JP2527953Y2 - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JP2527953Y2 JP2527953Y2 JP1990003086U JP308690U JP2527953Y2 JP 2527953 Y2 JP2527953 Y2 JP 2527953Y2 JP 1990003086 U JP1990003086 U JP 1990003086U JP 308690 U JP308690 U JP 308690U JP 2527953 Y2 JP2527953 Y2 JP 2527953Y2
- Authority
- JP
- Japan
- Prior art keywords
- developing
- developer
- chamber
- developing device
- supply port
- 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 - Lifetime
Links
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- Dry Development In Electrophotography (AREA)
Description
【考案の詳細な説明】 産業上の利用分野 本考案は、現像室に供給する乾式の二成分現像剤を収
容した現像剤貯蔵室を備えた現像装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a developing device having a developer storage chamber containing a dry two-component developer supplied to a developing chamber.
従来技術 上記形式の現像装置は、周知であり、複写機、プリン
タ、ファクシミリ等の画像形成装置に用いられている。
この種の現像装置として、特公昭63−9237号公報には現
像剤貯蔵部を現像器内部に一体に有し、その貯蔵部内に
現像剤をシール部材を用いて密開し、このシール部材を
引き出すことにより現像剤を供給して現像可能とする現
像器が開示されている。2. Description of the Related Art A developing device of the type described above is well known, and is used in an image forming apparatus such as a copying machine, a printer, and a facsimile.
As a developing device of this type, Japanese Patent Publication No. 63-9237 discloses that a developer storage unit is integrally provided inside a developing device, and the developer is densely opened in the storage unit using a seal member. There is disclosed a developing device which supplies a developer by being pulled out to enable development.
この種の現像器は、現像剤貯蔵部が現像器本体に一体
化されて設けられているので、トナーカートリッジの着
脱が不要でトナー飛散がなくなる等の利点がある。Since this type of developing device has the developer storage unit integrated with the developing device main body, there is an advantage that a toner cartridge is not required to be attached and detached, and toner is not scattered.
ところが、現像剤貯蔵部が現像器の幅方向全面に設け
ており、供給口もほぼ全幅に渡って開けられている。こ
のため、供給口の開口面積も大きくなり、シール部材も
その開口に応じた大きさを必要とし、シール部材の貼り
付け等の工数の多くコストが嵩むという問題があった。However, the developer storage section is provided on the entire surface of the developing device in the width direction, and the supply port is also opened almost over the entire width. For this reason, the area of the opening of the supply port becomes large, and the seal member also needs to be sized according to the opening, resulting in a problem that the number of steps for attaching the seal member and the like increase the cost.
考案が解決しようとする課題 本考案は、上述した従来の問題を解消し、現像剤貯蔵
部における供給口の開口面積を小さくすることのできる
現像装置を提供することを課題としている。Problem to be Solved by the Invention It is an object of the present invention to solve the above-mentioned conventional problems and to provide a developing device capable of reducing an opening area of a supply port in a developer storage section.
課題を解決するための手段 上記課題を解決する本考案の構成は次の如くである。Means for Solving the Problems The configuration of the present invention for solving the above problems is as follows.
乾式の二成分現像剤が収容され、現像室に通じる供給
口が形成された現像剤貯蔵室を有し、該現像剤貯蔵室は
現像室の一側面に配置され、前記現像室に現像剤を供給
後に使用を開始する現像装置において、前記現像剤貯蔵
室と前記現像室の間に配置され、前記供給口が閉じる位
置から供給口が前記現像室に連通する位置へ押し込み操
作により移動されるシャッタを設け、連通する位置に移
動されたシャッタが装置内に残されることを特徴とする
現像装置。A dry two-component developer is accommodated, and has a developer storage chamber in which a supply port communicating with the developing chamber is formed. The developer storing chamber is disposed on one side of the developing chamber, and the developer is supplied to the developing chamber. A shutter that is disposed between the developer storage chamber and the developing chamber and that is moved by a pushing operation from a position where the supply port is closed to a position where the supply port communicates with the development chamber in a developing device that starts using after the supply. And a shutter moved to a communicating position is left in the apparatus.
作用 上記構成によれば、現像剤貯蔵室とその現像剤供給口
を現像室の一側面側に設けているので、供給口の開口面
積を小さくすることができる。Operation According to the above configuration, since the developer storage chamber and the developer supply port are provided on one side of the development chamber, the opening area of the supply port can be reduced.
実施例 以下、本考案の実施例を添付図面に従って説明する。Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
第１図は、本考案が適用可能な複写機の一実施例を示
す全体概略図ある。FIG. 1 is an overall schematic view showing an embodiment of a copying machine to which the present invention can be applied.
