JPS60474A - Developing device of copying machine or the like - Google Patents

Developing device of copying machine or the like

Info

Publication number
JPS60474A
JPS60474A JP8848083A JP8848083A JPS60474A JP S60474 A JPS60474 A JP S60474A JP 8848083 A JP8848083 A JP 8848083A JP 8848083 A JP8848083 A JP 8848083A JP S60474 A JPS60474 A JP S60474A
Authority
JP
Japan
Prior art keywords
toner
trimmer
copy
developing device
nozzle pipe
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
JP8848083A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Ishidate
石館 義之
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 JP8848083A priority Critical patent/JPS60474A/en
Publication of JPS60474A publication Critical patent/JPS60474A/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
    • G03G15/06Apparatus 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
    • G03G15/0822Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0887Arrangements for conveying and conditioning developer in the developing unit, e.g. agitating, removing impurities or humidity

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

PURPOSE:To obtain a copy of a good quality by placing a nozzle pipe on this side of a trimmer, and sucking and removing a foreign matter and a blocking toner, etc. CONSTITUTION:A nozzle pipe 8 on which plural sucking ports 7- are pierced is placed on a suitable part of this side of a trimmer 6, and connected to a vacuum device 11 by using a tube 10. The device 11 is operated as required, and a foreign matter such as a fiber, etc. in a toner 12, which is apt to collect by being caught by a trimmer gap part between the lower end part of the trimmer 6 and the upper part of a magnetic roll 3, or a blocking toner, etc. are sucked and removed successively. Accordingly, the cause of a copy defence is eliminated, the toner gap part is held in a normal state, a copy of a good quality is obtained, and the reliability can be impressed.

Description

【発明の詳細な説明】 (産業上の利用分野) 不発明は複写機等の現像装置に関する。[Detailed description of the invention] (Industrial application field) The invention relates to a developing device such as a copying machine.

(従来の技術) 感光体の表面に形成した静電潜像に衰像剤を付着させて
可視像をつくるにあ71cシ、トナーとキャリアを用い
る二成分褒像方式に対し、トナーとキャリアとの各々の
機能を一つのトナーに併せもたせる一成分塑像方式は、
装置の小型化が可能であると共に、観像濃度を調節する
ためのトナーの濃度の調節といったことが不要であるた
め、装置を安く造れ、又我像剤の劣化という問題は生じ
ないので富時安定したコピーの画質が得られるといった
メリットがある。
(Prior art) In contrast to the two-component image system that uses toner and carrier, in which a visible image is created by attaching an attenuator to an electrostatic latent image formed on the surface of a photoconductor, toner and carrier are used. The one-component molding method combines the following functions into one toner:
It is possible to downsize the device, and since there is no need to adjust the toner density to adjust the image density, the device can be manufactured cheaply, and there is no problem of deterioration of the image agent, so it is easy to use. This has the advantage of providing stable copy image quality.

ところで、この−成分刊像方式は、磁気現像方式を用い
るため、最終的に得られるコピーの画質を最適なものに
するには、マグロールの表面から感光体の表面にトナー
を磁気的に接@移動させる以@に、マグロール上に磁気
的Vこピックアップしたトナーの量を複写に最適な状態
にトリミング(規制)する必要があシ、通常このトリミ
ングは、前記マグロールの一周辺にトリマー(トナーの
層厚規制板)を配置し、該トリマーによって回転するマ
グロール上にピックアップされた磁気トナーを衝突させ
て規定量以外のトナーは通過させないようにして行ない
、その規定値、即ち前記トリマーを通過後のフグロール
のトナーの層厚は一般に0.7〜0.5mg前後といっ
た比較的小さい値であるため前記マグロールとトリマー
とによってつくられるギャップ即ちトリマーギャップは
非霜に小さいものにする必要がおった。
By the way, this -component printing method uses a magnetic development method, so in order to optimize the image quality of the final copy, it is necessary to magnetically connect the toner from the surface of the mag roll to the surface of the photoreceptor. Before moving the toner, it is necessary to trim (regulate) the amount of toner picked up by the magnetic V on the mag roll to the optimum state for copying.Usually, this trimming is done by installing a trimmer around one side of the mag roll. The magnetic toner picked up on the mag roll rotating by the trimmer is collided with the magnetic toner to prevent the toner from passing beyond a specified amount, and the specified value, that is, after passing through the trimmer Since the toner layer thickness of Fugrol is generally a relatively small value of around 0.7 to 0.5 mg, the gap created by the Magroll and trimmer, that is, the trimmer gap, had to be small enough to prevent frost.

しかしながらとのトリマーギャップを上述のように非常
に小さいものにすると、トナー中に紙、繊維、髪の毛等
の異物、或はトナー同志の衝突等で生じるブロッキング
トナー等が混入していた場合、これらのものが前記トリ
マーギャップ部に引掛って貯まつ′fi−シして、該部
分に相当するマグロール上のトナーの量、即ち前記トリ
マーでトリミング後のトナーの穂立て量が小なくなυ、
これが原因てこの部分に相当するイメージ像を薄くして
しまったシ、或は前記異物が大きく、又は硬く、更には
この両者がm合わさったよう表場合には、マグロール上
のトナーはほとんどないに等しい状態となって最悪の場
合には像がのらないなどといつ九事態が発生し、このよ
うな状態になると、最終的に得られるコピー像は薄くな
って見えにくくなるばかシか、文字が欠落したシ、或は
8の字が3になって誤読されたシ、小数点が消えてしま
つfcシして情報伝達上致命的なミスを引起こしてしま
うといった欠点があった。
However, if the trimmer gap is made very small as described above, if foreign matter such as paper, fibers, hair, etc., or blocking toner caused by toner collisions are mixed in the toner, these will be removed. If something gets caught in the trimmer gap and accumulates, the amount of toner on the mag roll corresponding to the portion, that is, the amount of toner that is raised after trimming with the trimmer becomes small.
If this causes the image corresponding to the lever part to become thinner, or if the foreign object is large or hard, or if both are combined, there may be almost no toner on the mag roll. In the worst case scenario, the image will not be printed.In such a situation, the final copy image will become faint and difficult to see. There were shortcomings such as missing ``,'' or ``8'' being misread as a 3, and ``fc'' where the decimal point disappeared, resulting in fatal errors in information transmission.

(発明の目的) 本発明は上記従来の一成分状像方式の現像装置の欠点を
除去するためになされたものであって、前記トリマーギ
ャップ部に引掛って貯まり、コピーディフェクトの原因
となる異物を必要に応じて該個所から取除き、常時安定
したコピー″が採れるようにした複写機等の塑像装置を
提供することを目的とする。
(Object of the Invention) The present invention has been made in order to eliminate the drawbacks of the conventional one-component image type developing device described above. It is an object of the present invention to provide a plastic imaging device such as a copying machine which is capable of always making stable copies by removing the material from the location as necessary.

(発明の構成) 七のために本発明は、−成分り偉力式の現像装置のトリ
マーの手前の適所にノズルパイプを配置し、該パイプを
例えば真空ポンプ+サイクロン等といった真空装置にチ
ューブ等を用いて連結し、該真空装置には外部から信号
を必要に応じて発し、これを作動させることによって、
前記トリマーの手前下部に引掛り付着又は固着すること
によって貯まるうとする異物等を遂次晒引し、核部を常
時清潔に保つことにより、常時安定した良質のコピーを
得られるようにしたものである。
(Structure of the Invention) For the seventh purpose, the present invention arranges a nozzle pipe at an appropriate position in front of the trimmer of a negative-component type developing device, and connects the pipe to a vacuum device such as a vacuum pump + cyclone, etc. By connecting the vacuum device with the vacuum device and emitting a signal from the outside as necessary to operate the vacuum device,
By successively removing foreign matter that may accumulate by getting caught or sticking to the front lower part of the trimmer, and keeping the core part clean at all times, it is possible to always obtain stable, high-quality copies. be.

(実施例) 以下本発明を図面に示す実施例に基づいて詳細に説明す
る。
(Example) The present invention will be described in detail below based on an example shown in the drawings.

第1図は本発明の現像装置の一実施例を示す断面側面図
、第2図は同、ノズルパイプ部の一部拡大分解斜視図で
ある。
FIG. 1 is a cross-sectional side view showing one embodiment of the developing device of the present invention, and FIG. 2 is a partially enlarged exploded perspective view of the nozzle pipe portion of the same.

これらの図において、感光体1の一周辺に配置する現像
装置2はマグロール3と−・ウジング4゜5並びに前記
感光体1側に面したー・ウジング5に取付ケたトリマー
6等によって構成する。モして該トリ?−6の手動の適
所には、その長手方向に沿って下部複数の吸引口1・・
・を備えたノズルパイプ8をブラケット9を用いて前記
ハウジング5に固定することによって配置し、該ノズル
パイプ8はチューブ10等を用いて例えば真空ポンプ+
サイクロン等で構成する真空装置1イに連結し、該真空
装置11は外部の信号によって例えばコピーサイクルス
タート時、或はコピーサイクル中におけるコピーの画質
が悪化して来たようなときに自動的、或ハオペレーター
が押ボタンスイッチ等を押すことによって作動するよう
にしておく。
In these figures, the developing device 2 disposed around one periphery of the photoconductor 1 is composed of a mag roll 3, a housing 4.5, a trimmer 6 attached to the housing 5 facing the photoconductor 1 side, etc. . Is that the same bird? - There are multiple suction ports at the bottom along the longitudinal direction of the 6 manual
A nozzle pipe 8 with a
The vacuum device 11 is connected to a vacuum device 1 which is composed of a cyclone, etc., and the vacuum device 11 is automatically activated by an external signal, for example, at the start of a copy cycle, or when the quality of the copy image deteriorates during the copy cycle. Alternatively, it is activated by the operator pressing a pushbutton switch or the like.

本発明は以上のように構成したものである。次にその動
作につい【説明する。
The present invention is constructed as described above. Next, we will explain its operation.

′fJA像装置2内にはトナー12が投入されている。'fJA Toner 12 is put into the image device 2.

そして該トナー12はマグロール3の回転に伴つ【トリ
マー3部へと搬送され、該トリマー6でトリミングされ
几のち、感光体1の表面に接醜し、該個所に形成された
静電潜像を可視像化する。この過程において前記トナー
12中に紙、繊維、髪の毛等の異物或はプロツキジグト
ナー等が混入していた場合、これらのものは前記トリマ
ー6とマグロール3とで構成するトリマーギャップに引
掛って付着又は固着することによシ貯まってコピーデフ
ェンスを起こすのであるが、その懸念があるとき、或は
コピーの画質上に帯状の抜けやコピー像が薄くなるよう
な現象が見られたときにはオペレーターはコピーサイク
ルのスタート時に前記真空装[11に外部よシ信月を送
ってこれを作動させ、その吸引力によって前記トリマー
ギャップ部に引掛シ付着又は固着し【貯まろうとする異
物やブロッキングトナー等をトリマー6の手前に配置し
たノズルパイプ8の吸引口T・・・から吸引して該個所
から取除いてやれば良い。このようにすれば前記トリマ
ーギャップ部は常時正常な状態となってコピーデフェン
ス等は引起さないことになシ雷時良質のコピーを採るこ
とができることになる。
As the mag roll 3 rotates, the toner 12 is transported to the trimmer 3 section, trimmed by the trimmer 6, and then comes into contact with the surface of the photoreceptor 1, forming an electrostatic latent image at that location. Visualize. During this process, if foreign objects such as paper, fibers, hair, etc. or block jig toner are mixed into the toner 12, these objects will be caught in the trimmer gap made up of the trimmer 6 and the mag roll 3. This builds up due to adhesion or sticking, causing a copy defense, but if there is a concern about this, or if there is a phenomenon in which the image quality of the copy is missing, such as band-like omissions or the copy image is fading, the operator should At the start of the copy cycle, an external signal is sent to the vacuum device [11] to activate it, and its suction force catches foreign matter, blocking toner, etc. It is sufficient to remove it from the location by suctioning it from the suction port T... of the nozzle pipe 8 placed in front of the nozzle pipe 6. In this way, the trimmer gap will always be in a normal state, and copy defense will not occur and high-quality copies can be made in the event of a lightning strike.

又この異物やブロッキングトナーを前記トリマーギヤツ
ブ部から吸引するとき、−緒に吸引してしまう良質のト
ナーはこれをサイクロンにかけて前記異物等と分離した
のちは、これを貯めておくか、或は適当な循環装置等を
使用して再び現像装置2内に戻し、再使用するようにし
てもよい。
Also, when this foreign matter or blocking toner is sucked from the trimmer gear part, the good quality toner that is sucked together should be separated from the foreign matter by passing it through a cyclone, and then stored. It may also be returned to the developing device 2 using a suitable circulation device or the like for reuse.

