JPH11242377A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPH11242377A JPH11242377A JP10045226A JP4522698A JPH11242377A JP H11242377 A JPH11242377 A JP H11242377A JP 10045226 A JP10045226 A JP 10045226A JP 4522698 A JP4522698 A JP 4522698A JP H11242377 A JPH11242377 A JP H11242377A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- developing
- unit
- developing device
- transport
- 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
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はファクシミリ、プリ
ンタ、複写機等の画像形成装置内の現像装置に関し、特
に複数の現像手段を有するカラー画像形成装置の現像装
置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 in an image forming apparatus such as a facsimile, a printer, and a copying machine, and more particularly to a developing device for a color image forming apparatus having a plurality of developing means.
【０００２】[0002]
【従来の技術】従来のカラー画像形成装置には、例えば
単一のポリゴンモータにより各色（イエロー、マゼン
タ、シアン、ブラック）毎に走査して単一の感光体ドラ
ム上にカラー画像を形成させて中間転写体に転写し、中
間転写体に全色のトナーが載った後に転写紙に転写する
中間転写方式、あるいは単一のポリゴンモータにより各
色毎に走査して単一の感光体ドラム上にカラー画像を形
成させて直接転写体に巻き付けた転写紙に各色毎に転写
し転写紙に全色のトナーが載った後に排紙する直接転写
方式等が提案されている。2. Description of the Related Art In a conventional color image forming apparatus, for example, a single polygon motor scans each color (yellow, magenta, cyan, black) to form a color image on a single photosensitive drum. Intermediate transfer method, in which all color toners are transferred to the intermediate transfer member and transferred to transfer paper after the intermediate transfer member is loaded, or color is scanned on a single photosensitive drum by scanning each color with a single polygon motor There has been proposed a direct transfer method in which an image is formed, transferred for each color on a transfer paper wound directly around a transfer body, and all colors of toner are loaded on the transfer paper and then discharged.
【０００３】[0003]
【発明が解決しようとする課題】ところが、従来のカラ
ー画像形成装置では、各色毎の現像装置を設ける必要が
あるために装置の小型化が難しく、かつ現像装置のトナ
ー補給容器が複数あるために交換が難しくなってしまう
という問題があった。However, in the conventional color image forming apparatus, it is necessary to provide a developing device for each color, so that it is difficult to reduce the size of the device, and the developing device has a plurality of toner supply containers. There was a problem that replacement became difficult.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記問題に鑑
みてなされたものであり、トナーを下方に設けたスリッ
トから補給ローラの回転により落下補給するトナー補給
容器と、トナー補給容器から供給されるトナーを搬送す
る搬送部と、搬送部から搬送されたトナーの攪拌を行っ
た後に像担持体への現像を行う現像部とを具備してなる
現像装置において、現像部の最大充填時のトナー上面位
置が搬送部の上面位置よりも上方となるように現像部を
形成した現像装置としたものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a toner replenishing container for replenishing toner from a slit provided below by rotating a replenishing roller and a toner replenishing container. A developing unit that transports the toner to be transported, and a developing unit that develops the image carrier after stirring the toner transported from the transport unit. This is a developing device in which the developing unit is formed such that the upper surface position of the toner is higher than the upper surface position of the transport unit.
【０００５】このような構成により、現像装置の高さを
抑えることができ、現像装置を略垂直状に配列して整列
密度を高める構成となる。[0005] With such a configuration, the height of the developing device can be suppressed, and the developing device is arranged substantially vertically to increase the alignment density.
【０００６】さらに、スリットが現像部の上面よりも下
方となるように現像部を形成し、現像部とトナー補給容
器の上面、および搬送部とトナー補給容器の下面が略同
一平面状の現像装置としたものである。Further, the developing unit is formed such that the slit is lower than the upper surface of the developing unit, and the developing unit and the upper surface of the toner supply container, and the transport unit and the lower surface of the toner supply container are substantially coplanar. It is what it was.
【０００７】このような構成により、トナー補給容器を
現像部より装置本体に対して垂直方向に突出しない形状
とすることができ、現像装置の整列密度をより高める構
成となる。With such a configuration, the toner supply container can be formed so as not to protrude from the developing section in a direction perpendicular to the apparatus main body, and the arrangement density of the developing devices is further increased.
【０００８】さらに、トナー補給容器が略水平方向に着
脱可能な現像装置としたものである。Further, the toner supply container is a developing device which can be attached and detached in a substantially horizontal direction.
【０００９】このような構成により、現像装置を略垂直
状に配列して整列密度を高めてもトナー補給容器の交換
を個別に容易に行える構成となる。With such a configuration, the toner supply containers can be easily replaced individually even if the developing devices are arranged substantially vertically and the alignment density is increased.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施例を図面を用
いて説明する。図１は、本発明の現像装置を配設したカ
ラー画像形成装置を示す構成図であり、転写紙収納カセ
ット１を下方に配設し、排紙収納トレイ２を上方に配設
し、搬送路３を略垂直に形成し、装置の略中央に感光体
ドラム４、感光体ドラム４の下方に光走査手段ユニット
５、感光体ドラム周辺の搬送路３方向との反対位置に４
つの現像器６ａ〜６ｄを略垂直方向に配設し、感光体ド
ラムの上方に中間転写ドラム７、中間転写ドラム７の上
方の搬送路３中に定着器８を配設して構成する。このよ
うな構成により、光走査ユニット５で画像信号に基づき
各色毎に走査して感光体ドラム４に静電潜像を形成さ
せ、現像器６ａ〜６ｄで各色毎に感光体ドラム４上にカ
ラー画像を形成させて中間転写ドラム７に転写し、中間
転写ドラム７に４色のトナーが載った後に転写紙収納カ
セット１から搬送路３に搬送されている転写紙に転写
し、転写紙を定着器８の加圧ローラ・加熱ローラでトナ
ーを定着させて、排紙収納トレイ２に排紙する。図１の
構成によると、無駄なスペースが無く、カラー画像形成
装置全体を小型化できる。しかも、定着器８と現像器６
ａ〜６ｄとの間の距離を置くことができるために、現像
器６ａ〜６ｄ内のトナーが定着器の熱による影響を防ぐ
構成となる。また、図１のカラー画像形成装置は、底面
に転写紙受入口Ｂを設けているために、カラー画像形成
装置の下に給紙装置（不図示）を配設することも可能と
なる。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing a color image forming apparatus provided with a developing device of the present invention, in which a transfer paper storage cassette 1 is provided below, a paper discharge storage tray 2 is provided above, and a transport path is provided. 3 is formed substantially vertically, a photoconductor drum 4 is provided substantially at the center of the apparatus, an optical scanning means unit 5 is provided below the photoconductor drum 4, and a photoconductor drum 4 is provided at a position opposite to the conveying path 3 around the photoconductor drum.
The three developing devices 6a to 6d are arranged in a substantially vertical direction, and the intermediate transfer drum 7 is provided above the photosensitive drum, and the fixing device 8 is provided in the transport path 3 above the intermediate transfer drum 7. With such a configuration, the optical scanning unit 5 scans each color based on the image signal to form an electrostatic latent image on the photosensitive drum 4, and the developing units 6a to 6d color the color on the photosensitive drum 4 for each color. An image is formed and transferred to the intermediate transfer drum 7, and after the four color toners are loaded on the intermediate transfer drum 7, the image is transferred from the transfer paper storage cassette 1 to the transfer paper being transported to the transport path 3, and the transfer paper is fixed. The toner is fixed by the pressure roller and the heating roller of the container 8, and is discharged to the discharge storage tray 2. According to the configuration of FIG. 1, there is no useless space, and the entire color image forming apparatus can be downsized. In addition, the fixing device 8 and the developing device 6
Since the distance between the developing devices 6a to 6d can be increased, the configuration is such that the toner in the developing devices 6a to 6d is prevented from being affected by the heat of the fixing device. Further, in the color image forming apparatus shown in FIG. 1, since the transfer paper receiving port B is provided on the bottom surface, a paper feeder (not shown) can be provided below the color image forming apparatus.
【００１１】現像器６ａ〜６ｄは、後述する構成により
構造薄肉化をはかり配置上の高さを極力抑えて略垂直状
に配列して整列密度を高めていることを特徴としてお
り、カラー画像形成装置の側面部の開閉扉Ａを開放すれ
ば、現像器６ａ〜６ｄの補給トナ−容器であるトナー貯
蔵部３９を水平方向から着脱できるように構成されてい
る。The developing units 6a to 6d are characterized in that they are arranged in a substantially vertical shape by increasing the thickness of the structure by minimizing the structure by the structure described later and are arranged substantially vertically to increase the alignment density. When the opening / closing door A on the side surface of the apparatus is opened, the toner storage unit 39 as a supply toner container for the developing units 6a to 6d can be detached from the horizontal direction.
【００１２】図２は、現像器６ａの構成図であり、図３
は、トナー貯蔵部３９を装着する状態を示す図であり、
図４は、図２の一部拡大図である。トナー補給容器であ
るトナー貯蔵部３９は搬送部３４と現像部３８から着脱
可能で、トナー貯蔵部３９は水平方向に着脱取り替え可
能な構造で、装着時は図３の矢印方向にスライドさせ
る。FIG. 2 is a block diagram of the developing device 6a, and FIG.
FIG. 4 is a diagram illustrating a state in which the toner storage unit 39 is mounted;
FIG. 4 is a partially enlarged view of FIG. The toner storage unit 39, which is a toner supply container, is detachable from the transport unit 34 and the developing unit 38, and the toner storage unit 39 has a structure that can be replaced in the horizontal direction, and is slid in the direction of the arrow in FIG.
【００１３】また、トナー貯蔵部３９からのトナー補給
口であるスリット３３を開閉するシャッタ−を備え、こ
のシャッターがトナー貯蔵部３９を装着する時に突起部
５００にトナー貯蔵部３９の先端角部が当接することに
よってスリット３３が開口されるように構成することに
より、トナーにより現像器を汚すことを防止することが
できる。Further, a shutter for opening and closing the slit 33 serving as a toner supply port from the toner storage unit 39 is provided. When the shutter mounts the toner storage unit 39, the tip corner of the toner storage unit 39 is attached to the projection 500. By configuring the slit 33 to be opened by the contact, it is possible to prevent the developer from being stained by the toner.
【００１４】トナーを補給する場合には、まずトナー貯
蔵部３９内で補給ロ−ラ３２の軸３１がモ−タからの駆
動を受けて回転することでスリット３２Ａにトナ−を送
り込み、トナ−をスリット３３を通して搬送部３４に送
り込みをしている。 搬送部３４には、第１の供給部材で
ある羽根付スクレ−パ３０を設け、羽根付スクレ−パ３
０の端部を弾性状に形成して回転させることによりトナ
ーを確実にすくい取ってスリット３３から落下するトナ
−を搬送部の壁面に当てながら水平方向に抱持搬送して
いる。 羽根付スクレ−パ３０の後工程には水平方向にトナーの
搬送力がある磁石ロ−ラ３５を有し、羽根付スクレ−パ
３０の回転方向と同方向に軸３５Ａを中心にトナーを供
給しながら回転し、搬送部の壁面に端部をトナーと摺擦
しながらトナ−を現像部３８へ抱持搬送している。 ま
た、磁石ロ−ラ３５から現像部３８に供給する供給口に
設けられたトナーの層厚規制をする手段３５１は、先端
が鋭角であり、カウンタ方向にすくい取るように現像器
の筐体で形成している。 磁石ロ−ラ３５は、複数極の磁
性を帯びたものが好ましい。To supply toner, first, the shaft 31 of the supply roller 32 is rotated by receiving a drive from the motor in the toner storage section 39, so that the toner is sent to the slit 32A, and the toner is supplied. Through the slit 33 to the transport unit 34. The transport unit 34 is provided with a bladed scraper 30 as a first supply member, and the bladed scraper 3 is provided.
By rotating the end of the transfer roller 0 in a resilient manner, the toner is reliably scooped and the toner falling from the slit 33 is held and conveyed in the horizontal direction while being brought into contact with the wall of the conveyance section. In the post-process of the bladed scraper 30, a magnet roller 35 having a toner conveying force in the horizontal direction is provided, and toner is supplied around the shaft 35A in the same direction as the rotation of the bladed scraper 30. The toner is held and conveyed to the developing unit 38 while rubbing the end of the toner on the wall surface of the conveying unit with the toner. The means 351 for regulating the layer thickness of the toner provided in the supply port for supplying the developing unit 38 from the magnet roller 35 has an acute end, and is provided with a housing of the developing device so as to scoop in the counter direction. Has formed. The magnet roller 35 preferably has a plurality of magnetic poles.
【００１５】現像部３８では、磁石ローラ３５が供給を
して送り受けたトナ−を現像ロ−ラ３７で磁石ローラ３
５と同方向に回転して搬送・攪拌している。 検知部３６
は、トナ−の量を透磁率型等のセンサで検知し、全体の
トナ−濃度の制御をしており、トナー濃度が低下すると
トナー貯蔵部３９からトナーを補給するように制御して
いる。In the developing section 38, the toner supplied and sent by the magnet roller 35 is transferred to the developing roller 37 by the developing roller 37.
5 is conveyed and stirred while rotating in the same direction. Detector 36
Detects the amount of toner with a sensor of a magnetic permeability type or the like, and controls the overall toner density. Control is performed so that toner is supplied from the toner storage unit 39 when the toner density decreases.
【００１６】本発明では、現像部３８の最大充填時のト
ナー上面位置が搬送部３４の上面位置よりも上方となっ
ているために、現像器６ａ〜６ｄの垂直方向の長さを抑
えることができ、かつ水平方向の長さを抑えることがで
きる構成となり、複数の現像器６ａ〜６ｄを略垂直状に
配列して整列密度を高めることができるために装置全体
の小型化が実現する。In the present invention, since the upper surface position of the toner at the time of the maximum filling of the developing unit 38 is higher than the upper surface position of the conveying unit 34, the length of the developing units 6a to 6d in the vertical direction can be suppressed. In addition, the length of the developing device can be reduced, and the plurality of developing devices 6a to 6d can be arranged in a substantially vertical shape to increase the alignment density.
【００１７】また、トナー補給口であるスリット３３の
高さが現像部３８の上面よりも下方とし、現像部３８と
トナー貯蔵部３９の上面、および搬送部３４とトナー貯
蔵部３９の下面を略同一平面状としているために、トナ
ー貯蔵部３９の先端を現像部３８の上面からスリット３
３までの高さ、後端を現像部３８の上面から下面までの
高さまで確保でき、このような高さでトナー貯蔵部３９
を構成すると現像器６ａ〜６ｄの上面および下面からト
ナー貯蔵部３９が垂直方向に突出しないために、現像器
の小型化が実現でき、装置全体の小型化が実現する。The height of the slit 33, which is a toner supply port, is lower than the upper surface of the developing unit 38, and the upper surfaces of the developing unit 38 and the toner storage unit 39 and the lower surfaces of the transport unit 34 and the toner storage unit 39 are substantially formed. Since the toner storage unit 39 is formed in the same plane, the slit 3
3 and a rear end from the upper surface to the lower surface of the developing unit 38 can be secured.
In this configuration, since the toner storage section 39 does not protrude vertically from the upper and lower surfaces of the developing devices 6a to 6d, the size of the developing device can be reduced, and the size of the entire apparatus can be reduced.
