JPH0683143A - Photosensitive body for optical back recording and image forming device - Google Patents

Photosensitive body for optical back recording and image forming device

Info

Publication number
JPH0683143A
JPH0683143A JP1615892A JP1615892A JPH0683143A JP H0683143 A JPH0683143 A JP H0683143A JP 1615892 A JP1615892 A JP 1615892A JP 1615892 A JP1615892 A JP 1615892A JP H0683143 A JPH0683143 A JP H0683143A
Authority
JP
Japan
Prior art keywords
photoconductive layer
photosensitivity
image
image exposure
emission wavelength
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.)
Granted
Application number
JP1615892A
Other languages
Japanese (ja)
Other versions
JP2738787B2 (en
Inventor
Yukio Sasaki
幸雄 佐々木
Masatoshi Kimura
正利 木村
Junzo Nakajima
淳三 中島
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 Corp
Fujitsu Ltd
Original Assignee
Kyocera Corp
Fujitsu 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 Kyocera Corp, Fujitsu Ltd filed Critical Kyocera Corp
Priority to JP4016158A priority Critical patent/JP2738787B2/en
Publication of JPH0683143A publication Critical patent/JPH0683143A/en
Application granted granted Critical
Publication of JP2738787B2 publication Critical patent/JP2738787B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)

Abstract

PURPOSE:To improve the responsiveness to the image exposure and to obtain a ceear image by laminating a second photoconductive layer having a lower photosensitivity to the image exposure than a first photoconductive layer and a lower photosensitivity to the destaticizing light and having the photosensitivity to the destaticizing light on the first photoconductive layer constituted of amolphous silicone (a-Si). CONSTITUTION:A transparent or translucent conductive layer 1-2 and the photoconductive layer are laminated successively on a transparent substrate 1-1. Then, the second photoconductive layer 1-5 having a lower photosensitivity to the image exposure than the photoconductive layer 1-4 and having the photosensitivity to the destaticizing light is laminated on the first photoconductive layer 1-4 having the photosensitivity to the image exposure and constituted of a-Si. The photoconductive layer 1-5 acts as a insulating layer at the time of exposure because the photoconductive layer 1-5 is low in the photosensitivity to the wavelength of an exposure light beam. As a result, the a latent image electric charge 5 and the electric charge of a toner 6 are insulated, thus neutralization is prevented and a sufficient electrostatic charge restraint force is obtained. Further, when the destaticizing light is irradiated, the latent image electric charge 5 is brought to the photoconductive layer to be neutralized with the toner.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、透明基体と透明導電層
と光導電層とからなる光背面記録用感光体並びにその感
光体を搭載した画像形成装置に関するものである。情報
処理の分野で画像処理が盛んに行われている。この画像
処理の内で出力装置として画像形成装置がある。この画
像形成装置は、電子写真法即ちカールソンプロセスを用
いている。即ち記録媒体に感光体を用い、一様にこの感
光体を帯電し、画像情報に基づく画像露光を行い、この
画像露光による静電潜像にトナーを付着させて現像を行
う。このトナー画像を記録紙に転写して定着を行って所
要の記録を得る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical backside recording photosensitive member comprising a transparent substrate, a transparent conductive layer and a photoconductive layer, and an image forming apparatus equipped with the photosensitive member. Image processing is actively performed in the field of information processing. An image forming apparatus is an output apparatus in the image processing. This image forming apparatus uses an electrophotographic method, that is, the Carlson process. That is, a photoconductor is used as a recording medium, the photoconductor is uniformly charged, image exposure is performed based on image information, and toner is attached to the electrostatic latent image formed by the image exposure to perform development. This toner image is transferred to recording paper and fixed to obtain the required recording.

【0002】転写後に、感光体上に残留したトナーの帯
電を行って、感光体のクリーニングを行うと云う工程を
とっている。上記したカールソンプロセス方式の画像形
成装置は装置が大型化すると云う欠点と、除電にコロナ
放電を用いており、耐圧の面及びオゾンの発生の面から
好ましくないと云う問題があった。
After the transfer, the toner remaining on the photoconductor is charged to clean the photoconductor. The above-mentioned Carlson process type image forming apparatus has a drawback that the apparatus becomes large in size and that corona discharge is used for static elimination, which is not preferable in terms of pressure resistance and generation of ozone.

