JPS58142350A - Electrostatic copying apparatus used for contact exposure of light transmitting original - Google Patents

Electrostatic copying apparatus used for contact exposure of light transmitting original

Info

Publication number
JPS58142350A
JPS58142350A JP2566182A JP2566182A JPS58142350A JP S58142350 A JPS58142350 A JP S58142350A JP 2566182 A JP2566182 A JP 2566182A JP 2566182 A JP2566182 A JP 2566182A JP S58142350 A JPS58142350 A JP S58142350A
Authority
JP
Japan
Prior art keywords
light
contact
color
image
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
JP2566182A
Other languages
Japanese (ja)
Inventor
Hideo Oba
大庭 秀夫
Shusaku Yoshida
吉田 収作
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP2566182A priority Critical patent/JPS58142350A/en
Publication of JPS58142350A publication Critical patent/JPS58142350A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/04Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material

Abstract

PURPOSE:To execute test printing of a large-sized color printing plate, by installing a contact exposing device also used for an original feeding roll, in contact with a photosensitive drum. CONSTITUTION:A color printing original plate sheet S is fed with a light-transmitting cylinder 21 used also for a feed roll, and a conveyor belt 211, and a photosensitive drum surface 11 is exposed to a light emitted from an exposure lamp 22 through a slit 231 and the sheet S. This electrostatic latent image is developed with a color toner developing device 12, and transferred onto a transfer paper sheet 31 attached to a transfer drum 30 with a gripper 32. The color toner is exchanged and 3 primary color toner images are transferred on the same transfer paper sheet to prepare a test printed copy for confirming color tones when the actual color print is finished. The drum 30 stands still with its cutoff part 3D directed to the surface 11 of the photosensitive drum, and when a register pin is engaged with a lever 35, its rotation is started.

Description

【発明の詳細な説明】 本発明は、帯電した光導電性感光体表面に原稿を密着、
露光し、続いて感光体表面を現像することによって、ト
ナー像を形成し、更に該トナー像を転写紙に転写して画
像を配録する静電複写装置、特に大版の多色分解原版等
から、同一転写紙上にトナー像を多重転写するに適した
静電複写装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for attaching an original document to the surface of a charged photoconductive photoreceptor;
An electrostatic copying device that forms a toner image by exposing to light and then developing the surface of a photoreceptor, and further transfers the toner image to transfer paper to record the image, especially a large-sized multicolor separation original plate, etc. The present invention relates to an electrostatic copying apparatus suitable for multiple transfer of toner images onto the same transfer paper.

多色分解原版を用いて多色印刷する場合に1本印刷にか
\る前に色合せ等の試し刷りによって印刷条件が決めら
れるのが通例であるが印刷機を用いての試し刷りは煩雑
で工数のか\るものである。
When printing in multiple colors using a multicolor separation master plate, it is customary to determine the printing conditions by trial printing such as color matching before printing a single print, but trial printing using a printing machine is complicated. That's a lot of man-hours.

この煩雑さを避けるため、近時頓に利便さを増し且つ処
理が迅速となったカラー静電複写法を採り入れて試し刷
りを行う動きが現われて来ている。
In order to avoid this complexity, there has recently been a movement to perform trial printing by adopting color electrostatic copying, which has become more convenient and faster in processing.

この場合多色分解原版は一般に大版であるため従来にお
いては大がかりな装置となってしまっていた。
In this case, since the multicolor separation master plate is generally a large plate, conventionally the apparatus has been large-scale.

従来この用に供される静電複写装置は、一般に平板状の
光導電性感光体を用いた平面型であって、該感光体平面
上に順次、帯電、原版レジスト合せ載置、露光、原版取
外し、現像、転写紙レジスト合せ載置続いて転写、転写
紙取外しの各工程を、多色刷り回数だけ、毎回レジスト
位置から殆どフリ一の状態になる取扱い憎い原版、転写
紙の平面シートを手作業で取扱いながら繰返し、最終回
転写後に画像を定着し色画像を作成しているのが現状で
ある。
Conventionally, electrostatic copying apparatuses used for this purpose are generally flat type using a flat photoconductive photoreceptor, and the photoreceptor is sequentially charged, an original resist is placed on the flat surface, exposed, and the original is placed on the flat surface of the photoreceptor. The process of removing, developing, aligning the transfer paper with the resist, then transferring and removing the transfer paper is performed by hand for the number of times of multi-color printing, and the original plate and transfer paper flat sheet, which are difficult to handle and are almost completely free from the resist position, are removed each time. Currently, a color image is created by repeatedly handling the image and fixing the image after the final transfer.

上述した作業は、印刷機による試し刷りに比べ簡略、迅
速になったとは言っても、数枚の色分解原版及び転写紙
を静電潜像及び未定着トナー像に損傷を与えることなく
安全に且つ確実にレジスト合せ、載置、取外し等を行う
ことは、尚煩雑で且つ慎重な仕事運びが必要である。
Although the above-mentioned process is simpler and faster than test printing using a printing machine, it is still possible to safely print several color separation master plates and transfer paper without damaging the electrostatic latent images and unfixed toner images. Moreover, it is still complicated and requires careful work to perform resist alignment, placement, removal, etc. reliably.

