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JP3543257B2 - Developer supply device - Google Patents
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JP3543257B2 - Developer supply device - Google Patents

Developer supply device Download PDF

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Publication number
JP3543257B2
JP3543257B2 JP36632897A JP36632897A JP3543257B2 JP 3543257 B2 JP3543257 B2 JP 3543257B2 JP 36632897 A JP36632897 A JP 36632897A JP 36632897 A JP36632897 A JP 36632897A JP 3543257 B2 JP3543257 B2 JP 3543257B2
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JP
Japan
Prior art keywords
developer
toner
storage unit
gear
stirring member
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 - Fee Related
Application number
JP36632897A
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Japanese (ja)
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JPH11184232A (en
Inventor
真 宇井
滋 岡崎
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP36632897A priority Critical patent/JP3543257B2/en
Priority to EP98124332A priority patent/EP0926572B1/en
Priority to DE69823320T priority patent/DE69823320D1/en
Priority to US09/217,705 priority patent/US5966574A/en
Publication of JPH11184232A publication Critical patent/JPH11184232A/en
Application granted granted Critical
Publication of JP3543257B2 publication Critical patent/JP3543257B2/en
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Description

【0001】
【発明の属する技術分野】
この発明は電子写真方式の画像形成装置などの現像器に使用される現像剤補給装置に関するものである。
【0002】
【従来の技術】
従来、現像剤貯蔵部へ現像剤を補給する場合、その補給口へ現像剤を収容した現像剤収納容器(トナーボトル)の排出口を合わせて一気に投入していたが、現像剤が煙のように飛散する現象(発煙現象)が生じ、現像剤貯蔵部の周辺を汚す虞があった。
【0003】
そこで、近年、現像剤貯蔵部の上面に、周方向に回転できるようにトナーボトルを設置し、該トナーボトルを周方向に回転させることにより周面に設けたスパイラル状の溝(リブ)で現像剤を一方寄りに移動させ、一側に設けた排出口から漸次、現像剤補給口に補給できるようにした現像剤補給装置が用いられるようになった。
【0004】
前記現像剤貯蔵部内には、補給された現像剤を現像器へ搬送する搬送スクリューが設けられているとともに、貯蔵部内に補給された現像剤の山を均したり、貯蔵部内の旧現像剤との混合性を図るための攪拌部材を備えている。
【0005】
【発明が解決しようとする課題】
しかしながら、従来装置では前記トナーボトルを周方向に回転させてトナーを補給させる作動はこれを単独で行い、貯蔵部内の攪拌部材は、補給された現像剤を現像器へ搬送する搬送スクリューを作動するタイミングで作動させていた。このため、トナーボトルから補給されたトナーが貯蔵部内で山になってしまい、トナー量が安定しないという問題があった。
【0006】