第１図において、感光体ドラム１が図示していない駆
動装置によって矢印Ａ方向へ回転すると、感光体表面が
帯電器２によって帯電される。その帯電部分には、コン
タクトガラス３上に載置された原稿の光像が光学系４を
介して画像露光されることにより、静電潜像が形成され
る。かく形成された潜像は、現像装置５により可視像化
されてトナー像と成って転写部に到来する。このトナー
像と同期して給紙部８から転写紙が転写部に搬送され、
転写チャージャ６の作用下でトナー像が転写紙に転写さ
れ、そして分離チャージャ７の作用で感光体ドラム１か
ら分離される。In FIG. 1, when the photosensitive drum 1 is rotated in the direction of arrow A by a driving device (not shown), the surface of the photosensitive drum is charged by the charger 2. An optical latent image is formed on the charged portion by exposing a light image of a document placed on the contact glass 3 via the optical system 4 to image exposure. The latent image thus formed is visualized by the developing device 5 to form a toner image and arrives at the transfer section. The transfer paper is conveyed from the paper supply unit 8 to the transfer unit in synchronization with the toner image, and
The toner image is transferred to the transfer paper under the action of the transfer charger 6 and is separated from the photosensitive drum 1 by the action of the separation charger 7.
トナー像が転写され感光体ドラム１から分離された転
写紙は搬送ベルト９を介して定着装置10に送られ、そこ
でトナー像が永久画像として定着される。そして、定着
後の転写紙は機外へ排出若しくは両面トレイ12に搬送さ
れる。他方、転写分離後の感光体ドラム１は、クリーニ
ング装置11によって清掃され、次の複写に備えられる。The transfer paper on which the toner image has been transferred and separated from the photosensitive drum 1 is sent to a fixing device 10 via a conveyor belt 9, where the toner image is fixed as a permanent image. Then, the transfer paper after fixing is discharged out of the apparatus or conveyed to the double-sided tray 12. On the other hand, the photosensitive drum 1 after the transfer and separation is cleaned by the cleaning device 11 to be ready for the next copy.
現像装置５は、第２図に示すように、現像ローラ13、
パドル14、現像ドクタ15、セパレータ16及び搬送スクリ
ュー17を備えた現像室18と、この現像室18に補給するト
ナーを貯えたトナーホッパ20とを有し、トナーホッパ20
のトナーはトナー補給ローラ19によって補給される。な
お、トナーホッパー20内にはトナーを攪拌するアジテー
タ21が設けられている。The developing device 5 includes, as shown in FIG.
A developing chamber 18 having a paddle 14, a developing doctor 15, a separator 16, and a conveying screw 17; and a toner hopper 20 storing toner to be supplied to the developing chamber 18.
Is supplied by the toner supply roller 19. Note that an agitator 21 for stirring the toner is provided in the toner hopper 20.
この現像装置５は、未使用の場合、使用する直前に、
トナーとキャリアが所定の割合に混合された現像剤を供
給する必要がある。このため、現像装置５に使用直前に
供給する現像剤を収容した現像剤貯蔵室22を現像装置５
と一体的に設けている。この現像剤貯蔵室22は、従来の
場合現像室18の上部に配置したため、供給口の開口面積
が大きくなり、種々の問題が生ずることは先に説明し
た。When the developing device 5 is not used, immediately before use,
It is necessary to supply a developer in which the toner and the carrier are mixed at a predetermined ratio. Therefore, the developer storage chamber 22 containing the developer to be supplied to the developing device 5 immediately before use is stored in the developing device 5.
It is provided integrally. As described above, since the developer storage chamber 22 is disposed above the developing chamber 18 in the conventional case, the opening area of the supply port becomes large, and various problems occur.
そこで、本考案では現像剤貯蔵室22を第３図に示すよ
うに、現像室18の一側面側に設けている。そして、現像
剤貯蔵室22の供給口23も現像室18の一側面側に形成して
いる。この場合、現像剤貯蔵室22はその供給口23が移動
可能なシール部材としてのシャッタ24によって閉じら
れ、現像剤貯蔵室22内に現像剤が封入されている。ま
た、現像剤貯蔵室22は矢印Ｂで示す現像装置５の複写機
本体への装着方向に対し、上流側すなわち手前側に設け
ており、現像剤貯蔵室22の上部には現像装置５の脱着操
作用の取手部25を設けている。なお、現像剤貯蔵室22の
供給口23は第４図に示すように、所定量の現像剤を現像
室18に供給した場合の喫水ラインＣよりも上方によるよ
うに設定されている。Thus, in the present invention, the developer storage chamber 22 is provided on one side of the developing chamber 18 as shown in FIG. The supply port 23 of the developer storage chamber 22 is also formed on one side of the developing chamber 18. In this case, the developer storage chamber 22 is closed by a shutter 24 as a seal member whose supply port 23 is movable, and the developer is sealed in the developer storage chamber 22. Further, the developer storage chamber 22 is provided on the upstream side, that is, on the front side with respect to the mounting direction of the developing device 5 to the copying machine main body as indicated by the arrow B. An operation handle 25 is provided. In addition, as shown in FIG. 4, the supply port 23 of the developer storage chamber 22 is set to be higher than the draft line C when a predetermined amount of the developer is supplied to the development chamber 18.