また平面型の複写装置は、大版用になる程設置のための
床面積をとり、またその装置周りでの作業勝手は甚だ悪
くなっていた。
In addition, the larger the size of a flat copying device, the more floor space is required for its installation, and the convenience of working around the device is extremely poor.

前記した現状に照らし、本発明はコンパクトで作業性が
よく、しかも多重転写を安全、確実、簡便に行いうる静
電複写装置、特に透光原稿からの多重転写に適した密着
1#亨襟写装置を提供することを目的としている。
In light of the above-mentioned current situation, the present invention is an electrostatic copying device that is compact, has good workability, and can perform multiple transfers safely, reliably, and easily, and is particularly suitable for multiple transfers from translucent originals. The purpose is to provide equipment.

前記した本発明の目的は、光導電性感光体を用いた儂担
持体表面に透光原稿を密着させ露光する密着露光装置と
、該偉担持体表面に形成された静電潜像を現像し可視化
した後、該像担持体上の画像を転写させる転写ドラムと
を有する透光原稿の密着静電複写装置によって達する仁
とができる。
The object of the present invention described above is to provide a contact exposure device for exposing a translucent original in close contact with the surface of a support using a photoconductive photoreceptor, and for developing an electrostatic latent image formed on the surface of the support. After the image is visualized, an image is produced by a contact electrostatic copying device for translucent originals having a transfer drum for transferring the image on the image carrier.

また本発明の好しい態様として、前記密着露光装置の密
着露光部材に透光原稿の搬送の役を兼ねさせ、或は前記
転写ドラムに切欠きを設はレジスト合せを簡便にする機
構を付与することができる。
In a preferred embodiment of the present invention, the contact exposure member of the contact exposure device also serves as a conveyor for a translucent original, or the transfer drum is provided with a mechanism that facilitates registration by providing a notch. be able to.

次に本発明を一実施例に基いて具体的に説明する。第1
図は本発明の一実施例の概略構成を示す一部破断側面図
である。1は静電潜像及びトナー像を形成、担持する像
担持体を主要部とする像形成部である。11は像担持体
であり、ここでは光導電性感光体(以後単に感光体と称
する)である。
Next, the present invention will be specifically explained based on one embodiment. 1st
The figure is a partially cutaway side view showing a schematic configuration of an embodiment of the present invention. Reference numeral 1 denotes an image forming section whose main part is an image carrier that forms and carries an electrostatic latent image and a toner image. Reference numeral 11 denotes an image carrier, which is a photoconductive photoreceptor (hereinafter simply referred to as photoreceptor).

酸化亜鉛、セレン、硫化カドミウム或はOPC等の無機
或は有機の光導電性半導体が使用される。
Inorganic or organic photoconductive semiconductors such as zinc oxide, selenium, cadmium sulfide or OPC are used.

また感光体11はドラム支持体固定(着)して設け11
・1゜ ても或はマスター・ベーパなどの形として着脱可能とし
てもよい。今、引用している実施例に於て   ゛はド
ラム形状の支持体に酸化亜鉛マスター・ベーパを張付け
たものである。
Further, the photoreceptor 11 is fixed (attached) to a drum support 11.
・It may be detachable in the form of a master vapor or the like. In the example cited now, zinc oxide master vapor is applied to a drum-shaped support.

12は現像器であって、カラー複写等でカラー−トナー
像の多重転写を行う必要のある時には、所要のカラー・
トナーの現像器を像担持体1の面に沼って必要数だけ連
装して離接可能とするか、着脱若しくは切換機構を設け
、各色の、例えば黄色、マゼンタ、シアン及び墨色のト
ナーによって転写すべきカラー・トナー像を形成する。
Reference numeral 12 denotes a developing device, which is used to transfer the required color and toner images when it is necessary to perform multiple transfers of color and toner images, such as in color copying.
Either the necessary number of toner developing devices are placed on the surface of the image carrier 1 and can be attached and detached, or a detachable or switching mechanism is provided to transfer toner of each color, for example, yellow, magenta, cyan, and black. form a color toner image.

13は感光体11のコロナ放電等を用いた除電器、14
は感光体11表面のクリーナである。クリーニングには
ファーブラシ法、吸引法等を用いている。もしトナーを
回収再使用する場合には、先述の現像器12と同様、像
担持体1の面に沿って必要数だけ連装して離接可能とす
るか、着脱若しくは切換機構を設け、現像器12の中の
カラー・トナーに対応させて取分ければよい。この場合
ファーブラシ法でカリ、再利用トナーに不純物の混入し
ないクリーニング装置を用いる必要がある。15は感光
体11表面への帯電器でコロナ放電器環一般に使用する
コロドロア%を藷を用いることができる。16はレジス
トピンであって感光体11表面の画像位置と、転写ドラ
ム3表面上の画像位置を整合させる機構を構成する部材
である。尚レジストビン16は転写仕様に従りて複数個
設けることができる。
13 is a static eliminator using corona discharge of the photoreceptor 11, 14
is a cleaner for the surface of the photoreceptor 11. Fur brush method, suction method, etc. are used for cleaning. If toner is to be collected and reused, the required number of toners should be installed in series along the surface of the image carrier 1 and detachable, as in the case of the developing device 12 described above, or a detachable or switching mechanism should be provided. The toners may be selected according to the color toners among the 12 toners. In this case, it is necessary to use a cleaning device that does not mix potash or other impurities into the recycled toner using the fur brush method. Reference numeral 15 denotes a charger for charging the surface of the photoreceptor 11, and a corona discharger generally used in a corona discharger ring can be used. Reference numeral 16 denotes a resist pin, which is a member constituting a mechanism for aligning the image position on the surface of the photoreceptor 11 and the image position on the surface of the transfer drum 3. Note that a plurality of resist bins 16 can be provided according to transfer specifications.

