JPS6292960A - Photosensitive body for image forming device - Google Patents

Photosensitive body for image forming device

Info

Publication number
JPS6292960A
JPS6292960A JP23415185A JP23415185A JPS6292960A JP S6292960 A JPS6292960 A JP S6292960A JP 23415185 A JP23415185 A JP 23415185A JP 23415185 A JP23415185 A JP 23415185A JP S6292960 A JPS6292960 A JP S6292960A
Authority
JP
Japan
Prior art keywords
image
negative
positive
charged
cell bodies
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
JP23415185A
Other languages
Japanese (ja)
Inventor
Seiji Hayashi
林 清司
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita Industrial Co Ltd
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 Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Priority to JP23415185A priority Critical patent/JPS6292960A/en
Publication of JPS6292960A publication Critical patent/JPS6292960A/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
    • G03G5/10Bases for charge-receiving or other layers
    • 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
    • G03G5/043Photoconductive layers characterised by having two or more layers or characterised by their composite structure

Abstract

PURPOSE:To make easy conversion between a positive image and negative image in analog image processing with simple constitution by dividing a photoconductive layer on a conductive substrate to many cell bodies by conductive films and charging the adjacent cell bodies to the electrostatic charge polarities different from each other. CONSTITUTION:The photoconductive layer 2 is formed on the conductive substrate 1 consisting of aluminum, etc. and is segmented by the conductive films 3 to the many regular triangular cell bodies. The positive-charged cells P which consist of phthalocyanine, etc., and are charged with positive charge by a main electrostatic charger and the negative-charged cells N which consist of zinc oxide, cadmium sulfid, etc., and are charged with negative charge are thus alternately arranged. The conversion between the negative and positive images is easily executed by changing the polarities of the voltage to be impressed to the charger without using intricate means for converting toners or changing the polarities of the voltage to be impressed to a transfer charger if the many P-type cells and N-type cells are alternately arranged in the above-mentioned manner.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は、rJ′p電複写機およびプリンタ等の画像形
成装置用感光体に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a photoreceptor for image forming apparatuses such as rJ'p electronic copying machines and printers.

(従来技術) 従来、イメージセンサ等を備え、デジタル画像処理を行
なう画像形成装置においては、信号を変換することによ
り、ポジ画像をネガ画像に変換し、あるいはその逆を行
なう画像の陰陽変換を容易に行なうことが可能である。
(Prior Art) Conventionally, in image forming apparatuses equipped with image sensors and performing digital image processing, it is easy to convert a positive image into a negative image or vice versa by converting signals. It is possible to do so.

これに対し、光学系部から感光体」二に原稿像を直接照
射してアノ−ログ画像処理を行なうものでは、通常現像
に使用するトナーの帯電極性が異なる二種類のドブ−を
画像に応じて使い分ける必要があるとともに、転写チャ
ージャに印加する電圧の極性をも変化させなqればなら
ず、構造が極めて複雑になるという欠点があった。
On the other hand, in the case of analog image processing in which the original image is directly irradiated from the optical system section onto the photoreceptor 2, two types of doves with different charging polarities of the toner used for development are used depending on the image. In addition, it is necessary to change the polarity of the voltage applied to the transfer charger, which has the disadvantage that the structure becomes extremely complicated.

また、特開昭50−19455号公報に示されるように
、導電性スクリーン上に光導電層を設けるとともにその
上に絶縁層を形成してなる感光性スクリーンを設けて上
記絶縁層に静電潜像を形成し、この静電潜像を利用して
静電記録紙上に潜像転写を行ない、かつ転写時に上記感
光性スクリーンおよび静電記録紙に印加する電圧の極性
を変化さけることにより、上記画像の陰陽変換を行なう
ようにしたものがある。しかし、この構成では、記録紙
として導電性支持体上に絶縁層を設けてなる特殊な記録
紙を用いな【プればならず、普通紙を使用できないとい
う問題があった。
Furthermore, as shown in Japanese Patent Application Laid-Open No. 50-19455, a photoconductive screen is provided with a photoconductive layer on a conductive screen and an insulating layer is formed on the photosensitive screen, and the insulating layer has an electrostatic potential. By forming an image, transferring the latent image onto electrostatic recording paper using this electrostatic latent image, and avoiding changing the polarity of the voltage applied to the photosensitive screen and the electrostatic recording paper at the time of transfer, the above-mentioned There is one that performs yin-yang conversion of images. However, this configuration has the problem that a special recording paper consisting of an insulating layer provided on a conductive support must be used as the recording paper, and plain paper cannot be used.

(発明の目的) 本発明は、上記欠点を解消するためになされたものであ
り、ア尤ログ画像処理を行なう画像形成装置において、
帯電極性の異なる二種類のトナーを使用する必要がなく
、簡単な構成でポジ画像をネガ画像に変換する等の画像
の陰陽変換を容易に行なうことができるとともに、記録
紙として普通紙を使用することができる画像形成装置用
感光体を11?供する乙のである。
(Object of the Invention) The present invention has been made in order to eliminate the above-mentioned drawbacks, and is intended to provide an image forming apparatus that performs alog image processing.
There is no need to use two types of toner with different charging polarities, and it is possible to easily perform Yin-Yang conversion of images, such as converting a positive image into a negative image, with a simple configuration, and also allows the use of plain paper as recording paper. 11 photoreceptors for image forming devices that can be used It is Party B's to provide.

(発明の構成) 本発明は、S電性基板上に光導電層を設け、この光導電
層を導電性膜で包囲してなる画像形成装置用感光体にお
いて、上記光導電層を正帯電セルと負帯電セルとからな
る多数のセル体によって形成し、相隣接づるセル体の帯
電極性を互いに異ならせてなるものである。
(Structure of the Invention) The present invention provides a photoreceptor for an image forming apparatus in which a photoconductive layer is provided on an S-conductive substrate and the photoconductive layer is surrounded by a conductive film. It is formed by a large number of cell bodies each consisting of a negatively charged cell and a negatively charged cell, and the charging polarities of adjacent cell bodies are made to differ from each other.

この構成により、感光体の正帯電セルを使用して形成し
た画像と、負帯電セルを使用して形成した画像とが互い
に反転画像となるようにしている。
With this configuration, the image formed using the positively charged cells of the photoreceptor and the image formed using the negatively charged cells are mutually inverted images.

(実施例) 第1図は、本発明に係る感光体の実施例を示す断面図で
ある。この感光体は、アルミニウム等からなる導電性基
板1と、この基板1上に形成された光導電層2と、この
光導電層2を包囲する導電性膜3とからなっている。上
記光導電層2は、第2図に示すように、平面から見て正
三角状に区画された多数のセル体4により形成され、各
セル体4.4間には導電性膜3が介在している。
(Example) FIG. 1 is a sectional view showing an example of a photoreceptor according to the present invention. This photoreceptor consists of a conductive substrate 1 made of aluminum or the like, a photoconductive layer 2 formed on this substrate 1, and a conductive film 3 surrounding this photoconductive layer 2. As shown in FIG. 2, the photoconductive layer 2 is formed of a large number of cell bodies 4 divided into equilateral triangular shapes when viewed from above, and a conductive film 3 is interposed between each cell body 4. are doing.

上記セル体4は、主帯電器によって正電荷が帯電される
正帯電セル(P型セル)と、負電荷が帯電される負帯電
セル(N型セル)とからなり、相隣接するセル体4.4
の帯電極性が互いに異なるように配列されている。上記
光導電層2は、正帯電セルがフタロシアニン等で形成さ
れ、負帯電セルが酸化亜鉛、硫化カドミウム等で形成さ
れている。
The cell body 4 is composed of a positively charged cell (P type cell) that is charged with a positive charge by a main charger and a negatively charged cell (N type cell) that is charged with a negative charge, and the cell bodies 4 are adjacent to each other. .4
are arranged so that their charging polarities are different from each other. In the photoconductive layer 2, positively charged cells are formed of phthalocyanine or the like, and negatively charged cells are formed of zinc oxide, cadmium sulfide, or the like.

第3図は、上記感光体を静電複写機の感光体ドラム5と
して用いた場合の実施例を示している。
FIG. 3 shows an embodiment in which the above photoreceptor is used as the photoreceptor drum 5 of an electrostatic copying machine.

この図において、6は原稿7が載置されるコンタクトガ
ラス、8は原稿7を走査露光する光学系部、9は感光体
ドラム5の上記光11WI2を帯電させる主帯電器、1
0は感光体ドラム5上に形成された静電潜像を現像する
現像ローラ、11は記録紙にトナー像を転写させる転写
帯電器である。上記下帯Ti器9は、感光体ドラム5上
に設けられたセル体4のうらP型セルを正帯電させる正
電圧と、N型セルを負帯電させる負電圧とをそれぞれ必
要に応じて印加させるための高圧トランスを備えている
In this figure, 6 is a contact glass on which the original 7 is placed, 8 is an optical system unit that scans and exposes the original 7, 9 is a main charger that charges the light 11WI2 of the photosensitive drum 5, and 1
0 is a developing roller that develops the electrostatic latent image formed on the photosensitive drum 5, and 11 is a transfer charger that transfers the toner image onto recording paper. The lower band Ti device 9 applies a positive voltage to positively charge the back P-type cell of the cell body 4 provided on the photoreceptor drum 5 and a negative voltage to negatively charge the N-type cell, respectively, as necessary. It is equipped with a high-voltage transformer for this purpose.

上記構成において、原稿1の像を通常の状態で複写して
ポジ画像を形成する場合には、上記主°帯電器9に正電
圧を印加して感光体ドラム5上のPをセルをそれぞれ均
一に正帯電させる。次に、上記光学系部8により原稿7
の像を感光体ドラム5上に露光し、原稿7の白地部分に
対応する個所に位置するP型セルの電荷を放電させて静
電潜像を形成する。そして、この静電潜像に現像ロー5
10上の負帯電トナーを摺擦さVて原稿像に対応するポ
ジトナー像を形成する。このポジトナー像は上記転写帯
電器11に印加された正電圧によって普通紙からなる記
録紙上に転写(正転現像)される。
In the above configuration, when copying the image of the original 1 in a normal state to form a positive image, a positive voltage is applied to the main charger 9 to uniformly distribute P on the photoreceptor drum 5 in each cell. to be positively charged. Next, the optical system section 8
The image is exposed on the photoreceptor drum 5, and the charges in the P-type cells located at the locations corresponding to the blank portions of the original document 7 are discharged to form an electrostatic latent image. Then, a developing roller 5 is applied to this electrostatic latent image.
The negatively charged toner on 10 is rubbed to form a positive toner image corresponding to the original image. This positive toner image is transferred onto a recording sheet made of plain paper (normal transfer development) by a positive voltage applied to the transfer charger 11.

