JPS6383775A - Copying machine - Google Patents

Copying machine

Info

Publication number
JPS6383775A
JPS6383775A JP23033386A JP23033386A JPS6383775A JP S6383775 A JPS6383775 A JP S6383775A JP 23033386 A JP23033386 A JP 23033386A JP 23033386 A JP23033386 A JP 23033386A JP S6383775 A JPS6383775 A JP S6383775A
Authority
JP
Japan
Prior art keywords
paper
belt
photoreceptor
electrifier
charger
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
JP23033386A
Other languages
Japanese (ja)
Inventor
Hiroshi Yasuba
安場 博
Haruyuki Uenishi
植西 治之
Hideyuki Kubo
久保 英幸
Masakazu Naito
内藤 雅和
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP23033386A priority Critical patent/JPS6383775A/en
Publication of JPS6383775A publication Critical patent/JPS6383775A/en
Pending legal-status Critical Current

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  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)

Abstract

PURPOSE:To obtain a stable image by giving the charge of the same polarity as a belt to a paper with a corona discharging, controlling a corona current to flow at the separating area of the belt with an electrifying means and adjusting the aperture part of the electrifying means. CONSTITUTION:For an electrifier 11, the high voltage of the same polarity as a transferring electrifier 6 is impressed to a wire 12, the aperture part of a corona current is formed on a surface 13 in the lower direction and a corona ion to occur at the electrifier 11 flows through the aperture part of the surface 13 to a paper 13. On the surface overlapped with the surface 13 of a case cover 21, an aperture part 24 is provided, the fixing part of an electrifying case 19 of the case cover 21 comes to be an oblong hole 25, the case cover 21 is moved in the direction 26 of an arrow and the aperture of aperture parts 23 and 24 can be adjusted. The corona current to a paper from the electrifier 11 flows through the aperture part. In the condition of temperature and humidity, the aperture part of the electrifier 11 is adjusted and the clearly finished copy can be obtained.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、たとえば静電転写式複写機などの複写機に関
するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to copying machines, such as electrostatic transfer copying machines.

従来の技術 複写機は、感光体を中心として、帯電、像露光、現像、
転写、クリーニング、搬送、定着の各部より、基本的に
成シ立っている。その動作を説明すると、1感光体帯電
器に高電圧を印加して、感光体上に静電荷を付与する。
Conventional technology copying machines center around the photoreceptor and perform charging, image exposure, development,
Basically, it consists of transfer, cleaning, conveyance, and fixing parts. To explain its operation, a high voltage is applied to one photoreceptor charger to apply an electrostatic charge to the photoreceptor.

2原稿面上におかれた原稿を露光ランプで照射し、レン
ズを通して感光体上に結像し静電潜像を作る。3現像器
でトナーによって静電潜像を可視化する。トナーとは、
熱により軟かぐ力る樹脂を主体とした着色粉末である。
2. The original placed on the original surface is irradiated with an exposure lamp, and an image is formed on the photoreceptor through a lens to form an electrostatic latent image. 3. The electrostatic latent image is visualized using toner using a developing device. What is toner?
It is a colored powder mainly made of resin that softens when heated.

4感光体上のトナー像が紙に転写される。4 The toner image on the photoreceptor is transferred to paper.

このとき、紙は感光体に静電的に吸引されている。At this time, the paper is electrostatically attracted to the photoreceptor.

5分離帯電器により、紙と感光体の静電引力は中和され
、紙は感光体より離れる。6感光体は残トナーをクリー
ニングされ、次のサイクルに使われる。7感光体より離
れた紙は、搬送ベルトにより定着器まで運ばれる。8ト
ナーが、熱により紙に固着される。9紙が複写機から排
出されコピーが出来上る。
5 The electrostatic attraction between the paper and the photoreceptor is neutralized by the separation charger, and the paper is separated from the photoreceptor. 6 The photoreceptor is cleaned of residual toner and used for the next cycle. 7 The paper separated from the photoreceptor is transported to a fixing device by a transport belt. 8 toner is fixed to the paper by heat. 9 sheets are ejected from the copying machine and a copy is completed.

第6図に従来例の要部断面図を示す。FIG. 6 shows a sectional view of the main parts of the conventional example.

27は転写帯電器であり、感光体帯電器と同極性の高圧
を印加することにより感光体上のトナー像を紙上に移す
る。このとき感光体と紙は静電力により付着している。
A transfer charger 27 transfers the toner image on the photoreceptor onto paper by applying a high voltage having the same polarity as the photoreceptor charger. At this time, the photoreceptor and paper are attached to each other by electrostatic force.

28は分離能帯電器であり、交流の高圧を印加して、紙
と感光体の静電引力を中和する。紙は重力により下方へ
落下して、感光体より離れる。この場合、厚紙や剛度の
高い紙では、容易に感光体よυ離れ紙分離は確実なもの
となるが、薄紙や剛度の低い紙や、紙の繊維方向に対し
て直角に紙送行を行う場合など、紙は感光体から離れず
紙ジヤムなどの紙トラブルとなる。また、感光体の端に
紙分離専用の分離ベルトなどの強制的分離手段を設けて
分離を確実にする方法もあるが、この場合、強制的分離
手段に係る所は、コピーが写らなくなシ、線状の余白部
が出来るなどの欠点を有している。
A separation charger 28 applies high alternating voltage to neutralize the electrostatic attraction between the paper and the photoreceptor. The paper falls downward due to gravity and separates from the photoreceptor. In this case, with thick paper or paper with high stiffness, paper separation from the photoreceptor is easily ensured, but when paper is thin or paper with low stiffness, or when the paper is fed perpendicular to the fiber direction of the paper, etc., the paper does not separate from the photoreceptor, causing paper problems such as paper jams. There is also a method to ensure separation by installing a forced separation means such as a separation belt dedicated to paper separation at the end of the photoreceptor, but in this case, the part related to the forced separation means will not be able to print copies and will , it has drawbacks such as the formation of linear margins.

29は、コピー用紙すなわち紙である。30は、搬送ベ
ルトであシ、感光体より分離された紙は、搬送ベルトに
より、定着器に運ばれる。搬送ベルトは、ダクトにより
吸引されていることが多いが、紙は搬送ベルト上に軟く
乗っておシ、搬送ベルト端部で容易に定着器へ移行する
29 is copy paper, that is, paper. 30 is a conveyor belt, and the paper separated from the photoreceptor is conveyed to a fixing device by the conveyor belt. Although the conveyor belt is often suctioned by a duct, the paper rides on the conveyor belt softly and is easily transferred to the fixing device at the end of the conveyor belt.

発明が解決しようとする問題点 しかしながら上記の構成では、コピー欠けのない全面コ
ピーを維持しようとすると、薄紙や低剛度用紙では、感
光体よりの紙分離に伴うトラブルが残り、感光体よりの
紙分離に伴うトラブルを減少させようとすると、コピー
欠けが生じるという問題点を有していた。
Problems to be Solved by the Invention However, with the above configuration, when trying to maintain full-page copying without copy defects, troubles associated with paper separation from the photoconductor remain when using thin paper or low-rigidity paper, and paper separation from the photoconductor remains. Attempts to reduce troubles associated with separation have resulted in the problem of missing copies.

本発明は上記問題点に鑑み、コピー欠けのない全面コピ
ーを維持しながら、薄紙や低剛度用紙でしかも高湿から
低湿までの範囲にわたって、紙分離に伴うトラブルを解
決した複写機を提供するものである。
In view of the above-mentioned problems, the present invention provides a copying machine that solves the troubles associated with paper separation when using thin paper or low-rigidity paper, and in a range from high humidity to low humidity, while maintaining full-page copying without copy defects. It is.

問題点を解決するための手段 上記問題点を解決するために、本発明の複写機は、感光
体とベルトと帯電手段を具備し、前記ベルトは、転写領
域から分離領域に及んでおシ、転写領域では、感光体表
面と同極性に帯電され、且つ、紙を介して実質的に前記
感光体と接触しており、搬送領域では感光体表面と同極
性に帯電された静電力によって、紙を前記ベルト表面に
付着せしめて、次のプロセスへと搬送し、前記帯電手段
は、前記ベルトと紙の分離領域に設けられていて、コロ
ナ放電によって、前記ベルトと同極性の電荷を紙に付与
すると共に、前記帯電手段より、前記ベルトの分離領域
に流れるコロナ電流を制御出来るように、前記帯電手段
の開口部を調整可能としたことにより、高湿から低湿に
わたり、薄紙や低剛度用紙の紙トラブルと画像の乱れを
解消するという構成を備えたものである。
Means for Solving the Problems In order to solve the above problems, the copying machine of the present invention includes a photoreceptor, a belt, and a charging means, and the belt extends from the transfer area to the separation area. In the transfer area, it is charged to the same polarity as the surface of the photoreceptor and is in substantial contact with the photoreceptor through the paper, and in the transfer area, the electrostatic force charged to the same polarity as the surface of the photoreceptor charges the paper. is attached to the surface of the belt and conveyed to the next process, and the charging means is provided in a separation area between the belt and the paper, and applies an electric charge of the same polarity as the belt to the paper by corona discharge. In addition, by making the opening of the charging means adjustable so that the corona current flowing from the charging means into the separation area of the belt can be adjusted, it is possible to control thin paper and low-rigidity paper from high humidity to low humidity. It has a structure that eliminates troubles and image disturbances.

作  用 本発明は、上記した構成により、感光体との分離に伴う
紙トラブルと画像の乱れが解決されるので、高湿から低
湿にわたり、安定した画像が得られる。
Effects According to the present invention, the above-described configuration solves paper troubles and image disturbances caused by separation from the photoreceptor, so that stable images can be obtained from high humidity to low humidity.

実施例 以下図面を参照しながら本発明の実施例について述べる
Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

第1図は、本発明の複写機の断面構成図を示す。FIG. 1 shows a cross-sectional configuration diagram of a copying machine according to the present invention.

第1図について説明する。1は感光体であり、矢印2方
向へ回転する。3は感光体帯電器であり、感光体1上へ
正の電荷を与える。感光体1はセレン感光体であるため
、正の電荷を与えるが、○PCであれば、負の電荷を与
えることになる。4は光像照射であり、感光体1上に静
電潜像を形成する。
FIG. 1 will be explained. Reference numeral 1 denotes a photoreceptor, which rotates in two directions indicated by arrows. Reference numeral 3 denotes a photoreceptor charger, which applies a positive charge onto the photoreceptor 1. Since the photoreceptor 1 is a selenium photoreceptor, it will be given a positive charge, but if it is ◯PC, it will be given a negative charge. 4 is a light image irradiation to form an electrostatic latent image on the photoreceptor 1;

5は現像器であり、感光体1上の静電潜像をトナーによ
り可視化する。6は転写帯電器であシ、感光体帯電器3
と同極性の高電圧が印加される。了はベルトであり、絶
縁材料より成り紙8を介して感光体と接触している。ベ
ルト7は、矢印9方向に移動する。1oはクリーニング
である。11は帯電器であり、ワイヤ12に、転写帯電
器6と同極性の高電圧が印加されている。そして下方の
面13にココロナ電流の開口部が形成されており、後述
するように、帯電器11で発生したコロナイオンは、面
13の開口部を通って紙8へ流れる。
A developing device 5 visualizes the electrostatic latent image on the photoreceptor 1 using toner. 6 is a transfer charger, photoreceptor charger 3
A high voltage of the same polarity is applied. The belt is made of an insulating material and is in contact with the photoreceptor through a paper 8. Belt 7 moves in the direction of arrow 9. 1o is cleaning. 11 is a charger, and a high voltage of the same polarity as the transfer charger 6 is applied to a wire 12. A co-corona current opening is formed in the lower surface 13, and as will be described later, corona ions generated in the charger 11 flow to the paper 8 through the opening in the surface 13.

14は定着器である。15はベルト7のクリ一二ングブ
レードである。16は転写領域であり、第2図に示すよ
うに転写帯電器6は、ベルト7の下方に設置され、感光
体12紙8.ベルト了、転写帯電器6の構成順になって
いる。転写帯電器6に正の高電圧を印加すると、ベルト
7が正に帯電し、紙側のベルト表面で数双の電位になる
。従って、転写領域16での電場の方向は、ベルト7か
ら感光体1へ向うことになシ、感光体1上のトナーは紙
8へ転写される。ベルト了は、絶縁性の弾性体から出来
ており、ベルトT上の電荷は、保持されたまま、搬送領
域1了へ移っていく。ベルト7と紙8の間の静電引力は
、感光体1と紙8の間の静電引力に比べて太きいため、
紙は、ベルト7の上にのった状態で搬送領域17へ入っ
てくる。本実施例では秤量37gの用紙や、ガーレ剛度
10の用紙2両面コピーで上側に大きくカールした用紙
でも、感光体1との分離不良は発生しなかった。
14 is a fixing device. 15 is a cleaning blade of the belt 7. Reference numeral 16 denotes a transfer area, and as shown in FIG. The belt is finished and the transfer charger 6 is configured in this order. When a high positive voltage is applied to the transfer charger 6, the belt 7 is positively charged, and the belt surface on the paper side has several potentials. Therefore, the direction of the electric field in the transfer area 16 is from the belt 7 to the photoreceptor 1, and the toner on the photoreceptor 1 is transferred to the paper 8. The belt T is made of an insulating elastic material, and the electric charge on the belt T is transferred to the conveying area 1 while being held. The electrostatic attraction between the belt 7 and the paper 8 is greater than the electrostatic attraction between the photoreceptor 1 and the paper 8, so
The paper enters the transport area 17 on the belt 7. In this example, no failure in separation from the photoreceptor 1 occurred even when the paper weighed 37 g or the paper had a Gurley stiffness of 10 and was curled significantly upward during two-sided copying.

18は分離領域であり、第3図に示すように静電的に帯
電したベルトによって運ばれた紙は、ベルト7と紙8の
分離領域袷に達し、定着器14へと運ばれる。分離領域
18では、帯電器11により、紙8にベルト了の表面の
電荷と同極性の電荷が与えられ、ベルト7と紙8の相対
的な電位差が減少し、紙8とベルトの分離を容易に行う
ことが出来るようになる。
Reference numeral 18 denotes a separation area, and as shown in FIG. In the separation region 18, the charger 11 gives the paper 8 an electric charge of the same polarity as the electric charge on the surface of the belt, reducing the relative potential difference between the belt 7 and the paper 8, making it easier to separate the paper 8 and the belt. You will be able to do this.

低湿で複写機を動作させた時には、転写領域16でベル
ト7上に与えられた電位が減少することなく、分離領域
18にまで達する。従って、この状態で、無理に紙8を
ベルト7から引き離すと、紙8とベルト7間で放電が起
シ、紙8の上のトナー像が乱れる結果となる。一方、高
湿ではベルト7の表面に水分の吸着が生じるため、転写
領域16でベルト7上に与えられた電位は、分離領域1
8では、かなり減衰している。その結果、紙8はベルト
7から離れやすい状態になっている。
When the copying machine is operated at low humidity, the potential applied to the belt 7 in the transfer area 16 reaches the separation area 18 without decreasing. Therefore, if the paper 8 is forcibly separated from the belt 7 in this state, electric discharge will occur between the paper 8 and the belt 7, resulting in the toner image on the paper 8 being disturbed. On the other hand, in high humidity, moisture is adsorbed on the surface of the belt 7, so the potential applied to the belt 7 in the transfer area 16 is lower than that in the separation area 1.
8, it is considerably attenuated. As a result, the paper 8 is easily separated from the belt 7.

従って、低湿では、紙8とベルト7間の放電を起させに
くくするために、帯電器11より多くのコロナ電流を流
す必要があるが、一方、高湿では、多くのコロナ電流を
流すことにより、トナーと紙8の静電引力が弱くなって
、画像上に乱れを生じる。このことを補正するための帯
電器11を第4図に示す。
Therefore, in low humidity, it is necessary to flow more corona current than the charger 11 in order to make it difficult to cause discharge between the paper 8 and belt 7, but on the other hand, in high humidity, it is necessary to flow more corona current than in the charger 11. , the electrostatic attraction between the toner and the paper 8 becomes weaker, causing disturbances on the image. A charger 11 for correcting this is shown in FIG.

帯電器11は、帯電ケース19と絶縁ベース20と帯電
ケース内に絶縁ベース20間で架張されたワイヤとケー
スカバー21と、帯電ケース19とケースカバー21と
を固定するビス等の固定手段22かも成っている。
The charger 11 includes a charging case 19, an insulating base 20, a wire stretched between the insulating bases 20 in the charging case, a case cover 21, and fixing means 22 such as screws for fixing the charging case 19 and the case cover 21. Maybe it's made up.

帯電ケース19の面13には、斜口に開けた開口部23
が設けられており、ケースカバー21の面13と重なる
面には、開口部24が設けられている。ケースカバー2
1の帯電ケース19との固定部は長穴25になっており
、ケースカバー21が矢印2e方向に動いて、開口部2
3.24の開口率を調整出来るようになっている。
The surface 13 of the charging case 19 has a diagonally opened opening 23.
An opening 24 is provided on the surface of the case cover 21 that overlaps with the surface 13. case cover 2
The fixing part to the charging case 19 of 1 is an elongated hole 25, and the case cover 21 moves in the direction of the arrow 2e to close the opening 2.
The aperture ratio of 3.24 can be adjusted.

帯電器11からの紙へのコロナ電流は、開口部を通して
流れる。
Corona current from the charger 11 to the paper flows through the opening.

第5図は、開口部の説明図であり、帯電器11の面13
を上から見た図である。イ図は、帯電ケース19の開口
部23とケースカバー21の開口部24が一致した図で
あり、帯電線12が見えている。このとき、帯電器11
から分離領域18の紙上に流れるコロナ電流が最大とな
る。従って、低温時には、開口部が最大となるイ図のよ
うに調節する。
FIG. 5 is an explanatory diagram of the opening, and shows the surface 13 of the charger 11.
This is a diagram seen from above. Figure A is a diagram in which the opening 23 of the charging case 19 and the opening 24 of the case cover 21 coincide, and the charging wire 12 is visible. At this time, the charger 11
The corona current flowing on the paper in the separation region 18 becomes maximum. Therefore, when the temperature is low, the opening should be adjusted to the maximum as shown in Figure A.

ロスは、帯電ケース19の開口部23とケース態に調節
する。
The loss is adjusted according to the opening 23 of the charging case 19 and the case.

ハスは、帯電ケース19の開口部23とケースカバー2
1の開口部24が完全にズした状態にあ以上の構成の複
写機において、25℃、56チRHの状態で帯電器11
の開口部を中程度にして、秤量3了qから90 gの用
紙を通紙した。紙ジヤムのトラブルもなく、きれいな仕
上りのコピーが出来た。
The lotus is the opening 23 of the charging case 19 and the case cover 2.
In the copying machine configured as above, the charger 11 is opened at 25° C. and 56° RH.
The opening was set to medium, and paper weighing 90 g from 3 kg was passed through. I was able to make beautiful copies without any problems with paper jams.

30℃、86%RHの状態で、帯電器1・1の開口部を
閉じて秤量37qから90 gの用紙を通紙した。紙ジ
ヤムのトラブルもなく、きれいな仕上りのコピーが出来
た。
At 30° C. and 86% RH, the opening of the charger 1.1 was closed, and paper weighing 37q to 90 g was passed through. I was able to make beautiful copies without any problems with paper jams.

7℃、20% RHの状態で、帯電器11の開口部を最
大にして、秤量3アqから90gの用紙を通紙した。紙
ジヤムのトラブルもなく、きれい外仕上シのコピーが出
来た。
At 7° C. and 20% RH, the opening of the charger 11 was maximized, and paper weighing from 3 aq to 90 g was passed through. I was able to make copies with a clean exterior finish without any problems with paper jams.

発明の効果 以上の説明のように、転写領域、搬送領域1分離領域に
及ぶベルトの採用と、分離領域では、帯電器からのコロ
ナ電流を調節可能にするために、開口部の調整が出来る
ケースカバーを設けることによって低湿度から高湿度の
範囲で、しかも、用紙の秤量の広い範囲で、紙ジヤム等
の紙トラブルと画像の乱れのない安定した画像の得られ
る複写機が提供出来その効果は非常に大である。
Effects of the Invention As explained above, a case is adopted in which a belt covering one separation area is used in the transfer area and the transport area, and in the separation area, the opening can be adjusted in order to adjust the corona current from the charger. By providing a cover, it is possible to provide a copying machine that can produce stable images without paper problems such as paper jams and image disturbances in the range of low humidity to high humidity and in a wide range of paper weights. It's very large.

【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を示す断面構成図、第2図は
転写領域の要部説明図、第3図は分離領域の要部説明図
、第4図は帯電手段の構成図、第5図は開口部の説明図
で第6図は従来例の説明図、である。 1・・・・・・感光体、3・・・・・・感光体帯電器、
6・・・・・・転写帯電器、7・・・・・・ベルト、8
・・・・・・紙、11・・・・・・帯電手段、12・・
・・・・帯電線、13・・・・・・開口面、16・・・
・・・転与領域、17・・・・・・搬送領域、18・・
・・・・分離領域、19・・・・・・帯電ケース、20
・・・・・・絶縁ベース、21・・・・・・ケースカバ
ー、22・・・・・・固定手段 23・・・・・・開口
部、24・・・・・・開口部、25・・・・・・長穴、
26・・・・・・移動方向。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名第 
 3  図                   7
−−−ヘルト8−  床入 ff′−・Y先テ尺 f3−  閉I]命 2G−枠Yカ方1狛 @ 5 図 12゛−キC謀
FIG. 1 is a cross-sectional configuration diagram showing an embodiment of the present invention, FIG. 2 is an explanatory diagram of the main parts of the transfer area, FIG. 3 is an explanatory diagram of the main parts of the separation area, and FIG. 4 is a configuration diagram of the charging means. FIG. 5 is an explanatory diagram of the opening, and FIG. 6 is an explanatory diagram of a conventional example. 1...Photoconductor, 3...Photoconductor charger,
6... Transfer charger, 7... Belt, 8
...Paper, 11...Charging means, 12...
...Charged wire, 13...Opening surface, 16...
...Transfer area, 17...Transportation area, 18...
...Separation area, 19...Charging case, 20
...Insulation base, 21 ... Case cover, 22 ... Fixing means 23 ... Opening, 24 ... Opening, 25. ...long hole,
26...Movement direction. Name of agent: Patent attorney Toshio Nakao and 1 other person
3 Figure 7
---Helt 8- Floor entry ff'-・Y tip length f3- Close I] Life 2G-Frame Y direction 1 peg @ 5 Figure 12゛-Ki C plot

Claims (1)

【特許請求の範囲】[Claims] 感光体とベルトと帯電手段を具備し、前記ベルトは転写
領域から分離領域に及び、前記転写領域では前記感光体
表面と同極性に帯電され、且つ、被複写体を介して実質
的に前記感光体と接触しており、前記搬送領域では前記
感光体表面と同極性に帯電された静電力によって、前記
被複写体を前記ベルト表面に付着せしめて次のプロセス
へと搬送し、前記帯電手段は、前記ベルトと前記被複写
体の分離領域に設けられており、コロナ放電によって前
記ベルトと同極性の電荷を紙に付与すると共に、前記帯
電手段より前記ベルトの分離領域に流れるコロナ電流を
制御出来るように前記帯電手段の開口部を調整可能とし
たことを特徴とする複写機。
The belt includes a photoreceptor, a belt, and a charging means, the belt extends from a transfer area to a separation area, is charged to the same polarity as the surface of the photoreceptor in the transfer area, and substantially charges the photoreceptor through the object. In the conveying region, the object to be copied is attached to the surface of the belt by an electrostatic force charged with the same polarity as the surface of the photoreceptor and conveyed to the next process, and the charging means , is provided in a separation area between the belt and the object to be copied, and is capable of imparting an electric charge of the same polarity as the belt to the paper by corona discharge, and controlling a corona current flowing to the separation area of the belt from the charging means. A copying machine characterized in that the opening of the charging means is adjustable.
JP23033386A 1986-09-29 1986-09-29 Copying machine Pending JPS6383775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23033386A JPS6383775A (en) 1986-09-29 1986-09-29 Copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23033386A JPS6383775A (en) 1986-09-29 1986-09-29 Copying machine

Publications (1)

Publication Number Publication Date
JPS6383775A true JPS6383775A (en) 1988-04-14

Family

ID=16906193

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23033386A Pending JPS6383775A (en) 1986-09-29 1986-09-29 Copying machine

Country Status (1)

Country Link
JP (1) JPS6383775A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009535768A (en) * 2007-02-02 2009-10-01 コニンフェールス ゲーエムベーハー Angle connector featuring variable extension direction
US9170547B2 (en) 2012-01-25 2015-10-27 Brother Kogyo Kabushiki Kaisha Image forming apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009535768A (en) * 2007-02-02 2009-10-01 コニンフェールス ゲーエムベーハー Angle connector featuring variable extension direction
JP4740370B2 (en) * 2007-02-02 2011-08-03 コニンフェールス ゲーエムベーハー Angle connector featuring variable extension direction
US9170547B2 (en) 2012-01-25 2015-10-27 Brother Kogyo Kabushiki Kaisha Image forming apparatus

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