次に2は密着露光装置である。密着露光装置2において
21は密着露光部材でありて光透過性の円筒から成って
いる(以後透光円筒と称する)。材質はガラス、ネサガ
ラス或はアクリル樹脂、ポリスチレン樹脂、不飽和ポリ
エステル樹脂、ナイロン樹脂、ポリカーボネイト、ポリ
エチレンテレフタレート等の樹脂類を用いることかで色
、乳白色或は表面艶消加工を施してもよい。或は紫外線
力7ットのための紫外線吸収、剤の質材への添加、表面
塗布等の加工を行ったものでもよい。
Next, 2 is a contact exposure device. In the contact exposure apparatus 2, reference numeral 21 denotes a contact exposure member, which is a light-transmitting cylinder (hereinafter referred to as a light-transmitting cylinder). The material may be glass, Nesa glass, or a resin such as acrylic resin, polystyrene resin, unsaturated polyester resin, nylon resin, polycarbonate, or polyethylene terephthalate, and the color may be milky white or surface matte processed. Alternatively, it may be processed by absorbing ultraviolet rays, adding agents to the material, coating the surface, etc. to increase the UV power of 7 t.

透光円筒21は感光体11にスプリング等による付勢で
押接されて、連動回転するが、該連動回転は感光体11
に押圧して従動させてもよいし、別に同期機構を設けて
同期回転させてもよい。
The transparent cylinder 21 is pressed against the photoconductor 11 by a spring or the like and rotates in conjunction with the photoconductor 11.
Alternatively, a separate synchronizing mechanism may be provided to cause synchronous rotation.

感光体11と透光円筒21の間の連動回転に於て滑り吟
による連動不整を防止するため感光体11及び透光円筒
21のいづれか一方又は両方に摩擦係数の大きな材質の
帯部材或は相互に噛合う歯車を付設することができる。
In order to prevent interlocking irregularities due to slippage during the interlocking rotation between the photoreceptor 11 and the light-transmitting cylinder 21, one or both of the photoreceptor 11 and the light-transmitting cylinder 21 are provided with a band member made of a material with a large coefficient of friction or mutually. A gear that meshes with the can be attached.

四は透光円筒21の内側に設けられた光源であって、螢
光灯、ハロゲンランプ、ストロボ等が便利に使用でき柱
状光源とすることが好しい。ここでは長手方向に比較的
、光量分布の均一な螢光灯を用いた。
4 is a light source provided inside the light-transmitting cylinder 21, and a fluorescent lamp, a halogen lamp, a strobe, etc. can be conveniently used, and a columnar light source is preferably used. Here, a fluorescent lamp with relatively uniform light intensity distribution in the longitudinal direction was used.

23は前記光源nを蔽い透光円fl120内に固定して
設けられる遮光部材で、231は透光円筒21と感光体
11との押接線若しくは押接m(以後両場合を併せて押
接線Cと称す)に沿って遮光部材乙に設けられたスリッ
ト、232は遮光部材ると透光円筒21の間にスリット
231の縁に沿って設けられたフードである。フード2
32は透光円筒21の連動回転に支障なく且つ光の散逸
を防止しうる程度に透光円筒21の内面に触れているこ
とが:のぞましい。
Reference numeral 23 denotes a light-shielding member that covers the light source n and is fixedly provided within the transparent circle fl120, and 231 denotes a pressing tangent line or pressing tangent line m between the transparent cylinder 21 and the photoreceptor 11 (hereinafter, both cases will be collectively referred to as a pressing tangent line). The slit 232 provided in the light-shielding member B along the line C) is a hood provided along the edge of the slit 231 between the light-shielding member and the light-transmitting cylinder 21. food 2
32 preferably touches the inner surface of the light-transmitting cylinder 21 to an extent that does not interfere with the interlocking rotation of the light-transmitting cylinder 21 and prevents light dissipation.

遮光部材nは、透光円筒21内に納まり、固定に耐える
傾度をもち、光源nからの光を外部に散逸させない不透
光性に構成されていればよい。その内面の形状は、スリ
ット231を径で感光体11表面に効率よく集束光を与
えうる楕円面或は平行光を作る動物面とすることもでき
る。また内面を鍵面仕上げにしておいてもよい。
The light-shielding member n may be configured to fit within the light-transmitting cylinder 21, have an inclination to withstand fixation, and be non-transparent so as not to dissipate the light from the light source n to the outside. The shape of the inner surface of the slit 231 may be an ellipsoid that can efficiently provide focused light to the surface of the photoreceptor 11 with the diameter of the slit 231, or an animal surface that produces parallel light. Alternatively, the inner surface may be finished with a key surface.

