JPH03164766A - Developer stirring device - Google Patents
Developer stirring deviceInfo
- Publication number
- JPH03164766A JPH03164766A JP1305038A JP30503889A JPH03164766A JP H03164766 A JPH03164766 A JP H03164766A JP 1305038 A JP1305038 A JP 1305038A JP 30503889 A JP30503889 A JP 30503889A JP H03164766 A JPH03164766 A JP H03164766A
- Authority
- JP
- Japan
- Prior art keywords
- developer
- plates
- stirring device
- partition
- developer stirring
- 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
- 238000003756 stirring Methods 0.000 title claims abstract description 24
- 238000005192 partition Methods 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 abstract description 7
- 230000002411 adverse Effects 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000013019 agitation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、電子写真方式の２成分現像剤を用いた現像機
の現像剤撹拌装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a developer stirring device for a developing machine using an electrophotographic two-component developer.
現像剤を撹拌する方法は大きく分けると、羽根車やら放
線状のシャフト類を回転させ現像剤の撹拌を行なうもの
と、現像剤を高所から低所に流しこの間に傾斜を付けた
プレート類によって現像剤を撹拌させるものとがある。The methods of stirring the developer can be roughly divided into two methods: one is to rotate an impeller or a linear shaft to agitate the developer, and the other is to stir the developer by flowing the developer from a high place to a low place and using plates with an incline in between. Some types stir the developer.
前者は、シャフト類を駆動させるための機構部が必要と
ない、コスト高となる、尚、形状、回転数等の十分な設
計を行なわないと現像剤の寿命に悪影響を与える。それ
に対し、後者はコストが掛らない、また、現像剤の自重
による自然落下の力による流れで撹拌を行なうため現像
剤に寿命に与える悪影響は少なくてすむ。しかし、基本
的に現像剤を千鳥状に散らすために、流路長を長く設け
ないと十分な現像剤の撹拌能力が保てない欠点があった
。The former does not require a mechanical part to drive the shafts and is expensive, and if the shape, number of rotations, etc. are not adequately designed, the life of the developer will be adversely affected. On the other hand, the latter method does not require much cost, and since the stirring is performed by the flow caused by the force of natural falling due to the developer's own weight, there is less adverse effect on the life of the developer. However, since the developer is basically scattered in a staggered manner, a sufficient agitation ability for the developer cannot be maintained unless the channel length is long.
本発明の目的は、上記した従来技術の欠点を無くシ、狭
い領域で現像剤の寿命に悪影響を与えることなく十分な
現像剤の撹拌を行なうことである〔発明の概要〕
本発明は、板の片面に、一方向に傾斜したプレートを設
け、同様な板を傾斜したプレートを付けた側と向い合わ
せる。現像剤は、この２枚の仕切り板の間を充満するよ
うにして流れるよう板の間隔が設定されている。現像剤
は、２枚の仕切り板の対向する内壁に設けられたプレー
トにより、現像剤の流れに直交する２方向に均等に移動
が行なわれる。また、２枚の仕切り板間においても相対
する流れに仕切りが無いため、現像剤は混合撹拌される
。An object of the present invention is to eliminate the drawbacks of the prior art described above, and to sufficiently agitate the developer in a narrow area without adversely affecting the life of the developer. [Summary of the Invention] A plate inclined in one direction is provided on one side of the plate, and a similar plate is placed opposite the side with the inclined plate. The interval between the plates is set so that the developer flows between the two partition plates to fill the space between the plates. The developer is moved equally in two directions perpendicular to the flow of the developer by plates provided on opposing inner walls of the two partition plates. Further, since there is no partition between the two partition plates in the opposing flows, the developer is mixed and agitated.
以下に１本発明の実施例を第１図〜第３図を用いて説明
する。第１図に示す２枚の仕切板１には一方向に所定の
角度を有し複数の傾斜プレート２が取り付けられている
。２枚の仕切り板は、第１図の様に向い合わせとなるた
め、透過して見ると傾斜プレート２は第２図の様に交差
した格好となる。An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. A plurality of inclined plates 2 are attached to two partition plates 1 shown in FIG. 1 at a predetermined angle in one direction. Since the two partition plates face each other as shown in FIG. 1, the inclined plates 2 appear to cross each other as shown in FIG. 2 when viewed through.
現像剤は、第３図に示す様に、２枚の仕切り板１の間を
充満するようにして流れ、余分な現像剤は仕切り板１の
外側をこぼれ落ちる。２枚の仕切り板１の間を流れる現
像剤は、第２図に示す様に現像剤の流れ方向に直交する
２方向に移動が行なわれる。また、傾斜プレートの交差
した部分は、仕切る物がないため、この部分においては
現像剤が混合される。As shown in FIG. 3, the developer flows between the two partition plates 1 so as to fill the gap, and excess developer spills off the outside of the partition plate 1. The developer flowing between the two partition plates 1 is moved in two directions perpendicular to the flow direction of the developer, as shown in FIG. Furthermore, since there is no partition at the intersection of the inclined plates, the developer is mixed in this area.
具体例では、２枚の仕切り板１の間に傾斜プレート２を
設けているが、第４図の如く、仕切り板１の外側にも傾
斜プレート２を設け、あふれた現像剤をも、横方向へ移
動させる効果をもたせても良い。In the specific example, an inclined plate 2 is provided between two partition plates 1, but as shown in FIG. It may also have the effect of moving to.
仕切り板１の内側にある、傾斜プレート２は必らずしも
同一方向の傾斜でなければいけない訳でなく、第５図の
如く、傾斜の向きを変えたものの組み合わせでも同様の
効果は得られる。The inclined plates 2 on the inside of the partition plate 1 do not necessarily have to be inclined in the same direction; the same effect can be obtained by combining plates with different inclination directions, as shown in Figure 5. .
傾斜プレート２の傾斜角度は必らずしも一定である必要
はなく、第６図の如く、現像剤の流れ方向を現像機の側
壁方向に向けて傾けられた傾斜プレート２においては、
その傾斜を向けられた側壁６近傍では傾斜角度を小さく
、その側壁６から遠ざかる位置では、大きくなる様に設
置されたものであっても同様の効果が得られる。The angle of inclination of the inclined plate 2 does not necessarily have to be constant, and as shown in FIG.
The same effect can be obtained even if the angle of inclination is small near the side wall 6 toward which the inclination is directed, and becomes large at a position away from the side wall 6.
傾斜プレート２の間隔は必らずしも一定である必要はな
く、第７図の如く、現像剤の流れ方向を現像機の側壁方
向に向けて傾けられた傾斜プレート２においては、その
傾斜を向けられた側壁６近傍では間隔を広く、その側壁
６から遠ざかる位置では狭くなる様に設置されたもので
あっても同様の効果が得られる。The interval between the inclined plates 2 does not necessarily have to be constant, and as shown in FIG. The same effect can be obtained even if the spacing is wide in the vicinity of the side wall 6 toward which it is directed, and narrowed in a position away from the side wall 6.
本発明によれば、狭い領域で現像剤を流れに直交する方
向に移動させることが出来るため、撹拌スペースの制約
を受けず、現像剤中のトナーとキャリアの混合比の均一
化を図ることが出来る。また、現像剤の寿命に悪影響を
与えることもなく低コストで現像剤撹拌の機能を果すこ
とが出来る。According to the present invention, since the developer can be moved in a direction perpendicular to the flow in a narrow area, the mixing ratio of toner and carrier in the developer can be made uniform without being limited by stirring space. I can do it. Further, the developer stirring function can be achieved at low cost without adversely affecting the life of the developer.
第１図は本発明となる現像剤撹拌装置の一実施例を示す
分解斜視図で、第２図は本発明となる現像剤撹拌装置に
おける現像剤の流れを示す透視図、第３図は本発明とな
る現像剤撹拌装置の側面図、第４図、第５図、第６図、
第７図は本発明の応用変形例を示すものであり、第４図
および第５図はその斜視図、第６図は第４図の透視側面
図、第７図は第５図の透視側面図である。
図において、１は仕切り板、２は傾斜プレート３は現像
ロール、４は現像剤、５はスクレーパ、６は側壁である
。FIG. 1 is an exploded perspective view showing one embodiment of the developer stirring device according to the present invention, FIG. 2 is a perspective view showing the flow of developer in the developer stirring device according to the present invention, and FIG. Side views of the developer stirring device according to the invention, FIG. 4, FIG. 5, FIG. 6,
7 shows an applied variation of the present invention, FIGS. 4 and 5 are perspective views thereof, FIG. 6 is a perspective side view of FIG. 4, and FIG. 7 is a perspective side view of FIG. 5. It is a diagram. In the figure, 1 is a partition plate, 2 is an inclined plate 3 is a developing roll, 4 is a developer, 5 is a scraper, and 6 is a side wall.
Claims (1)
れを挾んだ一対の仕切り板を所定の間隔を置いて設け、
仕切り板の互いに対向する内壁には現像剤進行方向に対
して傾斜したプレートを複数個設けたことを特徴とする
現像剤撹拌装置。 ２、前記仕切り板の対向する内壁の間には、常に現像剤
を充填して用いる事を特徴とする請求項１記載の現像剤
撹拌装置。 ３、前記一方の仕切り板の内壁に設けられた傾斜プレー
トの傾斜方向は、現像剤の流れ方向に対して一方向に傾
斜しており、他方の仕切り板の内壁に設けられた傾斜プ
レートは、異なる方向に傾斜した事を特徴とする請求項
１記載の現像剤撹拌装置。 ４、前記一つの仕切り板の内壁に設けられた傾斜プレー
トの傾斜方向は、現像剤の流れ方向に対して、左右に傾
斜させた事を特徴とする請求項１記載の現像剤攪拌装置
。 ５、前記２枚の仕切り板の外側に、補助の現像剤流路を
設け、２枚の仕切り板よりあふれた現像剤をバイパスさ
せた事を特徴とする請求項１記載の現像剤撹拌装置。 ６、前記２枚の仕切板の外側に設けた補助の現像剤流路
に、傾斜したプレートを設けた事を特徴とする請求項５
記載の現像剤撹拌装置。 ７、前記２枚の対向する仕切り板を同一形状の部品とし
て形成した事を特徴とする請求項１記載の現像剤攪拌装
置。 ８、現像剤の流れ方向を、現像機の側壁方向に向けて傾
けられた傾斜プレートにおいて、その傾斜を向けられた
側壁近傍では、傾斜角度を小さく、その側壁から遠ざか
る位置では、大きくなる様に設定した事を特徴とする請
求項３記載の現像剤撹拌装置。 ９、現像剤の流れ方向を、現像機の側壁方向に向けて傾
けられた傾斜プレートにおいて、その傾斜を向けられた
側壁近傍では、傾斜プレートの間隔を広く、その側壁か
ら遠ざかる位置では狭くなる様に設定した事を、特徴と
する請求項３記載の現像剤撹拌装置。[Scope of Claims] In a developing machine using a one- or two-component developer, a pair of partition plates are provided at a predetermined interval to sandwich the flow of the developer,
A developer stirring device characterized in that a plurality of plates are provided on mutually opposing inner walls of the partition plate, the plates being inclined with respect to the direction in which the developer travels. 2. The developer stirring device according to claim 1, wherein the developer is always filled between the opposing inner walls of the partition plate. 3. The inclined direction of the inclined plate provided on the inner wall of the one partition plate is inclined in one direction with respect to the flow direction of the developer, and the inclined plate provided on the inner wall of the other partition plate is The developer stirring device according to claim 1, characterized in that the developer stirring device is inclined in different directions. 4. The developer stirring device according to claim 1, wherein the tilt direction of the tilt plate provided on the inner wall of the one partition plate is tilted left and right with respect to the flow direction of the developer. 5. The developer stirring device according to claim 1, wherein an auxiliary developer flow path is provided on the outside of the two partition plates to bypass the developer overflowing from the two partition plates. 6. Claim 5, characterized in that an auxiliary developer flow path provided outside the two partition plates is provided with an inclined plate.
The developer stirring device described above. 7. The developer stirring device according to claim 1, wherein the two opposing partition plates are formed as parts having the same shape. 8. In an inclined plate that is inclined toward the side wall of the developing machine, the direction of flow of the developer is made so that the angle of inclination is small near the side wall toward which the inclination is directed, and becomes large at a position away from the side wall. 4. The developer stirring device according to claim 3, wherein: 9. In the inclined plates that are inclined so that the developer flow direction is directed toward the side wall of the developing machine, the interval between the inclined plates is widened near the side wall to which the slope is directed, and becomes narrower at a position away from the side wall. 4. The developer stirring device according to claim 3, wherein the developer stirring device is set to .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1305038A JPH03164766A (en) | 1989-11-24 | 1989-11-24 | Developer stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1305038A JPH03164766A (en) | 1989-11-24 | 1989-11-24 | Developer stirring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03164766A true JPH03164766A (en) | 1991-07-16 |
Family
ID=17940356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1305038A Pending JPH03164766A (en) | 1989-11-24 | 1989-11-24 | Developer stirring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03164766A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0634706A1 (en) * | 1993-07-12 | 1995-01-18 | Agfa-Gevaert N.V. | An electrostatographic apparatus |
-
1989
- 1989-11-24 JP JP1305038A patent/JPH03164766A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0634706A1 (en) * | 1993-07-12 | 1995-01-18 | Agfa-Gevaert N.V. | An electrostatographic apparatus |
| BE1007265A4 (en) * | 1993-07-12 | 1995-05-02 | Agfa Gevaert Nv | A electrostatographic developing device. |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5842090A (en) | Developing device having a member for restricting transport of developer | |
| JPH0695247B2 (en) | Electrostatic latent image developing device | |
| JPS58163968A (en) | Developing device | |
| US5016053A (en) | Stirrer roller of developing device in electrophotographic copying machine | |
| JPH03164766A (en) | Developer stirring device | |
| JPH07191536A (en) | Developer agitation device | |
| JPS62288871A (en) | Developing device | |
| JPH04175782A (en) | Developing device | |
| JPH0254289A (en) | Image forming device | |
| JP3527024B2 (en) | Developing device | |
| JPH086395A (en) | Developer stirring/conveying device | |
| JPH02309374A (en) | Developing device | |
| JPH06167876A (en) | Developing device | |
| JPH086396A (en) | Developer stirring/conveying device | |
| JPS6315581B2 (en) | ||
| JPS63129368A (en) | Developing device | |
| JPH0815968A (en) | Developer stirring mechanism and developing device incorporating the mechanism | |
| JPS62293266A (en) | Developing device | |
| JPS57141665A (en) | Developing device for electrostatic latent image | |
| JPH086394A (en) | Developer stirring/conveying device | |
| JPH0426872A (en) | Developing device | |
| JPS6371872A (en) | Developing device | |
| JPH01145676A (en) | Developing device | |
| JPH06348124A (en) | Developing device | |
| KR100193867B1 (en) | Toner Stirrer for Bidirectional Stirring |