JPH01144082A - Image forming method - Google Patents
Image forming methodInfo
- Publication number
- JPH01144082A JPH01144082A JP30403387A JP30403387A JPH01144082A JP H01144082 A JPH01144082 A JP H01144082A JP 30403387 A JP30403387 A JP 30403387A JP 30403387 A JP30403387 A JP 30403387A JP H01144082 A JPH01144082 A JP H01144082A
- Authority
- JP
- Japan
- Prior art keywords
- liquid developer
- area
- electrified
- toner
- transparent conductive
- 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
- 238000000034 method Methods 0.000 title claims description 7
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 108091008695 photoreceptors Proteins 0.000 claims description 19
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims 1
- 238000004140 cleaning Methods 0.000 abstract description 7
- 150000002500 ions Chemical class 0.000 abstract description 6
- 238000013019 agitation Methods 0.000 abstract description 2
- 239000002800 charge carrier Substances 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 abstract description 2
- 238000005192 partition Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Electrophotography Using Other Than Carlson'S Method (AREA)
- Developing For Electrophotography (AREA)
- Wet Developing In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
（１）発明の属する技術分野
本発明は、電子写真記録の現像において、帯電・露光・
現像・クリーニングをほぼ同時に１つのプロセスで行う
画像形成方法に関するものである。Detailed Description of the Invention (1) Technical field to which the invention pertains The present invention relates to charging, exposure, and
The present invention relates to an image forming method in which development and cleaning are performed almost simultaneously in one process.
（２）従来技術
透明導電性支持体と光導電層とからなる感光体を用いて
透明導電性支持体側から光像照射を行い現像する方法と
して、すでに「電子写真」 （井守出版 昭和４８年ｐ
、６５）で提案されている。第３図にその原理図を示す
、金属芯５の外側を半導体４で塗膜した金属ローラ６で
、液体現像剤７を光導電層２表面に与える。透明導電性
支持体１とローラの金属芯５との間に電圧が加えられる
。照射領域における光導電Ｍ２で、光が照射された所で
は光導電Ｎ２の表面と半導体４との間の電位降下が増大
する。これによってトナー粒子が金属ローラ６上の液体
膜から光導電層２の表面に引き出されることになる。暗
部では２つの表面の電位が極めて低い値を有するため、
液体膜から粒子を引きつけるに到らない、この方法では
、現像前にクリーニングを行う必要がある。さらに、半
導体上に液体フィルムの膜厚制御が困難であり、現像ギ
ャフプに対して高い精度が要求されるなどの問題がある
。(2) Prior art "Electrophotography" (Imori Publishing, 1972 p.
, 65). A liquid developer 7 is applied to the surface of the photoconductive layer 2 by a metal roller 6 whose outer side of a metal core 5 is coated with a semiconductor 4, the principle of which is shown in FIG. A voltage is applied between the transparent conductive support 1 and the metal core 5 of the roller. In the photoconductor M2 in the irradiated area, the potential drop between the surface of the photoconductor N2 and the semiconductor 4 increases where the light is irradiated. This causes the toner particles to be drawn from the liquid film on the metal roller 6 to the surface of the photoconductive layer 2. In the dark, the potentials of the two surfaces have extremely low values, so
This method, which fails to attract particles from the liquid film, requires cleaning before development. Furthermore, it is difficult to control the thickness of the liquid film on the semiconductor, and high precision is required for the development gap.
（３）発明の目的
本発明の目的は、液体現像器を用いて現像・帯電・露光
・クリーニングをほぼ同時に行うことで。(3) Purpose of the Invention The purpose of the present invention is to perform development, charging, exposure, and cleaning almost simultaneously using a liquid developing device.
高品質な記録を再現出来る小形電子写真装置用の画像形
成方法を捷供することにある。An object of the present invention is to provide an image forming method for a small electrophotographic device capable of reproducing high-quality records.
（４−１）発明の構成 本発明は、液体現像剤と感光体との接触領域で。(4-1) Structure of the invention The present invention is directed to the contact area between the liquid developer and the photoreceptor.
液体現像剤を強く撹拌させる領域と前記液体現像剤を弱
く撹拌させる領域とを設け９弱く撹拌させる領域で透明
導電性支持体側から光像照射を行うことを最も主要な特
徴とする。従来とは、現像部構成が異なる。The most important feature is that a region where the liquid developer is strongly stirred and a region where the liquid developer is weakly stirred are provided, and the light image is irradiated from the transparent conductive support side in the region where the liquid developer is weakly stirred. The structure of the developing section is different from the conventional one.
（４−２）実施例 第１図は１本発明の実施例を示したものである。(4-2) Example FIG. 1 shows an embodiment of the present invention.
透明導電性支持体１と光導電Ｎ２とからなる感光体８を
現像器９と近接させて液体現像剤を感光体８の表面に接
触させる。仕切り板１０は、液体現像剤を強く撹拌させ
る領域と弱く撹拌させる領域を仕切るためのものである
。撹拌器１１は一種のポンプの役目をしている。仕切り
板１０の右側の領域で感光体８の表面に対して液体現像
剤７が強く当たるように流速を大きくシ、仕切り仮１０
の左側の？ｉｌ域で感光体８の表面に対して液体現像剤
７か弱く当たるように流量を小さくするように。A photoreceptor 8 made of a transparent conductive support 1 and a photoconductor N2 is brought into close proximity to a developing device 9, and a liquid developer is brought into contact with the surface of the photoreceptor 8. The partition plate 10 is for partitioning a region where the liquid developer is strongly agitated and a region where the liquid developer is agitated weakly. The stirrer 11 serves as a kind of pump. The flow rate is increased so that the liquid developer 7 strongly hits the surface of the photoreceptor 8 in the area on the right side of the partition plate 10.
on the left side? The flow rate is made small so that the liquid developer 7 weakly hits the surface of the photoreceptor 8 in the il range.
仕切り板ｌＯと感光体８の表面との隙間を調整する。も
ちろん、ポンプ１１を仕切り板１０の左側の領域にも用
いて、２個のポンプの流量を調整して撹拌の強弱をつけ
ても良い。この場合には特別に仕切り仮ｌＯを用いる必
要はない。帯電バイアス電極板１２．現像バイアス電極
板１３は、感光体８表面に近接して設ける。第１図図示
での帯電バイアス１４．現像バイアスエ５はトナーが正
に帯電しているときは正バイアスが好ましいが、トナー
が負に帯電しているときは負バイアスが良いことは勿論
である。The gap between the partition plate lO and the surface of the photoreceptor 8 is adjusted. Of course, the pump 11 may also be used in the area on the left side of the partition plate 10, and the flow rates of the two pumps may be adjusted to vary the intensity of stirring. In this case, there is no need to use a special partition lO. Charging bias electrode plate 12. The development bias electrode plate 13 is provided close to the surface of the photoreceptor 8. Charging bias 14 as shown in FIG. When the toner is positively charged, a positive bias is preferable for the developing bias 5, but it goes without saying that a negative bias is preferable when the toner is negatively charged.
次に記録原理について説明する。液体現像剤としては３
ｗＡ縁性の液体、正イオン、負イオン５および正に帯電
したトナーから成るものを用いる。Next, the recording principle will be explained. 3 as a liquid developer
A liquid consisting of a positive ion, a negative ion 5 and a positively charged toner is used.
感光体８が図示矢印１７の如（移動されるものとし、現
像器９内の液体現像剤を強く撹拌させる領域にはいると
、残留トナー１６が強い流れによって感光体８表面から
引き離されてクリーニングを行うと同時に、帯電バイア
ス電極板１２に正の帯電バイアス１４を印加することで
負イオンを帯電バイアス電極板１２に吸着させ、かつ感
光体８表面に正イオンおよび正に帯電したトナーを吸着
させて感光体を帯電させる。帯電したトナーは強い流れ
のため引き離され、正イオンで十分帯電される。従って
、感光体が液体現像剤を弱く撹拌させる領域にはいって
も、十分に帯電しているために正に帯電したトナーは感
光体８表面に付着しない。When the photoreceptor 8 is moved as shown by the arrow 17 and enters an area where the liquid developer in the developing device 9 is strongly agitated, the residual toner 16 is pulled away from the surface of the photoreceptor 8 by a strong flow and cleaned. At the same time, by applying a positive charging bias 14 to the charging bias electrode plate 12, negative ions are adsorbed to the charging bias electrode plate 12, and positive ions and positively charged toner are adsorbed to the surface of the photoreceptor 8. The charged toner is separated by the strong flow and is sufficiently charged with positive ions.Therefore, even when the photoreceptor enters an area where the liquid developer is weakly agitated, it remains sufficiently charged. Therefore, positively charged toner does not adhere to the surface of the photoreceptor 8.
その領域で、ｉ３明導電性支持体１側から、光像照射３
を行うと感光層中に正・負の電荷キャリアーが励起され
て負ｇ１荷が帯電電荷を中和し、感光体８表面の電位が
下がる。現像バイアス電極板１３は正バイアスされてい
るので、現像バイアス電極板１３と感光体８の表面との
間に電界が生し、正に帯電したトナーが感光体８表面に
付着する。この領域は撹拌が緩いので、付着したトナー
は取り除かれない、このようにして、現像器９で帯電・
露光・現像・クリーニングをほぼ同時に行うことが出来
る。In that area, light image irradiation 3 is applied from the i3 bright conductive support 1 side.
When this is done, positive and negative charge carriers are excited in the photosensitive layer, the negative g1 charge neutralizes the charged charge, and the potential on the surface of the photosensitive member 8 decreases. Since the developing bias electrode plate 13 is positively biased, an electric field is generated between the developing bias electrode plate 13 and the surface of the photoreceptor 8, and positively charged toner adheres to the surface of the photoreceptor 8. Since the agitation is slow in this area, the attached toner is not removed.In this way, the developing unit 9 charges and
Exposure, development, and cleaning can be performed almost simultaneously.
第２図は、仕切り板１０を取り除き、ポンプ１１を現像
器９の右側に寄せて、液体現像剤を強く撹拌させる領域
と弱く撹拌させる領域を設けた実施例を示す、矢印１７
は、液体の流れを示している。FIG. 2 shows an embodiment in which the partition plate 10 is removed and the pump 11 is moved to the right side of the developing device 9 to provide an area where the liquid developer is strongly agitated and an area where the liquid developer is agitated weakly.
indicates the flow of liquid.
（５）発明の詳細
な説明したように２本発明によれば、液体現像剤と感光
体との接触領域で、液体現像剤を強く撹拌させる領域と
前記液体現像剤を弱く撹拌させる領域とを設け１弱く撹
拌させる領域で透明導電性支持体側から光像照射を行う
ことで、現像・帯電・露光・クリーニングをほぼ同時に
行うことができ、高品質な記録を再現出来る小形電子写
真装置を提供できる利点がある。(5) As described in detail of the invention, according to the second invention, in the contact area between the liquid developer and the photoreceptor, there is a region where the liquid developer is strongly agitated and a region where the liquid developer is weakly agitated. By irradiating a light image from the side of the transparent conductive support in the weakly stirred region (1), development, charging, exposure, and cleaning can be performed almost simultaneously, making it possible to provide a compact electrophotographic device that can reproduce high-quality recordings. There are advantages.
第１図は第１の実施例の構成図、第２図は第２の実施例
の構成図、第３図は従来例を示したものである。
ｌ：透明導電性支持体、−２＝光導電層。
３：光像照射、 ７：液体現像剤。
８：感光体、 ９：現像器。
１０：仕切り板、１１：ポンプ。
１２：帯電バイアス電極板。
１３：現像バイアス電極板、１４：帯電バイアス。
１５：現像バイアス、１６：残留トナー。
１７；感光体８の移動方向。
特許出願人 日本電信電話株式会社FIG. 1 is a block diagram of a first embodiment, FIG. 2 is a block diagram of a second embodiment, and FIG. 3 is a diagram of a conventional example. l: transparent conductive support, -2=photoconductive layer. 3: Light image irradiation, 7: Liquid developer. 8: Photoreceptor, 9: Developing device. 10: Partition plate, 11: Pump. 12: Charged bias electrode plate. 13: Development bias electrode plate, 14: Charging bias. 15: Development bias, 16: Residual toner. 17; direction of movement of photoreceptor 8; Patent applicant Nippon Telegraph and Telephone Corporation
Claims (1)
、透明導電性支持体側から光像照射を行い現像する電子
写真記録法において、 電圧が印加された液体現像剤を感光体に接触させ、液体
現像剤と感光体との接触領域で、液体現像剤を強く撹拌
させる領域と前記液体現像剤を弱く撹拌させる領域とを
設け、 弱く撹拌させる領域で透明導電性支持体側から光像照射
を行う ことを特徴とする画像形成方法。[Scope of Claims] In an electrophotographic recording method in which a photoreceptor consisting of a transparent conductive support and a photoconductive layer is used and development is performed by irradiating a light image from the side of the transparent conductive support, liquid development to which a voltage is applied. A contact area between the liquid developer and the photoreceptor is provided with a region where the liquid developer is strongly agitated and a region where the liquid developer is weakly agitated, and a transparent conductive material is provided in the region where the liquid developer is agitated weakly. An image forming method characterized in that a light image is irradiated from the support side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30403387A JP2610908B2 (en) | 1987-12-01 | 1987-12-01 | Image forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30403387A JP2610908B2 (en) | 1987-12-01 | 1987-12-01 | Image forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01144082A true JPH01144082A (en) | 1989-06-06 |
| JP2610908B2 JP2610908B2 (en) | 1997-05-14 |
Family
ID=17928249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30403387A Expired - Fee Related JP2610908B2 (en) | 1987-12-01 | 1987-12-01 | Image forming method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2610908B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485991A (en) * | 2019-09-12 | 2021-03-12 | 东芝泰格有限公司 | Image forming apparatus with a toner supply device |
-
1987
- 1987-12-01 JP JP30403387A patent/JP2610908B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485991A (en) * | 2019-09-12 | 2021-03-12 | 东芝泰格有限公司 | Image forming apparatus with a toner supply device |
| CN112485991B (en) * | 2019-09-12 | 2023-12-19 | 东芝泰格有限公司 | Image forming apparatus having a plurality of image forming units |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2610908B2 (en) | 1997-05-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |