JPH0895357A - Toner jet type printer - Google Patents
Toner jet type printerInfo
- Publication number
- JPH0895357A JPH0895357A JP23352794A JP23352794A JPH0895357A JP H0895357 A JPH0895357 A JP H0895357A JP 23352794 A JP23352794 A JP 23352794A JP 23352794 A JP23352794 A JP 23352794A JP H0895357 A JPH0895357 A JP H0895357A
- Authority
- JP
- Japan
- Prior art keywords
- electrostatic latent
- latent image
- image carrier
- pulley
- toner
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、帯電したトナーを吐出
させて画像形成を行うトナージェット式印刷装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toner jet type printing apparatus for discharging a charged toner to form an image.
【０００２】[0002]
【従来の技術】この種のトナージェット式印刷装置で
は、本来、吐出したトナーを直接用紙に付着させて画像
形成を行う構成が採用されていたが、電極間隔によって
用紙の厚みが制約されるという問題や、用紙に帯電した
静電気によるトナー吹き付け時のトナー拡散（画像不
良）による印字品質の低下という不都合を備えていた。2. Description of the Related Art In this type of toner jet type printer, originally, a structure is adopted in which discharged toner is directly adhered to a sheet to form an image, but the electrode interval limits the thickness of the sheet. There are problems such as a problem and deterioration of print quality due to toner diffusion (image defect) when toner is sprayed due to static electricity charged on the paper.
【０００３】このため、例えば特開平４−１５２１５４
号公報には、前者の問題を解消するため、中間記録媒体
としての転写ドラムに一旦画像を形成した後、トナー吐
出部位より別の箇所で用紙に画像を転写し、その後に熱
定着機構に通す方式が提案されている。Therefore, for example, Japanese Unexamined Patent Publication No. 4-152154
In order to solve the former problem, the publication discloses that an image is once formed on a transfer drum as an intermediate recording medium, then the image is transferred onto a sheet at a position different from the toner ejection site, and then passed through a heat fixing mechanism. A scheme has been proposed.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、上述し
たように中間記録媒体を設ける間接記録方式によると、
前述した各問題点を一挙に解消し得るが、一方、この種
の装置の技術趨勢に反して装置が大型化し、製造コスト
が増大する、という不都合が生じる。However, according to the indirect recording method in which the intermediate recording medium is provided as described above,
Although the above-mentioned problems can be solved all at once, on the other hand, there is a disadvantage that the device becomes large and the manufacturing cost increases contrary to the technological trend of the device of this type.
【０００５】[0005]
【発明の目的】本発明は、かかる従来例の有する不都合
を改善し、とくに上記中間記録媒体方式による利点を維
持しつつ、その小型化並びに製造コストの低減を図り得
るトナージェット式印刷装置の提供を、その目的とす
る。SUMMARY OF THE INVENTION An object of the present invention is to provide a toner jet type printing apparatus capable of improving the disadvantages of the prior art and reducing the size and manufacturing cost thereof while maintaining the advantages of the intermediate recording medium method. Is the purpose.
【０００６】[0006]
【課題を解決するための手段】本発明では、一方と他方
のプーリに張架され走行するベルト状の静電潜像担持体
と、この静電潜像担持体に対向して前記一方のプーリに
近接装備され前記静電潜像担持体の静電潜像に吸引され
る所定量のトナーを吐出して当該静電潜像を現像する現
像手段とを備え、他方のプーリを加熱ローラにより構成
すると共にこの加熱ローラ側を用紙走行路に面して配置
し、この加熱ローラを前記静電潜像担持体を介して押圧
する用紙加圧ローラを、用紙走行路に面して配置する、
等の構成を採っている。これによって前述した目的を達
成しようとするものである。According to the present invention, a belt-shaped electrostatic latent image carrier which is stretched around one and the other pulleys and runs, and the one pulley facing the electrostatic latent image carrier. And a developing means for discharging a predetermined amount of toner attracted to the electrostatic latent image of the electrostatic latent image carrier to develop the electrostatic latent image, and the other pulley is constituted by a heating roller. In addition, the heating roller side is arranged facing the paper traveling path, and the paper pressure roller for pressing the heating roller via the electrostatic latent image carrier is arranged facing the paper traveling path.
Etc. are adopted. This aims to achieve the above-mentioned object.
【０００７】また、静電潜像担持体を耐熱性を有する部
材で形成された構成とすることもできる。Alternatively, the electrostatic latent image carrier may be formed of a heat resistant member.
【０００８】また、前記現像手段は、前記静電潜像担持
体側に位置すると共に前記一方のプーリに沿うトナー吐
出ガイドを備えている構成とすることができる。Further, the developing means may be configured to include a toner discharge guide located on the electrostatic latent image carrier side and along the one pulley.
【０００９】[0009]
【作用】まず、装置全体を稼働状態に設定すると、現像
手段から吐出した所定量のトナーが静電潜像担持体の静
電潜像に吸引され、これによって静電潜像担持体に可視
画像が形成される。形成された画像は静電潜像担持体の
回転移動で搬送され、加熱ローラと用紙加圧ローラ間で
加熱されるとともに加圧される。これにより用紙への転
写と定着が同時に実行される。First, when the entire apparatus is set to the operating state, a predetermined amount of toner ejected from the developing means is attracted to the electrostatic latent image on the electrostatic latent image carrier, whereby a visible image is formed on the electrostatic latent image carrier. Is formed. The formed image is conveyed by the rotational movement of the electrostatic latent image carrier, and is heated and pressed between the heating roller and the paper pressure roller. As a result, the transfer and the fixing onto the sheet are simultaneously executed.
【００１０】また、請求項２のトナージェット式印刷装
置によれば、加熱ローラから受ける熱による静電潜像担
持体への影響が抑制され、静電潜像担持体の長寿命化が
図られる。Further, according to the toner jet type printing apparatus of the second aspect, the influence of the heat received from the heating roller on the electrostatic latent image carrier is suppressed, and the life of the electrostatic latent image carrier is extended. .
【００１１】また、請求項３のトナージェット式印刷装
置によれば、トナーの吐出距離が最短となり、現像手段
の構成の最適化が図られる。According to the toner jet type printing apparatus of the third aspect, the discharge distance of the toner becomes the shortest, and the construction of the developing means can be optimized.
【００１２】[0012]
【実施例】以下、本発明の一実施例を図１に基づいて説
明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.
【００１３】まず、図１において、トナージェット式印
刷装置２には、間隔をおいて設けられた一方のプーリ４
と他方のプーリ６に張架された無端ベルト状の静電潜像
担持体８と、一方のプーリ４に近接した位置をもって静
電潜像担持体８に対向して設けられた現像手段１０と、
他方のプーリ６との間で用紙１２並びに静電潜像担持体
８を加圧可能に設けられた用紙加圧ローラ１４とが備え
られている。ここで、上記各構成要素を覆う筐体や、静
電潜像担持体８の電極等は省略してある。First, referring to FIG. 1, the toner jet printer 2 has one pulley 4 provided at a distance.
And an electrostatic latent image carrier 8 in the form of an endless belt stretched around the other pulley 6, and a developing means 10 provided facing the electrostatic latent image carrier 8 at a position close to the one pulley 4. ,
A sheet 12 and a sheet pressure roller 14 provided so as to be able to press the electrostatic latent image carrier 8 with the other pulley 6 are provided. Here, the casing that covers the above-mentioned components and the electrodes of the electrostatic latent image carrier 8 are omitted.
【００１４】他方のプーリ６は加熱ローラとして形成さ
れており、その内部には発熱ランプ１６が内蔵されてい
る。また、この他方のプーリ６は、用紙走行路ＰＬに面
して配置されている。本例における静電潜像担持体８
は、耐熱性及び離型性を有する素材で形成されており、
熱影響による組成変形ないし材質変形を抑制できるとと
もに画像の用紙１２への転写が容易になされるようにな
っている。The other pulley 6 is formed as a heating roller, and a heat generating lamp 16 is built therein. The other pulley 6 is arranged so as to face the sheet traveling path PL. Electrostatic latent image carrier 8 in this example
Is made of a material having heat resistance and releasability,
It is possible to suppress the compositional deformation or the material deformation due to the influence of heat and to easily transfer the image to the paper 12.
【００１５】現像手段１０には、トナーＴ1 が貯蔵され
るケース１８と、このケース１８の静電潜像担持体８側
において一方のプーリ４に対向して設けられたトナー吐
出ガイド２０が備えられており、ケース１８内には、ト
ナーを供給する供給ローラ２２と、ブラシローラ２４
と、このブラシローラ２４を掻くスクレーパ２６等が備
えられている。The developing means 10 is provided with a case 18 in which the toner T 1 is stored, and a toner discharge guide 20 provided so as to face one pulley 4 on the side of the electrostatic latent image carrier 8 of the case 18. In the case 18, a supply roller 22 for supplying toner and a brush roller 24 are provided.
And a scraper 26 for scraping the brush roller 24 and the like.
【００１６】用紙加圧ローラ１４は、用紙走行路ＰＬに
面して加熱ローラ６に対向して配置されており、望まし
くは一方のプーリ４と加熱ローラ６及び用紙加圧ローラ
１４は、それらの中心が略同一線上に位置するように配
置される。The sheet pressure roller 14 is arranged facing the heating roller 6 so as to face the sheet traveling path PL. Desirably, one of the pulley 4, the heating roller 6 and the sheet pressure roller 14 is provided. It is arranged such that the centers thereof are substantially on the same line.
【００１７】次に、トナージェット式印刷装置２による
画像形成動作を説明する。ケース１８内において供給ロ
ーラ２２等との接触摩擦で帯電したトナーＴ1 は、トナ
ー吐出ガイド２０によって静電潜像担持体８へ向けて所
定量が吐出され、トナーＴ1と反対の電極を有する静電
潜像担持体８の静電潜像に吸引される。この吸引によっ
て静電潜像が現像され、トナーＴ1 は未定着トナーＴ2
としてなる。Next, an image forming operation by the toner jet type printer 2 will be described. The toner T 1 charged by the contact friction with the supply roller 22 and the like in the case 18 is discharged by a predetermined amount toward the electrostatic latent image carrier 8 by the toner discharge guide 20, and has an electrode opposite to the toner T 1. It is attracted to the electrostatic latent image on the electrostatic latent image carrier 8. The electrostatic latent image is developed by this suction, and the toner T 1 is unfixed toner T 2
As
【００１８】搬送ローラとしての一方のプーリ４によっ
て静電潜像担持体８は回転駆動され、画像が用紙走行路
ＰＬ側へ移動する。この画像移動に整合するように用紙
１２が制御供給され、加熱ローラ６と用紙加圧ローラ１
４間の加圧及び加熱ローラ６による加熱によって、静電
潜像担持体８の画像が用紙１２へ転写されるとともに同
時に定着が行われる。The electrostatic latent image carrier 8 is rotationally driven by one of the pulleys 4 serving as a conveyance roller, and the image is moved to the paper traveling path PL side. The paper 12 is controlled and supplied so as to match this image movement, and the heating roller 6 and the paper pressure roller 1 are fed.
The image of the electrostatic latent image carrier 8 is transferred to the paper 12 and is simultaneously fixed by the pressure between 4 and the heating by the heating roller 6.
【００１９】このように、中間記録媒体としての静電潜
像担持体８の駆動機構自体に定着機能を兼務させる構成
とすることにより、別途定着機構を設ける必要がなく、
よって装置の大型化並びに製造コストの増加を抑制でき
る。As described above, the driving mechanism of the electrostatic latent image carrier 8 serving as the intermediate recording medium also has the fixing function, so that it is not necessary to provide a separate fixing mechanism.
Therefore, it is possible to suppress an increase in size of the device and an increase in manufacturing cost.
【００２０】[0020]
【発明の効果】本発明によれば、中間記録媒体としての
静電潜像担持体の駆動機構が用紙加圧ローラとともに定
着機構を担うので、別途定着機構を設ける必要がなく、
よって中間記録媒体方式のメリットを維持しながら装置
の大型化並びに製造コストの増加を抑制することができ
る。また、転写と定着が同時に行われるので工程ブラン
クないしスパンが存在せず、よって画像の品質向上を図
ることができる。According to the present invention, since the drive mechanism of the electrostatic latent image carrier as the intermediate recording medium plays a role of the fixing mechanism together with the paper pressure roller, it is not necessary to provide a separate fixing mechanism
Therefore, it is possible to suppress an increase in size of the apparatus and an increase in manufacturing cost while maintaining the merit of the intermediate recording medium method. Further, since transfer and fixing are performed at the same time, there are no process blanks or spans, and therefore image quality can be improved.
