceptors.
Single-layer or laminated organic photoconductive materials using inorganic photoconductive materials such as ZnO and organic semiconductors such as polyvinylcarbazole have been widely used.
近年、非晶質シリコン系半導体を光導電性材料として使
用した電子写真感光体が開発されている。この感光体は
、機械的耐久性、耐熱性、耐湿性、耐コロナイオン性、
等において優れ、しかも長波長側の光に感度を有し、感
度そのものも良好であり、更には毒性も全くないため電
ｆ写真用の感光層として注目されている。In recent years, electrophotographic photoreceptors using amorphous silicon-based semiconductors as photoconductive materials have been developed. This photoreceptor has mechanical durability, heat resistance, moisture resistance, corona ion resistance,
In addition, it is sensitive to light on the long wavelength side, has good sensitivity, and has no toxicity at all, so it is attracting attention as a photosensitive layer for electrophotography.
非晶質シリコンを感光層とする電子写真感光体は、所定
の特性を得るため、あるいは適用される電子写真プロセ
スの種類に応じて種々の構成をとる。その代表的な構成
として、支持体上に光導電性の感光層が形成された構成
あるいは更にその表面に保護層が積層された構成が広く
知られている。このような構成をした感光体は、最も一
般的な電子写真プロセス、即ち帯電、画像露光、現像更
に必要に応じて為される転写と続くプロセスによる画像
形成に用いられる。Electrophotographic photoreceptors having amorphous silicon as a photosensitive layer have various configurations in order to obtain predetermined characteristics or depending on the type of electrophotographic process to which they are applied. As a typical structure, a structure in which a photoconductive photosensitive layer is formed on a support, or a structure in which a protective layer is further laminated on the surface of the support is widely known. A photoreceptor having such a structure is used in the most general electrophotographic process, that is, in image formation by charging, image exposure, development, and, if necessary, transfer and subsequent processes.
この様な、支持体上に感光層等が構成された感光体は、
その表面温度により電子写真特性１例えば画像濃度が左
むされ、また使用環境の変化により、例えば常温常湿（
２３℃ ６０％）から高温高湿（３０℃ ８０％）に変
化することにより、感光体表面が露結して良好な画像が
得られない。従って、これを防止するため感光体表面近
傍またはその内部に設けられた熱源により加熱する方法
や熱定着装置から熱風を感光体に送風する方法等の加熱
法により、感光体表面を加熱し、その際サーそスタット
等の公知の温度調節手段を使用して感光体の温度調節を
行なうことは広く知られている。しかしながら、従来こ
れらの温度調整手段は、可動する感光体によって破壊さ
れたり摩耗を受けないように感光体の近傍に設置されて
いたために、感光体の正確な温度・測定ひいてはその温
度調整ができなかった。そのため、得られる電子写真の
画像は、画像濃度が十分均一でない等の欠点を有するこ
とが少なくなかった。Such a photoreceptor with a photosensitive layer etc. formed on a support is
Electrophotographic properties 1, such as image density, are affected by the surface temperature, and changes in the usage environment, such as normal temperature and humidity (
Due to the change from 23° C. (60%) to high temperature and high humidity (30° C., 80%), dew condensation occurs on the surface of the photoreceptor, making it impossible to obtain a good image. Therefore, in order to prevent this, the surface of the photoreceptor is heated by a heating method such as a method of heating with a heat source installed near or inside the photoreceptor surface, or a method of blowing hot air onto the photoreceptor from a heat fixing device. It is widely known to control the temperature of a photoreceptor using a known temperature control means such as a thermostat. However, in the past, these temperature adjustment means were installed near the photoreceptor so as not to be damaged or abraded by the moving photoreceptor, making it impossible to accurately measure and adjust the temperature of the photoreceptor. Ta. Therefore, the resulting electrophotographic images often have drawbacks such as insufficiently uniform image density.
本発明は以上の問題点に鑑みなされたものであり、その
目的は感光体表面の十分正確な温度測定ができ、結果と
して極めて高品質の電子写真を得ることのできる電子写
真装置を提供することにある。The present invention has been made in view of the above problems, and its purpose is to provide an electrophotographic apparatus that can measure the temperature of the surface of a photoreceptor with sufficient accuracy and, as a result, can obtain extremely high quality electrophotographs. It is in.