また、上記原稿像の陰陽を反転させてネガ′画像を形成
する場合には、上記主帯電器9に負電圧を印加して感光
体ドラム5上のN型セルをそれぞれ均一に負帯電させた
後に、L記原搗像を露光することにより、B’II7の
白地部分に対応するN型セルの電荷を放電させて静電潜
像を形成する。そして、この静電潜像に現像ローラ10
上の負帯電トナーを摺擦させることにより、負帯電状態
にあるN型セル以外のセル体4にトナーを何着させてネ
ガトナー像を形成する。すなわら、上記現像ローラ10
に負電圧のバイアス電圧を印加することにより、上記負
帯電トナーが負帯電したN型セルを避けて伯の部分に付
着し、原稿像の白地部分に対応する個所にトナーが付着
したネガ1〜ナー像が形成される。このネガトナー像は
、転写帯電器11に印加された正電圧によって記録紙上
に転写(反転現像)される。
Further, when reversing the yin and yang of the original image to form a negative image, a negative voltage is applied to the main charger 9 to uniformly charge each of the N-type cells on the photoreceptor drum 5 negatively. Later, by exposing the L image to light, the charge in the N-type cell corresponding to the white background portion of B'II7 is discharged to form an electrostatic latent image. A developing roller 10 is applied to this electrostatic latent image.
By rubbing the negatively charged toner above, the toner is deposited on the cell bodies 4 other than the negatively charged N-type cells to form a negative toner image. In other words, the developing roller 10
By applying a negative bias voltage to , the negatively charged toner avoids the negatively charged N-type cells and adheres to the squared area, resulting in negatives 1 to 1 in which the toner adheres to the area corresponding to the white background area of the original image. A neutral image is formed. This negative toner image is transferred onto the recording paper (reversal development) by a positive voltage applied to the transfer charger 11.

このように、感光体上にP型セルとN型セルとからなる
多数のセル体4を設けるとともに、主帯電器9に印加す
る電圧の極性を変化させることにより、同一のトナーお
よび現像装置を使用してポジ画像およびネガ画像のいず
れをも形成することができるとともに、記録紙として特
殊紙を使用することなく画像の陰陽変換を容易に行なう
ことができる。また、上記画像の鯰陽変換を行なう場合
にJ′3いて、転写帯電器9に印加する電圧の極性まで
は変化させる必要はなく、電圧値を僅かに変化させるだ
けでよいので回路構成を簡略化することができる。
In this way, by providing a large number of cell bodies 4 consisting of P-type cells and N-type cells on the photoreceptor and by changing the polarity of the voltage applied to the main charger 9, it is possible to use the same toner and developing device. Both positive and negative images can be formed using this method, and Yin-Yang conversion of images can be easily performed without using special paper as recording paper. In addition, when performing catfish-positive conversion of the above-mentioned image, there is no need to change the polarity of the voltage applied to the transfer charger 9, and it is only necessary to change the voltage value slightly, which simplifies the circuit configuration. can be converted into

なお、上記実施例では、ドラム構造の感光体について説
明したが、ベル1〜構造の感光体についても本発明の構
成は適用可能である。また、上記セル体4の形状は正三
角に限らず、円形等の種々の形状に変形が可能である。
In the above embodiments, a photoreceptor having a drum structure has been described, but the configuration of the present invention is also applicable to photoreceptors having a bell 1 structure. Further, the shape of the cell body 4 is not limited to an equilateral triangle, but can be modified to various shapes such as a circle.

また、粒径が20μm程度の1−ナーを使用する場合に
おいて、鮮明な画像を形成するためには、相隣接するセ
ル体4,4の中心間距離を60μm程度以下に設定する
ことが望ましい。
Further, in the case of using 1-ner with a particle size of about 20 μm, in order to form a clear image, it is desirable to set the distance between the centers of adjacent cell bodies 4, 4 to about 60 μm or less.

(発明の効果) 以上説明したように本発明は、アJ゛ログ画(象処理を
行なう画像形成装置において、感光体−Fに多数の正帯
電セルJ5よび負帯電セルのセル体からなる光導電層を
設けたため、主帯電器に印加する電圧の極性を変化させ
ることにより、使用する1−ナーを変換したり、転写帯
電器に印加する電圧の4i性を変化させる等の複雑な構
成を採用することなく、簡単に画像の陰陽変換を行なう
ことができるという効果がある。
(Effects of the Invention) As explained above, the present invention provides an image forming apparatus that performs analog image processing. The conductive layer allows complex configurations such as changing the polarity of the voltage applied to the main charger to change the 1-ner used or changing the 4i nature of the voltage applied to the transfer charger. It has the effect that Yin-Yang conversion of an image can be easily performed without employing the above method.