【００１８】また、トナー貯蔵部３９が略水平方向に着
脱可能であるために、各現像器６ａ〜６ｄのトナー貯蔵
部３９を交換する際に、各現像器６ａ〜６ｄ毎に容易に
行える。Further, since the toner storage section 39 is detachable in a substantially horizontal direction, the replacement of the toner storage section 39 of each of the developing devices 6a to 6d can be easily performed for each of the developing devices 6a to 6d.
【００１９】また、搬送部３４は、２つの搬送手段で水
平方向に搬送し、スリット３３側を羽根付きのスクレー
パ３０、現像部側を磁石ローラ３５で構成することによ
り、上述したような構成をとってもトナーの搬送効率が
良く、トナーの逆流防止にもつながり、現像部３８で安
定したトナー濃度を維持することとなる。The transport section 34 is transported in a horizontal direction by two transport means, and the slit 33 side is constituted by a scraper 30 with blades, and the developing section side is constituted by a magnet roller 35. The toner conveyance efficiency is very good, which leads to the prevention of toner backflow, and the developing unit 38 maintains a stable toner concentration.
【００２０】図５は、本実施例の現像器６ａを用いたト
ナー補給量特性を示す図であり、非磁性トナーと磁性ト
ナーのランニングテストの結果を示す。なお、符号Ａは
磁性トナーの特性で、符号Ｂは非磁性トナーの特性であ
り、Ｔ／Ｃ（％）はトナーの濃度を示す値であり、０％
はキャリアのみの状態を示す。図５より、磁性トナーを
使用した場合には、トナー濃度が多くなってもトナー補
給量を維持できることが判る。FIG. 5 is a graph showing a toner replenishing amount characteristic using the developing device 6a of the present embodiment, and shows a result of a running test of a non-magnetic toner and a magnetic toner. Symbol A indicates the characteristic of the magnetic toner, symbol B indicates the characteristic of the non-magnetic toner, T / C (%) is a value indicating the toner concentration, and 0%
Indicates a state of only the carrier. FIG. 5 shows that when the magnetic toner is used, the toner supply amount can be maintained even when the toner concentration increases.
【００２１】なお、本実施例では、中間転写ドラム７を
用いたカラー画像形成装置の場合を説明したが、直接転
写ドラムを用いたカラー画像形成装置、あるいはドラム
ではなくベルトを用いたカラー画像形成装置でも同様の
効果を得ることができる。In this embodiment, the case of a color image forming apparatus using the intermediate transfer drum 7 has been described. However, a color image forming apparatus using a direct transfer drum, or a color image forming apparatus using a belt instead of a drum. The same effect can be obtained with the device.
【００２２】また、本実施例では、スリット３３側の搬
送手段として羽根付スクレ−パ３０を用いた場合を説明
したが、他に水平に搬送するもの手段であればよく、例
えば図６に示すように、供給スイ−プロ−ラ３０1 を用
いた場合でも同様の効果を得ることができる。In this embodiment, the case where the scraper 30 with the wings is used as the conveying means on the side of the slit 33 has been described. However, any other means for conveying horizontally may be used, for example, as shown in FIG. As described above, the same effect can be obtained even when the supply swivel 301 is used.
【００２３】供給スイ−プロ−ラ３０1 は、断面形状は
楕円形であり、長手方向に延びた軸状のロ−ラである。
供給スイープロ−ラ３０１は、断面形状が楕円形である
ためにトナーを確実にすくい取って回転しながら断面の
楕円形状の頂点長手部を中心にしてスリット３３から落
下するトナ−を容器壁に当てながら抱持供給移動してい
る。 トナ−回収スクレ−パの働きをする第１の掻き取り
部材３４２は弾性を有しており、その先端部は、スイ−
プロ−ラ３０1 の断面形状の頂点に圧接するように配設
している。 これは、トナ−を送りこんだあとに逆流しな
いように弁の役割をして、スイ−プロ−ラ３０1 の表面
に付着したトナ−を掻き取る役割をする。また、スイ−
プロ−ラ３０1 の下部にはトナーの逆流防止をする逆流
防止部材３４１が配設されている。 これは現像部３８の
キャリアとトナ−の混ざったトナーが静止時や輸送時に
供給部に洩れる場合を考慮して、その逆流を防止するた
めに弾性材料でスイ−プロ−ラ３０1 に圧接するように
している。The supply sweeper 301 has an elliptical cross section and is an axial roller extending in the longitudinal direction.
Since the supply sweeper 301 has an elliptical cross-sectional shape, the toner is surely scooped and rotated, and the toner falling from the slit 33 around the vertex of the vertex of the elliptical cross-section is applied to the container wall while rotating. While holding the supply is moving. The first scraping member 342 functioning as a toner collecting scraper has elasticity, and its tip is formed by a sweeper.
It is disposed so as to be in pressure contact with the vertex of the cross-sectional shape of the profiler 301. This serves as a valve so as not to flow backward after the toner has been sent in, and serves to scrape off the toner attached to the surface of the swirler 301. In addition,
A backflow prevention member 341 for preventing the backflow of toner is provided below the roller 301. In consideration of the case where the toner in which the carrier and the toner of the developing section 38 are mixed is leaked to the supply section at the time of rest or transportation, the elastic material is pressed against the swivel roller 301 to prevent the backflow. I have to.
【００２４】[0024]
【発明の効果】以上説明したように、本発明のカラー画
像形成装置によれば、現像部の最大充填時のトナー上面
位置が搬送部の上面位置よりも上方にすることにより、
さらにスリットが現像部の上面よりも下方で、現像部と
トナー補給容器の上面、および搬送部とトナー補給容器
の下面を略同一平面状にすることにより、複数個を配設
する場合でも略垂直状に配列して整列密度を高められる
現像装置を提供することができる。As described above, according to the color image forming apparatus of the present invention, the toner upper surface position at the time of the maximum filling of the developing unit is higher than the upper surface position of the conveying unit.
Further, the slits are lower than the upper surface of the developing unit, and the upper surface of the developing unit and the toner supply container, and the lower surface of the transport unit and the toner supply container are made substantially flush with each other, so that even when a plurality of units are provided, the slits are substantially vertical. It is possible to provide a developing device which can be arranged in a matrix to increase the alignment density.
【図１】本発明の現像装置を含んだカラー画像形成装置
を示す断面図である。FIG. 1 is a sectional view showing a color image forming apparatus including a developing device of the present invention.
【図２】本発明の現像装置を示す断面図である。FIG. 2 is a sectional view showing a developing device of the present invention.
【図３】本発明の現像装置を示す断面図である。FIG. 3 is a cross-sectional view illustrating a developing device of the present invention.
【図４】本発明の現像装置を示す一部拡大断面図であ
る。FIG. 4 is a partially enlarged sectional view showing a developing device of the present invention.
【図５】本発明の現像装置を使用した特性を示す図であ
る。FIG. 5 is a diagram showing characteristics using the developing device of the present invention.
【図６】本発明の他の実施例による現像装置を示す一部
拡大断面図である。FIG. 6 is a partially enlarged cross-sectional view illustrating a developing device according to another embodiment of the present invention.
１：転写紙収納カセット ２：排紙収納トレイ ３：搬送路 ４：感光体ドラム ５：光走査手段ユニット ６ａ〜６ｄ：現像器 ７：中間転写ドラム ８：定着器 ３０：羽根付スクレ−パ ３２：トナ−補給ロ−ラ ３３：スリット ３４：搬送部 ３５：磁石ロ−ラ ３８：現像部 ３９：トナー貯蔵部 1: transfer paper storage cassette 2: discharge storage tray 3: transport path 4: photosensitive drum 5: optical scanning unit 6a to 6d: developing unit 7: intermediate transfer drum 8: fixing unit 30: scraper with blade 32 : Toner supply roller 33: slit 34: transport unit 35: magnet roller 38: developing unit 39: toner storage unit
Claims (5)
ーラの回転により落下補給するトナー補給容器と、該ト
ナー補給容器から供給されるトナーを搬送する搬送部
と、該搬送部から搬送されたトナーの攪拌を行った後に
像担持体への現像を行う現像部とを具備してなる現像装
置において、前記現像部の最大充填時のトナー上面位置
が前記搬送部の上面位置よりも上方となるように前記現
像部を形成したことを特徴とする現像装置。A toner supply container configured to supply toner by dropping a toner from a slit provided below the toner supply roller by rotation of a supply roller; a transport unit configured to transport toner supplied from the toner supply container; and a toner transported from the transport unit. And a developing unit for performing development on the image carrier after performing the agitation, so that the toner upper surface position of the developing unit at the time of maximum filling is higher than the upper surface position of the transport unit. A developing unit formed with the developing unit.