（問題点を解決するための手段〕
上記目的達成可能な本発明は、支持体上に、非晶質シリ
コンを主体とする感光層と、非晶質炭化ケイ素を主体と
する保護層とが順次Ｍ層されて成る感光体と、該感光体
表面の温度を測定する温度センサーと、該温度センサー
の指標により感光体表面の温度を調整する温調手段とｔ
有して成る電子写真装置において、該保３舊層の厚さが
０．２μ以上２．０μｓ以下であり、該温度センサーの
表面が、摩擦係数が小さく、摺動により摩耗しにくい材
質により形成または覆われ、且つ該温度センサーが感光
体の保護層表面に接触されていることを特徴とする電子
写真装置である。(Means for Solving the Problems) The present invention, which can achieve the above-mentioned object, has a photosensitive layer mainly composed of amorphous silicon and a protective layer mainly composed of amorphous silicon carbide, which are sequentially formed on a support. A photoreceptor formed of an M layer, a temperature sensor that measures the temperature of the surface of the photoreceptor, and a temperature control means that adjusts the temperature of the surface of the photoreceptor using an index of the temperature sensor.
In the electrophotographic device, the thickness of the protective layer is 0.2 μm or more and 2.0 μs or less, and the surface of the temperature sensor is made of a material that has a small coefficient of friction and is not easily abraded by sliding. or covered, and the temperature sensor is in contact with the surface of the protective layer of the photoreceptor.
本発明における実施例を図面を用いて詳細に説明する。Embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本発明の電子写真装置の一実施例における感光
体周辺部を示す模式断面図である。FIG. 1 is a schematic cross-sectional view showing the peripheral portion of a photoreceptor in an embodiment of the electrophotographic apparatus of the present invention.
この電子写真装置は、回転可能な支持体ｌａ上に、非晶
質シリコンを主体とする感光層１ｂ、非晶質炭化ケイ素
を主体とする保護層１ｃが順次積層されて成る感光体１
と、その下方に設置されたヒーター２と、保護層１ｃの
表面に接触するように不図示の機械的手段により固定さ
れた温度センサー３を有する。This electrophotographic apparatus includes a photoreceptor 1 which is formed by sequentially laminating a photoreceptor layer 1b mainly made of amorphous silicon and a protective layer 1c mainly made of amorphous silicon carbide on a rotatable support la.
, a heater 2 installed below the heater 2, and a temperature sensor 3 fixed by mechanical means (not shown) so as to be in contact with the surface of the protective layer 1c.
温度センサー３は、感光体１の回転により、円柱状をし
た感光体１周壁の全周に渡って温度を検知可能となって
いる。The temperature sensor 3 is capable of detecting the temperature over the entire circumference of the cylindrical circumferential wall of the photoreceptor 1 as the photoreceptor 1 rotates.
温度センサー３とヒーター２との間には、温度センサー
３の示す指標によりヒーター２の温度を調整することの
できる温度制御器（不図示）が備えられている。温度セ
ンサー３と感光体１との間には、これらが摺動した際に
両者の摩耗が十分防止できるように、摩擦係数が小さく
、摺動しても摩耗しにくく且つ、耐熱性の高い材料、例
えばテフロン、ポリイミド、ポリエチレンから成るテー
プ状の部材４が介在させである。本実施例ではテープ状
の部材４は、温度センサー３を包み込み、その表面を覆
うように備えられている。A temperature controller (not shown) is provided between the temperature sensor 3 and the heater 2, which can adjust the temperature of the heater 2 based on the index indicated by the temperature sensor 3. Between the temperature sensor 3 and the photoreceptor 1, a material with a low coefficient of friction, resistant to wear even when sliding, and highly heat resistant is used to sufficiently prevent wear between the two when they slide. A tape-shaped member 4 made of, for example, Teflon, polyimide, or polyethylene is interposed. In this embodiment, the tape-shaped member 4 is provided so as to wrap around the temperature sensor 3 and cover its surface.
保護層１ｃは、非晶質炭化ケイ素を主体とする層で、所
望により各種のドーピング成分を混入させてもよいが、
その表面のビッカース硬度（ＪＩＳ Ｂ７７７４による
）を、通常、１０００ｋｇ／ｍｔｎ’以上にするのがよ
い。本発明において、保護層ＩＣの膜厚を０．２μｓ以
上にするのは、これ以下では感光体１と温度センサー３
とが摺動することにより感光体１表面に摩耗が生じた場
合に、得られる画像の劣化が著しくなり、電子写真装置
が実用に適さなくなるからである。保護層ＩＣが２．０
μ以上の膜厚であると、その成膜に時間がかかり過ぎる
ため実用的でない。The protective layer 1c is a layer mainly composed of amorphous silicon carbide, and various doping components may be mixed therein as desired.
The Vickers hardness (according to JIS B7774) of the surface is usually 1000 kg/mtn' or more. In the present invention, the film thickness of the protective layer IC is set to 0.2 μs or more because the thickness of the photoreceptor 1 and the temperature sensor 3 are smaller than 0.2 μs.
This is because if the surface of the photoreceptor 1 is abraded due to sliding, the resulting image will deteriorate significantly, making the electrophotographic apparatus unsuitable for practical use. Protective layer IC is 2.0
If the film thickness is more than μ, it is not practical because it takes too much time to form the film.
温度センサー３には公知の温度センサーを使用される。A known temperature sensor is used as the temperature sensor 3.
例えば、サーモスタットなどが利用できる。For example, a thermostat can be used.
温度センサー３の表面は、テープ状の部材４が介在させ
てない場合には、テープ状の部材４の材料と同じ要件を
満たす材料により、形成あるいは被覆されているのか好
ましい。該表面はテープ状の部材４が介在させである場
合にも摺動によっても摩耗しにくい材料で形成あるいは
被覆した方がよい。If the tape-like member 4 is not interposed, the surface of the temperature sensor 3 is preferably formed or covered with a material that satisfies the same requirements as the material of the tape-like member 4. It is preferable that the surface is formed or coated with a material that is resistant to wear even when the tape-like member 4 is interposed therebetween or when sliding.
支持体１ａは、金属、セラミックス、耐熱性樹脂表面に
導電層を積層した公知の支持体が使用でき、その形状に
ついても特に制限はない。As the support 1a, a known support in which a conductive layer is laminated on the surface of metal, ceramics, or heat-resistant resin can be used, and there is no particular restriction on its shape.
感光層１ｂは非晶質シリコンを主体とするが、他の成分
を混入させてもよい。The photosensitive layer 1b is mainly composed of amorphous silicon, but other components may be mixed therein.
支持体１ａの下方に設けられたヒーター２に代表される
、温度センサー３の指標により感光体１の温度を調整す
る温調手段は、従来電子写真装置に用いられたものと同
様なものであり、ヒーター２の代わりに、例えば感光体
表面に熱風を送る装置が使用できる。The temperature control means for adjusting the temperature of the photoreceptor 1 based on the index of the temperature sensor 3, represented by the heater 2 provided below the support 1a, is similar to that used in conventional electrophotographic devices. , instead of the heater 2, for example, a device that sends hot air to the surface of the photoreceptor can be used.
本発明の電子写真装置では、熱伝導性が必ずしも高くな
い感光体ｌの支持体ｌａ側にではなく、保護層１ｃの表
面に直接温度センサー３が接触しているので、温度セン
サー３により検知した温度と、感光体１表面の実際の温
度との間にずれがなく、結果として温度ｆｆＩ（Ｉ御手
段により感光体１表面を正確に温度設定可能となる。従
って、該電子写真装置によりて、画像濃度が極めて均一
である等の長所を有する、良好な品質の電子写真が得ら
れる。In the electrophotographic apparatus of the present invention, the temperature sensor 3 is in direct contact with the surface of the protective layer 1c, rather than with the support la side of the photoreceptor l, which does not necessarily have high thermal conductivity. There is no deviation between the temperature and the actual temperature of the surface of the photoreceptor 1, and as a result, it is possible to accurately set the temperature of the surface of the photoreceptor 1 using the temperature ffI (I control means. Therefore, with the electrophotographic apparatus, Electrophotographs of good quality can be obtained with advantages such as extremely uniform image density.
第１図に示した感光体、温度センサー、ヒーター等を有
する電子写真装置を３２℃、８５％の環境中に設置し、
温度センサー、温度調整手段により感光体表面を４５℃
に制御しつつへ４サイズの紙に対して電子写真による画
像を形成し、画像の品質と、感光体の耐久性を調べた。An electrophotographic device having a photoreceptor, temperature sensor, heater, etc. shown in Fig. 1 was installed in an environment of 32°C and 85%,
Temperature sensor and temperature adjustment means keep the surface of the photoreceptor at 45℃
Electrophotographic images were formed on four sizes of paper under controlled conditions, and the quality of the images and the durability of the photoreceptor were examined.
