JPS6051873A - Small-sized electrophotographic copying machine - Google Patents

Small-sized electrophotographic copying machine

Info

Publication number
JPS6051873A
JPS6051873A JP58158968A JP15896883A JPS6051873A JP S6051873 A JPS6051873 A JP S6051873A JP 58158968 A JP58158968 A JP 58158968A JP 15896883 A JP15896883 A JP 15896883A JP S6051873 A JPS6051873 A JP S6051873A
Authority
JP
Japan
Prior art keywords
original
electrophotographic photoreceptor
document
transparent
conductive 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
Application number
JP58158968A
Other languages
Japanese (ja)
Inventor
Masamichi Sato
正倫 佐藤
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP58158968A priority Critical patent/JPS6051873A/en
Publication of JPS6051873A publication Critical patent/JPS6051873A/en
Pending legal-status Critical Current

Links

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
    • G03G15/60—Apparatus which relate to the handling of originals
    • G03G15/605—Holders for originals or exposure platens

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To obtain excellent picture quality by forming a light transmitting conductive layer on at least either of an original supporter made of transparent plastic and a photosensitive body, and grounding it. CONSTITUTION:The original supporter 2 is constituted by forming the transparent conductive layer 2b on a transparent plastic film 2a, and this conductive layer 2b is grounded at a couple of rolls 3a and 3b. A film type electrophotographic sensitive body 4 for contact reflection exposure is positioned under the original supporter 2 and held wound around the couple of rolls 5a and 5b, and the photosensitive body is taken up around the roll 5b every time a copying processing is finished and rewound around the roll 5a after being taken up completely to be reused. A electrostatic charge of the original supporter 2 is destaticized completely, so the excellent picture guality is obtained.

Description

【発明の詳細な説明】 本発明は携？ＩＹ可能な程度に小型化した電子写真複写
機の改良に関し、透明グラスチックフィルムからなる原
稿支持体又は／及び電子写真感光体に不要の帯電が生じ
ないようにしたものである。[Detailed Description of the Invention] What is the present invention? This invention relates to an improvement in an electrophotographic copying machine that has been miniaturized to the extent possible for IY, and is designed to prevent unnecessary charging from occurring on a document support made of a transparent glass film and/or an electrophotographic photoreceptor.

近年、文書資料等の利用効率の向上のためこれらを複写
して用いることも多く種々の複写機が提案されると共に
実用に供されている。In recent years, various types of copying machines have been proposed and put into practical use in order to improve the utilization efficiency of documents and other materials.

本発明者にあっても小型・軽量・低コスト化を図ること
を目的として、従来のガラス板等で構成された原稿支持
体に代え透明プラスチックフィルムで構成することで大
型・大重量のガラス板等を廃止した複写ＰＡ（特願昭５
６−１３８３７９号）を提案しておシ、さらＫ、感光体
として原稿支持体を挾んで原稿面と密着させ感光体の背
面から光を照射すること（以下、密着反射露光という）
Ｋよ）感光体の表面に静電潜像が形成されるフィルム状
の電子写真感光体を用いることで投影照光光学系を不要
とした小型・軽量・低コストな電子写真複写イ呪′七を
開発している。The inventor of the present invention, with the aim of achieving miniaturization, light weight, and low cost, has replaced the conventional document support made of a glass plate, etc. with a transparent plastic film, thereby reducing the size and weight of the glass plate. Copy PA that abolished the
6-138379), the method is to sandwich a document support as a photoconductor and bring it into close contact with the surface of the document, and irradiate light from the back of the photoconductor (hereinafter referred to as close-contact reflection exposure).
K) By using a film-type electrophotographic photoreceptor in which an electrostatic latent image is formed on the surface of the photoreceptor, a compact, lightweight, and low-cost electrophotographic copying system that eliminates the need for a projection illumination optical system is realized. We are developing.