方となるように前記現像部を形成し、前記現像部とトナ
ー補給容器の上面を略同一平面状とし、前記搬送部とト
ナー補給容器の下面を略同一平面状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 developing unit is formed so that the slit is located below the upper surface of the developing unit. The upper surface of the developing unit and the toner replenishing container are substantially flush with each other. 2. The developing device according to claim 1, wherein a lower surface of the developing device is substantially coplanar.
能に構成したことを特徴とする請求項２に記載の現像装
置。3. The developing device according to claim 2, wherein said toner supply container is configured to be detachable in a substantially horizontal direction.
ーを水平方向に搬送し、後工程となる現像部側の搬送手
段を２極以上の磁性を有する磁石ローラで構成したこと
を特徴とする請求項１または２に記載の現像装置。4. The transporting unit transports toner in a horizontal direction by two transporting units, and a transporting unit on a developing unit side, which is a post-process, is configured by a magnet roller having two or more poles of magnetism. The developing device according to claim 1.
ーを水平方向に搬送し、トナー補給容器側の搬送手段を
羽根付きのスクレーパで、現像部側の搬送手段を２極以
上の磁性を有する磁石ローラで構成したことを特徴とす
る請求項１または２に記載の現像装置。5. The transport section transports the toner in a horizontal direction by two transport sections, the transport section on the toner replenishing container side is a scraper with a blade, and the transport section on the developing section side is magnetized by two or more poles. The developing device according to claim 1, wherein the developing device comprises a magnet roller having the magnetic roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10045226A JPH11242377A (en) | 1998-02-26 | 1998-02-26 | Developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10045226A JPH11242377A (en) | 1998-02-26 | 1998-02-26 | Developing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11242377A true JPH11242377A (en) | 1999-09-07 |
Family
ID=12713363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10045226A Pending JPH11242377A (en) | 1998-02-26 | 1998-02-26 | Developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11242377A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04240661A (en) * | 1991-01-24 | 1992-08-27 | Konica Corp | Image forming device |
| JPH05307324A (en) * | 1991-05-17 | 1993-11-19 | Canon Inc | Image forming device and process cartridge freely loaded and unloaded therein |
| JPH06314027A (en) * | 1993-01-13 | 1994-11-08 | Ricoh Co Ltd | Cleaning/toner-supplying device and electrophotographic device |
| JPH0830104A (en) * | 1994-07-14 | 1996-02-02 | Ricoh Co Ltd | Developing device |
| JPH09222785A (en) * | 1996-02-18 | 1997-08-26 | Ricoh Co Ltd | Toner cartridge |
-
1998
- 1998-02-26 JP JP10045226A patent/JPH11242377A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04240661A (en) * | 1991-01-24 | 1992-08-27 | Konica Corp | Image forming device |
| JPH05307324A (en) * | 1991-05-17 | 1993-11-19 | Canon Inc | Image forming device and process cartridge freely loaded and unloaded therein |
| JPH06314027A (en) * | 1993-01-13 | 1994-11-08 | Ricoh Co Ltd | Cleaning/toner-supplying device and electrophotographic device |
| JPH0830104A (en) * | 1994-07-14 | 1996-02-02 | Ricoh Co Ltd | Developing device |
| JPH09222785A (en) * | 1996-02-18 | 1997-08-26 | Ricoh Co Ltd | Toner cartridge |
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