JPS5846365A - Developing device for recorder - Google Patents

Developing device for recorder

Info

Publication number
JPS5846365A
JPS5846365A JP14436681A JP14436681A JPS5846365A JP S5846365 A JPS5846365 A JP S5846365A JP 14436681 A JP14436681 A JP 14436681A JP 14436681 A JP14436681 A JP 14436681A JP S5846365 A JPS5846365 A JP S5846365A
Authority
JP
Japan
Prior art keywords
toner
tank
supply port
conductive member
recorder
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
JP14436681A
Other languages
Japanese (ja)
Other versions
JPH046949B2 (en
Inventor
Satoru Tomita
冨田 悟
Haruhiko Nagayama
永山 治▲ひこ▼
Shunsuke Fujita
俊介 藤田
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP14436681A priority Critical patent/JPS5846365A/en
Publication of JPS5846365A publication Critical patent/JPS5846365A/en
Publication of JPH046949B2 publication Critical patent/JPH046949B2/ja
Granted 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
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0896Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
    • G03G15/0898Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894 for preventing toner scattering during operation, e.g. seals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To prevent the scattering of a toner and to eliminate the contamination in a recorder by disposing conductive members in proximity to a carrier for electrostatic images and applying a prescribed voltage upon said members. CONSTITUTION:Conductive members 15, 16 in proximity to a recording medium 1 are mounted via an insulator S to a supply port 13 for a developer D of a tank 12. A prescribed voltage is applied to the members 15, 16 by an electric power source E to prevent the scattering of the toner D through the supply port 13 of the tank by the electric field curtain formed by said application. Thus the contamination in the recorder is prevented.

Description

【発明の詳細な説明】 本発明は、記録装置における現宙装置に関し、特に乾式
現儂剤に含まれるトナーが現儂装置外に飛散するのを防
止するようにした現冑装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a current device in a recording apparatus, and more particularly to a developer device that prevents toner contained in a dry developer from scattering outside the current device.

上記記録装置の概要について説明すると、第1図に示す
ように、潜ψ担持体となる無端ベルト状記録体1t−従
動ローラ2と駆動ローラ3間に掛は渡し、記録体1の周
囲には、無用の電位を除去する除電装置番と、無用の残
留トナーat除去するクリーニング装置5と、記録体1
に所要の電位を与える帯電装置6ど、配碌体IK画9等
を投影する露光装置7と、露光による記録体1の潜g1
を顕像化する現惰装置8と、記録体重の顕像を転写紙P
に転写する転写装置9と、転写紙POsr熱定着熱定着
定着装置10とを工程順に備える構成となっている。
To explain the outline of the above-mentioned recording apparatus, as shown in FIG. , a static eliminator number for removing unnecessary potential, a cleaning device 5 for removing unnecessary residual toner, and a recording medium 1.
a charging device 6 that applies a required potential to the image, an exposure device 7 that projects an insulator IK image 9, etc., and a latent g1 of the recording medium 1 caused by exposure.
A developing device 8 that visualizes the recorded weight and a transfer paper P that visualizes the recorded weight.
The configuration includes a transfer device 9 that transfers the image to a sheet of paper, and a heat fixing device 10 that heats and fixes the transfer paper POsr in the order of steps.

この記録装置において、前配現つ装置8は乾式現實剤に
含まれるトナーによシ配録体1のfI!曹を現倫するも
のである。
In this recording apparatus, the pre-distributor 8 uses the toner contained in the dry developer to determine the fI of the recording medium 1! It is a tribute to Cao.

しかし、トナーは粉塵となって飛散し易く、帯電装@6
や転写装置9のコロナ放電器のチャージワイヤにも付着
し、itgIへ悪影響を与える原因となっているので、
コロナ放電器内にトナーその他か侵入しないような工夫
もな逼れている。t7t1飛散したトナーは配録装置内
atも汚染し、各種トラブルの原因となっている。
However, toner easily becomes dust and scatters, and the charging device @ 6
It also adheres to the charge wire of the corona discharger of the transfer device 9, causing an adverse effect on itgI.
Efforts have been made to prevent toner and other substances from entering the corona discharger. t7t1 The scattered toner also contaminates the AT inside the recording device, causing various troubles.