ところが、透明プラスチックフィルムでなる原相支持体
は一対のロールにより巻取可能の如く支持されているこ
とから、これらロールによって原稿支持体間相互の摩擦
や原稿面との摩擦により静電荷が生じる。また、表面が
帯電された１ａ子写真感光体との接触によっても原稿支
持体が帯゛１ｕされろことがある。However, since the original support made of a transparent plastic film is supported by a pair of rolls so as to be able to be wound up, static charges are generated by these rolls due to friction between the document supports and friction with the surface of the document. In addition, the document support may become charged due to contact with a 1a photoreceptor whose surface is charged.

このような原稿支持体の帯電が生じると、原稿が原稿支
持体に静電力で吸着され、原稿を静止状態とし原稿支持
体を移動する形式の電子写真複写機では、すべりが極め
て悪くなると共に！ｖ′７＋電潜像との間で放電が生ず
るおそれがあ）、仁の放電によって静電潜像が破壊され
て画質の低下を招くという欠点がある。When such a charge occurs on the document support, the document is attracted to the document support by electrostatic force, and in electrophotographic copying machines that keep the document stationary and move the document support, slipping becomes extremely difficult. There is a possibility that a discharge may occur between the electrostatic latent image and the v'7+ electrostatic latent image), and the electrostatic latent image is destroyed by the electric discharge, resulting in a deterioration in image quality.

本発明はかかる従来の欠点を解消し、透明プラスチック
フィルムからなる原稿支持体に不要の帯電が生しるこ七
が無＜　ｎｌ＋ｉ　Ｊ′ｆｔ、の良好な小型電子写真複
写後の提供を目的とする。かかる目的を達成する本発明
の溝成は、透明プラスチックフィルムからなる原稿支持
体と、この原稿支持体を挾んで原稿面と対向し且つ露光
位置で前記原稿支持体の裏面に密着すると共に背面から
照射される光で表面に静電潜像が形成される移動可能に
支持された電子写真感光体と、この電子写真感光体の表
面を帯電する帯電部と、前記原稿支持体および帯電され
た前記電子写真感光体を挾んで前記原稿面と前記露光位
置で対内し原稿面に光を照射して密着反射結党によシ前
記電子写真感光体の表面に原稿面の靜屯潜像を形成させ
る結党部と、この静電潜像をトナー現像する現像部と、
トナー像を転写媒体に転写する転写部と、トナー像を前
記転写媒体に定着させる定着部とを具えた小型電子写真
複写様において、前記原稿支持体と前記電子写真感光体
との少なくとも一方に不要の帯電を除去する透明導′！
ｆｌ慴を形成すると共にこの透明導電層を接地し／ここ
とを特徴とする。It is an object of the present invention to eliminate such conventional drawbacks and to provide an excellent small-sized electrophotographic copying apparatus which is free from unnecessary charging on a document support made of a transparent plastic film. The groove structure of the present invention that achieves this object includes a document support made of a transparent plastic film, which faces the surface of the document by sandwiching the document support, and which is in close contact with the back surface of the document support at the exposure position and which is exposed from the back side. a movably supported electrophotographic photoreceptor on whose surface an electrostatic latent image is formed by irradiated light; a charging unit that charges the surface of the electrophotographic photoreceptor; An electrophotographic photoreceptor is sandwiched between the original surface and the exposure position, and light is irradiated onto the original surface to form a silent latent image of the original surface on the surface of the electrophotographic photoreceptor by means of close reflection formation. a developing section that develops the electrostatic latent image with toner;
In a compact electrophotographic copying system that includes a transfer section that transfers a toner image to a transfer medium and a fixing section that fixes the toner image to the transfer medium, at least one of the document support and the electrophotographic photoreceptor is not required. Transparent conductor that removes static electricity!
The transparent conductive layer is grounded while forming a fl panel.

以下、本発明の一実施例を図面に基づき詳細に説明する
。Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

第１図は本発明の小型電子写真複写機の一実施例にかか
る概略構成図である。FIG. 1 is a schematic diagram of an embodiment of a compact electrophotographic copying machine according to the present invention.

複写される原稿面が下向きに当接するように原稿ｌを載
置する原稿支持体２は、例えば、ポリエチレンテレフタ
レートフィルムのような透明な長尺の薄膜で形成され、
その両端が一対のロール３ａ　、３ｂに巻き掛けられて
一定の張力で張られた状態となっている。The document support 2 on which the document I is placed so that the surface of the document to be copied faces downward is formed of a transparent long thin film such as polyethylene terephthalate film, for example.
Its both ends are wound around a pair of rolls 3a and 3b and are kept under constant tension.

この原稿支持体２は、第２図（ａ＋　（ｂ）にそれぞれ
拡大して示すよう罠、透明プラスチックフィルム２ａの
表面に透明導電層２ｂが形成されるか、あるいは透明プ
ラスチックフィルム２ａの内部に透明導電Ｊｒ４２ｂが
形成しである。この透明プラスチックフィルム２ａとし
ては１例えば厚さが１５〜２００μｍ好ましくは２５〜
１００μｍのポリエチレンフタレートフィルムやポリカ
ーボネートフィルム等を用い、透明導電層２ｂは、酸化
錫、酸化インジウムあるいはヨウ化鋼等の導電体を蒸着
することによシ形成したり、これら導電体の微粒子をポ
リマーに分散した液を透明プラスチックフィルム２ａに
塗布することＫよシ形成する。そして、この透明導電層
２ｂが一対のロール３ａ、３ｂ部分で接地しである。As shown in FIG. 2(a+(b)), this document support 2 has a trap, a transparent conductive layer 2b is formed on the surface of a transparent plastic film 2a, or a transparent conductive layer 2b is formed inside the transparent plastic film 2a. A conductive film 42b is formed.The transparent plastic film 2a has a thickness of, for example, 15 to 200 μm, preferably 25 to 200 μm.
Using a 100 μm polyethylene phthalate film, polycarbonate film, etc., the transparent conductive layer 2b is formed by vapor-depositing a conductor such as tin oxide, indium oxide, or steel iodide, or by forming fine particles of these conductors into a polymer. A transparent plastic film 2a is coated with the dispersed liquid to form a film. This transparent conductive layer 2b is grounded at the portions of the pair of rolls 3a and 3b.

この原稿支持体２の下方には、密着反射露光用のフィル
ム状をなす電子写真感光体４が位置しておシ、この電子
写真感光体４の両端は一対のロール５ａ、５ｂに巻き掛
けられた状態となっている。本実施例では、図示しない
巻き取シ用の駆動源が口〜ル５ｂに連結され、複写工程
の度にロール５ａから電子写真感光体４を一定長さずつ
ロール５ｂに巻き取って行くようになっているが、正逆
転可能な駆動源をそれぞれのロール５ａ、５ｂに連結し
、複写工程の度に繰り出し側のロール５ａに戻すかある
いは巻き込み側のロール５ｂに全部巻き取った後に再び
繰少出し側のロール５ａに巻き戻して再使用するように
しても良い。さらに、図示省略したが、電子写真感光体
４の両端を接続した無端ベルト状として循環再使用する
ようにしても良い。An electrophotographic photoreceptor 4 in the form of a film for close reflection exposure is located below the document support 2, and both ends of the electrophotographic photoreceptor 4 are wound around a pair of rolls 5a and 5b. The situation is as follows. In this embodiment, a winding drive source (not shown) is connected to the opening 5b, and is configured to wind the electrophotographic photoreceptor 4 from the roll 5a to the roll 5b by a certain length each time a copying process is performed. However, a drive source capable of forward and reverse rotation is connected to each of the rolls 5a and 5b, and is returned to the feeding-side roll 5a each time a copying process is performed, or is fed again after being completely wound onto the winding-side roll 5b. It may be rewound onto the roll 5a on the output side and reused. Further, although not shown, the electrophotographic photoreceptor 4 may be reused as an endless belt with both ends connected.