【0003】[0003]

【従来の技術】上記したカールソンプロセス方式の問題
に対処するために、図5及び図6に示すような工程をも
つ画像形成装置が用いられている。図5に示すように、
感光体1は透明基体1-1 と透明導電層1-2 と光導電層1-
3 とで構成し、所謂、光背面記録用の感光体とする。現
像手段2は磁気ブラシ現像機2-2 と2-3 とで構成され、
磁気ブラシ現像機2-2 は、電源2-1 にて現像バイアスが
印加されており、内蔵するトナーを搬送する。この状態
で、感光体1の透明基体1-1 側から画像露光手段3を用
いて、画像露光を行う。すると、露光部の光導電層1-3
では、ホトキャリアが発生し、感光体1の表面方向に移
動し、潜像電荷となる。
2. Description of the Related Art An image forming apparatus having steps as shown in FIGS. 5 and 6 is used in order to solve the problem of the Carlson process method. As shown in FIG.
Photoreceptor 1 includes transparent substrate 1-1, transparent conductive layer 1-2, and photoconductive layer 1-
And a so-called photoconductor for optical back surface recording. The developing means 2 is composed of magnetic brush developing machines 2-2 and 2-3,
The magnetic brush developing machine 2-2, to which a developing bias is applied by the power source 2-1, conveys the toner contained therein. In this state, image exposure is performed from the transparent substrate 1-1 side of the photoconductor 1 using the image exposure means 3. Then, the photoconductive layer 1-3 of the exposed portion
Then, photocarriers are generated and move toward the surface of the photoconductor 1 to become latent image charges.

【0004】これとほぼ同時に、潜像電荷5と逆極性に
帯電したトナーが、感光体1の表面に付着しトナー像が
形成される。しかし、この時、非露光部でも、磁気ブラ
シ現像機2-2 と透明導電層1-2 の間に電界が働くため、
トナーが付着する。この状態で、図6に示すように、接
地された磁気ブラシ現像機2-3 によって、光導電層1-3
上の非露光の潜像電荷5の無い個所のトナーが回収され
る。従って、潜像電荷部分のトナー6が静電拘束力によ
って感光体1上に画像を形成する。
Almost at the same time, the toner charged to the opposite polarity to the latent image charge 5 adheres to the surface of the photoconductor 1 to form a toner image. However, at this time, even in the non-exposed area, an electric field works between the magnetic brush developing machine 2-2 and the transparent conductive layer 1-2,
Toner adheres. In this state, as shown in FIG. 6, the photoconductive layer 1-3 is grounded by the grounded magnetic brush developing machine 2-3.
The toner at the upper portion where there is no latent image charge 5 is collected. Therefore, the toner 6 in the latent image charge portion forms an image on the photoconductor 1 by the electrostatic restraint force.

【0005】しかしこの方式では、画像露光を行い現像
をする工程(図5の状態)及び、非露光部のトナーを除
去する工程(図6の状態)で潜像電荷5とトナー電荷6
とが中和し、静電拘束力を弱められ、潜像電荷部に付着
したトナー6が磁気ブラシ現像機2-3 で回収されてしま
い、充分な画像濃度が得られないと云う欠点がある。こ
れに対処するために、光導電層1-3 上に絶縁層を設けて
中和を防止するとよいが、絶縁層を設けると、潜像電荷
5とトナー電荷6の静電拘束力が除電光源にて除去され
ないと云う問題を生ずる。
However, in this system, the latent image charge 5 and the toner charge 6 are used in the step of exposing and developing the image (the state of FIG. 5) and the step of removing the toner in the non-exposed portion (the state of FIG. 6).
Neutralizes, the electrostatic restraint force is weakened, and the toner 6 attached to the latent image charge portion is collected by the magnetic brush developing machine 2-3, so that a sufficient image density cannot be obtained. . In order to deal with this, it is preferable to provide an insulating layer on the photoconductive layer 1-3 to prevent neutralization. However, when the insulating layer is provided, the electrostatic binding force of the latent image charge 5 and the toner charge 6 causes the static elimination light source. There is a problem that it is not removed in.

【0006】また、上記構成の画像形成装置である場
合、長波長光を照射するLEDアレーを画像露光手段と
して用いるので、その画像露光に対する光感度を高める
ことが望まれている。更にまた上記画像形成装置に用い
られる光背面記録用感光体によれば、現像手段2を通過
する時間が短くて、その短い時間に行われる画像露光に
より露光と現像をほぼ同時に行われている。従って、光
導電層1-3 で発生する光キャリアの生成効率が優れて、
その光キャリアの移動度も高めること、即ち画像露光に
対する応答性を高めることも望まれている。
Further, in the case of the image forming apparatus having the above-mentioned constitution, since the LED array for irradiating the long wavelength light is used as the image exposing means, it is desired to increase the photosensitivity to the image exposing. Furthermore, according to the optical back surface recording photoconductor used in the image forming apparatus, the time for passing through the developing means 2 is short, and the exposure and the development are performed almost simultaneously by the image exposure performed in the short time. Therefore, the generation efficiency of photocarriers generated in the photoconductive layer 1-3 is excellent,
It is also desired to increase the mobility of the optical carrier, that is, to improve the responsiveness to image exposure.