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

第1図は本発明に係る感光体の実施例を示す断面図、第
2図は上記感光体の平面図、第3図は上記感光体を用い
た静電複写磯の概略図である。 1・・・11電性基板、2・・・光導電層、3・・・導
電性膜、4・・・セル体、P・・・正帯°ミセル、N・
・・負帯電セル。 特許出願人     三田工業株式会社代 理 人  
   弁理士 小谷悦司同       弁理士 長1
)1 同       弁理士 板谷康夫 第  1  図 第  2  図 第  3  図 ヒト/l
FIG. 1 is a sectional view showing an embodiment of a photoreceptor according to the present invention, FIG. 2 is a plan view of the photoreceptor, and FIG. 3 is a schematic diagram of an electrostatic copying plate using the photoreceptor. DESCRIPTION OF SYMBOLS 1... 11 Conductive substrate, 2... Photoconductive layer, 3... Conductive film, 4... Cell body, P... Normal band degree micelle, N...
...Negatively charged cell. Patent applicant Agent: Sanda Kogyo Co., Ltd.
Patent Attorney Etsushi Kotani Patent Attorney Chief 1
)1 Patent Attorney Yasuo Itaya Figure 1 Figure 2 Figure 3 Human/l

Claims (1)

【特許請求の範囲】[Claims] 1、導電性基板上に光導電層を設け、この光導電層を導
電性膜で包囲してなる画像形成装置用感光体において、
上記光導電層を正帯電セルと負帯電セルとからなる多数
のセル体によって形成し、相隣接するセル体の帯電極性
を互いに異ならせてなることを特徴とする画像形成装置
用感光体。
1. In a photoreceptor for an image forming device, which is formed by providing a photoconductive layer on a conductive substrate and surrounding the photoconductive layer with a conductive film,
A photoreceptor for an image forming apparatus, characterized in that the photoconductive layer is formed by a large number of cell bodies each consisting of positively charged cells and negatively charged cells, and the charging polarities of adjacent cell bodies are made to differ from each other.
JP23415185A 1985-10-18 1985-10-18 Photosensitive body for image forming device Pending JPS6292960A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23415185A JPS6292960A (en) 1985-10-18 1985-10-18 Photosensitive body for image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23415185A JPS6292960A (en) 1985-10-18 1985-10-18 Photosensitive body for image forming device

Publications (1)

Publication Number Publication Date
JPS6292960A true JPS6292960A (en) 1987-04-28

Family

ID=16966446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23415185A Pending JPS6292960A (en) 1985-10-18 1985-10-18 Photosensitive body for image forming device

Country Status (1)

Country Link
JP (1) JPS6292960A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005134901A (en) * 2003-10-28 2005-05-26 Xerox Corp Electrophotographic printing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005134901A (en) * 2003-10-28 2005-05-26 Xerox Corp Electrophotographic printing machine

Similar Documents

Publication Publication Date Title
JPH0336226B2 (en)
JPS6292960A (en) Photosensitive body for image forming device
JPS6023348B2 (en) Two-color electrophotographic copying method
JPS6320995Y2 (en)
JPS6363057A (en) Duplex printing method
JPS60195560A (en) Image forming method
JPS61155854U (en)
JPH01251042A (en) Electrostatic latent image forming method
JPH04194877A (en) Developing device
JPS57195264A (en) Electrophotographic copying printer device
JPH0673038B2 (en) Electrophotographic recording method
JPS6294857A (en) Image formation
JPS61219964A (en) Formation of two-color image
JPS6053967A (en) Multiple sheet copying method
JPS60196782A (en) Bicolor image forming device
JPS63303378A (en) Electrostatic recorder
JPS604960A (en) Two color image forming device
JPH01102581A (en) Electrostatic recorder
JPS6262350B2 (en)
JPS62184475A (en) Image forming method
JPS57195265A (en) Electrophotographic copy printer device
JPS5745561A (en) Method for synthesized recording of images
JPS63174071A (en) Electrophotographic recording system
JPH03137658A (en) Electrophotographic device
JPS59220759A (en) Dichroic electrophotographic copying method