本発l1Mは、現gII装置内部からトナーか外に洩れ
出る原因となっている現冑装置の乾式現像剤供給口から
のトナー飛散を防止することによC1me鎌装置内をト
ナーで汚染することかないようKしようとするものであ
る。
This I1M prevents toner from contaminating the inside of the C1me sickle device by preventing toner from scattering from the dry developer supply port of the developing device, which is the cause of toner leaking out from inside the developing gII device. I am trying to do this so that it will not happen.

以下、第2図〜第5図に示す実施例により本発明を細割
するn 第1図は本発明の第1実施例を示し、現儂装置11はト
ナー倉吉む乾式現健剤Dt−収納したタンク12と、タ
ンク12内に設けられ、且つ腋タンク12の供給口13
から記録装置の記録体(潜會担持体)IK乾式現儂剤D
t−供給してll14a化を行なうiAgIIスリーブ
14とを備えている。
Hereinafter, the present invention will be subdivided according to the embodiments shown in FIGS. 2 to 5. FIG. a tank 12 provided in the tank 12 and a supply port 13 of the armpit tank 12;
From recording device recording body (latent carrier) IK dry ink agent D
It is provided with an iAgII sleeve 14 that supplies t- and performs ll14a conversion.

本発明によると、前記記録体1に近接する導電性部材1
5.16を絶縁体BfCより電気的に絶縁してタンクの
供給口13に取り付けである。導電性部材15.16H
夫々現gII有効域の上R@および下流側に位置し、電
源1によシ所定電位會与えられトナー飛散防止用の電界
カーテンを形成する。
According to the present invention, the conductive member 1 adjacent to the recording medium 1
5.16 is electrically insulated from the insulator BfC and attached to the supply port 13 of the tank. Conductive member 15.16H
They are located above and downstream of the current gII effective area, respectively, and are given a predetermined potential by the power supply 1 to form an electric field curtain for preventing toner scattering.

この実施例において、トナーか予め電荷t−有している
場合(例えば1成分、2成分によらず高抵抗トナーの場
合)Kは、導電性部材15.16に与える電位を任意に
選択することで、導電性部材135.16側にも記録体
1@にもトナーを移動名ゼることかでき、トナーが予じ
め電荷を有しない場合(低抵抗トナー、例えば1成分の
静電誘導型トナーの場合)には、導電性部材15.16
@にも記録体illにもトナーか付着する。後者の低抵
抗トナーの場合には、導電性部材15.16の記録体I
I/c対向する面を凹凸状とすることにょ夛、その表面
に突出端管形成させると同時に表面種を増加名ぜてトナ
ー付着特性を向上賂ゼ、導電性部材15.16側によシ
多くのトナーを付着させることができる。
In this embodiment, when the toner has a charge t in advance (for example, in the case of a high-resistance toner regardless of whether it is one component or two components), the potential K applied to the conductive members 15 and 16 can be arbitrarily selected. Therefore, toner can be transferred to the conductive member 135, 16 side as well as to the recording medium 1. If the toner does not have a charge in advance (low resistance toner, for example, a one-component electrostatic induction type) (in the case of toner), the conductive member 15.16
Toner adheres to both @ and the recording medium ill. In the case of the latter low-resistance toner, the recording medium I of the conductive member 15.16
By making the surface facing the I/C uneven, a protruding end tube is formed on the surface, and at the same time, the number of surface species is increased, and the toner adhesion characteristics are improved. A large amount of toner can be attached.

このよう゛に、導電性部材15.16の作る電界カーテ
ィにより、トナーかタンクの供給口1−8から飛散する
のが阻止逼れる。
In this manner, the electric field created by the conductive members 15, 16 prevents toner from scattering from the supply port 1-8 of the tank.

緋3図は本発明の第2実施例を示し、導電性部材15.
18に所定の電位1与える几め、帯電装置6尋のコロナ
放電器17からの放電電波を用りるようにしたもので、
例えばバリスタ、ツェナーダイオード°等を用いること
で容易に実施できる。
Figure 3 shows a second embodiment of the present invention, in which a conductive member 15.
A predetermined potential of 1 is applied to the charging device 18, and a discharge radio wave from the 6-fatty corona discharger 17 is used.
For example, this can be easily implemented using a varistor, a Zener diode, or the like.