【0007】[0007]

【発明が解決しようとする課題】上記した従来の画像形
成装置では、上述した諸点により印字濃度が充分でな
く、又潜像部の残留トナー除去が充分に行われないと云
う問題があった。本発明は、このような従来の状況か
ら、鮮明な画像の得られる画像形成装置の提供を目的と
するものである。
The above-mentioned conventional image forming apparatus has problems that the printing density is not sufficient due to the above-mentioned various points and that the residual toner in the latent image portion is not sufficiently removed. SUMMARY OF THE INVENTION The present invention has an object to provide an image forming apparatus capable of obtaining a clear image from such a conventional situation.

【0008】[0008]

【問題点を解決するための手段】本発明によれば、図1
〜図3に示すように、透明基体1−1上に、透明或いは
半透明導電層1−2と光導電層を順次積層するととも
に、その光導電層を、画像露光に光感度を有し且つアモ
ルファスシリコン(以下アモルファスシリコンをa−S
iと略記する)から成る第一の光導電層1−4上に、第
一の光導電層1−4よりも画像露光に対する光感度が低
く且つ除電光に対する光感度を有する第二の光導電層1
−5を積層して構成したことを特徴とする光背面記録用
感光体1が提供される。
According to the present invention, FIG.
As shown in FIG. 3, a transparent or semi-transparent conductive layer 1-2 and a photoconductive layer are sequentially laminated on a transparent substrate 1-1, and the photoconductive layer has photosensitivity for image exposure. Amorphous silicon (hereinafter referred to as amorphous silicon
abbreviated as i) on the first photoconductive layer 1-4, which has a lower photosensitivity to image exposure than the first photoconductive layer 1-4 and a photosensitivity to static elimination light. Layer 1
There is provided an optical back surface recording photoreceptor 1 characterized by being configured by laminating -5.

【0009】また、この光背面記録用感光体において、
第二の光導電層1−5が第一の光導電層1−4よりも画
像露光に対する光感度が低く且つ除電光に対する光感度
が画像露光に対する光感度よりも高いことを特徴とする
光背面記録用感光体1が提供される。また本発明によれ
ば、透明基体1−1上に、透明或いは半透明導電層1−
2と光導電層を順次積層するとともに、その光導電層
を、画像露光に光感度を有し且つa−Siから成る第一
の光導電層1−4上に、第一の光導電層1−4よりも画
像露光に対する光感度が低く且つ除電光に対する光感度
を有する第二の光導電層1−5を積層して構成した感光
体1と、その感光体1に対して光導電層側に設けられた
現像手段2と、上記感光体1を介して現像手段2と対向
するように配置された画像露光手段3と、除電光源4と
を具備した画像形成装置が提供される。
Further, in this optical backside recording photoreceptor,
The second photoconductive layer 1-5 has a lower photosensitivity to image exposure than the first photoconductive layer 1-4 and has a higher photosensitivity to static elimination light than a photosensitivity to image exposure. A recording photoreceptor 1 is provided. According to the present invention, the transparent or semitransparent conductive layer 1-on the transparent substrate 1-1.
2 and a photoconductive layer are sequentially laminated, and the photoconductive layer is formed on the first photoconductive layer 1-4 which has photosensitivity for image exposure and is made of a-Si. -4, a photoconductor 1 formed by laminating a second photoconductive layer 1-5 having a lower photosensitivity to image exposure and a photosensitivity to static elimination light, and a photoconductive layer side of the photoconductor 1. An image forming apparatus is provided which includes a developing unit 2 provided in the image forming apparatus, an image exposing unit 3 arranged to face the developing unit 2 with the photoconductor 1 interposed therebetween, and a charge eliminating light source 4.

【0010】また、この画像形成装置において、第二の
光導電層1−5が第一の光導電層1−4よりも画像露光
に対する光感度が低く且つ除電光に対する光感度が画像
露光に対する光感度よりも高いことを特徴とする画像形
成装置が提供される。更にまた本発明によれば、透明基
体1−1上に、透明或いは半透明導電層1−2と光導電
層を順次積層して成る感光体1と、その感光体1に対し
て光導電層側に設けられた現像手段2と、上記感光体を
介して現像手段2と対向するように配置された画像露光
手段3と、除電光源4とを具備するとともに、上記光導
電層を、上記画像露光手段3の発光波長に光感度を有し
且つa−Siから成る第一の光導電層1−4上に、第一
の光導電層1−4よりも上記画像露光手段3の発光波長
に対する光感度が低く且つ除電光源4の発光波長に対す
る光感度を有する第二の光導電層1−5を積層して構成
したことを特徴とする画像形成装置が提供される。
Further, in this image forming apparatus, the second photoconductive layer 1-5 has lower photosensitivity to image exposure than the first photoconductive layer 1-4, and the photosensitivity to static elimination light is higher than that to the image exposure. An image forming apparatus is provided which is characterized by higher than sensitivity. Furthermore, according to the present invention, a photoconductor 1 comprising a transparent substrate 1-1 and a transparent or semi-transparent conductive layer 1-2 and a photoconductive layer sequentially laminated thereon, and a photoconductive layer for the photoconductor 1. The developing means 2 provided on the side, the image exposing means 3 arranged so as to face the developing means 2 through the photoconductor, and the static elimination light source 4 are provided, and the photoconductive layer is provided on the image side. On the first photoconductive layer 1-4 made of a-Si and having a photosensitivity to the emission wavelength of the exposure unit 3, the light emission wavelength of the image exposure unit 3 is greater than that of the first photoconductive layer 1-4. An image forming apparatus is provided which is configured by laminating second photoconductive layers 1-5 having low photosensitivity and photosensitivity to the emission wavelength of the static elimination light source 4.

【0011】また、この画像形成装置において、第二の
光導電層1−5が第一の光導電層1−4よりも上記画像
露光手段の発光波長に対する光感度が低く且つ除電光源
4の発光波長に対する光感度が上記画像露光手段3の発
光波長に対する光感度よりも高いことを特徴とする画像
形成装置が提供される。
Further, in this image forming apparatus, the second photoconductive layer 1-5 has a lower photosensitivity to the emission wavelength of the image exposing means than the first photoconductive layer 1-4 and the light emission of the neutralization light source 4 is. There is provided an image forming apparatus characterized in that the photosensitivity to the wavelength is higher than the photosensitivity to the emission wavelength of the image exposing means 3.

【0012】[0012]

【作用】上記構成の光背面記録用感光体1及び画像形成
装置においては、第二の光導電層1−5は露光の光波長
に低感度であるので、露光の際にその第二の光導電層1
−5は絶縁層として作用する。従って、図3に示すよう
な潜像電荷5とトナー6の電荷は絶縁されて、潜像電荷
5とトナー6の電荷との中和を防止し、充分な静電拘束
力が得られる。上記光背面記録用感光体1上に残留した
トナーを除去するために、除電光を照射すると、第二の
光導電層1−5は反応し、潜像電荷5をその第二の光導
電層1−5にもたらし、トナーと中和して除電されるこ
ととなる。従って、鮮明な画像形成が行われることとな
る。
In the photoconductor 1 for optical backside recording and the image forming apparatus having the above-mentioned structure, the second photoconductive layer 1-5 has a low sensitivity to the light wavelength of the exposure, so that the second light is exposed during the exposure. Conductive layer 1
-5 acts as an insulating layer. Therefore, the latent image charge 5 and the charge of the toner 6 as shown in FIG. 3 are insulated, the neutralization of the latent image charge 5 and the charge of the toner 6 is prevented, and a sufficient electrostatic restraining force is obtained. When the charge-removing light is irradiated to remove the toner remaining on the photoconductor 1 for recording on the backside of light, the second photoconductive layer 1-5 reacts to transfer the latent image charge 5 to the second photoconductive layer. 1-5, the toner is neutralized and discharged. Therefore, a clear image is formed.

【0013】また、第一の光導電層1−4がa−Siか
ら成るので、その長波長側の高感度特性によりLEDア
レーの発光波長に対する光感度を高めることができ、し
かも、その優れた光キャリア生成効率及び光キャリア高
移動度により画像露光に対する応答性に優れ、その結
果、鮮明な画像形成が行われることとなる。
Further, since the first photoconductive layer 1-4 is made of a-Si, the high sensitivity characteristic on the long wavelength side allows the photosensitivity to the emission wavelength of the LED array to be increased, and is excellent. Due to the photocarrier generation efficiency and the high photocarrier mobility, the responsiveness to image exposure is excellent, and as a result, clear image formation is performed.

【0014】[0014]

【実施例】図4は本発明の実施例の要部模式図である。
従来と同一個所の説明は省略する。従来と異なる部分
は、感光体1と除電光源4とである。感光体1は100
μm厚さのポリエチレンテレフタレートからなる透明基
体1-1 の上に、酸化インジウム蒸着膜の透明導電層1-2
を設け、更に光波長670nmで最大感度となる長波長
に高感度を有するa−Siから成る光導電層1-4 と、短
波長に高感度を有し厚さが1〜2μmのPVK−TNF
からなる光導電層1-5とで構成されている。
FIG. 4 is a schematic view of the essential portions of an embodiment of the present invention.
The description of the same parts as the conventional one will be omitted. The parts different from the conventional one are the photoconductor 1 and the charge eliminating light source 4. 100 for photoconductor 1
On a transparent substrate 1-1 made of polyethylene terephthalate having a thickness of μm, a transparent conductive layer 1-2 of an indium oxide deposited film is formed.
And a photoconductive layer 1-4 made of a-Si having a high sensitivity to a long wavelength, which has a maximum sensitivity at a light wavelength of 670 nm, and a PVK-TNF having a high sensitivity to a short wavelength and a thickness of 1 to 2 μm.
And a photoconductive layer 1-5.