なお、電子写真装置では、テープ状の部材はテフロンテ
ープ（商品名、ニドクロンＮｏ、９０３ ：日東電工社
製）とし、感光体の保護層は、成分：ＳｉＣ：Ｈ１非晶
質Ｓｉ（：：Ｈ１厚さ＝ １μとし、感光層は、成分：
非晶質Ｓｉ：Ｈ（Ｈはドーピング剤）とし、電を写真装
置本体はキャノン製ＮＰ−９０３０とした。In the electrophotographic device, the tape-like member is Teflon tape (trade name, Nidoclone No. 903, manufactured by Nitto Denko Corporation), and the protective layer of the photoreceptor is composed of components: SiC:H1 amorphous Si (::H1). The thickness is 1μ, and the photosensitive layer has the following components:
Amorphous Si:H (H is a doping agent) was used, and the main body of the photographic device was Canon NP-9030.
連続１０万枚の耐久テストを行ない、画像上に濃度ムラ
、縦筋などが発生してないことを確認した。飯な、ドラ
ム表面を顕微鏡により外見チェックしたが、キズ、けず
れなどは発生していなかった。We conducted a durability test of 100,000 continuous sheets and confirmed that there were no density unevenness or vertical streaks on the images. I checked the appearance of the drum surface using a microscope, and found no scratches or scratches.
（発明の効果〕
以上詳細に説明したように、本発明によって、感光体表
面の正確な温度測定ひいては精密な温度調整ができ、結
果として極めて高い品質の電子写真を得ることのできる
ようになった。(Effects of the Invention) As explained in detail above, the present invention makes it possible to accurately measure the temperature on the surface of the photoreceptor, and also to perform precise temperature adjustment, and as a result, it has become possible to obtain extremely high quality electrophotographs. .
第１図は本発明に係る電子写真装置の一実施例の感光体
周辺部を示す模式断面図である。
１・・・感光体 １ ａ ”−支持体１ｂ・
・・感光層 １ ｃ ”−保護層２・・・ヒー
ター ３・・・温度センサー４・・・テープ状
の部材FIG. 1 is a schematic cross-sectional view showing a peripheral portion of a photoreceptor in an embodiment of an electrophotographic apparatus according to the present invention. 1...Photoreceptor 1a''-Support 1b・
...Photosensitive layer 1 c''-protective layer 2...Heater 3...Temperature sensor 4...Tape-shaped member
Claims (1)
、非晶質炭化ケイ素を主体とする保護層とが順次積層さ
れて成る感光体と、該感光体表面の温度を測定する温度
センサーと、該温度センサーの指標により感光体表面の
温度を調整する温調手段とを有して成る電子写真装置に
おいて、該保護層の厚さが０．２μｍ以上２．０μｍ以
下であり、該温度センサーの表面が、摩擦係数が小さく
、摺動により摩耗しにくい材質により形成または覆われ
、かつ該温度センサーが感光体の保護層表面に接触され
ていることを特徴とする電子写真装置。1) Measure the temperature of a photoreceptor formed by sequentially laminating a photoreceptor layer mainly composed of amorphous silicon and a protective layer mainly composed of amorphous silicon carbide on a support, and the surface of the photoreceptor. In an electrophotographic apparatus comprising a temperature sensor and a temperature control means for adjusting the temperature of the surface of the photoreceptor according to an index of the temperature sensor, the thickness of the protective layer is 0.2 μm or more and 2.0 μm or less, An electrophotographic apparatus characterized in that the surface of the temperature sensor is formed or covered with a material that has a small coefficient of friction and is resistant to wear due to sliding, and the temperature sensor is in contact with the surface of a protective layer of a photoreceptor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61029888A JPS62189487A (en) | 1986-02-15 | 1986-02-15 | Electrophotographic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61029888A JPS62189487A (en) | 1986-02-15 | 1986-02-15 | Electrophotographic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62189487A true JPS62189487A (en) | 1987-08-19 |
Family
ID=12288507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61029888A Pending JPS62189487A (en) | 1986-02-15 | 1986-02-15 | Electrophotographic device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62189487A (en) |
-
1986
- 1986-02-15 JP JP61029888A patent/JPS62189487A/en active Pending
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