仁の場合、放電器17の一部から電*V*丁ための電極
を用い、導電性部材15.16は記録体1の帯電極性と
同じ極性の所定電位か与えられる。
In the case of charging, an electrode for collecting electricity from a part of the discharger 17 is used, and the conductive members 15 and 16 are given a predetermined potential of the same polarity as the charging polarity of the recording medium 1.

第4図は本発明の第3実施例を示し、導電性部材15・
18t−接地した場合の例で、仁のタイプのものは記録
体1上の電荷を利用し、導電性部材15.18との間に
電界を形成せしめるものである。電界形成にあたっては
、導電性部材15.16を電気的に絶縁(フロート)す
ることでも可能でらる。何れの場合であっても、潜菅電
荷による電界で導電性部材15.16に電荷か誘導ある
いは分極され、電界カーテンか形成される。
FIG. 4 shows a third embodiment of the present invention, in which conductive members 15 and
18T - This is an example of a case in which the recording medium 15 is grounded, and the electric charge on the recording medium 1 is used to form an electric field between it and the conductive member 15.18. The electric field can also be created by electrically insulating (floating) the conductive members 15 and 16. In either case, charges are induced or polarized in the conductive members 15, 16 by the electric field caused by the latent charges, and an electric field curtain is formed.

第5図は本発明の第4実施例を示し、コロナ放電1)1
7に導電性部材15’l設けてこれtタンクの供給口1
3近傍まで延ばし、他方の導電性部材16Fi接地し、
コ党す放電器17の放電電諸と潜傷電#全利用して電界
カーテンを形成するようにしたものである。
FIG. 5 shows a fourth embodiment of the present invention, in which corona discharge 1) 1
7 is provided with a conductive member 15'l and this is connected to the supply port 1 of the tank.
3, and ground the other conductive member 16Fi,
The electric field curtain is formed by fully utilizing the discharge voltage and latent damage voltage of the discharge device 17.

以上各実施例について説明したが、要するに、本発明鍵
、現儂装置の近傍に潜資担持体と近接して導電性部材を
配置し、これに所定の電位を与えるか、あるいけフロー
ト状口とすることで、導電性部材と潜情担持体間に電気
的なフィールド°を形、+−・ 成するようにしたものであシ、これにより現*装置から
浮遊したトナーかこのフィールド°内から外に出ること
かきわめて少なくなるので、記録装置内部の汚染を防止
することかでき、各樵のトラブルを防ぐことができる。
Each of the embodiments has been described above, but in short, the key to the present invention is to arrange a conductive member near the current device and close to the latent capital carrier and apply a predetermined potential to it, or to use a float-like opening. By doing so, an electrical field is formed between the conductive member and the latent charge carrier, and this causes the toner floating from the current device to be absorbed within this field. Since there is very little need to go outside, it is possible to prevent contamination of the inside of the recording device, and troubles for each woodcutter can be prevented.

なお、前記したように、現像剤として1成分系。As mentioned above, the developer is a one-component system.

2成分系いずれの場合であっても、また、予め帯電して
いる、予め帯電していないトナーであっても、上記フィ
ールドでいずれかの方向に移動し、付着ぜしめられる。
Regardless of whether the toner is a two-component type or whether the toner is pre-charged or not, it moves in either direction in the field and is forced to adhere.

ちらに、記録装置として電子軍真弐のものを例示したか
、静電潜gIt−現官するものであればよく、潜書担持
体もベルト状のもの以外のものであってよく、現像装置
本図示したものに限定される−のではない。
In addition, although the recording device used by Denshi Gun Shinni is shown as an example, it is sufficient if it is an electrostatic latent recording device, the latent document carrier may be other than a belt-like one, and the developing device The invention is not limited to what is shown in this figure.

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

嬉1図は、一般的な電子写真方式記録装置の概要説明図
、第2図〜絡5図は夫々本発明の第1ないし第4実施例
に係る現倫装置の断面説明図である。 1・・・記録体(潜豐担持体)、11・・・現曽装置、
12・・・タンク、13−・供給口、14・−現俊スリ
ーブ、15.18−・・導電性部材、17・・・コロナ
放電器、D・・・乾式現書剤、S・・・絶縁体。 代理人 弁理士 今    緘 第1図 第2図     第3図 第4図     第5図
FIG. 1 is a schematic explanatory diagram of a general electrophotographic recording apparatus, and FIGS. 2 to 5 are cross-sectional explanatory diagrams of the present apparatus according to the first to fourth embodiments of the present invention, respectively. 1... Recording body (latent carrier), 11... Genso device,
12...tank, 13--supply port, 14--Genshun sleeve, 15.18--conductive member, 17--corona discharger, D--dry current agent, S... Insulator. Agent Patent Attorney Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

【特許請求の範囲】[Claims] 乾式現情剤を収納したタンクと、このタンク内に設けら
れ、且つ該タンクの供給口から配録装置の潜倫担持体に
乾式現情剤を供給して顕9化を行なう現菅スリーブとを
備えた記優装置の現gI装置において、前配潜慣担持体
に近接する導電性部材を電気的に絶縁して前記タンクの
供給口に設け、乾式現俸剤に含まれるトナーか該タンク
の供給口から飛散するのを抑止する電界カーテンt−m
記導電性部材により形成するようにしたことt−特命と
する記録装置の現資装置。
A tank containing a dry developing agent, and a sleeve provided in the tank and supplying the dry developing agent to a submerged carrier of a recording device from a supply port of the tank to perform visualization. In the current gI device, a conductive member in the vicinity of the pre-distribution carrier is electrically insulated and provided at the supply port of the tank, so that the toner contained in the dry toner is not removed from the tank. Electric field curtain t-m to prevent scattering from the supply port of
The current recording device is made of a conductive member.
JP14436681A 1981-09-12 1981-09-12 Developing device for recorder Granted JPS5846365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14436681A JPS5846365A (en) 1981-09-12 1981-09-12 Developing device for recorder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14436681A JPS5846365A (en) 1981-09-12 1981-09-12 Developing device for recorder

Publications (2)

Publication Number Publication Date
JPS5846365A true JPS5846365A (en) 1983-03-17
JPH046949B2 JPH046949B2 (en) 1992-02-07

Family

ID=15360434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14436681A Granted JPS5846365A (en) 1981-09-12 1981-09-12 Developing device for recorder

Country Status (1)

Country Link
JP (1) JPS5846365A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146825A2 (en) * 1983-11-30 1985-07-03 Unisys Corporation Electrostatic dust repeller for electrophotographic apparatus
JPS60125863A (en) * 1983-12-13 1985-07-05 Konishiroku Photo Ind Co Ltd Developing device
JPS60243678A (en) * 1984-05-18 1985-12-03 Matsushita Electric Ind Co Ltd Developing device
JPS63146068A (en) * 1986-12-10 1988-06-18 Fujitsu Ltd Developing device for electrophotographic device
JPS649259U (en) * 1987-07-08 1989-01-18
US5581336A (en) * 1993-12-17 1996-12-03 Canon Kabushiki Kaisha Developing device preventing scattering of developing agent by conductive member

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0146825A2 (en) * 1983-11-30 1985-07-03 Unisys Corporation Electrostatic dust repeller for electrophotographic apparatus
JPS60125863A (en) * 1983-12-13 1985-07-05 Konishiroku Photo Ind Co Ltd Developing device
JPH0451026B2 (en) * 1983-12-13 1992-08-17 Konishiroku Photo Ind
JPS60243678A (en) * 1984-05-18 1985-12-03 Matsushita Electric Ind Co Ltd Developing device
JPS63146068A (en) * 1986-12-10 1988-06-18 Fujitsu Ltd Developing device for electrophotographic device
JPS649259U (en) * 1987-07-08 1989-01-18
US5581336A (en) * 1993-12-17 1996-12-03 Canon Kabushiki Kaisha Developing device preventing scattering of developing agent by conductive member

Also Published As

Publication number Publication date
JPH046949B2 (en) 1992-02-07

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