かく構成された現像装置５は、使用する直前にシャッ
タ24を押し下げ、このとき第３図にに示すように、シャ
ッタ24の開口24aが現像剤貯蔵室22の供給口23と現像室1
8の開口18aに合致して現像剤貯蔵室22内に収容されてい
た現像剤が現像室18内へ自由落下する。The developing device 5 thus configured pushes down the shutter 24 immediately before use, and at this time, as shown in FIG. 3, the opening 24a of the shutter 24 is connected to the supply port 23 of the developer storage chamber 22 and the developing chamber 1
The developer accommodated in the developer storage chamber 22 coincides with the opening 18a of 8, and falls freely into the developer chamber 18.
かくして、現像室18に現像剤が供給された現像装置５
が複写機本体に装着されると、駆動ギヤ（図示せず）を
介して現像部を駆動させることにより、一様に拡散させ
ることができる。なお、新品の現像装置５を複写機本体
に装着後にシャッタ24を押し下げ、現像部を駆動させる
ようにしてもよい。Thus, the developing device 5 in which the developer is supplied to the developing chamber 18
When the developing unit is mounted on the copying machine main body, the developing unit is driven via a driving gear (not shown), whereby the toner can be uniformly diffused. After the new developing device 5 is mounted on the copying machine main body, the shutter 24 may be pressed down to drive the developing unit.
ここで、現像部を駆動させた場合の現像剤の流れを説
明すると、現像剤はパドル14によって汲み上げられ、現
像ローラ13上を現像ドクタ15まで搬送され、現像ドクタ
15によって一定層厚に規制され、そのまま感光体ドラム
１側に搬送されたものと、規制によってあふれ現像ドク
タ15に沿ってセパレータ16側へ送られるものとに分かれ
る。セパレータ16側へ送られた現像剤は、セパレータ16
上に設けたフィン16aに沿ってパドル14側へ落下する。
また、現像室18内の横方向の現像剤の流れは、セパレー
タ16へ送られたものはフィン16aに沿って第３図の右側
から左側へ移動し、左端部近くに設けたセパレータ16上
の取込口16bへ流れ込み搬送スクリュー17によって左側
から右側へ搬送され、右端近傍でパドル14側へ落下す
る。Here, the flow of the developer when the developing unit is driven will be described. The developer is pumped up by the paddle 14 and is transported on the developing roller 13 to the developing doctor 15, where the developing doctor 15
The toner is conveyed to the photoconductor drum 1 side as it is regulated by the fixed layer thickness 15 and is separated into the one sent to the separator 16 side along the developing doctor 15 overflowed by the regulation. The developer sent to the separator 16 side
It falls to the paddle 14 side along the fin 16a provided above.
The flow of the developer in the lateral direction in the developing chamber 18 is such that the one sent to the separator 16 moves from the right side to the left side in FIG. It flows into the intake 16b, is conveyed from left to right by the conveying screw 17, and drops to the paddle 14 near the right end.
このような流れによって、現像剤貯蔵室22から現像室
18に供給された現像剤が現像室18内で一様に拡散され
る。With such a flow, the developer storage chamber 22 is moved from the developing chamber
The developer supplied to 18 is uniformly diffused in the developing chamber 18.