(発明の効果) 本発明はり上のように構成し、且動作するものであり、
前記トリマー6の手前の通断に吸引口II・・・を穿設
したノズルパイプ8を配置し、該ノズルパイプ8によっ
てトリマーギャップ部に貯まるうとする異物或はブロッ
キングトナー等、従来コピーデフェンスの原因となるも
のを必をに応じて遂次取除いてしまうものであるから前
記トリマーギャップ部は常時正常な状態に保たれ、従っ
て最終的に得られるコピーは常時良質のものとなシ、そ
の分装置自体の信頼性の向上に役立つといった効果を有
する。
(Effect of the invention) The present invention is configured and operates like a beam,
A nozzle pipe 8 with a suction port II is arranged in the passage in front of the trimmer 6, and the nozzle pipe 8 prevents foreign matter or blocking toner from accumulating in the trimmer gap, which is the cause of conventional copy defense. The trimmer gap is always kept in a normal state, and the final copy is always of good quality. This has the effect of helping to improve the reliability of the device itself.

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

第1図は本発明の現像装置の一実施例を示す断面側面図
、第2図は同、ノズルパイプ部の一部拡大分解斜視図で
ある。 図中1・・・・感光体、2・・・・状体装置、3・・・
eマグロール、4,5・−・@ハウリング、6・・・・
トリマー、7・・・・級引孔、8・e@eノズルパイプ
、9・・・・ブラケット、10・・・・チューブ等、1
1・・・・真空装置、12−・・・ トナー。
FIG. 1 is a cross-sectional side view showing one embodiment of the developing device of the present invention, and FIG. 2 is a partially enlarged exploded perspective view of a nozzle pipe portion of the same. In the figure, 1...photoreceptor, 2... shaped body device, 3...
eMagroll, 4,5...@Howling, 6...
Trimmer, 7... Grading hole, 8, e@e nozzle pipe, 9... Bracket, 10... Tube, etc., 1
1... Vacuum device, 12-... Toner.

Claims (1)

【特許請求の範囲】[Claims] 一成分現像剤を用いる現像装置において、当該現像装置
のトリマーの手向の適所に複数個の吸引口を穿設したノ
ズルパイプを配置し、該ノズルパイプには装置外の適所
に配置した真空装置とチューブ等を用いて接続し、該真
空装置を必要に応じて作動させることによって、前記ト
リマーの下端部とマクロールの上部とで構成するトリマ
ーギャップ部に引掛って貯まるうとするトナー中に混入
された紙、繊維、髪の毛等といった異物、或はトナー同
志の衝突により生じるブロッキングトナー等を遂次吸引
して除去できるようにしたことを特徴とする複写機部の
現像装置。
In a developing device using a one-component developer, a nozzle pipe with a plurality of suction ports is disposed at an appropriate position in the direction of the trimmer of the developing device, and a vacuum device is installed at an appropriate location outside the device. By connecting the toner with a tube or the like and activating the vacuum device as necessary, the toner that is caught and accumulated in the trimmer gap formed by the lower end of the trimmer and the upper part of the macrol is mixed into the toner. What is claimed is: 1. A developing device for a copying machine, which is capable of successively suctioning and removing foreign matter such as paper, fibers, hair, etc., or blocking toner caused by collisions between toner particles.
JP8848083A 1983-05-20 1983-05-20 Developing device of copying machine or the like Pending JPS60474A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8848083A JPS60474A (en) 1983-05-20 1983-05-20 Developing device of copying machine or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8848083A JPS60474A (en) 1983-05-20 1983-05-20 Developing device of copying machine or the like

Publications (1)

Publication Number Publication Date
JPS60474A true JPS60474A (en) 1985-01-05

Family

ID=13943951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8848083A Pending JPS60474A (en) 1983-05-20 1983-05-20 Developing device of copying machine or the like

Country Status (1)

Country Link
JP (1) JPS60474A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881338A (en) * 1995-06-29 1999-03-09 Eastman Kodak Company Contamination control device for an electrostatographic development station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5881338A (en) * 1995-06-29 1999-03-09 Eastman Kodak Company Contamination control device for an electrostatographic development station

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