JPS6252868B2 - - Google Patents
Info
- Publication number
- JPS6252868B2 JPS6252868B2 JP55141007A JP14100780A JPS6252868B2 JP S6252868 B2 JPS6252868 B2 JP S6252868B2 JP 55141007 A JP55141007 A JP 55141007A JP 14100780 A JP14100780 A JP 14100780A JP S6252868 B2 JPS6252868 B2 JP S6252868B2
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- contact
- charging device
- contactor
- 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.)
- Expired
Links
- 229920000642 polymer Polymers 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 4
- 230000005684 electric field Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims 1
- 229920001169 thermoplastic Polymers 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- 108091008695 photoreceptors Proteins 0.000 description 20
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 238000004140 cleaning Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 210000004209 hair Anatomy 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- IICCLYANAQEHCI-UHFFFAOYSA-N 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound O1C(=O)C(C(=C(Cl)C(Cl)=C2Cl)Cl)=C2C21C1=CC(I)=C(O)C(I)=C1OC1=C(I)C(O)=C(I)C=C21 IICCLYANAQEHCI-UHFFFAOYSA-N 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 229930187593 rose bengal Natural products 0.000 description 1
- 229940081623 rose bengal Drugs 0.000 description 1
- STRXNPAVPKGJQR-UHFFFAOYSA-N rose bengal A Natural products O1C(=O)C(C(=CC=C2Cl)Cl)=C2C21C1=CC(I)=C(O)C(I)=C1OC1=C(I)C(O)=C(I)C=C21 STRXNPAVPKGJQR-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
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
- G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
- G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
- G03G15/0233—Structure, details of the charging member, e.g. chemical composition, surface properties
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
Description
【発明の詳細な説明】
この発明はたとえば電子写真複写機の感光体に
帯電するための帯電装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a charging device for charging a photoreceptor of, for example, an electrophotographic copying machine.
現在、ほとんどの電子写真複写機に使用されて
いるのはコロナ帯電器であるが、コロナ帯電器は
高圧を使用するために危険であり、オゾン発生に
よる大気および機器の汚染があり、かつ高価なも
のになる点で問題があつた。一方、古くから種々
試されてきたローラーやブラシによる帯電器も感
光体を機械的に傷つけたり、電気的に損傷したり
するという問題があつた。 Corona chargers are currently used in most electrophotographic copying machines, but corona chargers use high pressure, are dangerous, pollute the atmosphere and equipment due to ozone generation, and are expensive. There was a problem in making it a reality. On the other hand, charging devices using rollers or brushes, which have been tried in various ways for a long time, have had the problem of mechanically damaging the photoreceptor or electrically damaging it.
そこで、上述のような問題点を解消するため
に、本出願人は特願昭55―30093号として既に出
願している。第１図は上記出願の概略的構成を示
すもので、ａはZnOなどの感光体、ｂは適度な抵
抗を持つた電極、ｃは細い毛足の密生した布のよ
うな電気抵抗体、ｄは上記電極ｂに直流電圧を印
加する直流電源、ｅは電極ｂにコンデンサｆを介
して交流電圧を印加する交流電源、ｇは交流電界
を減衰せしめるためのコンデンサである。このよ
うに構成された接触帯電装置に直流電圧と交流電
圧を印加すると、第２図で示すように第１図のＡ
点では交流電圧が最も高くなり、Ｂ点側に移るに
したがつて交流電圧は減衰するが、直流電圧は
AB間ではほとんど不変の電位分布を持つてお
り、感光体ａに対する繰り返し帯電に非常に良好
な結果を得ている。 Therefore, in order to solve the above-mentioned problems, the present applicant has already filed an application as Japanese Patent Application No. 55-30093. Figure 1 shows the schematic structure of the above application, where a is a photoreceptor such as ZnO, b is an electrode with a moderate resistance, c is an electric resistor like a cloth with dense piles, and d is a DC power supply that applies a DC voltage to the electrode b, e is an AC power supply that applies an AC voltage to the electrode b via a capacitor f, and g is a capacitor for attenuating the AC electric field. When a DC voltage and an AC voltage are applied to the contact charging device configured in this way, as shown in FIG.
The AC voltage is highest at point B, and as it moves toward point B, the AC voltage attenuates, but the DC voltage is
The potential distribution between A and B is almost unchanged, and very good results have been obtained in repeatedly charging the photoreceptor a.
しかしながら、被帯電体である感光体ａの帯電
効率は接触子抵抗と直接的に関係しており、通常
の繊維を使用した場合、第３図に示した市販レー
ヨン別珍イ、アクリル繊維植毛布ロのごとく30〜
80％PHの湿度変化で４乗程度の抵抗変化をする。
したがつて、湿度により帯電効率が著しく変化
し、これらは実用的でないという事情がある。 However, the charging efficiency of the photoreceptor a, which is the body to be charged, is directly related to the contact resistance. Nototoku 30～
A change in humidity of 80% PH causes a change in resistance to the fourth power.
Therefore, the charging efficiency changes significantly depending on humidity, making these methods impractical.
この発明は上記事情に着目してなされたもの
で、その目的とするところは被帯電体に接触して
帯電させるための接触子が外気の湿度変化によつ
て抵抗変化することなく、帯電特性を安定させる
ことができる帯電装置を提供しようとするもので
ある。 This invention was made in view of the above-mentioned circumstances, and its purpose is to maintain the charging characteristics of a contactor for contacting and charging an object to be charged without changing its resistance due to changes in the humidity of the outside air. The present invention aims to provide a charging device that can be stabilized.
以下、この発明を図面に示す一実施例にもとず
いて説明する。第４図は電子複写機の基本的構成
を示すもので、１は本体である。この本体１の上
面には原稿載置台２が設けられ、これは本体１内
に設けられた駆動モータ３により往復運動するよ
うになつている。本体１内のほぼ中央部には上記
載置台２と同期的に回転する被帯電体としてのド
ラム状の酸化亜鉛―樹脂分散剤感光体４が軸支さ
れている。感光体４と原稿載置台２との間にはラ
ンプ５、集束性光伝送体６などからなる露光系７
が設けられ、原稿載置台２上にある原稿を照射
し、その反射光を感光体４に導びいて原稿像を結
像するようになつている。この結像位置から感光
体４の回転方向に沿つて順に現像装置８、転写装
置９、清掃装置１０および後述する帯電装置１１
が配設されている。上記現像装置８は上記露光系
７によつて感光体４の表面に形成される原稿の潜
像を顕像化するものである。上記転写装置９は感
光体４に形成される原稿トナー像を複写紙ｐに転
写するものであり、上記清掃装置１０は感光体４
の表面に残留するトナーを除去するものである。
また、上記本体１の底部には複写紙ｐを収容する
着脱自在なカセツト１２と、上記複写紙ｐを給出
する給紙ローラ１３とからなる給紙装置１４が設
けられている。また、転写装置９は転写ローラ１
５と複数個のガイドローラ１６，１６との間に掛
渡されたマイラ（商品名）などの絶縁性を有する
転写ベルト１７とから構成されている。そして、
この転写ベルト１７は、上記感光体４の外周面の
一部に接触しているとともに、この転写ベルト１
７には基本的に帯電装置１１と同一構造の転写用
帯電装置１８とクリーニングブレード１９とが接
触している。さらに、この転写ベルト１７の搬出
端側には定着装置２０および搬出ローラ２１が設
けられ、上記転写装置９によつて画像が転写され
た複写紙ｐを着したのちトレイ２２に搬出するよ
うになつている。なお、２３は制御装置である。 The present invention will be explained below based on an embodiment shown in the drawings. FIG. 4 shows the basic configuration of an electronic copying machine, where 1 is the main body. A document mounting table 2 is provided on the upper surface of the main body 1, and is configured to reciprocate by a drive motor 3 provided within the main body 1. A drum-shaped zinc oxide-resin dispersant photoreceptor 4, which rotates synchronously with the mounting table 2 and serves as a charged member, is pivotally supported approximately at the center of the main body 1. An exposure system 7 including a lamp 5, a focusing light transmitter 6, etc. is located between the photoreceptor 4 and the original table 2.
is provided to irradiate the document placed on the document table 2 and guide the reflected light to the photoreceptor 4 to form an image of the document. From this image forming position, in order along the rotational direction of the photoreceptor 4, a developing device 8, a transfer device 9, a cleaning device 10, and a charging device 11, which will be described later.
is installed. The developing device 8 visualizes the latent image of the document formed on the surface of the photoreceptor 4 by the exposure system 7. The transfer device 9 transfers the original toner image formed on the photoreceptor 4 onto the copy paper p, and the cleaning device 10 transfers the original toner image formed on the photoreceptor 4 to the copy paper p.
This removes toner remaining on the surface of the
Further, at the bottom of the main body 1, there is provided a paper feeding device 14 consisting of a removable cassette 12 for storing copy paper p, and a paper feed roller 13 for feeding the copy paper p. The transfer device 9 also includes a transfer roller 1.
5 and a transfer belt 17 having an insulating property such as Mylar (trade name), which is stretched between a plurality of guide rollers 16, 16. and,
This transfer belt 17 is in contact with a part of the outer circumferential surface of the photoreceptor 4, and this transfer belt 17
7, a transfer charging device 18 having basically the same structure as the charging device 11 and a cleaning blade 19 are in contact with each other. Furthermore, a fixing device 20 and a delivery roller 21 are provided on the delivery end side of the transfer belt 17, and the copy paper p onto which the image has been transferred by the transfer device 9 is delivered to the tray 22 after being attached thereto. ing. Note that 23 is a control device.
なお、モータ３は排気フアン付のモータで、こ
のモータの回転に伴つて露光係７で発生した熱を
本体１外へ排気するようになつている。また、感
光体４は、厚さ0.8mm、直径80mm程度の薄肉アル
ミドラムに、ローズベンガルの如き色素によつて
増感された酸化亜鉛―樹脂分散剤のバインダータ
イプの感光体を塗布してなるものである。さら
に、上述したクリーニングブレード１９は、転写
ベルト１７に付着したトナーなどをかき落し転写
ベルト１７を清掃するものである。 The motor 3 is a motor equipped with an exhaust fan, and is designed to exhaust heat generated in the exposure section 7 as the motor rotates to the outside of the main body 1. The photoreceptor 4 is formed by coating a thin aluminum drum with a thickness of 0.8 mm and a diameter of about 80 mm with a binder type photoreceptor of zinc oxide-resin dispersant sensitized with a dye such as rose bengal. It is something. Further, the cleaning blade 19 mentioned above scrapes off toner and the like adhering to the transfer belt 17 to clean the transfer belt 17.
つぎに、上記帯電装置１１について第５図にも
とずいて説明する。２４は基体であるところの帯
電器ベースである。この帯電器ベース２４はアク
リルまたはABSなどの樹脂材料によつて角柱状
に成形され、この背面には係合溝２５を有する取
付部材２６が固されている。そして、この取付部
材２６の係合溝２５は本体１に設けられたガイド
枠２７にスライド自在に係合支持されている。さ
らに、上記帯電器ベース２４の前部にはシート状
の重合体２８が着脱可能に装着されている。この
重合体２８はその前面すなわち上記感光体４に接
する側に接触子２９、この裏面側に電極３０が層
状に重合されている。そして、上記接触子２９は
別珍（Velveteen）状の布で、この基布３１にレ
ーヨン繊維、長さ３mm、太さ５デニール、密度
16000本／cm2の毛体３２を植毛することにより構
成されている。さらに、この接触子２９の電気抵
抗体は導電性粒子を分散した高分子たとえば、バ
イロン300（東洋紡社製、熱可塑性高分子ポリエ
スル）8g、VULCAN―XC―72（CABOT社製カ
ーボン）2g、KEK（メチル・エチル・ケトン）
95g、トルエン95gからなる溶剤に１分間浸漬し
たのち、取り出して常温で乾燥させることにより
コーテイングされており、上記毛体３２は10デニ
ールのポリプロピレンフアーによつて起毛されて
いる。また、電極３０はカーボン（CABOT社製
VULCAN―XC―72）＋SBR（旭化成社タフブレ
ン）＋キシレン樹脂（三菱ガス化学社ニカロー
ル）からなる導電性ゴムで抵抗値は106Ωcmに設
定されている。このように構成された帯電装置１
１の接触子２９は、本出願人の実験によれば第３
図ハで示すように、湿度が変化してもその抵抗値
変化はわずかであることが解つた。したがつて、
この接触子２９を用いた帯電装置１１は外気の湿
度変化による帯電特性がほとんどなく安定する。 Next, the charging device 11 will be explained based on FIG. 5. 24 is a charger base which is a base body. The charger base 24 is formed into a prismatic shape from a resin material such as acrylic or ABS, and a mounting member 26 having an engagement groove 25 is fixed to the back surface of the charger base 24 . The engagement groove 25 of the attachment member 26 is slidably engaged and supported by a guide frame 27 provided on the main body 1. Further, a sheet-like polymer 28 is detachably attached to the front portion of the charger base 24. This polymer 28 has a contact 29 on its front surface, that is, the side in contact with the photoreceptor 4, and an electrode 30 on its back surface. The contactor 29 is made of velveteen-like cloth, and the base cloth 31 is made of rayon fiber, length 3 mm, thickness 5 denier, density
It is constructed by implanting 16,000 hairs/cm 2 of hairs 32. Furthermore, the electrical resistor of this contactor 29 is made of a polymer having conductive particles dispersed therein. (methyl ethyl ketone)
After being immersed in a solvent consisting of 95 g of toluene and 95 g of toluene for 1 minute, the hair body 32 is coated by immersing it in a solvent consisting of 95 g of toluene for 1 minute, taking it out and drying it at room temperature, and the bristles 32 are raised with 10 denier polypropylene fur. In addition, the electrode 30 is made of carbon (manufactured by CABOT).
The conductive rubber is made of VULCAN-XC-72) + SBR (Asahi Kasei's ToughBrain) + xylene resin (Mitsubishi Gas Chemical's Nicarol), and its resistance value is set to 10 6 Ωcm. Charging device 1 configured in this way
According to the applicant's experiments, the contactor 29 of the first contactor 29 is the third contactor 29
As shown in Figure C, it was found that even when the humidity changed, the resistance value changed only slightly. Therefore,
The charging device 11 using this contactor 29 has almost no charging characteristics due to changes in the humidity of the outside air and is stable.
なお、上記のように構成された重合体２８の電
極３０は直流電源３３と交流電源３４にそれぞれ
接続され、直流電圧と交流電圧が印加されるよう
になつている。 The electrodes 30 of the polymer 28 configured as described above are connected to a DC power source 33 and an AC power source 34, respectively, so that a DC voltage and an AC voltage are applied thereto.
しかして、原稿載置台２上の原稿の複写を行な
う場合には複写スタートボタンを押すことによ
り、各装置は公知の作動によつて原稿複写像が得
られた複写紙ｐをトレイ２２に排出することがで
きる。このとき、帯電装置１１においては、感光
体４の回転にともない電極３０に直流電圧と交流
電圧が印加され、短時間で感光体４は帯電される
ことになる。 When copying the original on the original platen 2, by pressing the copy start button, each device discharges the copy paper p on which the original copy image has been obtained to the tray 22 by a known operation. be able to. At this time, in the charging device 11, a DC voltage and an AC voltage are applied to the electrode 30 as the photoreceptor 4 rotates, and the photoreceptor 4 is charged in a short time.
この発明は以上説明したように、被帯電体に接
触させて帯電させる接触子の電気抵抗体を導電性
粒子を分散した高分子によりコーテイングされた
繊維としたから、外気湿度が変化しても抵抗値は
わずかに変化するだけであり、安定した帯電特性
を得ることができる。 As explained above, this invention uses fibers coated with a polymer in which conductive particles are dispersed as the electrical resistor of the contact that is brought into contact with and charged the object to be charged, so that it has resistance even when the outside air humidity changes. The value changes only slightly, and stable charging characteristics can be obtained.
第１図は接触帯電装置の原理を示す概略的説明
図、第２図は同じく感光体にかかる電圧分布を示
す説明図、第３図は従来の接触子と、この発明の
接触子の特性を示すグラフ、第４図はこの発明の
帯電装置を採用した電子複写機の概略的構成図、
第５図はこの発明の帯電装置の一実施例を示す断
面図である。
４…感光体（被帯電体）、２９…接触子、３０
…電極。
Fig. 1 is a schematic explanatory diagram showing the principle of a contact charging device, Fig. 2 is an explanatory diagram also showing the voltage distribution applied to the photoreceptor, and Fig. 3 shows the characteristics of a conventional contact and a contact of the present invention. The graph shown in FIG. 4 is a schematic diagram of an electronic copying machine employing the charging device of the present invention.
FIG. 5 is a sectional view showing an embodiment of the charging device of the present invention. 4... Photoreceptor (charged body), 29... Contactor, 30
…electrode.
Claims (1)
の接触子に当接された電極と、この電極に電界を
印加する手段とを有し、被帯電体に上記接触子を
接触させて帯電させる帯電装置において、上記接
触子はその電気抵抗体を導電性粒子を分散した高
分子によりコーテイングされた繊維としたことを
特徴とする帯電装置。 ２ 導電性粒子はカーボンであることを特徴とす
る特許請求の範囲第１項記載の帯電装置。 ３ 高分子は熱可塑性の高分子ポリエステルであ
ることを特徴とする特許請求の範囲第１項または
第２項記載の帯電装置。[Scope of Claims] 1. A contactor provided with a flexible electrical resistor, an electrode in contact with the contactor, and means for applying an electric field to the electrode, the contactor being provided with a flexible electrical resistor, and means for applying an electric field to the electrode. 1. A charging device that charges a contact by contacting the contact, wherein the contact has an electrical resistor made of a fiber coated with a polymer having conductive particles dispersed therein. 2. The charging device according to claim 1, wherein the conductive particles are carbon. 3. The charging device according to claim 1 or 2, wherein the polymer is a thermoplastic polymeric polyester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14100780A JPS5764753A (en) | 1980-10-08 | 1980-10-08 | Charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14100780A JPS5764753A (en) | 1980-10-08 | 1980-10-08 | Charging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5764753A JPS5764753A (en) | 1982-04-20 |
| JPS6252868B2 true JPS6252868B2 (en) | 1987-11-07 |
Family
ID=15282011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14100780A Granted JPS5764753A (en) | 1980-10-08 | 1980-10-08 | Charging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5764753A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746265A (en) * | 1980-09-03 | 1982-03-16 | Canon Inc | Electricity charging equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7101469U (en) * | 1970-01-16 | 1971-08-26 | Eastman Kodak Co | DEVICE FOR APPLYING AN ELECTRICAL CHARGE TO A SHEET |
| JPS54177931U (en) * | 1978-06-05 | 1979-12-15 |
-
1980
- 1980-10-08 JP JP14100780A patent/JPS5764753A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746265A (en) * | 1980-09-03 | 1982-03-16 | Canon Inc | Electricity charging equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5764753A (en) | 1982-04-20 |
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