JPS60238875A - Recording device - Google Patents
Recording deviceInfo
- Publication number
- JPS60238875A JPS60238875A JP59094462A JP9446284A JPS60238875A JP S60238875 A JPS60238875 A JP S60238875A JP 59094462 A JP59094462 A JP 59094462A JP 9446284 A JP9446284 A JP 9446284A JP S60238875 A JPS60238875 A JP S60238875A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- roller
- image
- image carrier
- developing device
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
- G03G15/095—Removing excess solid developer, e.g. fog preventing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電子写真複写機等の記録装置に関シ２゜特に
、回動する像担持体上に形成した潜像を現像装置によっ
てトナー像に現像する乾式記録装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device such as an electrophotographic copying machine. The present invention relates to a dry recording device that develops images.
上述のような従来の記録装置は、現像装置の装置ケース
前縁を像担持体に近接させるようにして現像装置からト
ナーが飛散することを防止していた。しかし、このよう
な記録装置は、現像装置の装置ケース前縁にトナーが堆
積し易く、それが像担持体の表面に触れるようになって
トナー像を乱したり、現像装置からトナーがとほれ落ち
たシし易いと云う問題があった〇
〔発明の目的〕
本発明は、上述の問題を解消するためになされたもので
あり、現像位置から落下するトナーが回収されてトナー
の飛散汚わが防止される記録装置を提供するものである
。In the conventional recording apparatus as described above, the leading edge of the device case of the developing device is brought close to the image carrier to prevent toner from scattering from the developing device. However, in such a recording device, toner tends to accumulate on the front edge of the device case of the developing device, and this can come into contact with the surface of the image carrier and disturb the toner image, or the toner can fall off from the developing device. There was a problem that the toner easily fell off. [Object of the Invention] The present invention was made to solve the above-mentioned problem, and the toner that falls from the developing position is collected and the toner scattering dirt is removed. The purpose of the present invention is to provide a recording device that is protected from the above.
本発明は、回動する像担持体上に形成した潜像を」像装
置によってトナー像に現像する記録装置において、現像
装置の下流側下方に、像担持体の表面と近接して現像位
置から落下するトナーを受けルローラを有するトナー飛
散防止装置を設けたことを特徴とする記録装置にあり、
この構成によって上記目的を達成したものである。The present invention provides a recording device in which a latent image formed on a rotating image carrier is developed into a toner image by an imaging device, in which a latent image formed on a rotating image carrier is located downstream of the developing device from a developing position in close proximity to the surface of the image carrier. A recording device characterized by being provided with a toner scattering prevention device having a roller for catching falling toner,
This configuration achieves the above objective.
以下、本発明を図示例によって説明する。 The present invention will be explained below using illustrated examples.
図は本発明記録装置の一例を示す要部断面図であり、図
において、１は感光体ドラムのような矢印方向に回動す
る像担持体、２はトナーとキャリヤの混合した二成分現
像剤また１Ｃ［磁性トナーから成る一成分現像剤の層を
表面に形成して矢印方向に搬送する現像剤搬送担体２ａ
を有する現像装置゛、３は現像装置２の下流側下方にお
いて像担持体］の表面と近接して現像位置から落−トす
るトナーを受けるローラ３ａを有するトナー飛散防止装
置である０
図示していない公知の潜像形成手段によって像担持体１
の表向に形成された静ｆト５潜イＳ：等の潜像は、世像
装置２によって功像剤搬送ｒ（体２ａ上の明像剤層が像
担持体１の表面に接触しない非接触ジャンピング現伊売
件、あるいは現像剤層が像担持体１の表面を摺擦する接
触現像条件によりて、トナー像に塑像される。その際、
トナーが下方に落１し易い。The figure is a cross-sectional view of essential parts of an example of the recording apparatus of the present invention. In the figure, 1 is an image carrier rotating in the direction of the arrow, such as a photosensitive drum, and 2 is a two-component developer containing a mixture of toner and carrier. Further, 1C [developer transport carrier 2a with a layer of one-component developer made of magnetic toner formed on the surface and transported in the direction of the arrow]
3 is a toner scattering prevention device having a roller 3a that receives toner dropped from the development position in close proximity to the surface of the image carrier on the lower downstream side of the developing device 2.0 (not shown) The image carrier 1 is formed by a known latent image forming means.
