JPS60134261A - Electrifying device - Google Patents

Electrifying device

Info

Publication number
JPS60134261A
JPS60134261A JP24224583A JP24224583A JPS60134261A JP S60134261 A JPS60134261 A JP S60134261A JP 24224583 A JP24224583 A JP 24224583A JP 24224583 A JP24224583 A JP 24224583A JP S60134261 A JPS60134261 A JP S60134261A
Authority
JP
Japan
Prior art keywords
paper
voltage
dielectric
layer
electrode
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
JP24224583A
Other languages
Japanese (ja)
Other versions
JPH0210425B2 (en
Inventor
Masaharu Shirai
正治 白井
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 Business Innovation Corp
Original Assignee
Fuji Xerox 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 Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP24224583A priority Critical patent/JPS60134261A/en
Publication of JPS60134261A publication Critical patent/JPS60134261A/en
Publication of JPH0210425B2 publication Critical patent/JPH0210425B2/ja
Granted 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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0291—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices corona discharge devices, e.g. wires, pointed electrodes, means for cleaning the corona discharge device

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To electrify the surface of a dielectric material having an electric charge holdability and the surface of an ordinary photosensitive body by electrifying simultaneously the surfaces of the two dielectric materials or both surfaces of one dielectric material. CONSTITUTION:Paper 1 is sandwiched between the surface of the dielectric material layer of an electrode plate 2 having a dielectric material layer 2-a and the other electrode plate 3 in tight contact therewith. The electrode plates 2, 3 are connected to each other via a DC bias power source 4 and an AC power source 5. An AC voltage biased with a DC voltage is impressed between the plates 2 and 3 and corona discharge is generated in the air in the paper 1 to generate positive and negative ions as well as electrons. The generated positive and negative ions and electrons are respectively attracted toward the directions of the electrode plates 2 and 3. The polarity of the DC voltage of the plate 2 is positive and therefore the negative ions and electrons generated in the paper 1 are attracted to the plate 2. The negative ions and electrons pass through the paper plane 1-a and stick onto the surface of the layer 2-a provided on the surface of the plate 2. The surface of the layer 2-a is thus electrified.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は電荷保持性のある誘電体表面や通常の電子複写
機の感光体表面等を帯電する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for charging the surface of a dielectric material having charge retention properties, the surface of a photoreceptor of a typical electronic copying machine, and the like.

従来技術 誘電体の表面や複写機の感光体表面を一様に帯電しよう
とする場合、従来コロトロンやブラシ帯電器を用いたり
、放射線を利用する帯電装置等が使用されている。これ
らの装置によって誘電体表面や光導成体表面を実用上充
分に帯電することができるが、独立した帯電器や装置を
必要とするため、これらを部品として組込む装置を大型
化し、かつ複雑にするなどの問題がある。また放射線を
利用する装置では安全上の問題もある。Prior Art When attempting to uniformly charge the surface of a dielectric material or the surface of a photoreceptor in a copying machine, conventionally a corotron, a brush charger, a charging device using radiation, etc. have been used. Although these devices can charge the dielectric surface and the photoconductor surface sufficiently for practical use, they require separate chargers and devices, which makes the device that incorporates these components large and complex. There is a problem. There are also safety issues with devices that use radiation.

発明の目的 本発明は前述の問題点を解消し、°電荷保持性を有する
誘電体表面や光導電体表面などの一様帯゛亀を、従来用
いられているコロトロンやブック帯電器等によらず帯電
することのできる装置を提供することを目的とする。Purpose of the Invention The present invention solves the above-mentioned problems, and makes it possible to eliminate uniform bands on dielectric surfaces and photoconductor surfaces that have charge retention properties by using conventionally used corotrons, book chargers, etc. The object of the present invention is to provide a device that can be charged without any problems.

発明の構成 本発明装置の１つの基本的構成は空気を含むシート状部
材と、このシート状部材を挾む２つの電極と、２つの電
極間に直流ノくイアスミ圧と交流電圧を印加する電源と
、２つの電極の少なくとも１方のシート状部材に対向す
る面に設けられた誘電体とからなる。Structure of the Invention One basic structure of the device of the present invention is a sheet-like member containing air, two electrodes that sandwich this sheet-like member, and a power source that applies a DC insulating pressure and an AC voltage between the two electrodes. and a dielectric provided on the surface of at least one of the two electrodes facing the sheet-like member.

本発明装置の他の基本的構成は前記の構成において誘電
体とシート状部材との位置を入れかえたものに相当し、
２つの電極の少なくとも一方の上に設けられた空気を含
むソート状部材と、前記シート状部材の間またはシート
状部材と電極との間に挾まれた誘電体と、２つの電極間
に直流バイアス電圧と交流電圧を印加する電源とからな
る。Another basic configuration of the device of the present invention corresponds to the above configuration in which the positions of the dielectric material and the sheet-like member are swapped,
A sort-like member containing air provided on at least one of the two electrodes, a dielectric sandwiched between the sheet-like member or between the sheet-like member and the electrode, and a DC bias between the two electrodes. It consists of a voltage and a power source that applies an alternating voltage.

以下、添付図面に基づいて本発明装置の構成を具体的に
説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the apparatus of the present invention will be specifically described below based on the accompanying drawings.

第１図は不発明装置の１つの構成を示すものである。図
中１は内部に空気を含む紙等の用紙であり、２は表面に
電荷保持性を有する誘電体層２ａを有する電極板であり
、３は他の電極板である。用紙１は誘電体層２ａ７ｉ−
有する電極板２の誘電体層面と他の電極板３との間に密
着して挾まれ、電極２と電極３とは直流ノくイアスミ源
４と交流電源５を介して接続されている。FIG. 1 shows one configuration of the inventive device. In the figure, 1 is a paper such as paper containing air inside, 2 is an electrode plate having a dielectric layer 2a having charge retention property on the surface, and 3 is another electrode plate. Paper 1 has dielectric layer 2a7i-
The electrode plate 2 is tightly sandwiched between the dielectric layer surface of the electrode plate 2 and another electrode plate 3, and the electrodes 2 and 3 are connected via a DC insulator source 4 and an AC power source 5.

本発明装置ではこの状態で両電極２と３の間に直流電圧
をバイアスされた交流電圧を゛印加して用紙中の空気に
コロナ放電を生ぜしめ、正負のイオン、・１子を発生さ
せることを特徴とするものである。発生した正負のイオ
ン、電子は直ａ　バイアス電圧による電界によって、そ
れぞれ第２図（ａ）に示すように、電極２及び３の方向
に引よせられる。第１図の装置では、′電極板２の直流
電圧の極性が正であり、従って用紙中に生じた負イオン
と電子が電極板２に引よせられることになる。その結果
、負イオンと電子は用紙面１ｍを通過して電極板２の表
面にある誘電体層２ａ表面に、第２図（ｂ）に示すよう
に付着し、誘電体層２ａの面が帯電することになる。In the device of the present invention, in this state, an AC voltage biased with a DC voltage is applied between the electrodes 2 and 3 to cause a corona discharge in the air in the paper, and generate positive and negative ions. It is characterized by: The generated positive and negative ions and electrons are drawn toward the electrodes 2 and 3, respectively, by the electric field caused by the bias voltage, as shown in FIG. 2(a). In the apparatus shown in FIG. 1, the polarity of the DC voltage across the electrode plate 2 is positive, and therefore negative ions and electrons generated in the paper are attracted to the electrode plate 2. As a result, negative ions and electrons pass through 1 m of the paper surface and adhere to the surface of the dielectric layer 2a on the surface of the electrode plate 2, as shown in FIG. 2(b), and the surface of the dielectric layer 2a becomes electrically charged. I will do it.

本発明の装置では、使用する用紙は必ずしも紙である必
要はなく、内部に空気を含む多孔質性のシート状絶縁物
で、その表面に被帯電物体の面を接触させておいて、外
部かう直流バイアスした交流電圧を印加したときに、シ
ート状の多孔質物体内にコロナ放電を生じ、そのとき生
成したイオン、電子などにより、被帯電物体の表面を帯
電できればよい。In the device of the present invention, the paper used does not necessarily have to be paper, but a porous sheet-like insulating material containing air inside. It is only necessary that when an alternating current voltage with a direct current bias is applied, a corona discharge is generated within the sheet-like porous object, and the surface of the object to be charged can be charged by the ions, electrons, etc. generated at that time.

本発明装置の変形例を第３図〜第６図に示す。Modifications of the device of the present invention are shown in FIGS. 3 to 6.

第３図および第４図は二つの誘電体面を同時に帯電する
装置である。第３図の装置では電極２の誘電体層２ａの
面と絶縁シート７を帯電させるものであり、用紙ｌを誘
電体層２ａの面と構成にしたものであり、誘電体層面２
ａ及び３ａがそれぞれ負及び正に帯電する。これらの構
成においては、用紙及びこれを挾む誘電体層面、電極板
または絶縁シートの配置を互に入れかえてもよい。すな
わち電極面上に空気を含む紙のような多孔質性絶縁物の
層を設け、第１図、第３図及び第４図の用紙ｌの位置に
、帯電しようとする誘電体や光導電体をおいて、その表
裏に正負の帯電を行うことができる。この場合、光導電
体としてはその表面に高抵抗の誘電体層を有するか、又
は発光に感度を持たないか、感度が極めて低いものを使
用する。FIGS. 3 and 4 show an apparatus for simultaneously charging two dielectric surfaces. In the apparatus shown in FIG. 3, the surface of the dielectric layer 2a of the electrode 2 and the insulating sheet 7 are charged.
a and 3a are negatively and positively charged, respectively. In these configurations, the arrangement of the paper, the dielectric layer surfaces sandwiching it, the electrode plates, or the insulating sheets may be interchanged. That is, a layer of porous insulating material such as paper containing air is provided on the electrode surface, and a dielectric material or photoconductor to be charged is placed at the position of paper l in FIGS. 1, 3, and 4. Then, positive and negative charging can be performed on the front and back sides. In this case, the photoconductor used has a dielectric layer of high resistance on its surface, or has no or very low sensitivity to light emission.

第５図の装置は２つの電極および誘電体層を回転するロ
ール状にしたものであり、２ａが負に３＠が正に帯電す
る。この場合も用ｉｆと誘電体層２ａ及び３ａの配置を
入れかえると、誘電体板の表裏に正負の帯電を行うこと
ができる。The device shown in FIG. 5 has two electrodes and a dielectric layer in the form of a rotating roll, where 2a is negatively charged and 3@ is positively charged. In this case as well, if the arrangement of the dielectric layers 2a and 3a is switched, the front and back sides of the dielectric plate can be charged positively and negatively.

第６図は、光導電層もしくは誘電体層８を表面に備えた
回転するドラム状戒極３と、これに対向する回転ロール
電極２の上に絶縁体層９と用紙状の層ｌを備えたロール
との構成にした装置であり、この装置によればドラム状
の光４を体面や誘電体面を簡単に帯電することができる
。FIG. 6 shows a rotating drum-shaped electrode 3 having a photoconductive layer or a dielectric layer 8 on its surface, and an insulating layer 9 and a paper-like layer l on a rotating roll electrode 2 facing the rotating drum-shaped electrode 3. According to this device, a body surface or a dielectric surface can be easily charged with a drum-shaped light 4.

本発明の帯電装置によれば、用紙１として情報を有する
もの（例えば印刷物）を用いると、第１図、第４図およ
び第５図の誘電体層または光４′電体層の面２ａ、３ａ
に用紙の片面または両面の静電ネガ潜像を得ることもで
きる。According to the charging device of the present invention, when a paper having information (for example, a printed matter) is used as the paper 1, the surface 2a of the dielectric layer or photoelectric layer 4′ shown in FIGS. 1, 4, and 5; 3a
It is also possible to obtain an electrostatic negative latent image on one or both sides of the paper.

第７図に第５図の構成による本発明の帯電装置を用いた
両面複写用の電子写真複写装置の１例を示す。図中、Ａ
％Ｂは表面に誘電体の薄層（マイラーシート）ヲ持つ電
極ドラムであり、Ａ、８間にはＡを正、Ｂを負とする直
流バイアス電圧を重畳した交流電圧が印加されている。FIG. 7 shows an example of an electrophotographic copying apparatus for double-sided copying using the charging device of the present invention having the configuration shown in FIG. In the figure, A
%B is an electrode drum having a dielectric thin layer (Mylar sheet) on its surface, and an alternating current voltage superimposed with a direct current bias voltage with A being positive and B being negative is applied between A and 8.

今、両面原稿用紙１０が搬送ロール１１によりガイド手
段１２７ｉ−経て除電部で除電器２１によりその両面が
除電された後、ＡｓＢ’ｉｔ極ドラムの両誘電体面の間
に送り込まれる。Ａ、Ｂの周速は原稿の搬送速度と等し
くなっており、Ａ、Ｂは原稿を挾持しながら図の左方へ
と原稿を搬送する。このとき原稿用紙層中ｌこはコロナ
放電による正負のイオンが生じ、これらは原稿両面を通
り、それぞれ逆の極性を持つＡ、Ｈの電極ドラムの誘電
体面に付着し、それらの面に原稿両面の画像に対応する
ネガ潜像が形成される。すならのネガ潜像は反転現像手
段１３により現像され、ポジトナー像がＡｌＢの各誘電
体面に形成される。次にこれらの現像像は転写材搬送ロ
ール１４およびガイド１５を経て送られた転写材１６に
転写帯電器１７により転写された後定着される。このプ
ロセスの終了後、各ドラム面は除電帯電器２０により除
電されて、次回のプロセスに使用される。Now, the double-sided original paper 10 is passed through the guide means 127i by the transport roll 11, and after electricity is removed from both sides by the static eliminator 21 in the static eliminator, it is sent between the two dielectric surfaces of the AsB'it pole drum. The circumferential speeds of A and B are equal to the conveyance speed of the document, and A and B convey the document to the left in the figure while holding the document between them. At this time, positive and negative ions are generated in the document paper layer due to corona discharge, and these ions pass through both sides of the document and adhere to the dielectric surfaces of electrode drums A and H, which have opposite polarities. A negative latent image corresponding to the image is formed. The normal negative latent image is developed by the reversal developing means 13, and a positive toner image is formed on each dielectric surface of the AlB. Next, these developed images are transferred by a transfer charger 17 onto a transfer material 16 sent via a transfer material transport roll 14 and a guide 15, and then fixed. After this process is completed, each drum surface is neutralized by the neutralizing charger 20 and used for the next process.

第７図の複写機で原稿の片面についてのみ複写を行う場
合には、一方の現像、転写、定着プロセスを実施しない
ようにするだけでよく、これによって他に支障をきたす
ことはない。When the copying machine of FIG. 7 copies only one side of a document, it is only necessary to omit one side of the development, transfer, and fixing process, and this does not cause any trouble to the other side.

実施何重 用紙１として印刷用上質紙、電極２として表面にマイラ
一層を備えたステンレス板、′成極３としてステンレス
板を使用した第１図の構成の装置において交流電圧とし
て１ＫＨｚ、　３ＫＶ直流バイアス電圧として２００〜
５００Ｖｒ／印加したところ誘電体層２ａの表面に約５
００〜１５００ｐＣ／Ｊの負の帯′αを得ることができ
た。しかし、印加電圧が十分でないために層中の放電む
らが生じるため帯電の均一性が良好でなくなる。直流バ
イアス電圧の極性を逆にしたところ、２ａの表面に正の
帯電を得ることができた。この場合帯電むらは負帯電よ
りも少なかった。In an apparatus configured as shown in Fig. 1, using a high-quality paper for printing as paper 1, a stainless steel plate with a single layer of Mylar on the surface as electrode 2, and a stainless steel plate as polarization 3, an AC voltage of 1 KHz and a 3 KV DC bias were applied. 200~ as voltage
When 500Vr was applied, about 5V was applied to the surface of the dielectric layer 2a.
A negative band 'α of 00 to 1500 pC/J could be obtained. However, since the applied voltage is not sufficient, discharge unevenness occurs in the layer, resulting in poor charging uniformity. When the polarity of the DC bias voltage was reversed, a positive charge could be obtained on the surface of 2a. In this case, the charging unevenness was less than that of negative charging.

実施例２ 実施例１で使用した装置の用紙１と電極３との間にマイ
ラーシートを入れ、前記の場合より交流電圧７ｉ−１Ｋ
Ｖ程度高くしたところ誘電体）Ｖ！２ａの面に均一な帯
ｄを行うことができた。Example 2 A mylar sheet was inserted between the paper 1 and the electrode 3 of the device used in Example 1, and an AC voltage of 7i-1K was applied from the above case.
When the voltage was increased by about V, the dielectric material) V! A uniform band d could be formed on the surface of 2a.

実施例３ 電極２及び３として共に表面にマイラ一層を備えた銅板
を使用し、また用紙１として印刷用上質紙を使用した第
４図の構成の装置において、実施例１の場合と同じ条件
で電圧を印加したところ２ａには負の、　３ｍには正の
きめの細かい帯電を同時に行うことができた。Example 3 In an apparatus configured as shown in FIG. 4, using copper plates with a single layer of Mylar on the surface as electrodes 2 and 3, and using high-quality paper for printing as paper 1, under the same conditions as in Example 1. When voltage was applied, fine-grained charging could be simultaneously applied to 2a and 3m, negative and positive, respectively.

本発明の装置では、交流電圧の印加値を高めれば強い帯
電が行えるが、安全上から６ＫＶ以Ｆが好ましい。８彼
数はＴｔ圧圧印待時間門係があるが、本発明の装置では
１１Ｆｚの場合１〜５秒で充分であった。周波数を低く
すると帯電むらが生じ、高くすると電極縁端部分での発
光等が生じやすくなった。In the device of the present invention, strong charging can be achieved by increasing the applied AC voltage, but from the viewpoint of safety, 6 KV or more is preferable. Although there is a Tt coining waiting time for 800 Hz, in the case of 11 Fz, 1 to 5 seconds was sufficient with the apparatus of the present invention. When the frequency was set low, uneven charging occurred, and when the frequency was set high, light emission was likely to occur at the edge of the electrode.

発明の効果 本発明によれば、従来のコロトロンやグラフ帯゛ｔ４器
等の特別の装置によらず、二つの誘電体面、あるいは一
つの誘・４体の両面を同時に帯電するこきができ、これ
を組込む装置全体が複雑化することなく小型化できる。Effects of the Invention According to the present invention, it is possible to simultaneously charge two dielectric surfaces or both sides of one dielectric material without using special equipment such as a conventional corotron or graph band device. The entire device incorporating the can be downsized without becoming complicated.

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

第１図は本発明装置４例の基本４’ｔ’；成因、第２図
（ａ）　、（ｂ）は本発明装置における帯電の原理の説
明１凶、第３商、第４図、第５図及び第６図は各々本発
明装置の他の構成図、第７図は本発明装置を組込んだ両
面複写用ｔば子写−Ａ復写機の概要図である。 図中符号： ｌ・・・用紙；ｇＨ２，−３・・・電極板；４・・・直
流バイアス電源：５・・・交流電源；６・・・帯電電荷
；７・・・絶縁シート；８・・・光４を体層：９・・・
絶縁体層：１゜・・・両面原稿用紙：ｌｌ・・・原稿搬
送ロール；１２・・・搬送ガイド手段；１３・・・反転
現像手段；１４・・・転写材搬送ロール：１５・・・転
写材ガイド手段：工６・・・転写材：１７・・・転写帯
電器：１８・・・剥離帯電器；１９・・・定着手段；２
０．２１・・・除電帯電器。 （ほか３名） 第　１　図　糖 第　２　図 第　３　図　第　４　図 第　６　図Figure 1 shows the basics of four examples of the device of the present invention; Figures 2 (a) and (b) explain the principle of charging in the device of the present invention; 5 and 6 are respectively other configuration diagrams of the apparatus of the present invention, and FIG. 7 is a schematic diagram of a T-copy-A copying machine for double-sided copying incorporating the apparatus of the present invention. Symbols in the figure: l... Paper; gH2, -3... Electrode plate; 4... DC bias power supply: 5... AC power supply; 6... Charged charge; 7... Insulating sheet; 8 ... Light 4 body layer: 9...
Insulator layer: 1°...Double-sided manuscript paper: ll...Document conveyance roll; 12...Conveyance guide means; 13...Reverse development means; 14...Transfer material conveyance roll: 15... Transfer material guide means: 6... Transfer material: 17... Transfer charger: 18... Peeling charger; 19... Fixing means; 2
0.21...Electrostatic charger. (3 others) Figure 1 Sugar Figure 2 Figure 3 Figure 4 Figure 6

Claims (1)

【特許請求の範囲】 １　空気を含むシート状部材と、このシート状部材を挾
む２つの・電極と、２つの電極間に直流バイアス電圧と
交流電圧を印加する電源と、２つの′電極の少なくとも
ｌ方のシート部材に対向する而に設けられた誘′一体と
からなることを特徴とする帯電装置。 ２２つの電極の少なくとも一方の上に設けられた空気を
含むシート状部材と、前記二枚のシート状部材の間また
は前記一枚のシート状部材と電極きの間に挾まれた誘電
体と、２つの電極間に直流バイアス′電圧と交流電圧を
印加する電源とからなることを特徴とする帯電装置。[Claims] 1. A sheet-like member containing air, two electrodes sandwiching the sheet-like member, a power source that applies a DC bias voltage and an AC voltage between the two electrodes, and two electrodes that apply a DC bias voltage and an AC voltage between the two electrodes. 1. A charging device comprising a dielectric integrally provided opposite to at least one sheet member. a sheet-like member containing air provided on at least one of the two electrodes, and a dielectric sandwiched between the two sheet-like members or between the one sheet-like member and the electrode; A charging device comprising a power source that applies a DC bias voltage and an AC voltage between two electrodes.
JP24224583A 1983-12-23 1983-12-23 Electrifying device Granted JPS60134261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24224583A JPS60134261A (en) 1983-12-23 1983-12-23 Electrifying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24224583A JPS60134261A (en) 1983-12-23 1983-12-23 Electrifying device

Publications (2)

Publication Number Publication Date
JPS60134261A true JPS60134261A (en) 1985-07-17
JPH0210425B2 JPH0210425B2 (en) 1990-03-08

Family

ID=17086401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24224583A Granted JPS60134261A (en) 1983-12-23 1983-12-23 Electrifying device

Country Status (1)

Country Link
JP (1) JPS60134261A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149668A (en) * 1986-12-15 1988-06-22 Canon Inc Contact electric charging method
USRE35581E (en) * 1986-12-15 1997-08-12 Canon Kabushiki Kaisha Charging device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63149668A (en) * 1986-12-15 1988-06-22 Canon Inc Contact electric charging method
JPH0352058B2 (en) * 1986-12-15 1991-08-08 Canon Kk
USRE35581E (en) * 1986-12-15 1997-08-12 Canon Kabushiki Kaisha Charging device

Also Published As

Publication number Publication date
JPH0210425B2 (en) 1990-03-08

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