また、トナーボトルを周方向に回転させてトナーを貯蔵部に補給するときは攪拌部材を同時に作動させ、貯蔵部内の現像剤を現像器へ搬送させるときは攪拌部材は作動させずに搬送スクリューのみを単独で作動させると、搬送スクリューの周囲のトナーのみが移動して、その周りにはトナーが残ったままの状態になってしまうという不都合がある。
【0007】
さらに、トナーボトルを周方向に回転させてトナーを貯蔵部に補給させる作動と、攪拌部材の作動及び貯蔵部内の搬送スクリューの作動を三者同時に行わせるようにすると、トナーボトルからの貯蔵部へのトナーの補給量と、搬送スクリューによる現像器への搬送量とが同じでないときは、貯蔵部内のトナー量が漸次少なくなってしまうか、溢れ出す虞があって安定しないという問題がある。
【0008】
さらにまた、トナーボトルを周方向に回転させる駆動源と、攪拌部材の駆動源と、搬送スクリューの駆動源とをそれぞれ別個に設け、これらを独立に作動させて上記問題が生じないようにそれぞれの作動タイミングを制御することも考えられるが、個々に駆動源を設けることは製造コストを高騰させてしまうという問題がある。
【0009】
上記の種々の問題を解消するため、本発明は、現像剤貯蔵部内に保有する現像剤の量を安定させ、貯蔵部内で現像剤がカマクラ状態になることがなく、しかも製造コストの低減化が期待できる現像剤補給装置を提供することを目的としている。
【0010】
【課題を解決するための手段】
上記の目的を達成するため、本発明は、現像剤を貯蔵する現像剤貯蔵部と、周方向に回転することにより周面に設けたスパイラル状の溝で現像剤を胴部分から首部分へ移動させ、該首部分の一側に設けた排出口から前記現像剤貯蔵部の補給口へ補給できるようにした現像剤収納容器と、前記現像剤貯蔵部から現像器へ現像剤を搬送する搬送スクリューと、前記現像剤貯蔵部内の現像剤を攪拌する攪拌部材と、を備えた現像剤補給装置であって、前記攪拌部材の駆動軸を、前記現像剤収納容器の駆動源及び前記搬送スクリューの駆動源にそれぞれ一方向クラッチを介して連繋することにより、前記攪拌部材が、前記現像剤収納容器の作動及び前記搬送スクリューの作動と連動するので、現像剤収納容器(トナーボトル)と搬送スクリューとをそれぞれ独立に駆動可能にするとともに、トナーボトルから貯蔵部にトナーを補給させる際にはトナーボトルの作動と同時に攪拌部材も作動させ、貯蔵部から現像器へトナーを搬送する際は、搬送スクリューの作動と同時に攪拌部材を作動させることができるように構成した。
【0011】
【発明の実施の態様】
次に、本発明の実施の態様を図面に基づいて説明する。なお、以下の説明中で現像剤をトナーということもある。
【0012】
図1において、1は現像器Gに供給する現像剤(トナー)を貯蔵する現像剤貯蔵部(トナー貯蔵部)で、該トナー貯蔵部1の上面にはトナー補給口2が設けられている。該トナー補給口2を設けたトナー貯蔵部1の上面には段差部3を介して連続するラック4が水平状に設けられ、現像剤収納容器(トナーボトル)5を横臥状に保持できるようになっている。
【0013】
前記トナーボトル5は、トナーを収納する大径の胴部分5aと、一側にトナー排出口6を有する小径の首部分5bと、胴部分5aから首部分5bに向けて狭窄させた肩部分5cとからなる。
【0014】
前記トナーボトル5の周面にはスパイラル状の溝(リブ)7が設けられ、該溝7はトナーボトル5を周方向に回転させると、内部に収納されているトナーを胴部分5aから首部分5bへ移動できるようになっている。また、首部分5bのトップ面には後記するロータ11の2つの爪片12が嵌入できる2つの凹溝8が設けられている。さらに、胴部分5aの尻面の中央にはトナーを収納させるときに開口できるキャップ9が圧入されている。
【0015】
前記ラック4の端末部には、トナーボトル5の胴部分5aの尻面を首部分5b側へ押圧できる押圧板10が設けられている。該押圧板10はハンドル(図示せず)の操作で前進移動する。即ち、押圧板10を前記ハンドル操作で後退させた状態でトナーボトル5をラック4上に置き、前記押圧板10を前進させると、トナーボトル5を正規の位置にセットさせるとともに、その位置を保てるようになっている。
【0016】
前記トナーボトル5の正規の位置とは、トナーボトル5の首部分5bのトップ面に設けた凹溝8が対向するロータ11に設けた爪片12と係合し、かつ、該首部分5bの一側面に設けたトナー排出口6の周方向の回転時に前記トナー補給口2に合致できる位置になった状態をいう。
【0017】
前記ロータ11はその軸13の端部に固着されたギア14が駆動源15の出力軸16に固着したギア17に噛合した中間ギア18を介して連繋し、駆動源15からの回転を受けて所定の方向に回転できるようになっている。従って、該ロータ11の爪片12が係合する凹溝8をトップ面に有するトナーボトル5は前記駆動源15より単独にて周方向に回転できるようになっている。
【0018】
前記トナーボトル5の周方向の回転によりボルト内に収納されているトナーは周面のスパイラル状の溝7の作用で、胴部分5aから首部分5bへ移動し、遂には、首部分5bの一側に設けた排出口6より排出してトナー補給口2から漸次、トナー貯蔵部1へ補給されることとなる。
【0019】
前記トナーボトル5の首部分5bには、その一側に設けたトナー排出口6より排出するトナーを、前記トナー貯蔵部1のトナー補給口2へ確実に導くためのシール部材19が摺接嵌合できるようになっている。
【0020】
前記シール部材19は、その一側に設けたトナー通孔20が前記トナー補給口2に合致するように支持枠21によりトナー貯蔵部1上に設置できるようになっている(図2参照)。該支持枠21は、U状の下枠21aと、扁平な上枠21bとでシール部材19を上下より挟持固定でき、該シール部材19がトナーボトル5の回転に追従して回転することがないように安定的に保持するためのものである。
【0021】
前記シール部材19を支持枠21で安定的に保持できるようにするための補助手段として、図2の場合には、支持枠21の上枠21bの内面に突子21b′を設け、該突子21b′をシール部材19の上面に設けた受け孔19′に嵌入させるように構成している。
【0022】
なお、前記シール部材19を支持枠21で安定的に保持するために必要があれば、U状の下枠21aとシール部材19との間に両面接着テープ(図示せず)を介装したり、U状の下枠21aとシール部材19との間に入れ子状の突起と凹部(図示せず)を形成してもよいことは勿論である。
【0023】
前記現像剤貯蔵部1内には、該貯蔵部1から現像器Gへ現像剤を搬送する搬送スクリュー22が設けられている。該搬送スクリュー22の端部にはギア23が固着され、該ギア23は駆動源24の出力軸25に固着したギア26に噛合した中間ギア27を介して単独にて回転できるようになっている。
【0024】
また、前記貯蔵部1内にはトナーを攪拌する攪拌部材28が設けられ、該攪拌部材28の駆動軸29の軸端には一方向クラッチを内蔵したギア30が固着されている。該一方向クラッチを内蔵したギア30は、前記搬送スクリュー用の駆動源24の出力軸25に固着したギア26に噛合した中間ギア27に噛合する第二中間ギア31を介して連繋している。
【0025】
従って、前記搬送スクリュー用の駆動源24の駆動により搬送スクリュー22が作動すると、前記ギア30が内蔵した一方向クラッチの作用で攪拌部材28の駆動軸29と一体化し、搬送スクリュー22の駆動系と接続することとなる。
【0026】
また、前記攪拌部材28の駆動軸29には、前記ギア30と併設して、同様に一方向クラッチを内蔵したギア32が固着されている。該一方向クラッチを内蔵したギア32は、前記トナーボトル用の駆動源15の出力軸16に固着したギア17に噛合した中間ギア18に噛合した第二中間ギア33及び第三中間ギア34を介して連繋している。
【0027】
従って、駆動源15の駆動によりトナーボトル5が回転作動すると、前記ギア32が内蔵した一方向クラッチの作用で攪拌部材28の駆動軸29と一体化し、トナーボトル5の駆動系と接続することとなる。
【0028】
上記態様に示した本願装置において、画像形成装置が起動され、駆動源15からギア連繋されてロータ11が回転すると、その動力を受けてトナーボトル5が周方向に回転し、胴内に収納しているトナーをスパイラル状の溝7の作用で胴部分5aから首部分5bへと移動させ、該首部分5bに設けたトナー排出口6より排出させて現像剤貯蔵部1の補給口2へと漸次補給する。
【0029】
前記トナーボトル用の駆動源15の作用でロータ11を介してトナーボトル5が回転するときはギア32に内蔵した一方向クラッチが働いて攪拌部材28の駆動軸29と一体化して駆動源15と繋がる。一方、ギア30は内蔵した一方向クラッチの働きで攪拌部材28の駆動軸29とはフリーとなる。
【0030】
逆に、搬送スクリュー用の駆動源24の作用で搬送スクリュー22が回転するときはギア30に内蔵した一方向クラッチが働いて攪拌部材28の駆動軸29と一体化して駆動源24と繋がる。一方、ギア32は内蔵した一方向クラッチの働きで攪拌部材28の駆動軸29とはフリーとなる。
【0031】
換言すれば、トナーボトル5が回転して貯蔵部1にトナーを補給させる際にはトナーボトルの作動と同時に攪拌部材28も作動し、一方、貯蔵部1から現像器Gへトナーを搬送する際は、搬送スクリュー22の作動と同時に攪拌部材28が作動できるようになる。
【0032】
【発明の効果】
以上説明した如く、本発明は、トナーボトルの駆動源及び搬送スクリューの駆動源にそれぞれ一方向クラッチを介して攪拌部材の駆動軸を連繋しているため、トナーボトルから貯蔵部にトナーを補給させる際にはトナーボトルの作動と同時に攪拌部材も作動し、貯蔵部から現像器へトナーを搬送する際は、搬送スクリューの作動と同時に攪拌部材も作動する。従って、トナー貯蔵部内に保有するトナーの量を安定させ、貯蔵部内でトナーがカマクラ状態になることがなく、しかも攪拌部材には駆動源が不要となるので、その分製造コストの低減化が期待できるという各種の優れた効果を奏するものである。
【図面の簡単な説明】
【図1】本願装置の断面図である。
【図2】本願装置に用いるシール部材とトナーボトルとの関係を示す略示的斜視図である。
【図3】現像剤収納容器の駆動系及び搬送スクリューの駆動系を示す図である。
【符号の説明】
1 現像剤貯蔵部(トナー貯蔵部)
2 現像剤補給口(トナー補給口)
3 段差部
4 ラック
5 現像剤収納容器(トナーボトル)
5a 胴部分
5b 首部分
5c 肩部分
6 現像剤の排出口(トナー排出口)
7 スパイラル状の溝(リブ)
8 トナーボトルの首部分のトップ面に設けた凹溝
9 トナーボトルの胴部分の尻面の開口に圧入したキャップ
10 トナーボトルの胴部分の尻面を押す押圧板
11 ロータ
12 ロータの正面に設けた爪片
13 ロータの軸
14 ギア
15 駆動源
16 出力軸
17 ギア
18 中間ギア
19 シール部材
20 トナー通孔
21 支持枠
22 搬送スクリュー
23 ギア
24 搬送スクリュー用の駆動源
25 出力軸
26 ギア
27 中間ギア
28 攪拌部材
29 攪拌部材の駆動軸
30 一方向クラッチを内蔵したギア
31 第二中間ギア
32 一方向クラッチを内蔵したギア
33 第二中間ギア
34 第三中間ギア
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a developer replenishing device used for a developing device such as an electrophotographic image forming apparatus.
[0002]
[Prior art]
Conventionally, when the developer is supplied to the developer storage section, the outlet of the developer container (toner bottle) containing the developer is put into the supply port at a stretch, but the developer is like smoke. A phenomenon (smoke generation phenomenon) occurs, and there is a possibility that the periphery of the developer storage part is stained.
[0003]
Therefore, in recent years, a toner bottle is installed on the upper surface of the developer storage portion so as to be rotatable in the circumferential direction, and the toner bottle is rotated in the circumferential direction to develop the toner in a spiral groove (rib) provided on the circumferential surface. A developer replenishing device has been used in which the developer is moved to one side and can be gradually supplied to a developer replenishing port from a discharge port provided on one side.
[0004]
In the developer storage section, a transport screw that transports the replenished developer to the developing device is provided, and the level of the replenished developer in the storage section is leveled, and the old developer in the storage section is removed. And a stirring member for improving the mixing property.
[0005]
[Problems to be solved by the invention]
However, in the conventional device, the operation of replenishing toner by rotating the toner bottle in the circumferential direction is performed independently, and the stirring member in the storage unit operates the transport screw that transports the replenished developer to the developing device. It was activated at the timing. For this reason, there is a problem that the toner replenished from the toner bottle peaks in the storage unit, and the amount of toner is not stable.
[0006]
When the toner bottle is rotated in the circumferential direction to supply the toner to the storage unit, the stirring member is operated at the same time, and when the developer in the storage unit is transferred to the developing device, the stirring screw is not operated and only the conveyance screw is operated. Is operated alone, there is a disadvantage that only the toner around the transport screw moves and the toner remains around the transport screw.
[0007]
Further, when the operation of rotating the toner bottle in the circumferential direction to supply the toner to the storage unit, the operation of the stirring member, and the operation of the transport screw in the storage unit are simultaneously performed, the operation from the toner bottle to the storage unit is performed. When the toner supply amount is not the same as the toner supply amount to the developing device by the transport screw, there is a problem that the toner amount in the storage portion gradually decreases or overflows, and there is a problem that the toner is not stabilized.
[0008]
Furthermore, a drive source for rotating the toner bottle in the circumferential direction, a drive source for the stirring member, and a drive source for the transport screw are separately provided, and these are operated independently so that the above-described problem does not occur. Although it is conceivable to control the operation timing, providing individual driving sources raises the problem of increasing the manufacturing cost.
[0009]
In order to solve the above-mentioned various problems, the present invention stabilizes the amount of the developer held in the developer storage section, so that the developer does not become in a stuck state in the storage section, and furthermore, the manufacturing cost can be reduced. It is an object of the present invention to provide a promising developer supply device.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, the present invention moves a developer from a body part to a neck part by a developer storage part for storing the developer and a spiral groove provided on a peripheral surface by rotating in a circumferential direction. A developer container adapted to be replenished from a discharge port provided on one side of the neck portion to a replenishing port of the developer storage unit, and a transport screw for transporting the developer from the developer storage unit to a developing device And a stirring member for stirring the developer in the developer storage unit, wherein a drive shaft of the stirring member is driven by a drive source of the developer storage container and a drive of the transport screw. Since the stirring member is linked to the operation of the developer storage container and the operation of the transport screw by being connected to the respective sources via one-way clutches , the developer storage container (toner bottle) and the transport screw are connected. So When the toner bottle is replenished to the storage unit, the agitating member is also activated at the same time as the toner bottle is activated.When the toner is transported from the storage unit to the developing unit, the transport screw is used. The agitating member can be operated simultaneously with the operation of.
[0011]
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Next, embodiments of the present invention will be described with reference to the drawings. In the following description, the developer may be referred to as a toner.
[0012]
In FIG. 1, reference numeral 1 denotes a developer storage section (toner storage section) for storing a developer (toner) to be supplied to the developing device G. A toner supply port 2 is provided on an upper surface of the toner storage section 1. On the upper surface of the toner storage section 1 provided with the toner supply port 2, a continuous rack 4 is provided horizontally via a stepped portion 3 so that a developer storage container (toner bottle) 5 can be held in a lying state. Has become.
[0013]
The toner bottle 5 has a large-diameter trunk portion 5a for storing toner, a small-diameter neck portion 5b having a toner discharge port 6 on one side, and a shoulder portion 5c narrowed from the trunk portion 5a toward the neck portion 5b. Consists of
[0014]
A spiral groove (rib) 7 is provided on the peripheral surface of the toner bottle 5, and when the toner bottle 5 is rotated in the circumferential direction, the toner stored in the toner bottle 5 is transferred from the body part 5a to the neck part. 5b. Further, two concave grooves 8 into which two claw pieces 12 of the rotor 11 described later are fitted are provided on the top surface of the neck portion 5b. Further, a cap 9 that can be opened when storing toner is press-fitted in the center of the bottom surface of the trunk portion 5a.