【0015】なお、光導電層1-5 の材料は上記以外に、
短波長に高感度を有するものとして、Se、アゾ系染
料、アモルファスシリコンカーバイド等が上げられる。
画像露光手段として動作する画像露光装置3は、発光波
長670nmのLEDアレイとセルフォックレンズアレ
イの光学系とで構成されている。除電光源4は、光導電
層1-4 と1-5 の両方に高感度を与える光として、白色光
を出力する蛍光灯で構成してある。
The materials for the photoconductive layer 1-5 other than the above are
Se, azo dyes, amorphous silicon carbide and the like are listed as those having high sensitivity to short wavelengths.
The image exposure device 3 that operates as an image exposure unit includes an LED array having an emission wavelength of 670 nm and a selfoc lens array optical system. The static elimination light source 4 is composed of a fluorescent lamp that outputs white light as light that gives high sensitivity to both the photoconductive layers 1-4 and 1-5.

【0016】画像露光装置3が露光を行い潜像電荷を光
導電層1-4 の表面に生成する際に、光導電層1-5 は露光
の発光波長に感度が低いために、絶縁層として動作し、
潜像電荷とトナー電荷の中和を防止する。従って、静電
拘束力の強いトナーが感光体1に得られる。非露光部分
のトナーは、磁気ブラシ現像機2-3 で回収される。トナ
ー電荷と逆極性に印加された転写ローラ7によって記録
紙8に転写され定着器9にて定着が行われ記録画像が得
られる。
When the image exposure device 3 performs exposure to generate latent image charges on the surface of the photoconductive layer 1-4, the photoconductive layer 1-5 has a low sensitivity to the emission wavelength of the exposure, and thus serves as an insulating layer. Work,
Prevents neutralization of latent image charge and toner charge. Therefore, toner having a strong electrostatic restraint force is obtained on the photoconductor 1. The toner of the non-exposed portion is collected by the magnetic brush developing machine 2-3. A transfer roller 7 applied with a polarity opposite to that of the toner charges is transferred onto a recording paper 8 and is fixed by a fixing device 9 to obtain a recorded image.

【0017】転写の後に感光体1上に残留したトナー
は、除電光源4に至る。この除電光源4は光導電層1-4
と1-5 に高感度をもたらせる白色光を発生するので、残
留トナーと潜像電荷は光導電層1-5 を介して結合して中
和される。中和によって除電された残留トナーは、静電
拘束力を失い磁気ブラシ2-2 で充分な回収がなされるこ
ととなる。
The toner remaining on the photosensitive member 1 after the transfer reaches the charge eliminating light source 4. This static elimination light source 4 is a photoconductive layer 1-4.
The residual toner and latent image charge are combined and neutralized through the photoconductive layer 1-5, which produces white light which gives high sensitivity to 1 and 5. The residual toner that has been neutralized by neutralization loses the electrostatic restraint force, and is sufficiently collected by the magnetic brush 2-2.

【0018】また、a−Siから成る光導電層1-4 は、
その長波長側の高感度特性によりLEDアレーの発光波
長に対する光感度を高めることができた。しかも、感光
体1は現像手段2を通過する時間が短いが、その優れた
光キャリア生成効率及び光キャリア高移動度により画像
露光に対する応答性が向上し、その結果、鮮明な画像形
成が行われることとなる。
The photoconductive layer 1-4 made of a-Si is
Due to the high sensitivity characteristic on the long wavelength side, the photosensitivity to the emission wavelength of the LED array could be increased. Moreover, the photoconductor 1 passes through the developing means 2 for a short time, but its excellent photocarrier generation efficiency and high photocarrier mobility improve responsiveness to image exposure, resulting in clear image formation. It will be.

【0019】以上の説明は、画像露光と現像を同時に感
光体上に一様にトナーを付着させたのちに画像露光を行
う画像形成装置に用いても、何等支障されず同一効果を
得る。
In the above description, the same effect can be obtained without any problem even if the image forming apparatus is used in which the image exposure is performed and the image development is performed after the toner is uniformly adhered onto the photoreceptor.

【0020】[0020]

【発明の効果】以上の説明から明らかなように、本発明
によれば、潜像電荷とトナー電荷との中和が防止され、
トナー画像の静電拘束力が維持され、その上、LEDア
レーを用いた画像露光手段の使用に適するとともに、光
背面記録方式において画像露光に高い応答性を示し、ま
た、画像濃度の高い画像が得られるとともに、除電が光
源のみで充分行われ、画像品質を向上する上できわめて
有用である。
As is apparent from the above description, according to the present invention, neutralization of latent image charge and toner charge is prevented,
The electrostatic restraint force of the toner image is maintained, and besides, it is suitable for the use of image exposure means using an LED array, and shows a high responsiveness to image exposure in the optical backside recording system, and an image of high image density is obtained. In addition to being obtained, static elimination is sufficiently performed only by the light source, which is extremely useful in improving the image quality.

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

【図1】本発明の潜像電荷作成工程の原理図である。FIG. 1 is a principle diagram of a latent image charge creation process of the present invention.

【図2】本発明の現像工程の原理図である。FIG. 2 is a principle diagram of a developing process of the present invention.

【図3】本発明の除電工程の原理図である。FIG. 3 is a principle diagram of a static elimination step of the present invention.

【図4】本発明の実施例の要部模式図である。FIG. 4 is a schematic view of an essential part of an embodiment of the present invention.

【図5】従来の画像形成装置の潜像電荷作成工程図であ
る。
FIG. 5 is a process diagram of a latent image charge creation of a conventional image forming apparatus.

【図6】従来の画像形成装置の現像工程図である。FIG. 6 is a development process diagram of a conventional image forming apparatus.

【符号の説明】[Explanation of symbols]

1・・・感光体 1-1 ・・・透明基体 1-2 ・・・透明光導電層 1-3 ・・・光導電層 1-4 、1-5 ・・・光導電層 2-2 、2-3 ・・・磁気ブラシ現像機 3・・・画像露光手段 4・・・除電光源 1 ... Photoreceptor 1-1 ... Transparent substrate 1-2 ... Transparent photoconductive layer 1-3 ... Photoconductive layer 1-4, 1-5 ... Photoconductive layer 2-2, 2-3 ... Magnetic brush developing machine 3 ... Image exposure means 4 ... Static elimination light source

フロントページの続き (72)発明者 佐々木 幸雄 神奈川県川崎市中原区上小田中1015番地 富士通株式会社内 (72)発明者 木村 正利 神奈川県川崎市中原区上小田中1015番地 富士通株式会社内 (72)発明者 中島 淳三 神奈川県川崎市中原区上小田中1015番地 富士通株式会社内Front page continuation (72) Inventor Yukio Sasaki 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa, Fujitsu Limited (72) Inventor Masatoshi Kimura 1015, Kamedotachu, Nakahara-ku, Kawasaki, Kanagawa (72) Invention Person Nakajima Junzo 1015 Kamiodanaka, Nakahara-ku, Kawasaki City, Kanagawa Prefecture, Fujitsu Limited

Claims (9)