【００２１】また、請求項２のトナージェット式印刷装
置によれば、静電潜像担持体の駆動機構に定着機構の一
方を担う加熱ローラを設けたことによる熱影響を抑制で
き、静電潜像担持体の長寿命化を図ることができる。Further, according to the toner jet type printing apparatus of the second aspect, it is possible to suppress the thermal influence caused by providing the driving mechanism of the electrostatic latent image bearing member with the heating roller which serves as one of the fixing mechanisms, and the electrostatic latent image is suppressed. The life of the image carrier can be extended.
【００２２】また、請求項３のトナージェット式印刷装
置によれば、トナーの吐出距離が最短となるので、現像
手段の構成を最小限に抑えることができ、ひいては装置
全体のコンパクト化に寄与できる。Further, according to the toner jet type printing apparatus of the third aspect, the ejection distance of the toner becomes the shortest, so that the constitution of the developing means can be minimized, which contributes to downsizing of the entire apparatus. .
【図１】本発明の一実施例を示す概略縦断面図である。FIG. 1 is a schematic vertical sectional view showing an embodiment of the present invention.
４ 一方のプーリ ６ 加熱ローラ（他方のプーリ） ８ 静電潜像担持体 １０ 現像手段 １４ 用紙加圧ローラ ＰＬ 用紙走行路 4 One pulley 6 Heating roller (other pulley) 8 Electrostatic latent image carrier 10 Developing means 14 Paper pressure roller PL Paper traveling path
Claims (3)
ベルト状の静電潜像担持体と、この静電潜像担持体に対
向して前記一方のプーリに近接装備され前記静電潜像担
持体の静電潜像に吸引される所定量のトナーを吐出して
当該静電潜像を現像する現像手段とを備え、 前記他方のプーリを加熱ローラにより構成すると共にこ
の加熱ローラ側を用紙走行路に面して配置し、 この加熱ローラを前記静電潜像担持体を介して押圧する
用紙加圧ローラを、前記用紙走行路に面して配置したこ
とを特徴とするトナージェット式印刷装置。1. A belt-shaped electrostatic latent image carrier running while being stretched around one and the other pulleys, and the electrostatic latent image carrier that is provided near the one pulley so as to face the electrostatic latent image carrier. And a developing unit for developing the electrostatic latent image by discharging a predetermined amount of toner attracted to the electrostatic latent image on the image carrier. The other pulley is constituted by a heating roller, and the heating roller side is A toner jet type characterized in that a paper pressure roller that is arranged facing the paper traveling path and presses the heating roller via the electrostatic latent image carrier is arranged facing the paper traveling path. Printing device.
部材により構成されていることを特徴とした請求項１記
載のトナージェット式印刷装置。2. The toner jet printing apparatus according to claim 1, wherein the electrostatic latent image carrier is composed of a member having heat resistance.
に位置すると共に前記一方のプーリに沿うトナー吐出ガ
イドを備えていることを特徴とした請求項１又は２記載
のトナージェット式印刷装置。3. The toner jet type printing according to claim 1, wherein said developing means is provided with a toner discharge guide which is located on the side of said electrostatic latent image bearing member and extends along said one pulley. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23352794A JPH0895357A (en) | 1994-09-28 | 1994-09-28 | Toner jet type printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23352794A JPH0895357A (en) | 1994-09-28 | 1994-09-28 | Toner jet type printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0895357A true JPH0895357A (en) | 1996-04-12 |
Family
ID=16956443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23352794A Pending JPH0895357A (en) | 1994-09-28 | 1994-09-28 | Toner jet type printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0895357A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0215282A (en) * | 1988-07-02 | 1990-01-18 | Asahi Chem Ind Co Ltd | Electrophotographic recording method and device thereof |
| JPH04141457A (en) * | 1990-10-03 | 1992-05-14 | Brother Ind Ltd | Image display apparatus |
| JPH04168063A (en) * | 1990-10-31 | 1992-06-16 | Brother Ind Ltd | Toner jet image formation device |
-
1994
- 1994-09-28 JP JP23352794A patent/JPH0895357A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0215282A (en) * | 1988-07-02 | 1990-01-18 | Asahi Chem Ind Co Ltd | Electrophotographic recording method and device thereof |
| JPH04141457A (en) * | 1990-10-03 | 1992-05-14 | Brother Ind Ltd | Image display apparatus |
| JPH04168063A (en) * | 1990-10-31 | 1992-06-16 | Brother Ind Ltd | Toner jet image formation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19970610 |