この密着反射露光可能な電子写Ｘ感光体４としては、例
えば、特開昭５２−７８４４３号公報に記載されでいる
ように、プラスチックフィルム等の可撓性透明支持体上
に透明部と遮光部とを４１する網状不透明層、透明性導
電Ｊ−および可撓性透明支持体側から照射した光を透過
させることのできる透明光導電層が設けられたものを使
用することができ、他にも密着反射〉露光で十分に大き
なコントラストを得ることができる電子写真感光体を用
いることができる（＠開昭５７−１０９９５３号、同５
７−１０９９５４号管）。The electrophotographic X photoreceptor 4 capable of close reflection exposure is, for example, as described in Japanese Patent Laid-Open No. 52-78443. It is possible to use a material that is provided with a net-like opaque layer that has 41 layers, a transparent conductive layer, and a transparent photoconductive layer that can transmit light irradiated from the side of the flexible transparent support. Reflection> An electrophotographic photoreceptor that can obtain a sufficiently large contrast upon exposure can be used (@kaisho 57-109953, same 5
7-109954).

また、原稿支持体２の原稿１と接する表面および′ｔト
子写真感光体４の裏面には、それぞれ四フッ化エチレン
樹脂等の摩擦係数が極めて小さい部材の薄膜が形成され
、原稿支持体２や電子写真感光体４が滑らかに移動する
ようＫしてもよい。Further, a thin film of a material having an extremely small coefficient of friction, such as tetrafluoroethylene resin, is formed on the surface of the document support 2 in contact with the document 1 and the back surface of the photographic photoreceptor 4. Alternatively, the electrophotographic photoreceptor 4 may be moved smoothly.

原稿支持体２および電子写真感光体４を挾んで原稿１と
対向し且つ電子写真Ａｔ（光体４のセフ６面と接するよ
う円筒状で透明な透明シリンダ６が回転自在に設けられ
、この透明シリンダ６の内部にスリット７が形成され固
定状態の反射鏡８および露光光源９が備えられてに′６
光部ｌＯが構成されている。そして、透明７リンダ６ｔ
よ露光時一端から他端へ反時計方向に回転し、なから移
動し、露光が終了したのち電子写真感光体４に当接しな
がら逆回転もしくは固定状態のまま一端に戻されるよう
になっている。この透明シリンダ６としては、例えばガ
ラス、石英、耐熱ガラス、プラスチック等により形成す
れば良い。A cylindrical transparent cylinder 6 is rotatably provided so as to face the original 1 with the original support 2 and the electrophotographic photoreceptor 4 in between, and to be in contact with the back surface 6 of the electrophotographic At (light body 4). A slit 7 is formed inside the cylinder 6, and a fixed reflecting mirror 8 and an exposure light source 9 are provided.
An optical section IO is configured. And transparent 7 cylinder 6t
During exposure, it rotates counterclockwise from one end to the other, moves from one end to the other, and after exposure is complete, it rotates in the opposite direction while contacting the electrophotographic photoreceptor 4 or returns to one end while remaining fixed. . The transparent cylinder 6 may be made of, for example, glass, quartz, heat-resistant glass, plastic, or the like.

また、露光部としては、スリット式の光源に代え、図示
省略したが、原稿支持体を介して電子写真感光体が原稿
と密着されるよう昇降装置によシ昇降可能とされたエレ
クト「Ｉルミネセンス（電場発光）による面光源となる
ライト・くネルを設けても良く、この２イトパネルとし
ては、例えば、導電性の裏板と螢光体が埋設された透明
な導電性フィルム七を重ね合わせ、螢光体への印加Ｗ’
ｉ圧や周波数を変えることでその明るさをｎ１ｌＪ御す
るもの等を用いる。The exposure section was replaced with a slit-type light source, and although not shown, an electrophotographic photoreceptor was used that could be raised and lowered by a lifting device so that the electrophotographic photoreceptor came into close contact with the original through the original support. A light tunnel may be provided as a surface light source using sense (electroluminescence), and this two-light panel may, for example, be made by laminating a conductive back plate and a transparent conductive film in which a phosphor is embedded. , the application W' to the phosphor
A device that controls the brightness by changing the i pressure or frequency is used.

