JPH0980906A - Developing device - Google Patents
Developing deviceInfo
- Publication number
- JPH0980906A JPH0980906A JP23997195A JP23997195A JPH0980906A JP H0980906 A JPH0980906 A JP H0980906A JP 23997195 A JP23997195 A JP 23997195A JP 23997195 A JP23997195 A JP 23997195A JP H0980906 A JPH0980906 A JP H0980906A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- developing device
- developing roller
- developing
- cutout portion
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プリンタ、複写
機、ファクシミリ等の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 for an image forming apparatus such as a printer, a copying machine, a facsimile and the like.
【０００２】[0002]
【従来の技術】従来、画像形成装置の現像装置におい
て、像担持体に対向配置され、該像担持体上に形成され
た潜像にトナーを供給する現像ローラと、該現像ローラ
にトナーを供給するトナー供給手段と、前記現像ローラ
に供給されたトナーを規制するトナー規制部材と、前記
現像ローラの両側に設けられた側部シール部材とを有す
る装置は知られている。この種の現像装置においては、
ブレード等のトナー規制部材によりトナーの層厚を規制
した際、その規制によって除かれたトナーがブレードに
沿って現像ローラの端部に拡がり、該部にサイドシール
を設けてもサイドシールと現像ローラの間を通り抜けて
装置外に漏れて飛散するという問題があった。2. Description of the Related Art Conventionally, in a developing device of an image forming apparatus, a developing roller, which is arranged to face an image carrier and supplies toner to a latent image formed on the image carrier, and a toner is supplied to the developing roller. There is known an apparatus including a toner supply unit for controlling the toner, a toner regulating member for regulating the toner supplied to the developing roller, and side seal members provided on both sides of the developing roller. In this type of developing device,
When the toner layer thickness is regulated by a toner regulating member such as a blade, the toner removed by the regulation spreads along the blade to the end portion of the developing roller, and even if a side seal is provided on the portion, the side seal and the developing roller are provided. There was a problem that it would pass through the space and leak out of the device and be scattered.
【０００３】このような問題を軽減するため、従来より
種々の現像装置が提案されている。例えば、特開昭６３
−９８６７７号公報にはローラ端部に帯電部材を設けて
現像バイアスを印加しても飛翔したり脱落しないように
構成した現像装置が開示されている。また、実開平２−
６９３４８号公報にはブレード部材の現像ローラ端部が
手前側に湾曲させ、ブレード部材でトナーを堰き止める
ように構成した現像装置が開示されている。さらに、特
開平１−２７７８６８号公報にはトナー供給ローラの端
部径を拡大させて現像ローラに接触させ、トナー供給を
押さえるように構成した現像装置が開示されている。さ
らにまた、実開平１−１６４４５６号公報にはサイドシ
ール部材と層形成部材と間の隙間を弾性シール部材で埋
めるように構成した現像装置が開示されている。さらに
また、実開平２−８１５４６号公報にはローラ端部をシ
ール部材で覆う現像装置が開示されている。In order to reduce such problems, various developing devices have been proposed in the past. For example, JP-A-63
Japanese Unexamined Patent Publication (Kokai) No. 98677 discloses a developing device in which a charging member is provided at an end portion of a roller so as not to fly or fall off even when a developing bias is applied. In addition,
Japanese Patent No. 69348 discloses a developing device in which the developing roller end portion of the blade member is curved toward the front side and the blade member blocks the toner. Further, Japanese Patent Application Laid-Open No. 1-277868 discloses a developing device configured to enlarge the end diameter of the toner supply roller so that the toner supply roller is brought into contact with the developing roller to suppress the toner supply. Furthermore, Japanese Utility Model Publication No. 1-164456 discloses a developing device configured to fill a gap between a side seal member and a layer forming member with an elastic seal member. Furthermore, Japanese Utility Model Laid-Open No. 2-81546 discloses a developing device in which a roller end is covered with a seal member.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上記し
た装置では現像装置組立時に発生し得る各部材の微小な
隙間からトナーが装置外へ漏れ出てしまうことあった。
そこで、トナーが通り抜けられる隙間が生ずることがな
いように、部品精度を上げることや、部品形状を複雑に
する等の手段を施すことが考えられるが、いずれの手段
もトナー漏れを完全になくすことは不可能であり、各部
品のコストが嵩む分だけ好ましくないことになる。However, in the above-described apparatus, toner sometimes leaks out of the apparatus through minute gaps between the respective members which may occur when the developing apparatus is assembled.
Therefore, it is conceivable to increase the precision of the parts or to complicate the shape of the parts so that there is no gap through which the toner can pass. Is impossible, and the cost of each component increases, which is not preferable.
【０００５】そこで、特開平３−１５５５７６号公報に
は侵入したトナーを現像ローラ端部に設けた別部材内に
一端導入し、さらに別途設けたトナー受け部材へと導
き、そこに貯留するという方法も提案されているが、メ
ンテナンスが必要という煩わしさがある。In view of this, Japanese Patent Laid-Open No. 3-155576 discloses a method in which the invading toner is once introduced into another member provided at the end of the developing roller, guided to a toner receiving member provided separately, and stored there. Has been proposed, but it has the trouble of requiring maintenance.
【０００６】本発明は、上記した従来の不具合を解消
し、簡単な構成でトナー飛散を防止でき、トナー飛散に
よる他機能の低下や、画像へのトナー落ちを低減した現
像装置を提供することを目的とする。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and provides a developing device capable of preventing toner scattering with a simple structure, reducing other functions due to toner scattering, and reducing toner drop on an image. To aim.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
に本発明は、像担持体に対向配置され、該像担持体上に
形成された潜像にトナーを供給する現像ローラと、該現
像ローラにトナーを供給するトナー供給手段と、前記現
像ローラに供給されたトナーを規制するトナー規制部材
と、前記現像ローラの両側に設けられた側部シール部材
とを有する現像装置において、前記側部シール部材にト
ナーを受け入れる切り欠き部が設けられていることを特
徴としている。In order to achieve the above object, the present invention is directed to a developing roller which is arranged to face an image carrier and supplies toner to a latent image formed on the image carrier, and the developing roller. In the developing device, there is provided a toner supply unit that supplies toner to the roller, a toner regulating member that regulates the toner supplied to the developing roller, and side seal members provided on both sides of the developing roller. It is characterized in that the seal member is provided with a notch portion for receiving the toner.
【０００８】なお、本発明は前記切り欠き部内の前記現
像ローラの回転方向における下流の辺部側に前記現像ロ
ーラに当接してトナーを掻き落とす掻き落とし部材を設
けると、効果的である。In the present invention, it is effective to provide a scraping member for scraping off the toner by coming into contact with the developing roller on the downstream side in the rotation direction of the developing roller in the cutout portion.
【０００９】また、本発明は前記側部シール部材が取り
付けられる現像装置のケーシングにて前記切り欠き部の
前記現像ローラの回転方向における下流の辺部近傍位置
に、該部分の側部シール部材を前記現像ローラ側に押圧
するための凸部が形成されていると、効果的である。Further, according to the present invention, in the casing of the developing device to which the side seal member is attached, the side seal member of the portion is provided at a position near the side of the cutout portion on the downstream side in the rotation direction of the developing roller. It is effective that a convex portion for pressing the developing roller side is formed.
【００１０】さらにまた、本発明は前記ケーシングに前
記切り欠き部と連通し、かつ現像装置内側に通じる貫通
穴を形成し、該貫通穴と前記切り欠き部にまたがるトナ
ーガイド部材を配設すると、効果的である。Further, according to the present invention, a through hole communicating with the cutout portion and communicating with the inside of the developing device is formed in the casing, and a toner guide member extending over the through hole and the cutout portion is arranged. It is effective.
【００１１】[0011]
【実施例】以下、本発明の実施例に添付図面に従って説
明する。図１は、本発明に係る現像装置を備えた画像形
成装置の主要部を示す概略構成図であり、本図に基づい
て画像形成部の構成について簡単に説明する。Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic configuration diagram showing a main part of an image forming apparatus provided with a developing device according to the present invention, and the configuration of the image forming part will be briefly described based on this figure.
【００１２】符号１は、像担持体としてのドラム状の感
光体であり、この感光体１の回りにはその回転方向に帯
電器２、光学系（図示せず）、現像装置４、転写・分離
装置５、クリーニング装置６及び除電ランプ７等の画像
形成構成ユニットが順次配置されている。そして、感光
体１が時計方向に回転されるとき、帯電器２によって表
面が一様に帯電され、その帯電部分に例えば画素信号に
基づいたレーザ光線３が光学系より射出されて静電潜像
が形成される。この静電潜像は、現像装置４によって顕
像化され、転写・分離装置５の作用下のもとに転写材に
転写させた後、分離される。転写・分離後の感光体１
は、クリーニング装置６によって残留トナーが清掃さ
れ、除電ランプ７によって不要電荷が除電された後、次
の画像形成に備えられる。Reference numeral 1 denotes a drum-shaped photoconductor as an image carrier, and around the photoconductor 1, a charger 2, an optical system (not shown), a developing device 4, a transfer / transfer device are arranged in the rotation direction. The image forming constituent units such as the separating device 5, the cleaning device 6 and the charge eliminating lamp 7 are sequentially arranged. When the photoconductor 1 is rotated in the clockwise direction, the surface is uniformly charged by the charger 2, and a laser beam 3 based on, for example, a pixel signal is emitted from the optical system to the charged portion, so that the electrostatic latent image is formed. Is formed. This electrostatic latent image is visualized by the developing device 4, transferred to a transfer material under the action of the transfer / separation device 5, and then separated. Photoconductor 1 after transfer and separation
Is prepared for the next image formation after the residual toner is cleaned by the cleaning device 6 and unnecessary charges are removed by the charge removing lamp 7.
【００１３】画像形成部の１ユニットである現像装置４
は、図２及び図３に示すように、感光体１に対向配置さ
れ、反時計方向に回転される現像ローラ１０と、トナー
がトナー撹拌部材１１とマイラー（商品名）を備えたト
ナー搬送部材１２とから構成される撹拌搬送手段部材１
３と、トナーを帯電しつつ現像ローラ１０に供給するト
ナー供給手段としてのトナー供給ローラ１４と、現像ロ
ーラ１０に供給されたトナーを規制するトナー規制部材
としての薄層ブレード１５とを有し、現像ローラ１０の
軸線方向の幅は画像幅に広く設定されているが、トナー
供給ローラ１４の幅は略画像幅に設定されている。ま
た、薄層ブレード１５はブレードホルダ１６に支持さ
れ、ブレードホルダ１６は現像装置４のケーシング２０
に取り付けられている。Developing unit 4 which is one unit of the image forming section
As shown in FIGS. 2 and 3, the developing roller 10 is arranged to face the photoconductor 1 and is rotated in the counterclockwise direction, and the toner conveying member is provided with the toner stirring member 11 and the mylar (trade name). A stirring and conveying means member 1 composed of 12 and
3, a toner supply roller 14 as a toner supply means for supplying toner to the developing roller 10 while charging the toner, and a thin layer blade 15 as a toner regulating member for regulating the toner supplied to the developing roller 10. The width of the developing roller 10 in the axial direction is set wide to the image width, but the width of the toner supply roller 14 is set to a substantially image width. Further, the thin-layer blade 15 is supported by the blade holder 16, and the blade holder 16 is used for the casing 20 of the developing device 4.
Attached to.
【００１４】この現像装置４は、トナーを撹拌搬送手段
部材１３によりトナー供給ローラ１４に搬送し、トナー
供給ローラ１４ではトナーを帯電しつつ現像ローラ１０
に供給する。現像ローラ１０に供給されたトナーは、ト
ナー規制部材としての薄層ブレード１５により規制され
ることにより、現像ローラ１０上に均一な薄層化された
トナー層が形成される。この規制により、現像に寄与さ
れないトナーは図４の矢印で示すように、現像ローラ１
０の端部側に拡がって行き、現像ローラ１０の端部より
装置外へ飛散してしまう。このため、従来より側部シー
ル部材としてのサイドシール１７を設け、さらには種々
の工夫をして、トナー飛散を防止しようとしているが、
どれも不十分でそれぞれ問題がある。In the developing device 4, the toner is conveyed to the toner supplying roller 14 by the stirring and conveying means member 13, and the developing roller 10 is charged while the toner is being charged in the toner supplying roller 14.
To supply. The toner supplied to the developing roller 10 is regulated by the thin layer blade 15 as a toner regulating member, so that a uniform thinned toner layer is formed on the developing roller 10. Due to this regulation, the toner that does not contribute to the development is not shown in the developing roller 1 as shown by the arrow in FIG.
The toner spreads to the end portion side of 0 and is scattered from the end portion of the developing roller 10 to the outside of the apparatus. For this reason, the side seal 17 is conventionally provided as a side seal member and various measures are taken to prevent the toner from scattering.
All are inadequate and have problems.
【００１５】そこで、本発明ではこのような問題を解消
するため、次のように措置を講じている。図５及び図６
において、ケーシング２０に接着等により取り付けられ
たサイドシール１７にトナーを受け入れる切り欠き部２
１を設けている。そして、ケーシング２０の切り欠き部
２１に相当する位置には切り欠き部２１に連通する貫通
穴２２が形成され、貫通穴２２は現像装置４のユニット
内に通じている。Therefore, the present invention takes the following measures in order to solve such a problem. 5 and 6
In the cutout portion 2, the side seal 17 attached to the casing 20 by adhesion or the like receives the toner.
1 is provided. Then, a through hole 22 communicating with the cutout portion 21 is formed at a position corresponding to the cutout portion 21 of the casing 20, and the through hole 22 communicates with the inside of the unit of the developing device 4.
【００１６】このように構成した現像装置４は、サイド
シール１７と現像ローラ１０の間をすり抜けて装置外へ
飛散するトナーが図７に示すように、切り欠き部２１に
入り込み、そして貫通穴２２を介して現像装置４のユニ
ット内に戻される。従って、現像ローラ端部からのトナ
ー飛散が軽減されると共に、切り欠き部２１に入り込ん
だトナーを再使用することができる。従って、切り欠き
部２１に取り込んだトナーに対してのメンテナンスが不
要で、トナーの無駄も生ずることがない。In the developing device 4 constructed as described above, the toner that has slipped between the side seal 17 and the developing roller 10 and scattered to the outside of the device enters the notch 21 and the through hole 22 as shown in FIG. Is returned to the inside of the unit of the developing device 4 via. Therefore, the toner scattering from the end portion of the developing roller is reduced, and the toner that has entered the cutout portion 21 can be reused. Therefore, maintenance of the toner taken into the cutout portion 21 is unnecessary, and the waste of toner does not occur.
【００１７】図８及び図９は、本発明の別の実施例を示
す斜視図及び断面図であって、本例では切り欠き部２１
内の現像ローラ１０の回転方向における下流の辺部側、
すなわち切り欠き部２１内の上辺側より延びて現像ロー
ラ１０に当接する掻き落とし部材２３を設けている。こ
の掻き落とし部材２３を設けたことにより、現像ローラ
１０に付着したトナー等を現像ローラ１０の回転を利用
して掻き落とすことができる。そして、掻き落としたト
ナーを切り欠き部２１に導くので、トナーが現像ローラ
１０に付着したまま切り欠き部２１を通過することを防
止することができる。8 and 9 are a perspective view and a sectional view showing another embodiment of the present invention. In this embodiment, a cutout portion 21 is provided.
The side of the developing roller 10 on the downstream side in the rotating direction,
That is, a scraping member 23 is provided which extends from the upper side of the cutout portion 21 and contacts the developing roller 10. By providing the scraping member 23, the toner or the like adhering to the developing roller 10 can be scraped off by utilizing the rotation of the developing roller 10. Then, since the scraped-off toner is guided to the cutout portion 21, it is possible to prevent the toner from passing through the cutout portion 21 while being attached to the developing roller 10.
【００１８】図１０及び図１１は、本発明のさらに別の
実施例を示す斜視図及び断面図であって、本例ではサイ
ドシール１７が取り付けられるケーシング２０の切り欠
き部２１の現像ローラ１０の回転方向における下流の辺
部近傍位置、すなわち切り欠き部２１の上辺近傍位置に
凸部２４を形成している。また、サイドシール１７とし
ては一様の厚さのものを使用しており、このため凸部２
４に当たる部分が現像ローラ側に押圧され、該部のシー
ル力が他の部分より増している。そして、凸部２４が切
り欠き部２１の上辺近傍位置に設けたことにより、切り
欠き部２１を通過しようとするトナーが確実に切り欠き
部２１に導かれる。10 and 11 are a perspective view and a sectional view showing still another embodiment of the present invention. In this embodiment, the developing roller 10 of the notch 21 of the casing 20 to which the side seal 17 is attached are shown. The convex portion 24 is formed at a position near the downstream side portion in the rotation direction, that is, at a position near the upper side of the cutout portion 21. The side seal 17 has a uniform thickness.
The portion corresponding to 4 is pressed to the developing roller side, and the sealing force of this portion is larger than that of the other portions. Since the convex portion 24 is provided in the vicinity of the upper side of the cutout portion 21, the toner passing through the cutout portion 21 is reliably guided to the cutout portion 21.
【００１９】図１２は、本発明のさらに別の実施例を示
す断面図であって、本例では上記に切り欠き部２１と貫
通穴２２とにまたがるマイラー等からなるトナーガイド
部材２５を配設している。このトナーガイド部材２５を
設けることにより、切り欠き部２１に入り込んだトナー
をスムーズに現像装置４のユニット内に戻し、切り欠き
部２１と貫通穴２２内でのトナー詰りを防止することが
できる。FIG. 12 is a cross-sectional view showing still another embodiment of the present invention. In this embodiment, a toner guide member 25 made of Mylar or the like is arranged so as to extend over the cutout portion 21 and the through hole 22. are doing. By providing the toner guide member 25, the toner that has entered the cutout portion 21 can be smoothly returned to the inside of the unit of the developing device 4, and the clogging of the cutout portion 21 and the through hole 22 can be prevented.
【００２０】以上、本発明の好ましい実施例について説
明したが、本発明は上記実施例のみに限定されず各種改
変できるものである。例えば、サイドシール１７に設け
た切り欠き部２１は複数設けてもよい。また、現像ロー
ラ１０が時計方向に回転する形式の現像装置では掻き落
とし部材２３及び凸部２４は底部側及び底部近傍に設け
るようにすればよい。なお、本発明の現像装置は１成分
及び２成分の何れの方式の装置にも適用することができ
る。Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and various modifications can be made. For example, a plurality of cutout portions 21 provided on the side seal 17 may be provided. Further, in the developing device in which the developing roller 10 rotates in the clockwise direction, the scraping member 23 and the convex portion 24 may be provided on the bottom side and in the vicinity of the bottom. The developing device of the present invention can be applied to either one-component or two-component type devices.
【００２１】[0021]
【発明の効果】請求項１の発明によれば、側部シール部
材にトナーを受け入れる切り欠き部が設けられているの
で、側部シール部材に侵入したトナーを滞留、蓄積する
ことなく装置内に戻すことができる。According to the invention of claim 1, since the side seal member is provided with the cutout portion for receiving the toner, the toner that has entered the side seal member is not accumulated and accumulated in the apparatus. Can be returned.
【００２２】請求項２の発明によれば、切り欠き部内の
現像ローラの回転方向における下流の辺部側に現像ロー
ラに当接してトナーを掻き落とす掻き落とし部材を設け
たので、側部シール部材に侵入したトナー掻き落とし部
材で掻き落とし、そしてそのトナーを確実に切り欠き部
に導くことができる。According to the second aspect of the invention, since the scraping member for scraping off the toner by contacting the developing roller is provided on the downstream side in the rotation direction of the developing roller in the cutout portion, the side sealing member. It is possible to scrape off the toner with the toner scraping member that has entered into and to reliably guide the toner to the notch.
【００２３】請求項３の発明によれば、側部シール部材
が取り付けられる現像装置のケーシングにて切り欠き部
の現像ローラの回転方向における下流の辺部近傍位置
に、該部分の側部シール部材を現像ローラ側に押圧する
ための凸部が形成されているので、切り欠き部を通過し
ようとするトナーを確実に切り欠き部に導くことができ
る。According to the third aspect of the present invention, in the casing of the developing device to which the side seal member is attached, the side seal member of the cutout portion is located at a position near the downstream side portion in the rotation direction of the developing roller. Since the convex portion for pressing the sheet to the developing roller side is formed, it is possible to reliably guide the toner, which is about to pass through the cutout portion, to the cutout portion.
【００２４】請求項４の発明によれば、ケーシングに切
り欠き部と連通し、かつ現像装置内側に通じる貫通穴を
形成し、該貫通穴と切り欠き部にまたがるトナーガイド
部材を配設したので、側部シール部材に侵入したトナー
が切り欠き部や貫通穴で滞留することなく装置内に戻す
ことができる。According to the invention of claim 4, a through hole communicating with the cutout portion and communicating with the inside of the developing device is formed in the casing, and the toner guide member extending over the through hole and the cutout portion is arranged. The toner that has entered the side seal member can be returned to the inside of the apparatus without staying in the notch or the through hole.
【図１】本発明に係る現像装置を備えた画像形成装置の
主要部を示す概略構成図である。FIG. 1 is a schematic configuration diagram showing a main part of an image forming apparatus including a developing device according to the present invention.
【図２】本発明に係る現像装置の拡大構成図である。FIG. 2 is an enlarged configuration diagram of a developing device according to the present invention.
【図３】本発明に係る現像装置の平面説明図である。FIG. 3 is an explanatory plan view of a developing device according to the present invention.
【図４】トナー規制部材によるトナーの流れを示す斜視
図である。FIG. 4 is a perspective view showing a flow of toner by a toner regulating member.
【図５】本発明に係る現像装置の一実施例を示す分解斜
視図である。FIG. 5 is an exploded perspective view showing an embodiment of the developing device according to the present invention.
【図６】その現像装置の断面図である。FIG. 6 is a sectional view of the developing device.
【図７】その現像装置のトナーの流れを示す説明図であ
る。FIG. 7 is an explanatory diagram showing a toner flow in the developing device.
【図８】本発明に係る現像装置の別の実施例を示す斜視
図である。FIG. 8 is a perspective view showing another embodiment of the developing device according to the present invention.
【図９】その現像装置の断面図である。FIG. 9 is a sectional view of the developing device.
【図１０】本発明に係る現像装置のさらに別の実施例を
示す分解斜視図である。FIG. 10 is an exploded perspective view showing still another embodiment of the developing device according to the present invention.
【図１１】その現像装置の断面図である。FIG. 11 is a sectional view of the developing device.
【図１２】本発明に係る現像装置のさらに別の実施例を
示す断面図である。FIG. 12 is a sectional view showing still another embodiment of the developing device according to the present invention.
１ 感光体 ４ 現像装置 １０ 現像ローラ １５ 薄層ブレード １７ サイドシール ２０ ケーシング ２１ 切り欠き部 ２２ 貫通穴 ２３ 掻き落とし部材 ２４ 凸部 ２５ トナーガイド部材 DESCRIPTION OF SYMBOLS 1 Photoconductor 4 Developing device 10 Developing roller 15 Thin layer blade 17 Side seal 20 Casing 21 Notch 22 Through hole 23 Scraping member 24 Convex 25 Toner guide member
Claims (4)
に形成された潜像にトナーを供給する現像ローラと、該
現像ローラにトナーを供給するトナー供給手段と、前記
現像ローラに供給されたトナーを規制するトナー規制部
材と、前記現像ローラの両側に設けられた側部シール部
材とを有する現像装置において、 前記側部シール部材にトナーを受け入れる切り欠き部が
設けられていることを特徴とする現像装置。1. A developing roller, which is disposed so as to face the image carrier and supplies toner to a latent image formed on the image carrier, a toner supplying means for supplying toner to the developing roller, and the developing roller. In a developing device having a toner regulating member for regulating the supplied toner and side seal members provided on both sides of the developing roller, a cutout portion for receiving toner is provided in the side seal member. Developing device.
記切り欠き部内の前記現像ローラの回転方向における下
流の辺部側に前記現像ローラに当接してトナーを掻き落
とす掻き落とし部材を設けたことを特徴とする現像装
置。2. The developing device according to claim 1, wherein a scraping member that scrapes toner by abutting against the developing roller is provided on a side of a downstream side in the rotation direction of the developing roller in the cutout portion. A developing device characterized by the above.
