JPS593442A - Photoreceptor of copying machine - Google Patents
Photoreceptor of copying machineInfo
- Publication number
- JPS593442A JPS593442A JP11219782A JP11219782A JPS593442A JP S593442 A JPS593442 A JP S593442A JP 11219782 A JP11219782 A JP 11219782A JP 11219782 A JP11219782 A JP 11219782A JP S593442 A JPS593442 A JP S593442A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- conductive layer
- juncture
- layer
- belt
- 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
Classifications
-
- 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 or to electrons; Manufacture thereof; Selection of materials therefor
- G03G5/14—Inert intermediate or cover layers for charge-receiving layers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、複写機の感光体に閏するもので、詳しくはベ
ルト状感光体の接続部の構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photoreceptor for a copying machine, and more particularly to the structure of a connecting portion of a belt-shaped photoreceptor.
第１図はベルト状感光体１を備えた複写機を概念的に示
すものである。FIG. 1 conceptually shows a copying machine equipped with a belt-shaped photoreceptor 1. As shown in FIG.
この複写機においては、ベルト状感光体１の回転に従い
、まず帯電コロ］ヘロン２によってペル１〜状態光体１
面上に均一【こ電荷を（ｊ与し、続いて、フラッシコ露
光３によってベルト状感光体１面上に静電潜像を形成し
、次にこの静電潜像を現像装置４により可視像化し、イ
れによって得られたトナー像を、転写ロール５の押圧に
より例えば図示しない記録紙ロールから供給される記録
紙６に転写する。さらに、この複写機では、この転写の
後に除電：：Ｉ ｌ］ ｌ−Ｃｌン７によってベルト状
感光体１と該ベル（〜状態光体面上の残留（・ナーとを
電気的に中和さけ、しかる後、ベルト状感光体１面上の
残留トナーをファーブラシ８ににより落してペル１〜状
態光体１面上をクリーニングし、さらに除霜フンブ９に
よりベル（〜状態光体１面上を照剣して完全に除電し、
続いて帯電：ＩＯトロン２により再度ベル１〜状感光体
１面上を帯電さける。以下、上記動作を繰り返す。In this copying machine, as the belt-like photoreceptor 1 rotates, the charged rollers] Heron 2 first move the Pel 1 to the state photoreceptor 1.
A uniform charge is applied to the surface, and then an electrostatic latent image is formed on the surface of the belt-like photoreceptor by flash exposure 3, and this electrostatic latent image is then made visible by the developing device 4. The toner image obtained by image formation and erosion is transferred to a recording paper 6 supplied from a recording paper roll (not shown) by the pressure of a transfer roll 5.Furthermore, in this copying machine, after this transfer, static electricity is removed: The residual toner on the belt-like photoreceptor 1 and the surface of the belt-like photoreceptor 1 is electrically neutralized using l-Cl 7, and then the residual toner on the surface of the belt-like photoreceptor 1 is neutralized. is removed by the fur brush 8 to clean the surface of the Pel 1 to state light body 1, and then the defrost fan 9 is used to completely remove the static electricity by shining the light onto the surface of the Bell (to state light body 1).
Subsequently, the surface of the bell-shaped photoreceptor 1 is charged again by the IO tron 2. Thereafter, the above operation is repeated.
第２図（ａ）、（ｂ）は、従来の複写機（こお【プるベ
ルト状感光体１を示すものである。FIGS. 2(a) and 2(b) show a belt-shaped photoreceptor 1 of a conventional copying machine.
このベル（〜状態光体１は、樹脂フィルム１０土に導電
層１１が形成され、さらに該導電層１１の上に感光＠１
２が形成された感光体板を矩形に切断し、その両端面１
ａ、１ａを単に当接させて接続し、ベルト状に形成した
ものである。This bell (~ state light body 1) has a conductive layer 11 formed on a resin film 10, and a photosensitive layer 11 on the conductive layer 11.
The photoreceptor plate on which 2 is formed is cut into a rectangular shape, and both end surfaces 1
A and 1a are simply brought into contact and connected to form a belt shape.
このようにして製作されたベルト状感光体１で・は、そ
の接続部１３の感光特性が悪いため、該接続部が帯電工
程により一度帯電されると、クリーニング工程において
除電ランプにより該接続部を照射しても十分に除電でき
ず、該接続部は帯電されたままとなっていた。In the belt-shaped photoreceptor 1 manufactured in this way, the connection part 13 has poor photosensitivity, so once the connection part is charged in the charging process, the connection part is removed by a static elimination lamp in the cleaning process. Even with irradiation, the charge could not be removed sufficiently, and the connection portion remained charged.
このため、接続部１３は、感光面として使用されない部
分であるにも拘らず、現像工程において現像され、転写
されずにクリーニング１稈に到る。Therefore, although the connecting portion 13 is a portion that is not used as a photosensitive surface, it is developed in the developing process and reaches one cleaning culm without being transferred.
したがって、このようなベルト状感光体１はクリーニン
グ装置に過大な負担をかりるとともに、機内汚れを起す
原因ともなっていた。Therefore, such a belt-shaped photoreceptor 1 places an excessive burden on the cleaning device and also causes dirt inside the device.
また、帯電工程においては、ベルト状感光体１面上を一
様に帯電させるため、コロナ放電等による放電電流が一
定に制御されており、このため、帯電されたままとなっ
ている接続部１３は、再度帯電工程を経ることによって
該接続部の電位がさらに高められ、該接続部では、絶縁
破壊を起す場合があった。In addition, in the charging process, in order to uniformly charge the surface of the belt-shaped photoreceptor 1, the discharge current due to corona discharge etc. is controlled to be constant, so that the connecting portion 13 remains charged. By going through the charging process again, the potential of the connection portion is further increased, and dielectric breakdown may occur at the connection portion.
本発明の目的は、上記実情に鑑みて、クリーニング装置
に負担をかりることなく、まＩこ機内汚れを起すことな
く、さらには接続部で絶縁破壊を起η゛ことの４Ｔい複
写機にお【ノる感光体を提供りることにある。In view of the above circumstances, it is an object of the present invention to provide a 4T copier without placing a burden on the cleaning device, without causing dirt inside the machine, and furthermore, without causing dielectric breakdown at the connection parts. [Our goal is to provide a photoreceptor that can be used.]
本発明では、少なくとも感光体の接続部−上面に導電層
をＡ−バーコーディングするとともに、このオーバｍ−
１−ディングした導電層と感光体内の導電層とを電気的
に接続することによって、感光体の接続部におりる帯電
を可及的に小さくするようにしている。In the present invention, a conductive layer is A-bar-coded at least on the top surface of the connection portion of the photoreceptor, and this over-m-
By electrically connecting the conductive layer that has been bonded to the conductive layer within the photoconductor, the charge that falls on the connection portion of the photoconductor is minimized as much as possible.
以下、本発明に係る複写機にお（プる感光体について、
添付図面に示した一実施例を参照しながら詳細に説明づ
る。Hereinafter, regarding the photoconductor of the copying machine according to the present invention,
A detailed description will be given with reference to an embodiment shown in the accompanying drawings.
第２図（ａ ）、（ｂ ）、（Ｃ）は本発明に係る複写
機におけるベルト状感光体を示づものである。FIGS. 2(a), 2(b), and 2(C) show a belt-shaped photoreceptor in a copying machine according to the present invention.
このベルト状感光体２１は、樹脂フィルム２２上に導電
層２３を形成し、さらに該導電層上に感光層２４を形成
した感光体板からなっている。また、このベルト状感光
体２１は、この感光体板を矩形に切断して、その両端面
２１ａ 、２１ａを当接させるとともにこの両端面２１
ａ 、２１ａを１７いに溶着しベルト状にしたものであ
る。特に接続部２５の上面には蒸着あるいは塗ｆｌｉ等
により導電層２６を形成している。また、この導電層２
６は、その端部２６ａ、２６ａがペル１〜状態光体２１
内の導電１１２３と電気的に接続している。The belt-shaped photoreceptor 21 is composed of a photoreceptor plate in which a conductive layer 23 is formed on a resin film 22, and a photosensitive layer 24 is further formed on the conductive layer. Further, the belt-shaped photoreceptor 21 is obtained by cutting the photoreceptor plate into a rectangular shape, and bringing the both end surfaces 21a, 21a into contact with each other.
a, 21a are welded together into a belt shape. In particular, a conductive layer 26 is formed on the upper surface of the connecting portion 25 by vapor deposition or coating. Moreover, this conductive layer 2
6 has its ends 26a, 26a connected to the Pel 1 to state light body 21.
It is electrically connected to the conductor 1123 inside.
したかっ−Ｃ１同図（ｂ ）、（Ｃ）に承りように導電
層２３．２６により挾まれた接続部２５にお【プる感光
層２４の両面２４ａ 、２４ｂは、これら導電層２３．
２６により電気的に短絡され、同電位となる。このため
、前記接続部２５は帯電に稈により帯電づることがない
。したがって、接続部２５にＪｊ Ｉノる除電作業を必
要としない。As shown in Figures (b) and (c), both sides 24a and 24b of the photosensitive layer 24, which are connected to the connection portion 25 sandwiched by the conductive layers 23 and 26, are connected to the conductive layers 23 and 26, respectively.
They are electrically short-circuited by 26 and have the same potential. Therefore, the connecting portion 25 is not charged by the culm. Therefore, there is no need to perform static elimination work on the connection portion 25.
なお、上記導電層２６の幅は一般的に２０〜３０ｍｍの
範囲にあるのが望ましく、要は少’Ｊ くとも溶着によ
り感光特性が劣化した部分である接続部を完全に覆うよ
うに設（プればよい。The width of the conductive layer 26 is generally desirably in the range of 20 to 30 mm, and the conductive layer 26 is designed so as to completely cover at least the connection portion where the photosensitive characteristics have deteriorated due to welding. All you have to do is pull it.
以上説明したように、本考案に係る複写機にお【）る感
光体は、その接続部が帯電されないので、該接続部にト
ナーが付着しない。したがって、クリー二、ング装置の
負担は減少し、かつＩ幾内汚れも生じない。さらには該
接続部の電位が巽常に＾くなることがないので、絶縁破
壊を起４こともない。As explained above, since the connecting portion of the photoreceptor in the copying machine according to the present invention is not charged, toner does not adhere to the connecting portion. Therefore, the load on the cleaning equipment is reduced and no internal contamination occurs. Furthermore, since the potential of the connection portion does not drop all the time, dielectric breakdown does not occur.
したが−）て、該感光体の耐久性を増すことがτきる。Therefore, the durability of the photoreceptor can be increased.
第１図はベルト状感光体を備えた複写機を示り概念図で
あり、第２図（ａ ）、（ｂ）は従来の複写機にお【ノ
るベル［・状感光体１をポリもので、第２図（ａ ）は
その一部破断斜視図、第２図（ｂ）はその接続部１３の
△−Ａ断面図であり、第３図（ａ ＞、（ｂ）、（Ｃ）
は本考案に係る複写機におりる感光体の一実施例を示づ
もので、第３図（ａ ）はその一部破断斜視図、第３図
（Ｉ））はその接続部２５のＢ−Ｂ断面図、第３図（Ｃ
）はその接続部２５のＣ−Ｃ断面図である。
２１・・・感光体、２２・・・樹脂フィルム、２３．２
６・・・導電層、２４・・・感光体、２５・・・接続部
。FIG. 1 is a conceptual diagram showing a copying machine equipped with a belt-shaped photoreceptor, and FIGS. FIG. 2(a) is a partially cutaway perspective view, FIG. 2(b) is a Δ-A sectional view of the connecting portion 13, and FIG. )
3(a) is a partially cutaway perspective view of the photoconductor, and FIG. 3(I) is a view of the connecting portion 25 of the photoconductor according to the present invention. -B sectional view, Figure 3 (C
) is a CC sectional view of the connecting portion 25. 21... Photoreceptor, 22... Resin film, 23.2
6... Conductive layer, 24... Photoreceptor, 25... Connection portion.
Claims (1)
の感光体において、少くとも該接続部にお（）る上記感
光体板の上面に導′Ｆｉ層を形成し、該導電層と上記感
光体板内の導電層とを電気的に接続したことを特徴とす
る複写機にｄ３ ＜ノる感光体。In a photoconductor of a copying machine, in which a rectangular photoconductor plate is connected with both end surfaces avoiding contact, a conductive Fi layer is formed on the upper surface of the photoconductor plate at least at the connection portion, and the conductive layer is and a conductive layer in the photoconductor plate are electrically connected to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11219782A JPS593442A (en) | 1982-06-29 | 1982-06-29 | Photoreceptor of copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11219782A JPS593442A (en) | 1982-06-29 | 1982-06-29 | Photoreceptor of copying machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS593442A true JPS593442A (en) | 1984-01-10 |
Family
ID=14580686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11219782A Pending JPS593442A (en) | 1982-06-29 | 1982-06-29 | Photoreceptor of copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS593442A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3514809A1 (en) | 1984-04-24 | 1985-10-24 | Ricoh Co., Ltd., Tokio/Tokyo | ELECTROPHOTOGRAPHIC PHOTO LADDER IN THE FORM OF AN ENDLESS BAND |
| JPS60225872A (en) * | 1984-04-24 | 1985-11-11 | Ricoh Co Ltd | Beltlike electrophotographic sensitive body |
| JPS61162076A (en) * | 1985-01-11 | 1986-07-22 | Konishiroku Photo Ind Co Ltd | Endless belt-like image supporting body |
| JPH0229662A (en) * | 1988-07-19 | 1990-01-31 | Semiconductor Energy Lab Co Ltd | Photoconductor |
-
1982
- 1982-06-29 JP JP11219782A patent/JPS593442A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3514809A1 (en) | 1984-04-24 | 1985-10-24 | Ricoh Co., Ltd., Tokio/Tokyo | ELECTROPHOTOGRAPHIC PHOTO LADDER IN THE FORM OF AN ENDLESS BAND |
| JPS60225872A (en) * | 1984-04-24 | 1985-11-11 | Ricoh Co Ltd | Beltlike electrophotographic sensitive body |
| JPS61162076A (en) * | 1985-01-11 | 1986-07-22 | Konishiroku Photo Ind Co Ltd | Endless belt-like image supporting body |
| JPH0229662A (en) * | 1988-07-19 | 1990-01-31 | Semiconductor Energy Lab Co Ltd | Photoconductor |
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