上記の如く、本考案は現像剤貯蔵室22を現像室18の一
側面側に設け、そして現像剤貯蔵室22の供給口23も現像
室18の一側面側に形成しているので、シール部材である
シャッタ24を小さくすることができ、シール性も向上す
る。また、上記実施例では現像剤貯蔵室22を手前側に設
けることで、現像剤貯蔵室22を手前側に延長させ、現像
剤貯蔵室22の容量を確保することもできる。さらに、従
来の貯蔵部一体型現像装置ではシール部材を引っ張り出
す操作時に、シール部材に付着している現像剤で手や衣
類を汚す恐れがあるが、上記実施例ではシャッタ24は現
像装置から引っ張り出さない構成なので、このような問
題も発生しない。As described above, in the present invention, the developer storage chamber 22 is provided on one side of the developing chamber 18, and the supply port 23 of the developer storage chamber 22 is also formed on one side of the developing chamber 18, so that the sealing member is provided. Can be made smaller, and the sealing performance is also improved. Further, in the above embodiment, the developer storage chamber 22 is provided on the near side, so that the developer storage chamber 22 can be extended to the front side, and the capacity of the developer storage chamber 22 can be secured. Further, in the conventional storage-unit-integrated developing device, when the seal member is pulled out, there is a possibility that the developer or the clothes adhered to the seal member may stain the hands and clothes. In the above embodiment, the shutter 24 is pulled from the developing device. Such a problem does not occur because the configuration is not provided.
効果 新品の現像装置においてシャッタを押し込むという簡
単な操作で二成分現像剤を、現像ローラ等を備えた現像
室へ供給することができる。しかも、連通する位置に押
し込まれたシャッタはその位置に留まり、装置から引っ
張り出すことをしないため、シャッタに付着した現像剤
で手や衣服を汚すことが確実に防止することができる。Effect The two-component developer can be supplied to the developing chamber provided with the developing roller and the like by a simple operation of pushing the shutter in a new developing device. In addition, the shutter pushed into the communicating position stays at that position and does not pull out from the apparatus, so that it is possible to reliably prevent the developer or the like from soiling the hands and clothes with the developer attached to the shutter.
第１図は、本考案が適用可能な複写機の一実施例を示す
全体概略図、第２図は本考案の一実施例を示す拡大図、
第３図はシャッタを開いた状態を示すその縦断面図、第
４図は供給口と所定量の現像剤を供給した場合の喫水ラ
インの位置関係を示す断面図である。 ５……現像装置 18……現像室 22……現像剤貯蔵室 23……供給口 24……シャッタFIG. 1 is an overall schematic view showing one embodiment of a copying machine to which the present invention can be applied, FIG. 2 is an enlarged view showing one embodiment of the present invention,
FIG. 3 is a longitudinal sectional view showing a state in which a shutter is opened, and FIG. 4 is a sectional view showing a positional relationship between a supply port and a draft line when a predetermined amount of developer is supplied. 5 Developing device 18 Developing room 22 Developing agent storage room 23 Supply port 24 Shutter
Claims (1)
通じる供給口が形成された現像剤貯蔵室を有し、該現像
剤貯蔵室は現像室の一側面に配置され、前記現像室に現
像剤を供給後に使用を開始する現像装置において、 前記現像剤貯蔵室と前記現像室の間に配置され、前記供
給口が閉じる位置から供給口が前記現像室に連通する位
置へ押し込み操作により移動されるシャッタを設け、連
通する位置に移動されたシャッタが装置内に残されるこ
とを特徴とする現像装置。1. A developer storage chamber containing a dry two-component developer and having a supply port communicating with a developing chamber, wherein the developer storage chamber is disposed on one side of the developing chamber. In the developing device, which starts using after supplying the developer to the chamber, the developing device is disposed between the developer storage chamber and the developing chamber, and is pushed from a position where the supply port is closed to a position where the supply port communicates with the developing chamber. And a shutter moved to a communicating position is left in the apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990003086U JP2527953Y2 (en) | 1990-01-19 | 1990-01-19 | Developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990003086U JP2527953Y2 (en) | 1990-01-19 | 1990-01-19 | Developing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0394560U JPH0394560U (en) | 1991-09-26 |
| JP2527953Y2 true JP2527953Y2 (en) | 1997-03-05 |
Family
ID=31506926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990003086U Expired - Lifetime JP2527953Y2 (en) | 1990-01-19 | 1990-01-19 | Developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2527953Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4752705B2 (en) * | 2006-09-28 | 2011-08-17 | オムロン株式会社 | connector |
| JP4579322B2 (en) * | 2008-09-18 | 2010-11-10 | ヒロセ電機株式会社 | Electrical connector for flat cable |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5448254A (en) * | 1977-09-22 | 1979-04-16 | Canon Inc | Method and device for replenishing of developer |
| JPS55133447U (en) * | 1979-03-15 | 1980-09-22 | ||
| JPS6266283A (en) * | 1985-09-19 | 1987-03-25 | Canon Inc | Developing agent density control method for developing device |
| JPS62102255A (en) * | 1985-10-30 | 1987-05-12 | Ricoh Co Ltd | Method for exchanging color of developer in developing device |
-
1990
- 1990-01-19 JP JP1990003086U patent/JP2527953Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0394560U (en) | 1991-09-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |