JPS63240552A - Electrophotographic sensitive body - Google Patents

Electrophotographic sensitive body

Info

Publication number
JPS63240552A
JPS63240552A JP7475687A JP7475687A JPS63240552A JP S63240552 A JPS63240552 A JP S63240552A JP 7475687 A JP7475687 A JP 7475687A JP 7475687 A JP7475687 A JP 7475687A JP S63240552 A JPS63240552 A JP S63240552A
Authority
JP
Japan
Prior art keywords
photoreceptor
layer
photoconductive layer
cgl
electrophotographic photoreceptor
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
Application number
JP7475687A
Other languages
Japanese (ja)
Inventor
Tahei Ishiwatari
太平 石渡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP7475687A priority Critical patent/JPS63240552A/en
Publication of JPS63240552A publication Critical patent/JPS63240552A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02Charge-receiving layers
    • G03G5/04Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G03G5/0601Acyclic or carbocyclic compounds
    • G03G5/062Acyclic or carbocyclic compounds containing non-metal elements other than hydrogen, halogen, oxygen or nitrogen
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G5/00Recording members for original recording by exposure, e.g. to light, to heat, to electrons; Manufacture thereof; Selection of materials therefor
    • G03G5/02Charge-receiving layers
    • G03G5/04Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor
    • G03G5/06Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
    • G03G5/07Polymeric photoconductive materials

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

PURPOSE:To obtain a photosensitive body high in carrier mobility and usable for the simultaneous method by incorporating polyisothionaphthene in a photoconductive layer. CONSTITUTION:The photoconductive layer 2 is composed of an electric charge generating layer (CGL) for generating the carriers and a charge transfer layer (CTL) formed on CGL for transferring the carriers to the surface of the photosensitive body. CGL prepared by dispersing X-type metal phthalocyanine into polyisobutyral equal in weight is applied to the surface of a transparent conductive film 3, and then, CTL of a mixture of polyisothionaphthene and polyester in an equal weight ratio is formed on CGL to form the photoconductive layer 2, thus permitting the obtained photosensitive body to be high in carrier mobility and usable for the simultaneous method.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は電子写真感光体に関し、詳しくは、透明支tI
i体上に、透明導電層、先導rri后、及び、表面層を
積層してなる感光体を用い、該感光体に対する光像露光
を支11体側から行ない、その露光と同時に光像露光部
位の感光体表面にトリー−を付与することにより、露光
像に対応するトリ゛−像を形成する現像方法を用いる電
子写真プロセス(以下、同時法と呼称する。)で使用さ
れる電子写真感光体の改静に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrophotographic photoreceptor, and more particularly, to a transparent support tI.
Using a photoreceptor formed by laminating a transparent conductive layer, a leading rear layer, and a surface layer on an i body, the photoreceptor is exposed to a light image from the side of the support 11, and at the same time as the exposure is performed, the light image exposure area is exposed. An electrophotographic photoreceptor used in an electrophotographic process (hereinafter referred to as simultaneous method) that uses a developing method to form a tree image corresponding to an exposed image by forming trees on the surface of the photoreceptor. Regarding reform.

〔従来の技術〕[Conventional technology]

近年、新しい電子写真技術を利用した同時法が検コ・t
され、例えば、特開昭58−153057に提案されて
いる。
In recent years, simultaneous methods using new electrophotographic techniques have become popular.
For example, it has been proposed in Japanese Patent Laid-Open No. 58-153057.

この方法においては、透明支tzi体上に透明導電層、
さらに光導電層を1j′1層した感光体を用い、1亥感
光体の支持体側より露光する。露光と同時に、バイアス
電圧を印加したJ4電性磁性トリー−の磁気ブラシで、
感光体表面に擦過する。この時、露光部と未露光部との
光導電層の抵抗に変化が生じて、感光体表面に接触して
いる導電性磁性トリ−への注入電荷量に差が生じ、その
1u荷量の差が、感光体表面への導電性磁性トナーの静
電付性力の差となって、現像が可能となる。
In this method, a transparent conductive layer is formed on a transparent support,
Further, using a photoreceptor having one photoconductive layer 1j', exposure is performed from the support side of the photoreceptor. At the same time as exposure, a bias voltage was applied using the magnetic brush of the J4 electric magnetic tree.
Scratch onto the photoreceptor surface. At this time, a change occurs in the resistance of the photoconductive layer between the exposed area and the unexposed area, resulting in a difference in the amount of charge injected into the conductive magnetic tree in contact with the photoreceptor surface, and the 1U charge decreases. The difference becomes a difference in the electrostatic adhesion force of the conductive magnetic toner to the surface of the photoreceptor, and development becomes possible.

この同時法では感光体の支tli体側より露光を行う必
要性、及び、装置の小型化のために、透明支持体として
、a機高分子からなるシームレスベルトを用い、ベルト
の内部に露光用光学系を設置するのが最適であると考え
られており、また、光導電層としては、可tA性が良好
で、無公害性なぞ丁機光導電体が、注目されている。
In this simultaneous method, it is necessary to perform exposure from the support side of the photoreceptor, and in order to miniaturize the apparatus, a seamless belt made of a polymer is used as a transparent support, and an exposure optical system is installed inside the belt. In addition, as a photoconductive layer, a non-polluting photoconductor is attracting attention as it has good tA properties and is non-polluting.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかし、発明者らは、説立倹討の結果、同時法で用いら
れる感光体に要型される特性は、通常のカールソンプロ
セスで用いられる感光体のそれとは411を本釣に異な
ることを見いだした。
However, as a result of extensive research, the inventors found that the characteristics required for the photoreceptor used in the simultaneous method differ by 411 points from those of the photoreceptor used in the normal Carlson process. Ta.

それは、同時法の場合、感光体内部で発生したキャリア
が感光体表面へ移動するのに要する時間(以下、フライ
トタイムと呼称する。)は、露光時間よりも充分に短か
くなければいけないということであある。なぜならばカ
ールソンプロセスの場合、像露光の前に感光体は一様に
帯電させられ、その後、露光されるのであるから、感光
体としては、半減露光量(感光体の表面電位が半減する
のに必要な露光量。一般に、E50、あるいは、El/
2で表わされる。)が充分に小さいことが要求されるの
に対し、同時法の場合は、帯電プロセスがなく、かつ、
感光体に電圧が印加されている時間が、導電性磁性トリ
ー−の磁気ブラシと感光体表面とが接触している時間に
限られているために、露光時間中に発生したキャリアが
効率良く表面へ移動しなくては、露光による感光体の抵
抗変化が不充分となり、結果として、現像のコントラス
トが小さくなるためである。
In the case of the simultaneous method, the time required for the carriers generated inside the photoreceptor to move to the photoreceptor surface (hereinafter referred to as flight time) must be sufficiently shorter than the exposure time. It is. This is because in the Carlson process, the photoreceptor is uniformly charged before image exposure and then exposed. Required exposure amount. Generally E50 or El/
It is represented by 2. ) is required to be sufficiently small, whereas in the case of the simultaneous method, there is no charging process and
Since the time during which voltage is applied to the photoreceptor is limited to the time when the magnetic brush of the conductive magnetic tree is in contact with the photoreceptor surface, carriers generated during the exposure time are efficiently transferred to the surface. This is because if the photoreceptor is not moved to , the resistance change of the photoreceptor due to exposure will be insufficient, and as a result, the contrast of development will be reduced.

前述のフライトタイムについての一つのfit v3と
なる物性値として、感光体のキャリアの易動度が挙げら
れる。易動度が大ならば、フライトタイムは短かくなる
と言える。したがって、同時法に用いられる感光体に要
求される特性の一項目として、易動度が大きいというこ
とが挙げられる。
One of the physical property values that is fit v3 regarding the flight time mentioned above is the mobility of the carrier of the photoreceptor. It can be said that the greater the mobility, the shorter the flight time. Therefore, one of the characteristics required of a photoreceptor used in the simultaneous method is high mobility.

しかし現在、実用化されている打機光4電体の易動度は
、おおむね、10−@cm’/v*sccであって、一
般にイr機光導電体を光導電層として用いる場合のフラ
イトタイムは、一般的な光導電層の厚さが約20μmで
あるとすると、約20m5ecとなる。これは、露光時
間よりも、はるかに長い時間であると言える。
However, the mobility of the photoconductor currently in practical use is approximately 10-@cm'/v*scc, and generally speaking, the mobility of the photoconductor used as the photoconductive layer is approximately 10-@cm'/v*scc. If the thickness of a typical photoconductive layer is about 20 μm, the flight time is about 20 m 5 ec. This can be said to be a much longer time than the exposure time.

そこで、本発明は、このような問題点を解決するもので
あって、その目的とすることろは、無公害で、かつ、易
動度が大きく、0時法に使用されうる感光体を提供する
ことにある。
SUMMARY OF THE INVENTION The present invention aims to solve these problems, and its purpose is to provide a photoreceptor that is non-polluting, has a high degree of mobility, and can be used in the zero-time mode. It's about doing.

〔問題点を解決するための手段〕[Means for solving problems]

本発明の電子写真感光体は透明支持体上に、透明導電層
、光導電層、及び、表面層を積属してなる電子写真感光
体において、光導電層にポリインチオナフテンを含有す
ることを特徴とする。
The electrophotographic photoreceptor of the present invention is an electrophotographic photoreceptor comprising a transparent conductive layer, a photoconductive layer, and a surface layer laminated on a transparent support. Features.

(作用〕 本発明の電子写真感光体によれば、有45!導電体とし
て取卸の物質であるポリインチオナフテンを光導電層に
含有させ、該光導電層を低抵抗化することにより、感光
体の易動度が向上し、露光時間中により多くのキャリア
が移動し、現像に寄与し得る。
(Function) According to the electrophotographic photoreceptor of the present invention, the photoconductive layer contains polyinthiophthene, which is a material available as an electrical conductor, to lower the resistance of the photoconductive layer. The mobility of the photoreceptor is improved and more carriers can move during the exposure time and contribute to development.

〔実施例〕〔Example〕

第1図は、本発明の実施例における電子写真感光体の断
面図であって、lは表面層、2は光411層、3は透明
導電層、4は透明支持体である。
FIG. 1 is a cross-sectional view of an electrophotographic photoreceptor in an example of the present invention, in which 1 is a surface layer, 2 is a light 411 layer, 3 is a transparent conductive layer, and 4 is a transparent support.

以下の実施例では、本構造の電子写真感光体を作成し評
価を行った。
In the following examples, an electrophotographic photoreceptor having this structure was prepared and evaluated.

第2図に、本発明における電子IJ2几感光感光体いて
、同時法により、現像がなされる様子を示す。透明支持
体4上に、透明導電層3、光導電層2、表面層1を積属
してなる電子写真感光体5は、矢印7の方向へ移動する
際、像露光8を受ける。°トナー9の磁性のため、マグ
ネットローラ10とスリーブllを用いて形成される周
知の磁気ブラシにより、トリー−9は露光部において、
感光体5と接触している。スリーブ!■には、バイアス
電圧6が印加されているため、感光体5に接触している
トリ°−9には電荷が注入されるが、露光部と未露光部
では、感光体の抵抗値が異なるために電荷注入量が異な
り、その結果、感光体5の表面へのトリ・−〇の静電付
性力に差を生じ、現像が行なわれる。
FIG. 2 shows how the electronic IJ photoreceptor according to the present invention is developed by the simultaneous method. An electrophotographic photoreceptor 5 comprising a transparent conductive layer 3, a photoconductive layer 2, and a surface layer 1 stacked on a transparent support 4 receives image exposure 8 as it moves in the direction of an arrow 7. Due to the magnetism of the toner 9, the tree 9 is moved in the exposure section by a well-known magnetic brush formed using a magnet roller 10 and a sleeve 11.
It is in contact with the photoreceptor 5. sleeve! Since the bias voltage 6 is applied to (2), charge is injected into the tri-9 which is in contact with the photoconductor 5, but the resistance value of the photoconductor is different between the exposed area and the unexposed area. Therefore, the amount of charge injected differs, and as a result, a difference occurs in the electrostatic adhesion force of tri-- to the surface of the photoreceptor 5, and development is performed.

〔実施例1〕 透明支持体として、ポリチェレンテレ7タレートフィル
ムを用い、その上に、透明CmFMとして酸化インジウ
ムを蒸むした透明導電性フィルム(東し製、ハイビーム
100L−11KO2)上に、次の様な組成の光導電層
、及び、表面層を積層し、第1図に示すような構成を有
する電子写真感光体を作成した。
[Example 1] A polycellentele 7 tallate film was used as a transparent support, and a transparent conductive film (manufactured by Toshi, High Beam 100L-11KO2) on which indium oxide was steamed as a transparent CmFM, An electrophotographic photoreceptor having the structure shown in FIG. 1 was prepared by laminating a photoconductive layer and a surface layer having the following compositions.

光導電層はキャリアを発生するキャリア発生層(以下、
CGL)上に、発生したキャリアを感光体表面へ輸送す
るキャリア移動后(以下、CTL)から構成され、具体
的には、次のような構成をとる。
The photoconductive layer is a carrier generation layer (hereinafter referred to as a carrier generation layer) that generates carriers.
The photoreceptor is comprised of a carrier transporter (hereinafter referred to as CTL) that transports the generated carriers to the surface of the photoreceptor on the CGL), and specifically has the following configuration.

X型無金属フタロシアニン(大ロ本インキ製。Type X metal-free phthalocyanine (manufactured by Dairomoto Ink).

FasLogcn  131uc  8110)を、等
g(Hlのポリビニルブチラール(活水化学i!1゜S
−1、ECIIM−3)k:分散したCGLを透明Jj
3Tri性フィルム上に形成後、CGL上にポリインチ
オナフテン(昭和電工製。)とポリエステル(東洋紡製
。バイロン200)を等重量混合したCTLを形成し、
光導電層を作成した。
FasLogcn 131uc 8110), etc.
-1, ECIIM-3) k: Transparent CGL
After forming on the 3Tri film, CTL was formed by mixing polyinthionaphthene (manufactured by Showa Denko) and polyester (manufactured by Toyobo, Byron 200) in equal weight on CGL,
A photoconductive layer was created.

この先jΩ電層土に、Tiot粉末(堺化学工業製。T
K−100)を等重量のポリエステル(東洋紡製。バイ
ロン200)に分散した表面層を形成し、電子写真感光
体を作成した。
From now on, add Tiot powder (manufactured by Sakai Chemical Industry Co., Ltd.) to the jΩ conductive soil.
K-100) was dispersed in an equal weight of polyester (Vylon 200, manufactured by Toyobo Co., Ltd.) to form a surface layer to prepare an electrophotographic photoreceptor.

このようにして作成した電子写真感光体の・トヤリア移
動度をタイムオブフライト法(以下、TOIz法と呼称
する。)にて測定したところ、印加電圧150V、照射
光量5crg/cm’、照射時間10nsccの条件下
において、2.lXl0−4cm″/V・’JQCであ
った。
When the Toyaria mobility of the electrophotographic photoreceptor thus prepared was measured by the time-of-flight method (hereinafter referred to as the TOIz method), it was found that the applied voltage was 150 V, the irradiation amount was 5 crg/cm', and the irradiation time was 10 nscc. Under the conditions of 2. lXl0-4cm''/V·'JQC.

また、実際に、第2図に示すようなE成をイrする現像
装置に、この電子写真感光体を装管し、同時法による現
像を行なったところ、光学密度(以下、O,D、値と呼
称する。)が、1.36の鮮明なf象が得られた。
In addition, when this electrophotographic photoreceptor was actually loaded into a developing device with E formation as shown in FIG. A clear f-image with a value of 1.36 was obtained.

尚、ポリインチオナフテンの代りに、一般に、電荷移動
物質として止車されているフェニルヒドラゾン誘導体(
北南香料製。CTC−236)を使用する以外は、全く
同様に作成した電子写真感光体について、同様に評価し
たところ、キャリア移動度は、0.8XLO−’cm糞
/v、、。。、0、D、値は、0.62であった。
In addition, instead of polythionaphthene, a phenylhydrazone derivative (which is generally used as a charge transfer substance) is used.
Made by Kitanan Kogyo. An electrophotographic photoreceptor prepared in exactly the same manner except for using CTC-236) was evaluated in the same manner, and the carrier mobility was 0.8XLO-'cm/v. . ,0,D,value was 0.62.

〔実施例2〕 透明支tlj体上に透明導rri層を形成した透明導電
性フィルムとして、ポリエチレンテレフタレートフィル
ム」二にパラジウムを蒸むした透明導電性フィルム(東
し製。ハイビーム100L−TlO2)上に、次の様な
組成の光導電層、及び、表面層を1ノ10し、第1図に
示すような構成を打する電子写J’r感光体を作成した
[Example 2] As a transparent conductive film in which a transparent conductive layer was formed on a transparent supporting body, a transparent conductive film (manufactured by Toshi Co., Ltd., High Beam 100L-TlO2) in which palladium was steamed on a polyethylene terephthalate film was used. Then, an electrophotographic J'r photoreceptor having the structure shown in FIG. 1 was prepared by using a photoconductive layer and a surface layer having the following compositions.

透明導電性フィルムのノΩ電層面に、ポリインチオナフ
チ/(昭和電工製。)とポリビニルカルバゾール(北南
香料製。ツビコールNo、210)を等重量混合した光
導電層を形成し、さらに、この光導電層」二に、T r
 O*粉末(石層産業製。A−100)を等重■のポリ
ビニルブチラール(積木化学製。S −L E C13
M −S )に分散した表・面層を形成し、電子写真感
光体を作成した。
A photoconductive layer is formed on the non-ohmic conductive layer surface of the transparent conductive film by mixing equal weights of polyinthionaft/ (manufactured by Showa Denko) and polyvinylcarbazole (Tubicol No. 210, manufactured by Kitanan Koryo), and further, This photoconductive layer is secondly T r
O* powder (manufactured by Ishiya Sangyo. A-100) and polyvinyl butyral of equal weight (manufactured by Building Block Chemical Co., Ltd., S-L E C13)
An electrophotographic photoreceptor was prepared by forming a surface layer dispersed in M-S).

この上うCして作成した電子写真感光体を実施例1と同
様に評価したところ、キャリア移動度は3、GXIO−
’am’/v11secであり、0゜1〕、値が1,4
2の鮮明な像が得られた。
When the electrophotographic photoreceptor prepared by above C was evaluated in the same manner as in Example 1, the carrier mobility was 3, GXIO-
'am'/v11sec, 0°1], value 1,4
Two clear images were obtained.

尚、ポリインチオナフチンの代りに、ポリビニルブチラ
ール(積水化学製。S −L E C13M −5)を
使用する以外は、全く同様に作成した電子写真感光体に
ついて、同様に評価したところ、キャリア移動度は% 
 1.05X10−’CI+’/V”5ac10.D、
値は、0.05であった。
An electrophotographic photoreceptor prepared in the same manner except that polyvinyl butyral (S-L E C13M-5, manufactured by Sekisui Chemical Co., Ltd.) was used instead of polyinthionaftine was evaluated in the same manner. Degree is %
1.05X10-'CI+'/V"5ac10.D,
The value was 0.05.

〔発明の効果〕〔Effect of the invention〕

以」二の実施例から明らかなように、本発明によれば、
透明支持体上に透明導電層、光j4電層、及び、表面層
を積層してなる電子写真感光体において、光導電層にポ
リインチオナフチンを含有させることにより、I’l 
”r法に使用される電子写真感光体として、優れた現像
効率を示し、高コントラストの画像を提供することが可
能である。
As is clear from the following second embodiment, according to the present invention,
In an electrophotographic photoreceptor in which a transparent conductive layer, a photoconductive layer, and a surface layer are laminated on a transparent support, by containing polyinthioafthin in the photoconductive layer, I'l
As an electrophotographic photoreceptor used in the R method, it exhibits excellent development efficiency and can provide high contrast images.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、本発明の実施例における電子写真感光体の断
面図。 第2図は、本発明の電子写真感光体を用いて、同時法に
より、現像がなされる様子を示す図。 以  上
FIG. 1 is a sectional view of an electrophotographic photoreceptor in an embodiment of the present invention. FIG. 2 is a diagram showing how development is performed by a simultaneous method using the electrophotographic photoreceptor of the present invention. that's all

Claims (1)

【特許請求の範囲】[Claims] 透明支持体上に、透明導電層、光導電層、及び、表面層
を積層してなる電子写真感光体において、光導電層にポ
リイソチオナフテンを含有することを特徴とする電子写
真感光体。
An electrophotographic photoreceptor comprising a transparent conductive layer, a photoconductive layer, and a surface layer laminated on a transparent support, wherein the photoconductive layer contains polyisothionaphthene.
JP7475687A 1987-03-27 1987-03-27 Electrophotographic sensitive body Pending JPS63240552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7475687A JPS63240552A (en) 1987-03-27 1987-03-27 Electrophotographic sensitive body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7475687A JPS63240552A (en) 1987-03-27 1987-03-27 Electrophotographic sensitive body

Publications (1)

Publication Number Publication Date
JPS63240552A true JPS63240552A (en) 1988-10-06

Family

ID=13556433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7475687A Pending JPS63240552A (en) 1987-03-27 1987-03-27 Electrophotographic sensitive body

Country Status (1)

Country Link
JP (1) JPS63240552A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5500718A (en) * 1989-10-02 1996-03-19 Canon Kabushiki Kaisha Electrophotographic photosensitive member and electrophotographic device using the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5500718A (en) * 1989-10-02 1996-03-19 Canon Kabushiki Kaisha Electrophotographic photosensitive member and electrophotographic device using the same

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