JPS60470A - Developing device of copying machine or the like - Google Patents
Developing device of copying machine or the likeInfo
- Publication number
- JPS60470A JPS60470A JP58088475A JP8847583A JPS60470A JP S60470 A JPS60470 A JP S60470A JP 58088475 A JP58088475 A JP 58088475A JP 8847583 A JP8847583 A JP 8847583A JP S60470 A JPS60470 A JP S60470A
- Authority
- JP
- Japan
- Prior art keywords
- trimmer
- toner
- gap
- developing device
- plate
- 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
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
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
- G03G15/0887—Arrangements 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)
- Dry Development In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】 (産業上の利用分野) 本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 present 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現像剤を付着させて
可視像をつくるにあたり、トナーとキャリアを用いる二
成分現像方式に対し、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現像方式は、装置
の小屋化が可能であると共に、現像濃度を調節するだめ
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、又現像剤の劣化という間ν列は生じな
いので常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 a two-component development method that uses toner and carrier, when a developer is attached to an electrostatic latent image formed on the surface of a photoconductor to create a visible image, the toner and carrier each have their own functions. The one-component development method, which combines the two toners into one toner, allows the equipment to be built into a shed, and there is no need to adjust the toner density to adjust the development density.
This method has the advantage that the device can be manufactured at a low cost, and that stable copy image quality can always be obtained since the ν row does not occur while the developer deteriorates.
ところで、この−成分現像方式は、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界面にトナー
を磁気的に接触移動させる以前に、々グロール上に磁気
的にピックアップしたトナーの飢を複写に最適な状態に
トリミング(規制)する必費があり、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(トナ一層厚
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4t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、即ちトリマー通道後のマグロール上のトナ
ーの層厚は一般に0.7〜0.5關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
てつくられるギヤツブ即ちトリマーギャップは非常に小
さいものにする心安があった。By the way, this -component development method uses a magnetic development method, so in order to optimize the image quality of the final copy, it is necessary to magnetically move the toner from the surface of the mag roll to the interface of the photoreceptor. Previously, it was necessary to trim (regulate) the toner that had been magnetically picked up on the mag roll to the optimum state for copying, and normally this trimming was done using a trimmer (a toner layer thickness regulating plate) placed around one side of the mag roll. ) is arranged, and the 4 tons of magnetic toner picked up by the trimmer collides with the rotating mag roll so that toner other than the specified amount does not pass through.
The specified value, that is, the layer thickness of the toner on the mag roll after passing through the trimmer, is generally a relatively small value of around 0.7 to 0.5 degrees, so the gear or trimmer gap created by the mag roll and trimmer is very large. I felt safe going for something small.
しかしながら、このトリマーギャップは上述のように非
常に小さいものであるがため、この部分に、トナー中に
混入した紙、繊維、又は髪の毛、或はトナー同志の衝突
によって生じるブロッキングトナー等の異物が引掛って
貯まったりすると、当該異物によって前記マグロール上
のトリマーによるトリミング後のトナーの址が少なくな
り、又これらの異物が太きく、又硬く、史には両者が組
合わさったような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、その部分に相当するイ
メージ像は薄くなるが最悪の場合には像がのらないよう
な事態が発生し、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はかりか、時
には文字が欠落したり、或は誤読されたり、小数点が消
えてしまったシして情報伝達上致命的なミスを引起こず
といった欠点があった。However, since this trimmer gap is very small as mentioned above, foreign matter such as paper, fibers, or hair mixed into the toner, or blocking toner caused by collisions between toners may get caught in this part. If the foreign matter accumulates, the amount of toner left after trimming by the trimmer on the mag roll will decrease, and if these foreign matter are thick and hard, and in the past there has been a combination of both, the toner on the mag roll will be removed. There will be almost no toner on the top, and the image corresponding to that area will become thinner, but in the worst case, there will be no image. The resulting copy image may be faded and difficult to see, or sometimes characters may be missing or misread, or the decimal point may disappear, resulting in fatal errors in information transmission. there were.
(発明の目的)
本発明は上記従来の一成現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、コピ一作業中何ら
かの原因でブロッキングトナー又は異物等がトリマーの
手前下部に貯ってコピーデフエクトが生じたとき、これ
をただちに取除いて正常なコピーが採れるようにした複
写機等の現像装置を提供することを目的としたものであ
る。(Purpose of the Invention) The present invention has been made to eliminate the drawbacks of the above-mentioned conventional one-form development type developing device. It is an object of the present invention to provide a developing device for a copying machine or the like which can immediately remove copy defects when they are accumulated and produce normal copies.
(発、明の構成)
そのために本発明は前記トリマーを現像装置のハウジン
グに取付けるにあたり、或一定のギャップを設け、該ギ
ャップには常時は逆り字形状の板体を挿込んでおき、前
記トリマーの手前下部にトナーブロッキングが生じたり
、或は異物等が貯まってコピーテフエクトが生じた際に
は前記板体をギャップから引抜き、かわυに該キャップ
には磁性体等を取付けた差込み板を差し込むことによっ
て前記トナーブロッキングを破砕し、又異物を取除くよ
うにしたことを特徴としたものである。(Structures of the Invention and the Invention) For this purpose, the present invention provides a certain gap when attaching the trimmer to the housing of the developing device, and an inverted-shaped plate is always inserted into the gap. When toner blocking occurs at the front lower part of the trimmer, or when a copy effect occurs due to accumulation of foreign matter, pull out the plate from the gap, and replace the cap with an insert plate with a magnetic material attached. This is characterized in that by inserting the toner blocking material, the toner blocking material is crushed and foreign matter is removed.
(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、トリマ一部の分解斜視図、第3図は同、
差込み板の斜視図である。FIG. 1 is a cross-sectional side view showing one embodiment of the developing device of the present invention, FIG. 2 is an exploded perspective view of a part of the trimmer, and FIG. 3 is the same,
It is a perspective view of an insertion board.
これらの図において、感光体】の−周辺に配置する現像
装R2rま、マグロール3とハウジング4.5及びハウ
ジング5に取付けたトリマー6等によって構成する。そ
し−〇、前記ハウジング5にトリマー6を螺子7.8を
用いて固定するにめたり、ハウジング5とトリマー6と
の両端部には所定の厚味をもったスペーサー9.10を
介在させて同定することによシ、ハウジング5とトリマ
ー6との間にはイメージ中相当の長さのギャップを設け
る。In these figures, a developing device R2r disposed around the photoreceptor is composed of a mag roll 3, a housing 4.5, a trimmer 6 attached to the housing 5, and the like. Then, the trimmer 6 is fixed to the housing 5 using screws 7.8, and spacers 9.10 having a predetermined thickness are interposed at both ends of the housing 5 and the trimmer 6. By identifying, a gap of a considerable length is provided between the housing 5 and the trimmer 6 in the image.
そして該ギャップ中には常時は逆り字形状の板体11を
挿込み、該板体11は蝶部子12を用いてハウジング5
に固定しておくと共に、該板体11とは別個に同形状で
丈が幾分長く下部の適所には磁性体を取付けた挿込み板
13を用意しておく。A plate member 11, which is normally inverted, is inserted into the gap, and the plate member 11 is attached to the housing 5 using a butterfly member 12.
At the same time, an insertion plate 13 is prepared separately from the plate 11, which has the same shape, is slightly longer, and has a magnetic material attached at an appropriate position at the bottom.
本発明は以上のように構成したものである。次にその動
作について説明する。The present invention is constructed as described above. Next, its operation will be explained.
前記現像装置2内には一成分トナー14が投入されてい
る。そして該トナー14はマグロール3の回転によって
搬送され、トリマー6部へと同かい、ここでトリミング
されたのち、感光体1の表面に接触して該個所に形成し
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14中に紙、繊維、或は髪の毛、又はブロッキング
トナー等が混入し1いて、これらのものがトリマーギャ
ップ部に引掛かって該個所に貯まったり、或はトリマー
の手前下部にトナーブロッキングが発生してコピーデフ
エクトが生じた際にはオペレーターは前記*#子12を
外して板体11をハウジング5とトリマー6との間から
引抜き、かわりに挿込み板13を該ギャップ内に挿入す
ることによって該個所から異物を取除いたり、或はトナ
ーブロッキングを破砕し、しかるのちは再び該ギャップ
内に板体11を取付けてコピ一作業をふたたび始めれば
良い。A monocomponent toner 14 is charged into the developing device 2 . Then, the toner 14 is conveyed by the rotation of the mag roll 3, transferred to the trimmer 6, and trimmed there, and then comes into contact with the surface of the photoreceptor 1 to convert the electrostatic latent image formed at the location into a visible image. become During this process, paper, fibers, hair, blocking toner, etc. get mixed into the toner 14, and these things get caught in the trimmer gap and accumulate there, or get stuck in the front lower part of the trimmer. When copy defect occurs due to toner blocking, the operator removes the *# element 12, pulls out the plate 11 from between the housing 5 and the trimmer 6, and inserts the plate 13 into the gap instead. By inserting the plate into the gap, the foreign matter can be removed from the location or the toner blocking can be crushed, and then the plate 11 can be reinstalled into the gap and the copying operation can be started again.