この１１１子写Ａ感光体４の露光部１ｏよシも前方のロ
ール５ａ側には、電子写真感光体４の表面を静電気帯電
させるコロナ帯電法や接触帯電法等の公知の帯電法を用
いた帯電器１１が電子写真感光体４に隣接して設置しで
ある。また、露光部１０の後方には、ｈ光位置で゛電子
写真感光体４の表面に形成される靜を潜像をトナー現像
する一成分磁気ブラシ現像法や二成分磁気ブラシ現像法
等の公知の現像法を用いた現像器１２と、電子写真感光
体４のトナー像を転写媒体である複写用紙１３に転写さ
せる転写器１４と。A known charging method such as a corona charging method or a contact charging method for electrostatically charging the surface of the electrophotographic photoreceptor 4 was used on the roll 5a side in front of the exposure section 1o of the 111 photoreceptor A photoreceptor 4. A charger 11 is installed adjacent to the electrophotographic photoreceptor 4. Further, at the rear of the exposure section 10, there is a known method such as a one-component magnetic brush development method or a two-component magnetic brush development method in which a latent image formed on the surface of the electrophotographic photoreceptor 4 is developed with toner at the h light position. a developing device 12 using a developing method; and a transfer device 14 that transfers the toner image on the electrophotographic photoreceptor 4 to copy paper 13, which is a transfer medium.

転写後の電子写真感光体４の表面に残留しているトナー
の静電気を除く除電器１５と、さらに、１、ＴＥ子写−
Ａ：感光体４に付着しているトナーを除くクリーナ１６
とが順に電子写真感ブを体４に隣接して設けである。ま
た、現像器１２においては、静電潜像の電荷部分にトナ
ーを付着させる正現像かあるいは静電潜像以外の非電荷
部分にトナーを付着させる反転現像を任意に選択できる
ようになっている。A static eliminator 15 removes static electricity of toner remaining on the surface of the electrophotographic photoreceptor 4 after transfer;
A: Cleaner 16 that removes toner adhering to the photoreceptor 4
In turn, an electrophotographic sensor is provided adjacent to the body 4. Further, in the developing device 12, it is possible to arbitrarily select between normal development, in which toner is attached to the charged portion of the electrostatic latent image, or reverse development, in which toner is attached to non-charged portions other than the electrostatic latent image. .

また、転写器１４の前方には、複写用紙１３を収納した
紙カセッ）１７が配置され、複写用紙１３は給紙コロ２
４によりカセット１７から繰シ出され、次いで電子写真
感光体４の走行速度と同期して回転し得る上下一対のピ
ンチロー２１８によシ転写部に送られる。複コｌＪ用オ
ｉｔ：１３の出１」側には、定着器１９として一対の定
着ローラ２０が設けられ、一方のローラ（トナ一体側）
に埋設されたヒータで複写用紙１３上のトナーを熱融着
により定着するようになっている。Further, in front of the transfer device 14, a paper cassette (17) containing the copy paper 13 is arranged, and the copy paper 13 is transferred to the paper feed roller 2.
4 from the cassette 17, and then sent to the transfer section by a pair of upper and lower pinch rows 218 that can rotate in synchronization with the traveling speed of the electrophotographic photoreceptor 4. A pair of fixing rollers 20 are provided as a fixing device 19 on the side of output 1 of 13, one roller (on the toner-integrated side).
The toner on the copy paper 13 is fixed by heat fusion using a heater embedded in the copy paper 13.

定着方法としては本実施例のような熱融着の他に圧着に
よっても可能である。As a fixing method, in addition to heat fusion as in this embodiment, pressure bonding can also be used.

また、本実施例では薄い原稿１に対してこれケ結党（５
Ｌ置へ自動的に送勺込む原稿搬送装置２］が原１１１％
支持体２の上方に着脱自在もしくけ開閉可能に設けられ
でおル、この原稿搬送装置２１は駆動回転される一対の
ローン２２ａ、２２ｂとこれらに巻き川けられて摩損（
力によシ原稿１を原９７′４支持体２上で搬送する搬送
ベルト２３とで構成きれている。したがって、本等の厚
い原に１６１を原稿支持体２に載せる場合には、原稿搬
送装置２１を取り外すか、あるいは開いた状態としてお
くことが望ましい。あ″！、シ厚くない原稿なら取除か
なくてもよい。In addition, in this embodiment, for the thin original 1, these numbers (5
[Document transport device 2 that automatically feeds the paper to the L position] is 111% original.
The document conveying device 21 is provided above the support 2 in a detachable and openable/closable manner.
It consists of a conveyor belt 23 that conveys the original 1 on the original 97'4 and the support 2 by force. Therefore, when placing the document 161 on the document supporter 2 on a thick original such as a book, it is desirable to remove the document conveyance device 21 or leave it in an open state. Ah, if the original is not thick, there is no need to remove it.

かように構成した小型電子複写機では、複写作業に際し
て、図示しない複写スイツプ−を入れて原＋１％１を原
稿搬送装置２１に入れると、これを検出して原稿搬送装
置２１のローラ２２ａ。In the compact electronic copying machine configured as described above, when a copying switch (not shown) is inserted and an original +1%1 is put into the document transport device 21 during a copying operation, this is detected and the roller 22a of the document transport device 21 is activated.

２２ｂが駆動されると同時に帯電器１１に−Ｃ電子写真
感光体４がコロナ帯１Ｅ等により静電気帯電されて原稿
支持体２とともに送力用される。At the same time as 22b is driven, the -C electrophotographic photoreceptor 4 is electrostatically charged by the charger 11 by the corona band 1E, etc., and is sent together with the document support 2.

そして、露光位置、すなわちｈ先部１０のスリット７部
分にて原稿支持体２を介して原稿Ｊと電子写真感光体４
とが密着されるとともに光源９によって照射される光に
よって密着反射露光され電子写真感光体４に静電潜像が
形成される。Then, at the exposure position, that is, at the slit 7 portion of the h-tip portion 10, the original J and the electrophotographic photoreceptor 4 are passed through the original support 2.
The electrostatic latent image is formed on the electrophotographic photoreceptor 4 by contact reflection exposure with the light irradiated by the light source 9.

こうして原稿１を送シながら静電潜像が連続して形成さ
れた電子写真感光体４−：現丙゛器１２に送られ、例え
ば山気フラン現像によってトナー像が形成され転写器１
４に）λられる。転写器１４では、ピンチローラ１８に
よって送り出された複写用紙１３に電子写真感光体４上
のトナー像が転写され、複写用紙１３は定着器１９を経
て機外圧送出される、一方、転写後の電子写真感光体４
は除電器１５に送られて残留する静電気が除かれ、さら
にクリーナ１６に送られて付着しているトナーが取シ除
かれてロール５ｂに巻き取られる。In this way, the electrophotographic photoreceptor 4--on which electrostatic latent images are continuously formed while the original 1 is being fed is sent to the developing device 12, where a toner image is formed by, for example, Yamaki Furan development and transferred to the transfer device 1-.
4). In the transfer device 14, the toner image on the electrophotographic photoreceptor 4 is transferred to the copy paper 13 sent out by the pinch roller 18, and the copy paper 13 is sent out under pressure outside the machine via the fixing device 19. Photographic photoreceptor 4
is sent to a static eliminator 15 to remove residual static electricity, and further sent to a cleaner 16 to remove attached toner, and then wound onto a roll 5b.

このような複写工程によって、原稿支持体２０表面にロ
ール３ａ、ａｂの摩擦や原稿１との摩擦によって静電荷
が生じることがあっても、この静電荷を原稿支持体２表
面の４．〉地された透明導電層２ｂもしくは内部のＪ・
２Ｊ１ハされた透明導ＴＪ！、／１Ｗ２ｂを介して除電
することができ、放ｔ［Ｌによる静電潜像の破壊を防止
でき画質の低下を招くことがない。In such a copying process, even if static charges are generated on the surface of the document support 20 due to friction between the rolls 3a and ab and friction with the document 1, this static charge is transferred to the 4. 〉Grounded transparent conductive layer 2b or internal J.
2J1 ha transparent conductor TJ! , /1W2b, the electrostatic latent image can be prevented from being destroyed by the discharge t[L, and the image quality will not deteriorate.