更に図示しないが、光源nの周りに光ファイバーを密に
配設し該光ファイバーの他端を辿光部材乙のスリット2
31、フード232部に導き、感光体11と透光円筒2
1の間に介在する透光原稿Sの面に、前記光ファイバー
の他端に於る光軸が垂直になるように透光原稿Sを照射
してもよいし、また光ファイバーの長さをフード232
の高さ程度の長さに切揃え、前記同様、原稿面に光ファ
イバーの光軸を画直になるよう集束してスリット、フー
ド部に密に配設して光フアイバープレイの形態としても
よい。この場合、光ファイバーの断面(円)の中心から
外に向って光学的密度が異り、光ファイバーの光軸方向
に光学的焦点を結びうる光ファイバーを用いた光フアイ
バー7レイ例えばセルフォックファイバーアレイ(日本
板硝子社製)等を便利に使用することができる。
Furthermore, although not shown, an optical fiber is densely arranged around the light source n, and the other end of the optical fiber is traced through the slit 2 of the optical member B.
31, lead to the hood 232 part, photoreceptor 11 and transparent cylinder 2
The translucent original S may be irradiated onto the surface of the translucent original S interposed between the hoods 232 and 1 so that the optical axis at the other end of the optical fiber is perpendicular.
It is also possible to form an optical fiber play by cutting the optical fibers to a length of approximately the same height as described above, converging the optical axes of the optical fibers so that they are perpendicular to the document surface, and disposing them densely in the slits and hoods. In this case, an optical fiber 7-lay using an optical fiber whose optical density differs outward from the center of the cross section (circle) of the optical fiber and which can be optically focused in the direction of the optical axis of the optical fiber, for example Selfoc fiber array (Japanese) (manufactured by Sheet Glass Company) etc. can be conveniently used.

次にSF′i透光原稿(以後原版と称する)である。Next is the SF'i translucent original (hereinafter referred to as the original).

原版Sを感光体11に密着露光するために密着露光部に
給送する方法として、感光体11と透光円筒21の押接
線Cを含んで感光体11側に原版Sの一部或は全部を保
持させて給送する方法と、透光円筒21111に保持さ
せて給送する方法及びガイド板或はローラ、ベルト等を
用いて前記押接線Cλ給送する方法を採ることができる
。図示した実施例に於ては第3番目の、ガイド板やベル
トを用いて給送する方法を用いた。
As a method of feeding the original S to the contact exposure section for contact exposure to the photoreceptor 11, part or all of the original S is fed to the photoreceptor 11 side including the pressing tangent line C between the photoreceptor 11 and the transparent cylinder 21. It is possible to adopt a method in which the material is held and fed, a method in which the material is held in a transparent cylinder 21111 and fed, and a method in which the material is fed along the pressing tangent line Cλ using a guide plate, a roller, a belt, or the like. In the illustrated embodiment, the third method of feeding using a guide plate or belt is used.

第1図においてUはレジストマーク11ot有するガイ
ド板であって、レジストマークIloはガイド板24上
に一般に複数個印しである。211はガイド板冴上に置
かれた原版Sを透光円筒21と感光体11の押接#C,
ζ向って搬入する搬入ベルト、212は搬入ベルト21
1を張架しガイド板スに軽く付勢されて押圧された搬入
ローラであって、原版Sの載置、レジスト合せの時には
、撥上げてガイド板Uから搬入ベルト211をフリーに
することができる。また搬入ベルト211は透光円筒2
1に設けたベルト溝に嵌合して張架されており、搬入ベ
ル)211及び搬入ローラ212は透光円筒21の回転
に同期して同周速度で従動する。また透光円筒21は原
版Sを押接し感光体11への密着を行うと共に、押接線
Cから原版Sを搬出する搬出ローラの役割を果す。即ち
透光円筒21は原版Sを搬入し続いて搬出する搬送ロー
ラの役割を兼ねている。尚原版Sの搬入について別個に
搬入機構を設け、透光円筒21には搬出のみを担当させ
てもよい。
In FIG. 1, U is a guide plate having registration marks 11ot, and generally a plurality of registration marks Ilo are marked on the guide plate 24. 211, the original S placed on the guide plate is pressed against the transparent cylinder 21 and the photoreceptor 11 #C;
A carry-in belt 212 carries the load in the ζ direction, 212 is a carry-in belt 21
1 is stretched and lightly biased and pressed by the guide plate U, and when placing the original S and aligning the registration, it can be lifted up to free the carry-in belt 211 from the guide plate U. can. In addition, the carry-in belt 211 is a translucent cylinder 2
The carry-in bell 211 and carry-in roller 212 follow the rotation of the transparent cylinder 21 at the same circumferential speed in synchronization with the rotation of the light-transmitting cylinder 21. Further, the transparent cylinder 21 presses the original S into close contact with the photoreceptor 11, and also serves as a carry-out roller that carries out the original S from the pressing tangent line C. That is, the light-transmitting cylinder 21 also serves as a conveyance roller for carrying in the original S and then carrying it out. Furthermore, a separate carrying-in mechanism may be provided for carrying in the original plate S, and the light-transmitting cylinder 21 may be responsible only for carrying out the original plate S.

次に5は原版Sの剥離ガイド板、加は柔かい金属毛等の
導電性材を密生させた原版除電ローラである。
Next, reference numeral 5 denotes a peeling guide plate for the original plate S, and numeral 5 denotes an original plate static elimination roller densely covered with conductive material such as soft metal bristles.

また前述したスリット231に着脱或は切換可能に色補
正フィルター(図示せず)を設け、原版Sの色調、感光
体の感光波長強度分布酸Lトナーの色調に基いて複写物
の仕上り色調の制御を行うことができる。
In addition, a color correction filter (not shown) is provided in the slit 231 in a removable or switchable manner, and the finished color tone of the copy is controlled based on the color tone of the original S and the light-sensitive wavelength intensity distribution of the photoreceptor. It can be performed.

密着露光において感光体11の表面に良好な静電荷潜像
を形成する第一の要件は原版Sと感光体11の表面の密
着性が高いことである。また第二には、原版SKa持さ
れ九画儂は一定の形状の大きさを持つと同時に厚みを有
しているので原版の画像担持面への斜入光で画像の厚み
の上縁及び下縁の陰を感光体表面に生じ々いこと、また
画像担持面を透過した光即ち画像光が感光体表面の曲率
、傾斜直であることが最も好しく、実用的にはその垂直
性の高いことが必要となる。
The first requirement for forming a good electrostatic latent image on the surface of the photoreceptor 11 in contact exposure is that the adhesiveness between the original S and the surface of the photoreceptor 11 is high. Secondly, since the original plate SKa has a certain size and thickness, the upper and lower edges of the image thickness are affected by oblique light entering the image bearing surface of the original plate. It is most preferable that no edge shadows occur on the surface of the photoreceptor, and that the light transmitted through the image bearing surface, that is, the image light, be perpendicular to the curvature and inclination of the photoreceptor surface; This is necessary.

前記し良密着性及び垂直性において、画像相持面と感光
体表面が直接に接する所謂フェイス−ツウ6フエイス(
face to face )の密着の場合には比較的
問題は少ないが、それでも面同志が離れて露光される時
には光線の垂直性が当然必要となる。
As mentioned above, in terms of good adhesion and perpendicularity, the so-called face-to-six face (
Although there are relatively few problems in the case of close contact (face-to-face), verticality of the light beam is still necessary when the surfaces are exposed at a distance.

更に原版の画像相持面の反対側面即ち背面と感光体表面
とを接して雑光する所謂バック・ツウ・フェイス(ba
ck to face )の場、今にれ密着性・と垂直
〜中 性についての配慮は不可欠である。
Furthermore, the so-called back-to-face (ba
(ck to face), it is essential to consider adhesion and vertical to neutrality.

第2図は押接線C付近の拡大図であるが、感光体11の
表面が、スリット231のスリット幅d内の押接aCの
近傍で、原版の画像担持面からtだけ離れて散光露光を
受ける場合、画質上許容できるtの値(密着性)は、t
≦父μmでめった。従って感光体11の半径Rとの関係
によってスリット幅dを決める必要がある。
FIG. 2 is an enlarged view of the vicinity of the pressing tangent line C, in which the surface of the photoreceptor 11 is exposed to diffused light at a distance t from the image bearing surface of the original in the vicinity of the pressing contact aC within the slit width d of the slit 231. When receiving, the value of t (adhesion) that is acceptable in terms of image quality is t
≦Father μm. Therefore, it is necessary to determine the slit width d depending on the relationship with the radius R of the photoreceptor 11.

一方フード232の足の高さhとスリット幅dで規定し
た垂直性tanψ−d/hは、散光露光の場合画質上許
容できる範囲として、tanψ≦0.2 でめった、従
ってh≧d10.2であり、足の高さhのフードを有す
るスリットの押接TlICに沿った長手方向には間隔d
毎に散光の斜入を制限し、平行光を照射する遮光片(図
示せず)を配列することになる。即ちフード232はd
XdXhの角筒の連続に配列された形となる。
On the other hand, the verticality tanψ-d/h defined by the height h of the foot of the hood 232 and the slit width d is an acceptable range for image quality in the case of diffuse light exposure, and rarely falls within tanψ≦0.2, so h≧d10.2. and the distance d in the longitudinal direction along the pressure contact TlIC of the slit with a hood of foot height h
In each case, light-shielding pieces (not shown) are arranged to restrict oblique entry of diffused light and irradiate parallel light. That is, the hood 232 is d
The shape is a series of rectangular cylinders of XdXh.

露光に用いる光が散光でなく、前記し丸集束光或は平行
光の時には、d、hに関する前述し九数値的制約は緩く
な、るがスリットの長手方向に設ける前記遮光片は依然
として必要である。
When the light used for exposure is not diffused light but circularly focused light or parallel light, the above-mentioned numerical constraints on d and h are relaxed, but the light shielding piece provided in the longitudinal direction of the slit is still necessary. be.

前述した光ファイバーを用いる方法は前記第2の要件で
ある露光光の垂直性を満足し、良好な靜電荷潜1象を形
成するのに甚だ有用であり、フェイス・ツウ響フェイス
或はバック・ツウ・フェイスいづれの場合にも普遍的に
使用可能である。
The method using an optical fiber as described above satisfies the second requirement of verticality of the exposure light, and is extremely useful for forming a good silent charge latent image, and can be used for face-to-face or back-to-back・Can be used universally on either face.

密着側光装置においては以上の配慮の下に作成されたフ
ード232を有するスリット231を付設した遮光部材
羽け、透光円筒21に中空回転軸を設けるととにより、
自由に透光円筒21の外部の固定基板(図示せず)に固
定して設けることができる。
In the close-contact side light device, a light-shielding member wing with a slit 231 having a hood 232 created with the above consideration in mind, and a hollow rotating shaft provided in the light-transmitting cylinder 21,
It can be freely fixed to a fixed substrate (not shown) outside the light-transmitting cylinder 21.

さて、本発明による密着静電複写装置の動作を説明する
と、第1図において3は転写機構部で、(資)は転写ド
ラム、3Dは筒面の切次ぎ、31は転写紙、32Fi転
写紙31の先端位置を規制し挾持するグリツバ−、オは
最終回の色トナー像が転写紙31に転写された時(即ち
全現像が終了した時)転覆ドラム(資)から転写紙31
を分離するだめの適宜転写ドラムに当接する分離爪であ
る。尚、分離爪あの先端の転写ドラム加筒面との当接、
退避は複写機に設けた制御装置によって行われる。34
i1:転写ドラム加の端縁部に転写紙31の端縁を押付
ける巾の細い、押工ベルトであって、転写ドラム3の両
端縁に対をなして設けており、転写ドラム3の回動に自
在に従動することができる。
Now, to explain the operation of the contact electrostatic copying apparatus according to the present invention, in FIG. 1, 3 is a transfer mechanism section, (capital) is a transfer drum, 3D is a cylindrical cutting section, 31 is transfer paper, 32Fi transfer paper A grip bar that regulates and clamps the tip position of the transfer paper 31, O is a gripper that controls the position of the tip of the transfer paper 31 when the final color toner image is transferred to the transfer paper 31 (i.e., when all development is completed).
This is a separation claw that comes into contact with the transfer drum as appropriate for separating the transfer drum. Furthermore, the contact of the tip of the separation claw with the transfer drum cylinder surface,
Evacuation is performed by a control device provided in the copying machine. 34
i1: A narrow pressing belt that presses the edge of the transfer paper 31 against the edge of the transfer drum. You can follow the movements freely.

転写ドラム(資)は、中心にアルミニウム等の導電性ド
ラム胴301とその外部に0,5〜10.4度の厚みの
材料、例えばシリコンゴム、ブタジェンゴム、ニトリル
ゴムアルいはエチレン−プロピレンゴム、ニトリルゴム
あるいはエチレン−プロピレンゴム、等を焼付けた弾性
絶縁体302およびその形成された円筒を半径方向に5
〜10 、、程度半径に直角な面で切取った切欠き3D
を設けることによって形成される。
The transfer drum (material) has a conductive drum body 301 made of aluminum or the like in the center and a material with a thickness of 0.5 to 10.4 degrees, such as silicone rubber, butadiene rubber, nitrile rubber, ethylene-propylene rubber, etc. An elastic insulator 302 made of baked nitrile rubber or ethylene-propylene rubber, etc., and a cylinder formed thereon are
~10,, Notch 3D cut out in a plane perpendicular to the degree radius
It is formed by providing

ドラム胴301には、色トナー像を転写紙31に転写す
るためにトナーとは逆極性の電圧2〜10キロボルト印
加する。弾性絶縁体302は印加電圧によりその表面に
転写電場を誘起することと、像担持体と転写ドラム(至
)の圧接を無衝撃に密接に行う目的を果す。もし円筒の
切取りがドラム胴301にまで及ぶ時には前記した弾性
絶縁体の薄いシートを焼付けてドラム胴301の裸出部
をカバーしておくことが好ましい。
A voltage of 2 to 10 kilovolts having a polarity opposite to that of the toner is applied to the drum cylinder 301 in order to transfer the color toner image onto the transfer paper 31 . The elastic insulator 302 serves the purpose of inducing a transfer electric field on its surface by an applied voltage and bringing the image carrier and the transfer drum into close pressure contact without impact. If the cutout of the cylinder extends to the drum body 301, it is preferable to cover the exposed portion of the drum body 301 by baking a thin sheet of the above-mentioned elastic insulator.

転写ドラム(資)に切欠き3Dを設けることにより転写
ドラムIが躯動力から開放された時、重力によって自由
に回動し切欠き3Dを上に向けて静止するので感光体1
1の円周との間に切取った分だけの間隙を生ずるので、
像担持体の回転に際し、像担持体と転写ドラムとの間に
退避機構を設ける必要がなく、退避復元動作による色ず
れを回避することができる。また複写機のコンパクト化
、コスト低下に有効である。
By providing the notch 3D in the transfer drum (material), when the transfer drum I is released from the body force, it rotates freely due to gravity and stands still with the notch 3D facing upward, so that the photoreceptor 1
Since a gap corresponding to the amount of the cut is created between the circumference of 1 and the circumference of 1,
When the image carrier rotates, there is no need to provide a retracting mechanism between the image carrier and the transfer drum, and color shift due to the retracting and restoring operation can be avoided. It is also effective in making the copying machine more compact and reducing costs.

転写ドラム加の前述した構成については特願昭56−8
0439号記載の技術等を流用することができる。また
転写ドラムIの筒面に設置するグリッパ翌は、特願昭5
5−148159号記載のグリッパの技術等を利用する
こともできる。
Regarding the above-mentioned configuration of the transfer drum, see Japanese Patent Application No. 1986-8.
The technology described in No. 0439 can be used. In addition, the gripper installed on the cylindrical surface of the transfer drum I is
It is also possible to use the gripper technology described in No. 5-148159.

また転写ドラムIの筒面にグリッパ32によって先端位
置を規制されて挾持された転写紙31がn回の色トナー
像転写を受ける間に転写ドラム(資)筒面から剥離しな
いように、押えベルトあのような維持機構を設けておく
ととが望ましい。また押えベルト34は、転与ドラム(
資)の無用の回動に対するプ、  レーキおよびロック
機構として機能すること奄できる。
In addition, a presser belt is used to prevent the transfer paper 31, which is held on the cylindrical surface of the transfer drum I with its tip position regulated by the gripper 32, from peeling off from the cylindrical surface of the transfer drum while undergoing n-times color toner image transfer. It is desirable to provide such a maintenance mechanism. Further, the presser belt 34 is connected to the transfer drum (
It can function as a pull, rake and locking mechanism to prevent unnecessary rotation of the shaft.

次にあけ前記したレジストピン16に当接し、転写ドラ
ム(9)に回転を開始させ、転写ドラム(資)の筒面が
感光体11の面に接するまで誘導するタイミングバーで
ある。多重転写に於て1iii*のずれを防止するため
、転写ドラム(資)は感光体11の円周速度に等しい円
周速度で、回転を開始し、更に切欠き3D部分に想定さ
れる転写ドラム(資)の円弧部分を終って実際に感光体
11の円筒面に接触する際にも同じく等しい円周速度で
接触する必要がある。従っテレシストピン16が当接し
摺動するタイミングバーあの面は、幾何学的計算か実験
によって、転写ドラム(資)に常に等しい一定の円周速
度を与える曲線を与えておくことが好しい。但し実用的
に許容される範囲で直線を用いることは差支えない。
Next, it is a timing bar that comes into contact with the previously opened resist pin 16, causes the transfer drum (9) to start rotating, and guides the transfer drum (material) until its cylindrical surface contacts the surface of the photoreceptor 11. In order to prevent 1iii* deviation in multiple transfer, the transfer drum (material) starts rotating at a circumferential speed equal to the circumferential speed of the photoreceptor 11, and furthermore, the transfer drum (material) that is assumed to be in the notch 3D portion When actually coming into contact with the cylindrical surface of the photoreceptor 11 after completing the circular arc portion, it is necessary to make contact at the same circumferential speed. Therefore, it is preferable that the surface of the timing bar on which the telesist pin 16 abuts and slides is provided with a curve, either by geometrical calculation or experiment, that always gives the transfer drum an equal and constant circumferential speed. However, it is acceptable to use straight lines within a practically permissible range.

タイミングバーあは前記機能の外にレジストピン16、
ガイド板潤のレジストマーク9oと共に多重転写m像の
レジスト合せ(整合)K重要な役割を有する。
In addition to the above function, the timing bar has resist pin 16,
Together with the registration mark 9o of the guide plate Jun, it plays an important role in register alignment (alignment) of multiple transfer images.

例えば複数枚の多色分解原版を用いカラー複写物を作成
するに当って、まづレジストピン16を91点に置き、
原版SのレジストマークIをガイド板属のレジストマー
クgoに合せ、複写工程を開始すると、感光体11と透
光円筒21の回転につれて原版Sは押接mcの密着雑光
部で露光され感光体11上に順次静電潜像が形成され、
一方原版Sは剥離ガイド板上へ離脱し、静電潜像は現像
器12によって該原版Sの表現すべき色調のカラー・ト
ナーによって現僧され、レジストビン16は91点から
92点に到りタイミングバーあに当接する。この間原版
Sのレジストマーク9の位置は、レジストピン16が9
1点にある時はglに対応し、92点に到った時点では
g2に対応する。レジストビン16がタイミングバーあ
を押して、転写ドラム刃と感光体11接するに到るとI
I2は転写ドラム(9)上の93に対応する。
For example, when creating a color copy using a plurality of multicolor separation master plates, first place the resist pin 16 at 91 points,
When the registration mark I on the original S is aligned with the registration mark go on the guide plate and the copying process is started, as the photoreceptor 11 and the light-transmitting cylinder 21 rotate, the original S is exposed to light in the contact miscellaneous light portion of the press MC, and the photoreceptor Electrostatic latent images are sequentially formed on 11,
On the other hand, the original plate S is released onto the peeling guide plate, and the electrostatic latent image is developed by the developer 12 with color toner of the tone to be expressed on the original plate S, and the resist bin 16 reaches 92 points from 91 points. It touches the timing bar. During this time, the position of the registration mark 9 on the original plate S is such that the registration pin 16 is at 9
When it is at 1 point, it corresponds to gl, and when it reaches 92 points, it corresponds to g2. When the registration bin 16 pushes the timing bar and comes into contact with the transfer drum blade and the photoreceptor 11, the I
I2 corresponds to 93 on the transfer drum (9).

以上述べたlloに合せられたgは、plに関するIl
l。
g adjusted to llo described above is Il related to pl
l.

p2に関する92及びp2に関するg3の関係位置を辿
り、繰返し操作の間不変である。従ってgoに合された
flVi常に93に整合し、非常に簡易に且つ確実に多
色分解原版間の整合がえられる。
The relative position of 92 with respect to p2 and g3 with respect to p2 is followed and remains unchanged during repeated operations. Therefore, flVi matched to go always matches 93, and matching between multicolor separation originals can be obtained very easily and reliably.

本発明に於ては、像担持体ドラムの半径にと転写ドラム
の半径R′の間に2πR−n(2πR′+α)の関係を
与え、レジストビン16をn本、感光体(ドラム) 1
1の円周に沿って植設して、多重転写の効率を上げると
とができる。尚nは1.2.3・・・・・・等の整数、
αはplgo、切欠き円弧長、或は帯電、現俸等の操作
に必要な円周上の操作長等によって定まる。
In the present invention, a relationship of 2πR-n (2πR'+α) is given between the radius of the image bearing drum and the radius R' of the transfer drum, and n resist bins 16 and 1 photoreceptor (drum) are provided.
It is possible to increase the efficiency of multiple transfer by implanting it along the circumference of the cell. Note that n is an integer such as 1.2.3...
α is determined by plgo, the notch arc length, or the operating length on the circumference necessary for operations such as charging and current flow.

以上詳述した本発明によりて、コンパクトで作業性のよ
い、しかも画偉毀損の恐れなく確実、迅速に行いうる透
光原稿の密着静電複写装置を提供することができた。
According to the present invention described in detail above, it has been possible to provide a contact electrostatic copying apparatus for translucent originals that is compact, has good workability, and can perform reliable and quick copying without fear of damage to the image quality.

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

第1図は本発明の一実施例概略構成図の一部破断側面図
、第2図は密着露光部分の説明図である。 1・・・像形成部、11・・・感光体、16・・・レジ
ストピン2・・・密着露光装置、21・・・透光円筒間
・・・転写ドラム、あ・・・タイミングバー3D・・・
切欠き、S・・・原版、Ila・・・レジストマークC
・・・押接線 代理人 桑原義美 、・j 第11ン1
FIG. 1 is a partially cutaway side view of a schematic configuration diagram of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of a close exposure portion. DESCRIPTION OF SYMBOLS 1... Image forming part, 11... Photoreceptor, 16... Resist pin 2... Contact exposure device, 21... Between transparent cylinders... Transfer drum, Ah... Timing bar 3D ...
Notch, S...original plate, Ila...registration mark C
...Tangential agent Yoshimi Kuwahara,・j 11th 1st

Claims (3)

【特許請求の範囲】[Claims] (1)光導電性感光体を用いた像担持体表面に透光原稿
を密着させ露光する密着露光装置と、該像担持体表面に
形成された静電潜像を現像し、可視化した後、該儂担持
体上の画像を転写する転写ドラムとを有する透光原稿の
密着静電複写装置。
(1) A contact exposure device that brings a translucent original into close contact with the surface of an image carrier using a photoconductive photoreceptor and exposes it to light, and after developing and visualizing the electrostatic latent image formed on the surface of the image carrier, A contact electrostatic copying apparatus for translucent originals, comprising a transfer drum for transferring an image on the carrier.
(2)前記密着露光装置の密着無光部材が前記透光原稿
の搬送ローラを兼ねた特許請求の範囲第一項記載の透光
原稿の密着静電複写装置。
(2) The contact electrostatic copying apparatus for translucent originals according to claim 1, wherein the contact non-light member of the contact exposure device also serves as a transport roller for the translucent original.
(3)前記転写ドラムに切欠きを設け、像担持体表面の
画像の位置と該転写ドラム表面の画像転写位置とが整合
する機構とした特許請求の範囲第−項又は、第二項記載
の透光原稿の密着静電複写装置。
(3) A mechanism according to claim 1 or 2, wherein the transfer drum is provided with a notch so that the position of the image on the surface of the image carrier and the position of the image transfer on the surface of the transfer drum are aligned. Contact electrostatic copying device for translucent originals.
JP2566182A 1982-02-18 1982-02-18 Electrostatic copying apparatus used for contact exposure of light transmitting original Pending JPS58142350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2566182A JPS58142350A (en) 1982-02-18 1982-02-18 Electrostatic copying apparatus used for contact exposure of light transmitting original

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2566182A JPS58142350A (en) 1982-02-18 1982-02-18 Electrostatic copying apparatus used for contact exposure of light transmitting original

Publications (1)

Publication Number Publication Date
JPS58142350A true JPS58142350A (en) 1983-08-24

Family

ID=12171983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2566182A Pending JPS58142350A (en) 1982-02-18 1982-02-18 Electrostatic copying apparatus used for contact exposure of light transmitting original

Country Status (1)

Country Link
JP (1) JPS58142350A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402079A2 (en) * 1989-06-06 1990-12-12 Victor Company Of Japan, Ltd. Printing method for proof and planograph using electrophotographic recording medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0402079A2 (en) * 1989-06-06 1990-12-12 Victor Company Of Japan, Ltd. Printing method for proof and planograph using electrophotographic recording medium
US5120624A (en) * 1989-06-06 1992-06-09 Victor Company Of Japan, Ltd. Output device for proof and planograph using electrophotographic recording medium and printing medium thereby

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