(発明の効果)
本発明は以上のように構成し且つ使用するものであり、
ハウジング5にトリマー6を数句けるにめたシスペーサ
−9,10(z用いて両者間にギャップを設け、該ギャ
ップと挿込み板13とを利用してトリマーギヤング部に
貯まる異物や戒はトリマ−60F端下部に発生するトナ
ーブロッキングを取除くものであるから当該取除き作業
が容易且つ適確迅速に行なえ、その分オペレーターの負
担を@滅することに役立つといつだ効果を有する。(Effect of the invention) The present invention is constructed and used as described above,
The trimmer 6 is placed in the housing 5, and a gap is created between the two using spacers 9 and 10, and the gap and the insertion plate 13 are used to remove foreign matter and dirt that accumulate in the trimmer young part. Since the toner blocking that occurs at the lower end of the trimmer 60F is removed, the removal work can be performed easily, accurately and quickly, and it is always effective if it helps to reduce the burden on the operator.
同、本発明は上記実施例に限定されなけれはならない理
由はなく、板体11及び挿込み板13の形状は逆り字形
状外の形状であっても良いことは勿論のこと、挿込み板
13自体は、磁性体を取付ける外に全体が磁性を帯びて
いるものを使用しても良く、更にはまったく磁性体等を
用いない鉄のようなものを使用しても良い。但し、この
場合にはコストダウンは期待できるが、磁化されたトナ
ーを凪着する点において前記磁性体を用いたものよυ若
干作業性は劣る。Similarly, there is no reason why the present invention must be limited to the above-mentioned embodiments, and it goes without saying that the shape of the plate body 11 and the insertion plate 13 may be other than the inverted shape. 13 itself may be entirely magnetic in addition to attaching a magnetic material, or may be made of iron or the like that does not contain any magnetic material at all. However, although cost reduction can be expected in this case, the workability is slightly inferior to the method using the magnetic material in terms of calming the magnetized toner.
゛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1−を同、トリマ一部の分解斜視図、第3図
は同、挿込み板の斜視図である。
図中、1・・・・感光体、2・・・・現像装置、3・−
・・マグロール、4.5・拳T尋ハウシング、6・・・
・トリマー、7.8・・・・迷子、9.10・・・・ス
ペーサー、11・・・・板体、12・・・・蝶螺子、1
3・・・・挿込み板、。
特許出願人 富士セロツクス株式会社
代理人 (13981)川越 進
(ほか1名)Fig. 1 is a cross-sectional side view showing one embodiment of the developing device of the present invention, Fig. 2 is an exploded perspective view of a part of the trimmer, and Fig. 3 is a perspective view of the insertion plate. . In the figure, 1...photoreceptor, 2...developing device, 3...-
・・Maglor, 4.5・Fist T-hiro Housing, 6...
・Trimmer, 7.8... Lost item, 9.10... Spacer, 11... Board, 12... Butterfly screw, 1
3...Insertion board. Patent applicant: Fuji Serotox Co., Ltd. Agent (13981) Susumu Kawagoe (and 1 other person)
Claims (1)
トリマーの手前に、当該トリマーとほぼ同−中のギャッ
プを設け、該ギャップには適当形状の薄板を挿込めるよ
うにして、トリマーギャップ部に貯まる異物或はトリマ
ーの手前下部に発生するトナープロツキフグを取除ける
ようにしたことを特徴とする複写機等の現像装置。In a developing device that uses a one-component developer, a gap is provided in front of the trimmer of the developing device, approximately the same size as the trimmer, and a thin plate of an appropriate shape can be inserted into the gap. A developing device for a copying machine, etc., characterized in that it is capable of removing accumulated foreign matter or toner blockage generated at the lower front side of a trimmer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58088475A JPS60470A (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 |
---|---|---|---|
JP58088475A JPS60470A (en) | 1983-05-20 | 1983-05-20 | Developing device of copying machine or the like |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60470A true JPS60470A (en) | 1985-01-05 |
Family
ID=13943798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58088475A Pending JPS60470A (en) | 1983-05-20 | 1983-05-20 | Developing device of copying machine or the like |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60470A (en) |
-
1983
- 1983-05-20 JP JP58088475A patent/JPS60470A/en active Pending
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