尚、本実施例では、原稿支持体２０表面もしくは内部に
透明導電層２ｂを形成したもので説明したが、電子写−
１ｌＧ感光体４の裏面に透明導電層をＭｊ槁支持体２の
透明Ｎ＃導電層ｂと同様に形成してこれを接地するよう
にしても不要の帯電を防止することができる。In this embodiment, the transparent conductive layer 2b is formed on the surface or inside of the document support 20.
Unnecessary charging can also be prevented by forming a transparent conductive layer on the back surface of the 11G photoreceptor 4 in the same manner as the transparent N# conductive layer b of the Mj support 2 and grounding it.

以上、実施例とともに具体的に説明したように本発明に
よれば、原稿支持体として透明プラスチックフィルムを
用いると共に電子写真感光体として密着反射結党を行な
う小型電子写真複ス、４４Ｃ＋において、原稿支持体と
電子写真感光体との少なくとも一方に不要の帯電を除去
する透明導電層を形成してこれを接地したので、原稿支
持体に不要の帯電が生じ、原稿支持体の移ｒ力が困か１
ｔとなったシ放電によシ静電潜像が破壊され画質が低下
することを防止できる。As described above in detail with the embodiments, according to the present invention, in the small electrophotographic duplex, 44C+, which uses a transparent plastic film as the original support and performs close reflection formation as the electrophotographic photoreceptor, the original support is Since a transparent conductive layer is formed on at least one of the photosensitive member and the electrophotographic photoreceptor and is grounded to remove unnecessary charge, unnecessary charge is generated on the document support, causing problems with the transfer force of the document support.
It is possible to prevent the electrostatic latent image from being destroyed and the image quality to deteriorate due to the discharge that has reached t.

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

第１図は本発明の小型電子写真複写機の一実施例にかか
る概略構成図、第２図（ａ）　（ｂ）はそれぞれ原稿支
持体と電子写真感光体との拡大図である。 図面中、 １は原稿。 ２は原稿支持体、 ２ａは透明プラスチックフィルム、 ２ｂは透明導電層、 ４は電子写真感光体。 １０は鮨光部、 １１は帯電器、 ｊ２は現像器、 １３は複写用紙、 １４は転写器、 １５は除電器、 工６はクリーナ部、 １９は定着器、 ２１は原稿搬送装置である。 特許出願人 富士写真フィルム株式会社 代理人 弁理士　光　石　士　部　（他１名） 手続補正書 昭和５８年１り月／２日 特許庁長官殿 １、　事イ′Ｉの表示 昭和５８年特　許　願第１５８９６８号昭和　年審　判
第　号 ２、始明の名称 小型電子写真複写機 ３、ｈｌｉ正をする者 ′財ｑ＝との関停　特　ｔＩ！ｆ　出　願　人神余用県
南足柄市中沼２１０誉地 （５２０）富士写真フィルム株式会社 ４、代理人 郵便番号１０７ ６、補正の対象 明＃Ｉ誉の「発明の詳細な説明」の欄。 ７．１！正の円答 （１）　明細ＩＦ３頁６頁目行目支持体は」を「支持体
が」と補正する。 （２）ＢＡ細書３頁７行目の「されていることから」を
「されている場合」と補止する。 （３）　明細誉１０頁１行目の「静電潜像以外」を「静
電潜像」と補正する。 以上FIG. 1 is a schematic diagram of an embodiment of a compact electrophotographic copying machine of the present invention, and FIGS. 2(a) and 2(b) are enlarged views of a document support and an electrophotographic photoreceptor, respectively. In the drawing, 1 is the manuscript. 2 is an original support, 2a is a transparent plastic film, 2b is a transparent conductive layer, and 4 is an electrophotographic photoreceptor. Reference numeral 10 designates a light section, 11 a charger, j2 a developer, 13 copy paper, 14 a transfer device, 15 a static eliminator, 6 a cleaner section, 19 a fixing device, and 21 a document transport device. Patent Applicant Fuji Photo Film Co., Ltd. Representative Patent Attorney Shibu Mitsuishi (and 1 other person) Procedural Amendments January/2nd, 1982 To the Commissioner of the Japan Patent Office 1. Indication of Matters 'I' 1988 Patent Petition No. 158968, Showa Year Trial No. 2, Shimei's name Small electrophotographic copying machine 3, Suspension of relations with those who make hli correction Special tI! f Application Fuji Photo Film Co., Ltd. 210 Homachi (520), Minamiashigara City, Hitokami-Yoyo Prefecture, Agent postal code 107-6, subject of amendment Mei #I Homare's "Detailed Description of the Invention" column. 7.1! Positive circle answer (1) In the specification IF, page 3, line 6, amend "The support is" to "The support is". (2) "Because it has been done" on page 3, line 7 of the BA specification is supplemented with "if it has been done." (3) "Other than electrostatic latent image" in the first line of page 10 of the specification is corrected to "electrostatic latent image."that's all