The static latent images formed on the surface of A toner image is formed by non-contact jumping development or contact development conditions in which the developer layer rubs against the surface of the image carrier 1. At that time,
Toner tends to fall downward.
ローラ３ａｉｌ、その幅の両端部が像担持体１の像形成
に関与しない表面と接触して矢印方向の回転を与えられ
、中央部分が像担持体１に形成きれたトナー像を損傷し
ないように点線で示しだ如く像枦特体１の表向から離れ
ている。落下したトナーはこのローラ３ａの表面に付着
して運けれ、ローラ３ａの表向に接触するクリーニング
ブレード３ｂによってトナー飛散防止装置３のトナー溜
り３ｃに掻き落される。すなわち、現像位置から落下す
るトナーは、トナー飛散防止装置３に捕捉されて飛散す
ることがなく、ローラ３ａの表面やトナー飛散防止装置
３の装置ケースに像担持体１のトナー像を乱すように堆
積することもない。Both ends of the width of the roller 3ail contact the surface of the image carrier 1 that is not involved in image formation and are rotated in the direction of the arrow, and the center portion is rotated so as not to damage the toner image completely formed on the image carrier 1. As shown by the dotted line, the image is away from the surface of the special object 1. The fallen toner adheres to the surface of the roller 3a and is carried away, and is scraped off into a toner reservoir 3c of the toner scatter prevention device 3 by a cleaning blade 3b that contacts the surface of the roller 3a. That is, the toner falling from the development position is caught by the toner scattering prevention device 3 and does not scatter, and is not scattered on the surface of the roller 3a or the device case of the toner scattering prevention device 3 so as to disturb the toner image on the image carrier 1. There is no accumulation.
なお、ローラ３ａは、表面が絶縁性材料から構成されて
いることが落下したトナーの付着し易いことや像（１」
特休１のトナー像を乱１〜たりしたいことなどの点から
好ましく、また、トナーの＠電と同極性の直流電圧を印
加できるようにすることがトナーの落下を少なくしたり
像担持体１のトナー俄ヲ乱したりしないこと等の上から
好ましい。ローラ３ａは、１述のより彦Ｎ−擦回転する
ものに限らず、相４ｊ９ｊ Ｉ＋−！１転するものであ
ってもよいことは勿＾である。そし７て、回転方向は１
絞担持休１の表面に沿う包流を乱さないように像担持体
１と同じような表面速度で同じ方向とするのが奸才しい
。その点、ト′４示の前柱は、ｈ５も簡単プｃ方法でこ
の好ましい条件を満足している。Note that since the surface of the roller 3a is made of an insulating material, it is easy for fallen toner to adhere to it, and the image (1)
This is preferable because it is desirable to disturb the toner image on the special holiday 1, and it is also preferable to apply a DC voltage with the same polarity as the toner @ voltage to reduce toner falling and to disturb the toner image on the image carrier 1. This is preferable because it does not disturb the toner. The roller 3a is not limited to the roller 3a mentioned above which rotates by rubbing. Of course, it is also possible to make one turn. Then, the rotation direction is 1
In order not to disturb the envelope flow along the surface of the diaphragm carrier 1, it is a good idea to set it at the same surface speed and in the same direction as the image carrier 1. In this respect, the front pillar shown in G'4 and h5 also satisfy this preferable condition using the simple Pc method.
本発明の記録装置においては、安定してトナーの飛散防
止がなされて、トナー像が乱されることもないと言う優
れた効果が得られる。そして、本発明け、電子写真複写
機に限らず、静′間記釘、法や磁り記録法による乾式記
録装−゛にも適用できる。In the recording apparatus of the present invention, excellent effects can be obtained in that toner scattering is stably prevented and toner images are not disturbed. Furthermore, the present invention is applicable not only to electrophotographic copying machines but also to dry recording devices using static recording methods, magnetic recording methods, and magnetic recording methods.
図は本発明記録装置の一例を示す要部断面図である。
１・・・像担持体、 ２・・・現像装置、２ａ・・・」
像剤搬送担体、３・・・トナー飛散防止装置、３ａ・・
ローラ、
３ｂ・・・クリーニングブレード、
３Ｃ・・・トナー溜シ。
特許出願人 小西六写真工業株式会社
５−−１The figure is a sectional view of a main part showing an example of the recording device of the present invention. 1... Image carrier, 2... Developing device, 2a..."
Imager transport carrier, 3... Toner scattering prevention device, 3a...
Roller, 3b...Cleaning blade, 3C...Toner reservoir. Patent applicant Konishiroku Photo Industry Co., Ltd. 5--1
Claims (1)
装置によってトナー像に現像する記録装置において、現
体装置の下流側下方に、像担持体の表面と近接して現像
位置から落下するトナーを受けるローラを有するトナー
飛散時ＪＪ：装置を設けたことを特徴とする記価、装置
−０（２） 前記ローラに付着したトナーがクリーニン
グブレードによってトナー飛散防止装置のトナー溜りに
＠収される特許請求の範囲第１項記載の記録装置。 （３） 前記ローラの回転が該ローラの端部における像
担持体への接触によって与えられる特許請求の範囲第１
項または第２項記載の記録装置。[Scope of Claims] (1) A latent image formed on a rotating image carrier is developed. (In a recording device that develops a toner image using a father device, a toner scattering JJ device is provided which has a roller downstream of the developing device and close to the surface of the image carrier to receive the toner falling from the developing position. (2) The recording device according to claim 1, wherein the toner adhering to the roller is collected in a toner reservoir of a toner scattering prevention device by a cleaning blade. 3) The rotation of the roller is provided by contacting the image carrier at an end of the roller.
The recording device according to item 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59094462A JPS60238875A (en) | 1984-05-14 | 1984-05-14 | Recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59094462A JPS60238875A (en) | 1984-05-14 | 1984-05-14 | Recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60238875A true JPS60238875A (en) | 1985-11-27 |
Family
ID=14110939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59094462A Pending JPS60238875A (en) | 1984-05-14 | 1984-05-14 | Recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60238875A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200209804A1 (en) * | 2018-12-28 | 2020-07-02 | Canon Kabushiki Kaisha | Process cartridge and developing cartridge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5335550A (en) * | 1976-09-13 | 1978-04-03 | Ricoh Co Ltd | Electrostatic latent image developing device |
| JPS58217964A (en) * | 1982-06-14 | 1983-12-19 | Konishiroku Photo Ind Co Ltd | Developing device |
-
1984
- 1984-05-14 JP JP59094462A patent/JPS60238875A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5335550A (en) * | 1976-09-13 | 1978-04-03 | Ricoh Co Ltd | Electrostatic latent image developing device |
| JPS58217964A (en) * | 1982-06-14 | 1983-12-19 | Konishiroku Photo Ind Co Ltd | Developing device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20200209804A1 (en) * | 2018-12-28 | 2020-07-02 | Canon Kabushiki Kaisha | Process cartridge and developing cartridge |
| US11112753B2 (en) * | 2018-12-28 | 2021-09-07 | Canon Kabushiki Kaisha | Cartridge with a sheet to remove matter from a surface of a photosensitive drum |
| US11480916B2 (en) | 2018-12-28 | 2022-10-25 | Canon Kabushiki Kaisha | Cartridge having toner removing sheet in contact with photosensitive drum |
| US11841647B2 (en) | 2018-12-28 | 2023-12-12 | Canon Kabushiki Kaisha | Cartridge and developing cartridge including a frame and sheet member provided at end side of the frame |
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