[0015]
At the end of the rack 4, there is provided a pressing plate 10 which can press the buttocks of the body 5 a of the toner bottle 5 toward the neck 5 b. The pressing plate 10 moves forward by operating a handle (not shown). That is, when the toner bottle 5 is placed on the rack 4 with the pressing plate 10 retracted by the handle operation, and the pressing plate 10 is moved forward, the toner bottle 5 can be set at a regular position and the position can be maintained. It has become.
[0016]
The normal position of the toner bottle 5 means that the concave groove 8 provided on the top surface of the neck portion 5b of the toner bottle 5 engages with the claw piece 12 provided on the opposed rotor 11, and When the toner outlet 6 provided on one side is rotated in the circumferential direction, the toner outlet 6 is in a position where it can match the toner supply port 2.
[0017]
The rotor 11 is connected to a gear 14 fixed to an end of the shaft 13 via an intermediate gear 18 meshed with a gear 17 fixed to an output shaft 16 of a drive source 15, and receives rotation from the drive source 15. It can rotate in a predetermined direction. Therefore, the toner bottle 5 having the concave groove 8 on the top surface with which the claw piece 12 of the rotor 11 engages can be rotated by the drive source 15 alone in the circumferential direction.
[0018]
By the rotation of the toner bottle 5 in the circumferential direction, the toner stored in the bolt moves from the trunk portion 5a to the neck portion 5b by the action of the spiral groove 7 on the peripheral surface, and finally, one end of the neck portion 5b. The toner is discharged from the discharge port 6 provided on the side, and is gradually supplied to the toner storage unit 1 from the toner supply port 2.
[0019]
A seal member 19 for slidingly guiding toner discharged from the toner discharge port 6 provided on one side of the neck portion 5b of the toner bottle 5 to the toner supply port 2 of the toner storage unit 1 is slidably fitted. Can be combined.
[0020]
The seal member 19 can be installed on the toner storage unit 1 by the support frame 21 so that the toner through hole 20 provided on one side thereof matches the toner supply port 2 (see FIG. 2). The support frame 21 can sandwich and fix the seal member 19 from above and below by a U-shaped lower frame 21a and a flat upper frame 21b, and the seal member 19 does not rotate following the rotation of the toner bottle 5. The purpose of this is to maintain the stability as described above.
[0021]
In the case of FIG. 2, a protrusion 21b 'is provided on the inner surface of the upper frame 21b of the support frame 21 as an auxiliary means for enabling the seal member 19 to be stably held by the support frame 21. 21b 'is configured to fit into a receiving hole 19' provided on the upper surface of the seal member 19.
[0022]
If necessary to stably hold the seal member 19 with the support frame 21, a double-sided adhesive tape (not shown) may be interposed between the U-shaped lower frame 21a and the seal member 19. Of course, nested projections and recesses (not shown) may be formed between the U-shaped lower frame 21a and the sealing member 19.
[0023]
A transport screw 22 for transporting the developer from the storage unit 1 to the developing device G is provided in the developer storage unit 1. A gear 23 is fixed to an end of the transport screw 22, and the gear 23 can rotate independently via an intermediate gear 27 meshed with a gear 26 fixed to an output shaft 25 of a drive source 24. .
[0024]
Further, a stirring member 28 for stirring the toner is provided in the storage section 1, and a gear 30 having a one-way clutch is fixed to the shaft end of the drive shaft 29 of the stirring member 28. The gear 30 incorporating the one-way clutch is connected via a second intermediate gear 31 meshed with an intermediate gear 27 meshed with a gear 26 fixed to an output shaft 25 of the drive source 24 for the transport screw.
[0025]
Accordingly, when the transport screw 22 is operated by the drive of the drive source 24 for the transport screw, the gear 30 is integrated with the drive shaft 29 of the agitating member 28 by the action of a one-way clutch built in, and the drive system of the transport screw 22 is Will be connected.
[0026]
Further, a gear 32 having a one-way clutch built therein is fixed to the drive shaft 29 of the stirring member 28 in addition to the gear 30. The gear 32 incorporating the one-way clutch is provided via a second intermediate gear 33 and a third intermediate gear 34 meshed with the intermediate gear 18 meshed with the gear 17 fixed to the output shaft 16 of the toner bottle drive source 15. Connected.
[0027]
Therefore, when the toner bottle 5 is rotated by the drive of the drive source 15, the gear 32 is integrated with the drive shaft 29 of the stirring member 28 by the action of the one-way clutch built in, and is connected to the drive system of the toner bottle 5. Become.
[0028]
In the apparatus of the present invention shown in the above embodiment, when the image forming apparatus is started and the rotor 11 is rotated by being connected to the gears from the drive source 15, the toner bottle 5 is rotated in the circumferential direction by receiving the power and stored in the body. The toner is moved from the trunk portion 5a to the neck portion 5b by the action of the spiral groove 7, and is discharged from the toner discharge port 6 provided in the neck portion 5b to the replenishment port 2 of the developer storage unit 1. Replenish gradually.
[0029]
When the toner bottle 5 is rotated via the rotor 11 by the action of the toner bottle drive source 15, a one-way clutch built in the gear 32 operates to integrate with the drive shaft 29 of the stirring member 28 and Connect. On the other hand, the gear 30 is free from the drive shaft 29 of the stirring member 28 by the function of the built-in one-way clutch.
[0030]
Conversely, when the transport screw 22 is rotated by the action of the transport screw drive source 24, the one-way clutch built in the gear 30 is operated to be integrated with the drive shaft 29 of the stirring member 28 and connected to the drive source 24. On the other hand, the gear 32 is free from the drive shaft 29 of the stirring member 28 by the function of the built-in one-way clutch.
[0031]
In other words, when the toner bottle 5 rotates to supply the toner to the storage unit 1, the stirring member 28 also operates at the same time as the operation of the toner bottle, and when the toner is conveyed from the storage unit 1 to the developing device G, As a result, the stirring member 28 can be operated simultaneously with the operation of the transport screw 22.
[0032]
【The invention's effect】
As described above, in the present invention, since the drive shaft of the stirring member is connected to the drive source of the toner bottle and the drive source of the transport screw via the one-way clutch, toner is supplied from the toner bottle to the storage unit. In this case, the stirring member also operates at the same time as the operation of the toner bottle, and when conveying the toner from the storage unit to the developing device, the stirring member also operates at the same time as the operation of the conveying screw. Therefore, the amount of toner held in the toner storage unit is stabilized, and the toner does not change into a stuck state in the storage unit. Further, since a drive source is not required for the stirring member, a reduction in manufacturing cost is expected. Various excellent effects can be achieved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of the device of the present application.
FIG. 2 is a schematic perspective view illustrating a relationship between a seal member and a toner bottle used in the apparatus of the present application.
FIG. 3 is a diagram illustrating a drive system of a developer container and a drive system of a transport screw.
[Explanation of symbols]
1 Developer storage unit (toner storage unit)
2 Developer supply port (toner supply port)
3 Step portion 4 Rack 5 Developer container (toner bottle)
5a trunk 5b neck 5c shoulder 6 developer outlet (toner outlet)
7 Spiral groove (rib)
8 A concave groove provided on the top surface of the neck portion of the toner bottle 9 A cap press-fitted into the opening of the bottom surface of the body portion of the toner bottle 10 A pressing plate 11 for pressing the bottom surface of the body portion of the toner bottle 11 Rotor 12 Provided in front of the rotor Claw piece 13 Rotor shaft 14 Gear 15 Drive source 16 Output shaft 17 Gear 18 Intermediate gear 19 Seal member 20 Toner through hole 21 Support frame 22 Transport screw 23 Gear 24 Transport screw drive source 25 Output shaft 26 Gear 27 Intermediate gear 28 Stirring Member 29 Drive Shaft of Stirring Member 30 Gear 31 with One-Way Clutch 31 Second Intermediate Gear 32 Gear with One-Way Clutch 33 Second Middle Gear 34 Third Middle Gear

Claims (1)

現像剤を貯蔵する現像剤貯蔵部と、周方向に回転することにより周面に設けたスパイラル状の溝で現像剤を胴部分から首部分へ移動させ、該首部分の一側に設けた排出口から前記現像剤貯蔵部の補給口へ補給できるようにした現像剤収納容器と、前記現像剤貯蔵部から現像器へ現像剤を搬送する搬送スクリューと、前記現像剤貯蔵部内の現像剤を攪拌する攪拌部材と、を備えた現像剤補給装置であって、前記攪拌部材の駆動軸を、前記現像剤収納容器の駆動源及び前記搬送スクリューの駆動源にそれぞれ一方向クラッチを介して連繋することにより、前記攪拌部材が、前記現像剤収納容器の作動及び前記搬送スクリューの作動と連動することを特徴とする現像剤補給装置。The developer is moved from the drum portion to the neck by a spiral groove provided on the peripheral surface by rotating in a circumferential direction and a developer storage portion for storing the developer, and a drain provided on one side of the neck portion. A developer storage container capable of being supplied from an outlet to a supply port of the developer storage unit, a transport screw for transporting the developer from the developer storage unit to the developing device, and stirring the developer in the developer storage unit a stirring member, a developer supplying apparatus which includes a drive shaft of the stirring member, be linked with each through a respective one-way clutch to a drive source of the drive source and the conveying screw of the developer accommodating container Wherein the stirring member is interlocked with the operation of the developer storage container and the operation of the transport screw .
JP36632897A 1997-12-24 1997-12-24 Developer supply device Expired - Fee Related JP3543257B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP36632897A JP3543257B2 (en) 1997-12-24 1997-12-24 Developer supply device
EP98124332A EP0926572B1 (en) 1997-12-24 1998-12-21 Developer replenishing apparatus
DE69823320T DE69823320D1 (en) 1997-12-24 1998-12-21 developer replenishing
US09/217,705 US5966574A (en) 1997-12-24 1998-12-21 Developer replenishing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP36632897A JP3543257B2 (en) 1997-12-24 1997-12-24 Developer supply device

Publications (2)

Publication Number Publication Date
JPH11184232A JPH11184232A (en) 1999-07-09
JP3543257B2 true JP3543257B2 (en) 2004-07-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP36632897A Expired - Fee Related JP3543257B2 (en) 1997-12-24 1997-12-24 Developer supply device

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Country Link
JP (1) JP3543257B2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6289182B1 (en) 2000-02-18 2001-09-11 Toshiba Tec Kabushiki Kaisha Method and apparatus for discriminating toner bottle types, stirring toner, and detecting the amount of remaining toner
US6334037B1 (en) 2000-02-18 2001-12-25 Toshiba Tec Kabushiki Kaisha Image forming apparatus
JP2004139031A (en) 2002-09-24 2004-05-13 Ricoh Co Ltd Image forming apparatus, supply toner container, and process cartridge
JP4383898B2 (en) 2003-02-28 2009-12-16 株式会社リコー Developer container, developer supply device, and image forming apparatus
JP2005221825A (en) 2004-02-06 2005-08-18 Ricoh Co Ltd Toner bottle and manufacturing method thereof, toner container, toner cartridge, and image forming apparatus
JP4656561B2 (en) 2004-03-05 2011-03-23 株式会社リコー Toner container, toner supply device, developing device, process cartridge, and image forming apparatus
JP2006119314A (en) * 2004-10-20 2006-05-11 Canon Inc Image forming apparatus
JP2006184611A (en) * 2004-12-28 2006-07-13 Kyocera Mita Corp Image forming apparatus
JP5065512B2 (en) * 2011-06-28 2012-11-07 キヤノン株式会社 Image forming apparatus

Also Published As

Publication number Publication date
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