JP2001092224A - Developing machine - Google Patents
Developing machineInfo
- Publication number
- JP2001092224A JP2001092224A JP26847199A JP26847199A JP2001092224A JP 2001092224 A JP2001092224 A JP 2001092224A JP 26847199 A JP26847199 A JP 26847199A JP 26847199 A JP26847199 A JP 26847199A JP 2001092224 A JP2001092224 A JP 2001092224A
- Authority
- JP
- Japan
- Prior art keywords
- developer
- stirring
- container
- developing device
- developing
- 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.)
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- Dry Development In Electrophotography (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、例えば、プリンタ
や複写機などの画像形成装置に用いられる現像装置に関
するものであり、特には、トナーカートリッジの現像剤
撹拌部の構成に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a developing device used for an image forming apparatus such as a printer or a copying machine, and more particularly to a structure of a developer stirring section of a toner cartridge.
【0002】[0002]
【従来の技術】電子写真を用いた画像形成装置では、そ
の使用が長期間に及ぶと、感光体の交換、現像剤の補
給、交換や調整等が必要であった。このような保守作業
は専門知識を持つサービスマンが行っていた。これらの
不便さ、不具合を解消する手段として、潜像担持体とし
ての感光ドラム、現像装置、クリーニング装置等の画像
形成手段を一体化したカートリッジ式のものが製品化さ
れ、一般ユーザが自ら交換保守を行えるようになった。2. Description of the Related Art In an image forming apparatus using electrophotography, when the image forming apparatus has been used for a long period of time, it has been necessary to replace a photosensitive member, replenish, exchange and adjust a developer. Such maintenance work was performed by service personnel with specialized knowledge. As a means for solving these inconveniences and problems, a cartridge type in which an image forming means such as a photosensitive drum as a latent image carrier, a developing device, and a cleaning device is integrated has been commercialized, and a general user can exchange and maintain the product. You can now do.
【0003】しかし、上記プロセスカートリッジの使用
可能期間が伸びるに伴い、現像剤の量を増やす必要が出
てきた。この場合、収納するトナーの物流時のタッピン
グ(振動、衝撃)による固化により、撹拌トルクの増大
や容器の大型化に伴うトナー残量の増加などの不具合が
出てきた。However, as the usable period of the process cartridge has been extended, it has become necessary to increase the amount of developer. In this case, solidification due to tapping (vibration and impact) during distribution of the stored toner causes problems such as an increase in stirring torque and an increase in the amount of remaining toner due to the enlargement of the container.
【0004】これらを解決する方法として、特開平4−
191768号公報等で、弾性変形可能な撹拌部材を有
した現像装置が提案されている。As a method for solving these problems, Japanese Patent Laid-Open No.
Japanese Patent Application Laid-Open No. 191768 discloses a developing device having an elastically deformable stirring member.
【0005】これは、図6に示すように、現像容器5が
2室に別れており、ここに収納された現像剤tを撹拌搬
送する撹拌部材6を有するものである。1は潜像担持体
である感光体(感光ドラム)、2は現像スリーブ、5は
現像容器、6は撹拌部材、9は現像部である。As shown in FIG. 6, the developing container 5 is divided into two chambers, and has a stirring member 6 for stirring and transporting the developer t stored therein. 1 is a photoconductor (photosensitive drum) as a latent image carrier, 2 is a developing sleeve, 5 is a developing container, 6 is a stirring member, and 9 is a developing unit.
【0006】現像容器5には現像剤tが収納され、前方
には現像部9に現像剤tを送り込む開口部4が開けられ
ている。撹拌部材6は弾性変形可能なフィルム状のフィ
ン部6aを持っており、回転中心軸6bに取り付けられ
ている。The developing container 5 stores the developer t, and an opening 4 for feeding the developer t to the developing unit 9 is opened in the front. The stirring member 6 has a film-like fin portion 6a that can be elastically deformed, and is attached to the rotation center shaft 6b.