【特許請求の範囲】[Claims] 【請求項1】透明基体上に、透明或いは半透明導電層と
光導電層を順次積層するとともに、該光導電層を、画像
露光に光感度を有し且つa−Siから成る第一の光導電
層上に、第一の光導電層よりも画像露光に対する光感度
が低く且つ除電光に対する光感度を有する第二の光導電
層を積層して構成したことを特徴とする光背面記録用感
光体。
1. A transparent or semi-transparent conductive layer and a photoconductive layer are sequentially laminated on a transparent substrate, and the photoconductive layer is a first light having photosensitivity to image exposure and made of a-Si. A photosensitizer for optical backside recording, characterized in that a second photoconductive layer having a lower photosensitivity to image exposure than the first photoconductive layer and a photosensitivity to static elimination light is laminated on the conductive layer. body.
【請求項2】透明基体上に、透明或いは半透明導電層と
光導電層を順次積層するとともに、該光導電層を、画像
露光に光感度を有し且つa−Siから成る第一の光導電
層上に、第一の光導電層よりも画像露光に対する光感度
が低く且つ除電光に対する光感度が該画像露光に対する
光感度よりも高い第二の光導電層を積層して構成したこ
とを特徴とする光背面記録用感光体。
2. A transparent or semitransparent conductive layer and a photoconductive layer are sequentially laminated on a transparent substrate, and the photoconductive layer is a first light having photosensitivity to image exposure and made of a-Si. On the conductive layer, a second photoconductive layer having a lower photosensitivity to image exposure than the first photoconductive layer and a higher photosensitivity to static elimination light than the photosensitivity to the image exposure is laminated. Characteristic optical backside recording photoconductor.
【請求項3】透明基体上に、透明或いは半透明導電層と
光導電層を順次積層するとともに、該光導電層を、画像
露光手段の発光波長に光感度を有し、かつa−Siから
なる第一の光導電層上に、該第一の光導電層よりも画像
露光手段の発光波長に対する光感度が低く、かつ除電光
源の発光波長に対する光感度を有する第二の光導電層を
積層して構成したことを特徴とする光背面記録感光体。
3. A transparent or semi-transparent conductive layer and a photoconductive layer are sequentially laminated on a transparent substrate, and the photoconductive layer has photosensitivity to the emission wavelength of the image exposing means and is composed of a-Si. A second photoconductive layer having lower photosensitivity to the emission wavelength of the image exposure means than the first photoconductive layer and having photosensitivity to the emission wavelength of the static elimination light source, is laminated on the first photoconductive layer An optical back surface recording photoconductor characterized by being configured as described above.
【請求項4】透明基体上に、透明或いは半透明導電層と
光導電層を順次積層するとともに、該光導電層を、画像
露光手段の発光波長に光感度を有し、かつa−Siから
なる第一の光導電層上に、該第一の光導電層よりも画像
露光手段の発光波長に対する光感度が低く、かつ除電光
源の発光波長に対する光感度が該画像露光手段の発光波
長に対する光感度よりも高い第二の光導電層を積層して
構成したことを特徴とする光背面記録感光体。
4. A transparent or semitransparent conductive layer and a photoconductive layer are sequentially laminated on a transparent substrate, and the photoconductive layer has photosensitivity to the emission wavelength of the image exposure means and is made of a-Si. On the first photoconductive layer, the photosensitivity to the emission wavelength of the image exposure means is lower than that of the first photoconductive layer, and the photosensitivity to the emission wavelength of the static elimination light source is the light to the emission wavelength of the image exposure means. An optical backside recording photoconductor comprising a second photoconductive layer having a higher sensitivity than that of the photoconductive layer.
【請求項5】透明基体上に、透明或いは半透明導電層と
光導電層を順次積層するとともに、該光導電層を、画像
露光に光感度を有し且つa−Siから成る第一の光導電
層上に、第一の光導電層よりも画像露光に対する光感度
が低く且つ除電光に対する光感度を有する第二の光導電
層を積層して構成した感光体と、該感光体に対して光導
電層側に設けられた現像手段と、上記感光体を介して現
像手段と対向するように配置された画像露光手段と、除
電光源とを具備した画像形成装置。
5. A transparent or semitransparent conductive layer and a photoconductive layer are sequentially laminated on a transparent substrate, and the photoconductive layer is a first light having photosensitivity to image exposure and comprising a-Si. A photosensitive member formed by laminating a second photoconductive layer, which has a lower photosensitivity to image exposure than the first photoconductive layer and a photosensitivity to static elimination light, on the conductive layer, and to the photoconductor. An image forming apparatus comprising: a developing unit provided on the photoconductive layer side; an image exposing unit arranged so as to face the developing unit with the photoconductor interposed therebetween;
【請求項6】透明基体上に、透明或いは半透明導電層と
光導電層を順次積層するとともに、該光導電層を、画像
露光に光感度を有し且つa−Siから成る第一の光導電
層上に、第一の光導電層よりも画像露光に対する光感度
が低く且つ除電光に対する光感度が該画像露光に対する
光感度よりも高い第二の光導電層を積層して構成した感
光体と、該感光体に対して光導電層側に設けられた現像
手段と、上記感光体を介して現像手段と対向するように
配置された画像露光手段と、除電光源とを具備した画像
形成装置。
6. A transparent or semitransparent conductive layer and a photoconductive layer are sequentially laminated on a transparent substrate, and the photoconductive layer is a first light having photosensitivity to image exposure and made of a-Si. A photoconductor in which a second photoconductive layer having a lower photosensitivity to image exposure than the first photoconductive layer and a higher photosensitivity to static elimination light than the first photoconductive layer is higher than the photosensitivity to the image exposure. An image forming apparatus including: a developing unit provided on the photoconductive layer side of the photoconductor; an image exposing unit arranged so as to face the developing unit with the photoconductor interposed; and a charge eliminating light source. .
【請求項7】透明基体上に、透明或いは半透明導電層と
光導電層を順次積層して成る感光体と、該感光体に対し
て光導電層側に設けられた現像手段と、上記感光体を介
して現像手段と対向するように配置された画像露光手段
と、除電光源とを具備するとともに、上記光導電層を、
上記画像露光手段の発光波長に光感度を有し且つa−S
iから成る第一の光導電層上に、第一の光導電層よりも
上記画像露光手段の発光波長に対する光感度が低く且つ
除電光源の発光波長に対する光感度を有する第二の光導
電層を積層して構成したことを特徴とする画像形成装
置。
7. A photoreceptor comprising a transparent or semi-transparent conductive layer and a photoconductive layer sequentially laminated on a transparent substrate, a developing means provided on the photoconductive layer side of the photoreceptor, and the photosensitive material. An image exposing unit arranged to face the developing unit through the body, and a charge removal light source, and the photoconductive layer,
It has a photosensitivity to the emission wavelength of the image exposure means and has a-S
On the first photoconductive layer made of i, a second photoconductive layer having lower photosensitivity to the emission wavelength of the image exposure means and photosensitivity to the emission wavelength of the static elimination light source than the first photoconductive layer. An image forming apparatus comprising a stack of layers.
【請求項8】透明基体上に、透明或いは半透明導電層と
光導電層を順次積層して成る感光体と、該感光体に対し
て光導電層側に設けられた現像手段と、上記感光体を介
して現像手段と対向するように配置された画像露光手段
と、除電光源とを具備するとともに、上記光導電層を、
上記画像露光手段の発光波長に光感度を有し且つa−S
iから成る第一の光導電層上に、第一の光導電層よりも
上記画像露光手段の発光波長に対する光感度が低く且つ
除電光源の発光波長に対する光感度が上記画像露光手段
の発光波長に対する光感度よりも高い第二の光導電層を
積層して構成したことを特徴とする画像形成装置。
8. A photosensitive member comprising a transparent substrate and a transparent or semitransparent conductive layer and a photoconductive layer sequentially laminated on the transparent substrate, a developing means provided on the photoconductive layer side of the photosensitive member, and the photosensitive member. An image exposing unit arranged to face the developing unit through the body, and a charge removal light source, and the photoconductive layer,
It has a photosensitivity to the emission wavelength of the image exposure means and has a-S
On the first photoconductive layer made of i, the photosensitivity to the emission wavelength of the image exposure means is lower than that of the first photoconductive layer, and the photosensitivity to the emission wavelength of the static elimination light source is to the emission wavelength of the image exposure means. An image forming apparatus comprising: a second photoconductive layer having a higher photosensitivity, which is laminated.
【請求項9】前記除電光源の発光波長は、前記画像露光
手段の発光波長とは異なる波長を含むことを特徴とする
請求項7または請求項8記載の画像形成装置。
9. The image forming apparatus according to claim 7, wherein the emission wavelength of the charge eliminating light source includes a wavelength different from the emission wavelength of the image exposing means.
JP4016158A 1992-01-31 1992-01-31 Optical rear recording type image forming apparatus Expired - Lifetime JP2738787B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4016158A JP2738787B2 (en) 1992-01-31 1992-01-31 Optical rear recording type image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4016158A JP2738787B2 (en) 1992-01-31 1992-01-31 Optical rear recording type image forming apparatus

Publications (2)

Publication Number Publication Date
JPH0683143A true JPH0683143A (en) 1994-03-25
JP2738787B2 JP2738787B2 (en) 1998-04-08

Family

ID=11908703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4016158A Expired - Lifetime JP2738787B2 (en) 1992-01-31 1992-01-31 Optical rear recording type image forming apparatus

Country Status (1)

Country Link
JP (1) JP2738787B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5491228A (en) * 1975-07-10 1979-07-19 Canon Inc Electrophotographic method
JPS5898749A (en) * 1981-12-08 1983-06-11 Canon Inc Image forming device
JPS5898748A (en) * 1981-12-08 1983-06-11 Canon Inc Image forming method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5491228A (en) * 1975-07-10 1979-07-19 Canon Inc Electrophotographic method
JPS5898749A (en) * 1981-12-08 1983-06-11 Canon Inc Image forming device
JPS5898748A (en) * 1981-12-08 1983-06-11 Canon Inc Image forming method

Also Published As

Publication number Publication date
JP2738787B2 (en) 1998-04-08

Similar Documents

Publication Publication Date Title
US3734609A (en) Electrophotographic process and apparatus
JPH0683143A (en) Photosensitive body for optical back recording and image forming device
JP2705926B2 (en) Optical rear recording device
JP2617912B2 (en) Image recording device
JP2543499B2 (en) Image recording device
JPS5890651A (en) Electrophotographic method
JPS59222871A (en) Electrophotographic process
JPS61144676A (en) Image recorder
JPH04182657A (en) Electrophotographic device using amorphous silicon photosensitive material
JP3096992B2 (en) Image forming device
JPH0410601Y2 (en)
JPH0746244B2 (en) Image forming device
JP2636836B2 (en) Image recording method
JP2624235B2 (en) Image forming method
JP3316591B2 (en) Image recording device
JP2638182B2 (en) Image forming device
JPH01254973A (en) Image forming device formed by using photosensitive body consisting of amorphous silicon
JPS61144682A (en) Image recorder
JPH0673037B2 (en) Electrophotographic recording method
JPS6279476A (en) Image forming method
JPH054671B2 (en)
JPS62196679A (en) Electrophotographic copying method using memory photosensitive body
JPS6262350B2 (en)
JPS6285282A (en) Electrophotographic device
JPH0646322B2 (en) Image recorder

Legal Events

Date Code Title Description
A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 19961112

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term