Claims (1)

【特許請求の範囲】[Claims] 透明プラスチックフィルムからなる原稿支持体と、この
原稿支持体を挾んで原稿面と対向し且つ露光位置で前記
原稿支持体の裏面に密着すると共に背面から照射される
光で表面に静電潜像が形成される移動可能に支持された
電子写真感光体と、この電子写真感光体の表面を帯電す
る帯電部と、前記原稿支持体および帯電された前記電子
写真感光体を挾んで前記原稿面と前記露光位置で対向し
原稿面に光を照射して密着反射鈷光によシ前記電子写真
感光体の表面に原稿面の静電潜像を形成させる露光部と
、この静電潜像をトナー現像する現像部と、トナー像を
転写媒体に転写する転写部と、トナー像を前記転写媒体
に定着させる定着部とを具えた小型電子写真複写機にお
いて、前記原稿支持体と前記電子写真感光体との少なく
とも一方に不要の帯電を除去する透明４電層を形成する
と共にこの透明導電層を接地したことを特徴とする小型
電子写真複写機。An original support made of a transparent plastic film, which is sandwiched between the original support and faces the original surface, is in close contact with the back side of the original support at the exposure position, and an electrostatic latent image is formed on the surface by light irradiated from the back side. A movably supported electrophotographic photoreceptor is formed, a charging unit charges the surface of the electrophotographic photoreceptor, and the original support and the charged electrophotographic photoreceptor are sandwiched between the original surface and the electrophotographic photoreceptor. an exposure section which faces the document surface at an exposure position and forms an electrostatic latent image of the document surface on the surface of the electrophotographic photoreceptor by irradiating light onto the surface of the document using close-contact reflected light; A small electrophotographic copying machine comprising a developing section for transferring a toner image to a transfer medium, a transfer section for transferring a toner image to a transfer medium, and a fixing section for fixing the toner image to the transfer medium. 1. A small electrophotographic copying machine characterized in that a transparent four-electroconductive layer is formed on at least one of the foregoing to remove unnecessary charge, and the transparent conductive layer is grounded.
JP58158968A 1983-09-01 1983-09-01 Small-sized electrophotographic copying machine Pending JPS6051873A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58158968A JPS6051873A (en) 1983-09-01 1983-09-01 Small-sized electrophotographic copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58158968A JPS6051873A (en) 1983-09-01 1983-09-01 Small-sized electrophotographic copying machine

Publications (1)

Publication Number Publication Date
JPS6051873A true JPS6051873A (en) 1985-03-23

Family

ID=15683301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58158968A Pending JPS6051873A (en) 1983-09-01 1983-09-01 Small-sized electrophotographic copying machine

Country Status (1)

Country Link
JP (1) JPS6051873A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6332210A (en) * 1986-07-25 1988-02-10 Fuji Denki Sousetsu Kk Waste combustion system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6332210A (en) * 1986-07-25 1988-02-10 Fuji Denki Sousetsu Kk Waste combustion system

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