いて、前記側部シール部材が取り付けられる現像装置の
ケーシングにて前記切り欠き部の前記現像ローラの回転
方向における下流の辺部近傍位置に、該部分の側部シー
ル部材を前記現像ローラ側に押圧するための凸部が形成
されていることを特徴とする現像装置。3. The developing device according to claim 1, wherein a casing of the developing device to which the side seal member is attached is provided at a position near a side portion of the cutout portion on a downstream side in a rotation direction of the developing roller. The developing device is characterized in that a convex portion for pressing the side seal member of the portion toward the developing roller is formed.
において、前記ケーシングに前記切り欠き部と連通し、
かつ現像装置内側に通じる貫通穴を形成し、該貫通穴と
前記切り欠き部にまたがるトナーガイド部材を配設した
ことを特徴とする現像装置。4. The developing device according to claim 1, wherein the casing communicates with the cutout portion,
Further, the developing device is characterized in that a through hole communicating with the inside of the developing device is formed, and a toner guide member extending over the through hole and the cutout portion is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23997195A JP3372406B2 (en) | 1995-09-19 | 1995-09-19 | Developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23997195A JP3372406B2 (en) | 1995-09-19 | 1995-09-19 | Developing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0980906A true JPH0980906A (en) | 1997-03-28 |
| JP3372406B2 JP3372406B2 (en) | 2003-02-04 |
Family
ID=17052565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23997195A Expired - Fee Related JP3372406B2 (en) | 1995-09-19 | 1995-09-19 | Developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3372406B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11338253A (en) * | 1998-05-25 | 1999-12-10 | Ricoh Co Ltd | Developing device |
| US7457560B2 (en) | 2005-09-28 | 2008-11-25 | Brother Kogyo Kabushiki Kaisha | Developing device |
| CN105911839A (en) * | 2015-02-24 | 2016-08-31 | 富士施乐株式会社 | Cleaning device, image forming apparatus including cleaning device, and end-sealing member for cleaning device |
| US9983513B2 (en) | 2016-05-23 | 2018-05-29 | Kyocera Document Solutions Inc. | Developing device and image forming apparatus including the same |
| US11209749B2 (en) | 2019-12-26 | 2021-12-28 | Canon Kabushiki Kaisha | Process cartridge having toner receiving portion |
-
1995
- 1995-09-19 JP JP23997195A patent/JP3372406B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11338253A (en) * | 1998-05-25 | 1999-12-10 | Ricoh Co Ltd | Developing device |
| US7457560B2 (en) | 2005-09-28 | 2008-11-25 | Brother Kogyo Kabushiki Kaisha | Developing device |
| CN105911839A (en) * | 2015-02-24 | 2016-08-31 | 富士施乐株式会社 | Cleaning device, image forming apparatus including cleaning device, and end-sealing member for cleaning device |
| KR20160103490A (en) * | 2015-02-24 | 2016-09-01 | 후지제롯쿠스 가부시끼가이샤 | Cleaning device and image forming apparatus using the same, and end sealing member for cleaning device |
| JP2016156896A (en) * | 2015-02-24 | 2016-09-01 | 富士ゼロックス株式会社 | Cleaning device, image formation apparatus using the same, and end sealing member for cleaning device |
| US9442453B1 (en) * | 2015-02-24 | 2016-09-13 | Fuji Xerox Co., Ltd. | Cleaning device, image forming apparatus including cleaning device, and end-sealing member for cleaning device |
| CN105911839B (en) * | 2015-02-24 | 2018-12-28 | 富士施乐株式会社 | Cleaning device, image forming apparatus and its end part sealing member including it |
| US9983513B2 (en) | 2016-05-23 | 2018-05-29 | Kyocera Document Solutions Inc. | Developing device and image forming apparatus including the same |
| US11209749B2 (en) | 2019-12-26 | 2021-12-28 | Canon Kabushiki Kaisha | Process cartridge having toner receiving portion |
| US11500305B2 (en) | 2019-12-26 | 2022-11-15 | Canon Kabushiki Kaisha | Process cartridge having toner receiving portion |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3372406B2 (en) | 2003-02-04 |
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