【0007】[0007]
【発明が解決しようとする課題】この構成においては、
長寿命化に伴って現像剤の量を増やす必要がある場合、
現像容器5を縦に大きくするか、横に重連する必要があ
る。横に重連した場合、現像剤を搬送する撹拌部材が多
く必要になり、また現像容器の形状は撹拌部材6の回転
に合わせ、同心円形状となり、現像容器としては、凹凸
のある形状で装置としては大きくなってしまっていた。In this configuration,
If it is necessary to increase the amount of developer due to longer life,
It is necessary to enlarge the developing container 5 vertically or to connect it horizontally. In the case of a horizontal cascade, a large number of stirring members for transporting the developer are required, and the shape of the developing container becomes concentric in accordance with the rotation of the stirring member 6, and the developing container has an uneven shape as an apparatus. Was getting bigger.
【0008】更に、撹拌部材6が現像容器5の内壁に当
接し摺動する際、撹拌部材6のフィン部6aが撓んで摺
動するため回転負荷が大きくなったり、現像容器の成形
時の変形が大きいと侵入量が変化し、時として撹拌部材
が現像容器から離間する場合もあった。Further, when the agitating member 6 comes into contact with the inner wall of the developing container 5 and slides, the fin portion 6a of the agitating member 6 bends and slides, so that a rotational load is increased or deformation during the molding of the developing container is performed. Is large, the amount of intrusion changes, and sometimes the stirring member separates from the developing container.
【0009】本発明は、上記した従来例を改良したもの
で、現像剤を大容量化しても現像装置のコンパクト化が
図れ、また現像容器内の攪拌部材の攪拌負荷を低減でき
る現像装置を提供しようとするものである。The present invention is an improvement of the above-mentioned conventional example, and provides a developing device which can achieve a compact developing device even if the capacity of the developer is increased, and which can reduce the stirring load of the stirring member in the developing container. What you want to do.
【0010】[0010]
【課題を解決するための手段】本出願に係る発明の目的
を実現する現像装置の第1の構成は、現像剤を収納する
現像剤収納容器と、前記現像剤収納容器の内部で回転可
能に支持され、前記現像剤収納容器内の現像剤を撹拌し
ながら前方の現像部に現像剤を搬送する現像剤撹拌搬送
手段とを有し、前記現像剤撹拌搬送手段が前記現像剤収
納容器の内壁と当接する現像装置において、前記現像剤
撹拌搬送手段は、前記現像剤収納容器の内壁との当接に
より、径方向内側に変位可能としたことを特徴とする。According to a first aspect of the present invention, there is provided a developing device which includes a developer container for storing a developer, and a rotatable container inside the developer container. And a developer agitating / transporting means for transporting the developer to a front developing unit while agitating the developer in the developer accommodating container. The developer agitating / transporting means includes an inner wall of the developer accommodating container. The developer stirring and conveying means can be displaced radially inward by contact with an inner wall of the developer accommodating container.
【0011】本出願に係る発明の目的を実現する現像装
置の第2の構成は、上記第1の構成で、前記現像剤撹拌
搬送手段は、回転軸と、前記回転軸に取り付けられる撹
拌部材本体とから構成され、前記撹拌部材本体が前記回
転軸に対し、径方向内側に変位可能としたことを特徴と
する。A second configuration of the developing device for realizing the object of the present invention according to the present application is the first configuration, wherein the developer stirring and conveying means includes a rotating shaft, and a stirring member main body attached to the rotating shaft. Wherein the stirring member main body can be displaced radially inward with respect to the rotation shaft.
【0012】本出願に係る発明の目的を実現する現像装
置の第3の構成は、上記第1の構成で、前記現像剤攪拌
手段は、回転軸と、前記回転軸に取り付けられる複数の
攪拌部材本体とから構成され、前記複数の攪拌部材が個
々に前記回転軸に対し、径方向内側に変位可能としたこ
とを特徴とする。A third configuration of the developing device for realizing the object of the present invention according to the present application is the above-described first configuration, wherein the developer agitating means includes a rotating shaft, and a plurality of agitating members attached to the rotating shaft. A plurality of agitating members are individually displaceable radially inward with respect to the rotation shaft.
【0013】本出願に係る発明の目的を実現する現像装
置の第4の構成は、上記いずれかの構成で、前記現像剤
攪拌手段は、前記現像剤収納容器内に前後方向に複数配
置されたことを特徴とする。According to a fourth aspect of the developing device for realizing the object of the invention according to the present application, in any one of the above-mentioned configurations, the developer stirring means is arranged in the developer accommodating container in a front-rear direction. It is characterized by the following.
【0014】本出願に係る発明の目的を実現する現像装
置の第5の構成は、上記第2、第33または第4の構成
で、前記回転軸の少なくとも一部が二方取りされた形状
を有し、この部分で前記攪拌部材本体に軸回りに回転不
能で、かつ径方向に移動可能に嵌合し、弾性部材により
常時径方向外側に向けて押圧されていることを特徴とす
る。According to a fifth aspect of the present invention, there is provided a developing device according to the above-described second, thirty-third or fourth aspect, wherein at least a part of the rotating shaft is bilaterally formed. This portion is fitted to the stirring member main body so as to be non-rotatable around the axis and movably in the radial direction, and is constantly pressed radially outward by an elastic member.
【0015】本出願に係る発明の目的を実現する現像装
置の第6の構成は、上記いずれかの構成で、前記現像剤
収納容器の底面は、平坦面としたことを特徴とする。According to a sixth aspect of the invention, there is provided a developing apparatus for achieving the object of the present invention, wherein the bottom surface of the developer accommodating container is a flat surface.
【0016】本出願に係る発明の目的を実現する現像装
置の第7の構成は、上記いずれかの構成で、前記現像剤
収納容器の前後方向の壁面と底面との繋ぎ部分は、前記
現像剤攪拌手段との当接で、該現像剤攪拌手段を徐々に
径方向内側に変位させる曲面に形成されていることを特
徴とする。According to a seventh aspect of the present invention, there is provided a developing device comprising any one of the above-described structures, wherein a connecting portion between a front-rear direction wall surface and a bottom surface of the developer accommodating container includes the developer. It is characterized in that the developer agitating means is formed into a curved surface which is gradually displaced radially inward by contact with the agitating means.
【0017】本出願に係る発明の目的を実現する現像装
置の第8の構成は、上記いずれかの構成で、前記現像剤
収納容器は、前後方向の壁面が線対称形状に形成されて
いることを特徴とする。According to an eighth aspect of the present invention, there is provided a developing device according to any one of the above aspects, wherein the developer container has a front-rear direction wall surface formed in a line-symmetric shape. It is characterized by.
【0018】[0018]
【発明の実施の形態】以下、本発明の実施の形態を図面
を用いて説明する。本実施の形態の説明では、画像形成
装置としてプリンタの例で説明するが、複写機や印刷機
等でも同様な構成により同等な効果が得られる。 (第1の実施の形態)図1は、トナーカートリッジの現
像容器部の断面図である。この他の構成は図6に示した
従来の例と同様である。ここで、破線で描かれた現像容
器5’は従来の現像容器である。Embodiments of the present invention will be described below with reference to the drawings. In the description of the present embodiment, an example in which a printer is used as an image forming apparatus will be described. However, the same effect can be obtained with a similar configuration in a copying machine, a printing machine, and the like. (First Embodiment) FIG. 1 is a sectional view of a developing container portion of a toner cartridge. Other configurations are the same as those of the conventional example shown in FIG. Here, the developing container 5 'drawn by a broken line is a conventional developing container.
【0019】本実施の形態の現像容器5の形状、撹拌部
材6の動きについて説明する。The shape of the developing container 5 and the movement of the stirring member 6 according to the present embodiment will be described.
【0020】本実施の形態において、現像容器5は1つ
の容器内に2つの攪拌部材6A、6Bが前後に配置され
ており、図中破線で示す従来の2連の現像容器5’と前
後方向において同サイズに形成されている。In this embodiment, the developing container 5 has two agitating members 6A and 6B disposed in the front and rear in one container, and the developing container 5 and the conventional two-stage developing container 5 'shown by a broken line in the figure. Are formed in the same size.
【0021】本実施の形態の現像容器5は、容器本体を
構成する後方(図中右側)の壁5aが略垂直であり、現
像剤tがその自重で自然落下を始める安息角以上の角度
を持った壁面5bに連続的に繋がっている。後方の撹拌
部材6Aのフィン部6cは、この壁面5bの途中から当
接し始める。In the developing container 5 of the present embodiment, the rear (right side in the figure) wall 5a constituting the container main body is substantially vertical, and the developer t is inclined by an angle equal to or greater than the angle of repose at which the developer t falls by its own weight. It is continuously connected to the wall surface 5b. The fin portion 6c of the rear stirring member 6A starts to abut on the wall 5b.
【0022】現像容器5の底面5dと前記壁面5bは例
えば楕円形状面5cで繋がれ、撹拌部材6Aのフィン部
6cが徐々に撓むようになっている。攪拌部材6Aのフ
ィン部6cが底面5dから離れる点を5eとすると、点
5eは、攪拌部材6Aのフィン部6cの先端が自由長時
に描く円軌道6eと底面5dの交点となる。The bottom surface 5d of the developing container 5 and the wall surface 5b are connected by, for example, an elliptical surface 5c, so that the fin portion 6c of the stirring member 6A is gradually bent. Assuming that the point at which the fin portion 6c of the stirring member 6A is separated from the bottom surface 5d is 5e, the point 5e is the intersection of the circular orbit 6e drawn by the tip of the fin portion 6c of the stirring member 6A during free length and the bottom surface 5d.
【0023】また、現像容器5の前方は、後方の形状と
線対称な形状を考えれば良い。The front of the developing container 5 may be considered to have a shape symmetrical with the rear.
【0024】すなわち、前方の撹拌部材6Bのフィン部
6dは、底面5dの点5eの近傍で当接を始め、徐々に
撓んでいき、楕円形状をした壁面5fでその撓みが徐々
に開放される。壁面5fは前方の開口部4に繋がってお
り、撹拌部材6Bのフィン部6dによって搬送された現
像剤tは、図6に示すように、開口部4より現像部9内
の現像スリーブ2に移動する。That is, the fin portion 6d of the front stirring member 6B starts abutting near the point 5e of the bottom surface 5d and gradually bends, and the bending is gradually released by the elliptical wall surface 5f. . The wall surface 5f is connected to the front opening 4, and the developer t transported by the fin 6d of the stirring member 6B moves from the opening 4 to the developing sleeve 2 in the developing unit 9 as shown in FIG. I do.
【0025】このように、現像容器5と撹拌部材6A,
6Bの形状を定めれば、外形寸法を従来と殆ど同じにし
ても現像容器の底面を平坦にできるため、その容積を大
きくでき、現像剤tを増量することができる。As described above, the developing container 5 and the stirring members 6A,
If the shape of 6B is determined, the bottom surface of the developing container can be flattened even if the external dimensions are almost the same as the conventional one, so that the volume can be increased and the amount of developer t can be increased.
【0026】また、その撹拌部材6を徐々に変形させる
ことができるため、衝撃を少なくし、撹拌部材6A,6
Bの各フィン部6c,6dが跳ねる音を小さくできる。Further, since the stirring member 6 can be gradually deformed, the impact is reduced and the stirring members 6A, 6A
The sound of the fins 6c and 6d of B jumping can be reduced.
【0027】また、衝撃を少なくできることより、振動
も小さくでき、画像への影響もなくすることができる。Further, since the impact can be reduced, the vibration can be reduced and the influence on the image can be reduced.
【0028】ここで、更に図2、図3、図4を用いて本
実施の形態について説明する。図2は、攪拌部材6A
(6B)を構成するフィン部6c(6d)のボス部10
と撹拌軸11の分解斜視図で、ボス部10の軸穴10a
はI型に形成され、攪拌軸11の差し込み部11aの短
軸側の幅は軸穴10aの短軸側の幅に合致する厚みに形
成されるが、長軸側の長さは、軸穴10aの長軸側の長
さよりも短く形成されている。Here, this embodiment will be described with reference to FIGS. 2, 3 and 4. FIG. FIG. 2 shows the stirring member 6A.
Boss portion 10 of fin portion 6c (6d) constituting (6B)
And an exploded perspective view of the stirring shaft 11, showing a shaft hole 10 a of the boss 10.
Is formed in an I-shape, and the width of the short shaft side of the insertion portion 11a of the stirring shaft 11 is formed to a thickness matching the width of the short shaft side of the shaft hole 10a, but the length of the long shaft side is 10a is formed shorter than the length of the long axis side.
【0029】図3は、フィン部のボス部10の軸穴10
aと撹拌軸11の差し込み部11aとの軸方向断面図で
ある。図4は、図3のA−A部の断面を示したものであ
る。これら図2、図3、図4に示すように、撹拌部材6
A(6B)をボス部10を有するフィン部6c(6d)
と、撹拌軸11の2体構成とした。FIG. 3 shows the shaft hole 10 of the boss 10 of the fin.
FIG. 2 is an axial sectional view of the a and the insertion portion 11a of the stirring shaft 11; FIG. 4 shows a cross section taken along the line AA in FIG. As shown in FIG. 2, FIG. 3, and FIG.
A (6B) is a fin 6c (6d) having a boss 10
And a two-piece structure of the stirring shaft 11.
【0030】図2に示すように、撹拌軸11の差し込み
部11aは少なくともその端部が2方取りした形状をし
ている。ボス部10の内面は、この2方取りに係合する
形状になっており、図4に示すように径方向に移動可能
になっている。ボス部10の軸穴10aにはバネ等の弾
性部材12を配置され、撹拌軸11の差し込み部11a
と係合して径方向外方に攪拌軸11を付勢している。As shown in FIG. 2, the insertion portion 11a of the stirring shaft 11 has a shape in which at least its end is cut in two directions. The inner surface of the boss portion 10 is shaped to engage with the two-way cutting, and is movable in the radial direction as shown in FIG. An elastic member 12 such as a spring is disposed in a shaft hole 10 a of the boss portion 10.
And urges the stirring shaft 11 radially outward.
【0031】図4を用いて動作について説明すると、撹
拌部材6A(6B)のフィン先端10aが現像容器の内
壁面に当接すると、撹拌部6A(6B)のボス部10は
バネ12に抗して矢印Bの方向に移動する。これによ
り、図1に示すように、撹拌部材6A(6B)のフィン
先端の現像容器5に対する侵入量が変化しても、係合す
る2方取りの溝10bの範囲で侵入量を軽減できる。し
たがって、撹拌時の抵抗を少なくすることができる。The operation will be described with reference to FIG. 4. When the fin tip 10a of the stirring member 6A (6B) comes into contact with the inner wall surface of the developing container, the boss 10 of the stirring portion 6A (6B) opposes the spring 12. To move in the direction of arrow B. Thus, as shown in FIG. 1, even if the amount of entry of the fin tip of the stirring member 6A (6B) into the developing container 5 changes, the amount of entry can be reduced in the range of the two-way groove 10b to be engaged. Therefore, the resistance during stirring can be reduced.
【0032】また、現像容器を大きくする場合、成形条
件によってその底部が膨らむ等の変形を伴うことがあ
る。しかし本実施の形態のように、攪拌部材のフィンが
径方向に移動するのように容器の内壁面の形状に合わせ
て追従するので、このような多少の変形であっても無視
できるため、現像容器の生産性が向上し、安価に作るこ
とができる。 (第2の実施の形態)図5は第2の実施の形態を示す。Further, when the size of the developing container is increased, deformation such as swelling of the bottom may be accompanied by molding conditions. However, as in the present embodiment, the fins of the stirring member follow the shape of the inner wall surface of the container so as to move in the radial direction. The productivity of the container is improved and the container can be manufactured at low cost. (Second Embodiment) FIG. 5 shows a second embodiment.
【0033】上記の第1の実施の形態では、攪拌部材6
A(6B)を構成するフィン部を1枚で構成している
が、本実施の形態では、図5に示すように、フィン部及
びフィン部の端部に設けられるボス部10で構成される
攪拌部を複数設け、それぞれの攪拌部が独立に移動でき
るようにしたものである。この場合、撹拌軸11は全域
で2方取りされており、ボス部10を軸端から装着する
ものである。In the first embodiment, the stirring member 6
A (6B) is composed of a single fin, but in the present embodiment, as shown in FIG. 5, it is composed of a fin and a boss 10 provided at an end of the fin. A plurality of stirrers are provided so that each stirrer can move independently. In this case, the stirring shaft 11 is taken in two directions in the whole area, and the boss 10 is mounted from the shaft end.
【0034】弾性部材12はバネの他、ボス部10の軸
穴10a内で樹脂成形して得るようにしても良い。この
ように複数の攪拌部に分割すれば、現像容器の成形時の
変形が軸方向に部分的に起こっていても、その部分だけ
が変位し追従するため、より精度良く摺擦でき、現像剤
の搬送不良(搬送残り)も無くすことができる。また、
撹拌部が現像容器内壁に当接し撓む際の変形抵抗も小さ
くできる。The elastic member 12 may be obtained by molding a resin in the shaft hole 10a of the boss 10 in addition to the spring. By dividing the developing container into a plurality of agitating portions in this way, even if the deformation of the developing container at the time of molding partially occurs in the axial direction, only the portion is displaced and follows, so that the developing container can be rubbed more accurately, and (Transfer residual) can be eliminated. Also,
The deformation resistance when the agitating section abuts on the inner wall of the developing container and bends can be reduced.
【0035】[0035]
【発明の効果】以上説明したように、本発明によれば、
現像剤収納容器5の底面を平坦面として従来あった底面
の凹凸を少なくすることができ、現像剤を大容量化して
も現像装置をコンパクトにすることができる。As described above, according to the present invention,
By making the bottom surface of the developer storage container 5 flat, it is possible to reduce the unevenness of the bottom surface which has been conventionally used, and to make the developing device compact even if the capacity of the developer is increased.
【0036】また、現像剤攪拌手段の現像剤収納容器に
対する侵入量を加減できるため、撹拌時の変形に要する
抵抗を小さくでき、撹拌負荷を軽減できる。Also, since the amount of the developer stirring means entering the developer container can be adjusted, the resistance required for deformation during stirring can be reduced and the stirring load can be reduced.
【図1】第1の実施の形態の現像装置全体を示す断面
図。FIG. 1 is a cross-sectional view illustrating an entire developing device according to a first embodiment.
【図2】第1の実施の形態を示す撹拌部材の斜視図。FIG. 2 is a perspective view of a stirring member according to the first embodiment.
【図3】第1の実施の形態を示す撹拌部材の断面図。FIG. 3 is a sectional view of a stirring member according to the first embodiment.
【図4】第1の実施の形態を示す撹拌部材の断面図。FIG. 4 is a cross-sectional view of the stirring member according to the first embodiment.
【図5】第2の実施の形態を示す撹拌部材の断面図。FIG. 5 is a cross-sectional view of a stirring member according to a second embodiment.
【図6】従来の現像装置全体を示す断面図。FIG. 6 is a cross-sectional view illustrating the entire conventional developing device.
1…感光体 2…現像スリーブ 4…開口部 5…現像容器 6…撹拌部材 9…現像部 10…撹拌部 11…撹拌軸 12…弾性部材 DESCRIPTION OF SYMBOLS 1 ... Photoconductor 2 ... Developing sleeve 4 ... Opening 5 ... Developing container 6 ... Stirring member 9 ... Developing part 10 ... Stirring part 11 ... Stirring shaft 12 ... Elastic member
───────────────────────────────────────────────────── フロントページの続き (72)発明者 藁谷 強 東京都大田区下丸子3丁目30番2号 キヤ ノン株式会社内 (72)発明者 深津 正義 東京都大田区下丸子3丁目30番2号 キヤ ノン株式会社内 (72)発明者 緒方 敦史 東京都大田区下丸子3丁目30番2号 キヤ ノン株式会社内 (72)発明者 荒木 友行 東京都大田区下丸子3丁目30番2号 キヤ ノン株式会社内 Fターム(参考) 2H077 AB03 AB04 AB18 BA08 FA21 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tsuyoshi Waratani 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Masayoshi Fukatsu 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon (72) Inventor Atsushi Ogata 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Inventor Tomoyuki Araki 3-30-2, Shimomaruko 3-chome, Ota-ku, Tokyo Canon Inc. F-term (reference) 2H077 AB03 AB04 AB18 BA08 FA21
Claims (8)
記現像剤収納容器の内部で回転可能に支持され、前記現
像剤収納容器内の現像剤を撹拌しながら前方の現像部に
現像剤を搬送する現像剤撹拌搬送手段とを有し、前記現
像剤撹拌搬送手段が前記現像剤収納容器の内壁と当接す
る現像装置において、 前記現像剤撹拌搬送手段は、前記現像剤収納容器の内壁
との当接により、径方向内側に変位可能としたことを特
徴とする現像装置。A developer container for storing a developer; a developer container rotatably supported inside the developer container, and stirring the developer in the developer container in a front developing section while stirring the developer; And a developer stirring and conveying means for conveying the developer, wherein the developer stirring and conveying means abuts on an inner wall of the developer accommodating container, wherein the developer stirring and conveying means comprises an inner wall of the developer accommodating container. A developing device that can be displaced radially inward by contact with the developing device.
前記回転軸に取り付けられる撹拌部材本体とから構成さ
れ、前記撹拌部材本体が前記回転軸に対し、径方向内側
に変位可能としたことを特徴とする請求項1に記載の現
像装置。2. The developer stirring / transporting means includes: a rotating shaft;
The developing device according to claim 1, further comprising: a stirring member main body attached to the rotation shaft, wherein the stirring member main body can be displaced radially inward with respect to the rotation shaft.
回転軸に取り付けられる複数の攪拌部材本体とから構成
され、前記複数の攪拌部材が個々に前記回転軸に対し、
径方向内側に変位可能としたことを特徴とする請求項1
に記載の現像装置。3. The developer stirring means includes a rotating shaft and a plurality of stirring member main bodies attached to the rotating shaft, and the plurality of stirring members individually correspond to the rotating shaft.
2. The device according to claim 1, wherein the movable member can be displaced radially inward.
3. The developing device according to claim 1.
容器内に前後方向に複数配置されたことを特徴とする請
求項1、2または3に記載の現像装置。4. The developing device according to claim 1, wherein a plurality of the developer stirring means are arranged in the front and rear direction in the developer storage container.
された形状を有し、この部分で前記攪拌部材本体に軸回
りに回転不能で、かつ径方向に移動可能に嵌合し、弾性
部材により常時径方向外側に向けて押圧されていること
を特徴とする請求項2、3または4に記載の現像装置。5. The rotary shaft has a shape in which at least a part of the rotary shaft is bilaterally formed, and is fitted to the stirring member main body at this portion so as to be non-rotatable about the axis and movably in the radial direction. The developing device according to claim 2, wherein the developing device is constantly pressed radially outward by a member.
したことを特徴とする請求項1ないし5のいずれか一つ
に記載の現像装置。6. The developing device according to claim 1, wherein the bottom surface of the developer container is a flat surface.
底面との繋ぎ部分は、前記現像剤攪拌手段との当接で、
該現像剤攪拌手段を徐々に径方向内側に変位させる曲面
に形成されていることを特徴とする請求項1ないし6の
いずれか一つに記載の現像装置。7. A connecting portion between a wall surface and a bottom surface in the front-rear direction of the developer accommodating container is brought into contact with the developer stirring means,
7. The developing device according to claim 1, wherein said developer stirring means is formed on a curved surface which gradually displaces radially inward.
が線対称形状に形成されていることを特徴とする請求項
1ないし7のいずれか一つに記載の現像装置。8. The developing device according to claim 1, wherein the developer container has a front-rear wall surface formed in a line-symmetrical shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26847199A JP2001092224A (en) | 1999-09-22 | 1999-09-22 | Developing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26847199A JP2001092224A (en) | 1999-09-22 | 1999-09-22 | Developing machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001092224A true JP2001092224A (en) | 2001-04-06 |
Family
ID=17458973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP26847199A Pending JP2001092224A (en) | 1999-09-22 | 1999-09-22 | Developing machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2001092224A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7224925B2 (en) | 2004-09-08 | 2007-05-29 | Canon Kabushiki Kaisha | Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method |
-
1999
- 1999-09-22 JP JP26847199A patent/JP2001092224A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7224925B2 (en) | 2004-09-08 | 2007-05-29 | Canon Kabushiki Kaisha | Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method |
US7349657B2 (en) | 2004-09-08 | 2008-03-25 | Canon Kabushiki Kaisha | Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method |
US7412193B2 (en) | 2004-09-08 | 2008-08-12 | Canon Kabushiki Kaisha | Developer feeding member, developing apparatus, process cartridge and developer feeding member mounting method |
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