JPH0288254A - Electrophotographic recorder - Google Patents
Electrophotographic recorderInfo
- Publication number
- JPH0288254A JPH0288254A JP24006088A JP24006088A JPH0288254A JP H0288254 A JPH0288254 A JP H0288254A JP 24006088 A JP24006088 A JP 24006088A JP 24006088 A JP24006088 A JP 24006088A JP H0288254 A JPH0288254 A JP H0288254A
- Authority
- JP
- Japan
- Prior art keywords
- photosensitive layer
- light
- toner
- irradiated
- photosensitive
- 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
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G17/00—Electrographic processes using patterns other than charge patterns, e.g. an electric conductivity pattern; Processes involving a migration, e.g. photoelectrophoresis, photoelectrosolography; Processes involving a selective transfer, e.g. electrophoto-adhesive processes; Apparatus essentially involving a single such process
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Electrophotography Using Other Than Carlson'S Method (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、複写機、プリンタ、ファクシミリ等に用いら
れる電子写真記録装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an electrophotographic recording device used in copying machines, printers, facsimile machines, and the like.
［従来の技術］
電子写真記録装置としては、いわゆるカールソンプロセ
スを用いたものが広く実用化されているが、近年上記カ
ールソンプロセスとは異なった記録原理を有したものも
研究されている。[Prior Art] As electrophotographic recording apparatuses, those using the so-called Carlson process have been widely put into practical use, but in recent years, electrophotographic recording apparatuses having recording principles different from the above-mentioned Carlson process have also been studied.
上記非カールソンプロセスによる記録方法として、例え
ば特開昭６１−２５６３５８号公報に記載されたものが
ある。As a recording method using the non-Carlson process, there is one described, for example, in Japanese Patent Application Laid-Open No. 61-256358.
以下この記録方法について、第５図（側面図）、第６図
（正面図）を用いて説明を行う。This recording method will be explained below using FIG. 5 (side view) and FIG. 6 (front view).
同図において、１１は感光ユニットであり、これは、透
光性を有する支持体１１ａ１裏面電極１１ｂ、感光層１
１Ｃ１帯電電極ｌｉｄにより形成され、上記裏面電極１
１ｂおよび帯電電極ｌｉｄは所定の直流電位に保たれて
いる。１２は所定の直流電位に保たれた背面電極、１３
は記録紙等を用いた記録媒体、１６はトナーである。In the figure, reference numeral 11 is a photosensitive unit, which includes a light-transmitting support 11a, a back electrode 11b, and a photosensitive layer 1.
The back electrode 1 is formed by the 1C1 charging electrode lid.
1b and charging electrode lid are maintained at a predetermined DC potential. 12 is a back electrode maintained at a predetermined DC potential; 13
1 is a recording medium using recording paper or the like, and 16 is a toner.
光１４が上記感光層１１ｃに照射されると、光１４が照
射された部分の上記感光層１１ｃの抵抗が下がり、その
結果上記トナー１６に働く電界が強まり、クーロン力に
より上記トナー１６が上記記録媒体１３に向かって飛翔
し、記録媒体１３上にトナー像１６ａが形成され、記録
が行われる。When the photosensitive layer 11c is irradiated with the light 14, the resistance of the photosensitive layer 11c decreases in the portion irradiated with the light 14, and as a result, the electric field acting on the toner 16 is strengthened, and the toner 16 is moved to the recording state due to Coulomb force. It flies toward the medium 13, forms a toner image 16a on the recording medium 13, and performs recording.
［解決しようとする課題］
上記従来の電子写真記録装置では、光照射により飛翔す
るトナー１６には放射状の電界が働き、トナー１６は上
記電界に従い放射状に飛翔する。[Problems to be Solved] In the conventional electrophotographic recording apparatus described above, a radial electric field acts on the toner 16 that flies due to light irradiation, and the toner 16 flies radially in accordance with the electric field.
従って記録媒体１３に付着したトナー像１６ａは、像が
大きくなる、あるいは像の周辺がぼけるため、上記従来
の電子写真記録装置では解像度のよい記録を得ることが
できなか９た。Therefore, the toner image 16a attached to the recording medium 13 becomes large or the periphery of the image becomes blurred, making it impossible to obtain high-resolution recording with the above-mentioned conventional electrophotographic recording apparatus.
本発明は上記従来の課題に対してなされたものであり、
解像度のよい電子写真記録装置を提供することを目的と
している。The present invention has been made to solve the above-mentioned conventional problems,
The purpose is to provide an electrophotographic recording device with good resolution.
［課題を解決するための手段］
本発明は、透光性を有する第１の支持体と、この第１の
支持体上に形成され所定の電位に保たれた第１の裏面電
極と、この第１の裏面電極上に形成された第１の感光層
と、この第一の感光層上に部分的に形成され所定の電位
に保たれた第１の帯電電極とから成る第１の感光ユニッ
トと、透光性を有する第２の支持体と、この第２の支持
体上に形成され所定の電位に保たれた第２の裏面電極と
、この第２の裏面電極上に形成された第２の感光°層と
、この第２の感光層上に部分的に形成され所定の電位に
保たれた第２の帯電電極とから成り、上記第１の支持体
ユニットに対向して設置された第２の感光ユニットと、
上記第１の感光ユニットと第２の感光ユニットとの間に
設置された記録媒体と、上記第１の感光ユニットの上記
第１の支持体側から上記第１の感光層に第１の光を照射
して光が照射された部分の上記第１の感光層の表面電位
を変化させる第１の光源と、上記第２の感光ユニットの
上記第２の支持体側から上記第２の感光層に第２の光を
照射して光が照射された部分の上記第２の感光層の表面
電位を変化させる第２の光源とからなり、上記第１の感
光層表面に被着させたトナーのうち、上記第１の光が照
射された部分の上記第１の感光層表面のトナーをクーロ
ン力により飛翔させ、上記記録媒体上にトナー像を形成
することを特徴とする電子写真記録装置により、上記目
的を達成するものである。[Means for Solving the Problems] The present invention provides a first support having translucency, a first back electrode formed on the first support and maintained at a predetermined potential, and a first back electrode formed on the first support and kept at a predetermined potential. A first photosensitive unit consisting of a first photosensitive layer formed on a first back electrode and a first charged electrode partially formed on this first photosensitive layer and kept at a predetermined potential. a second back electrode formed on the second support and kept at a predetermined potential; and a second back electrode formed on the second back electrode. It consists of a second photosensitive layer and a second charging electrode that is partially formed on the second photosensitive layer and maintained at a predetermined potential, and is placed opposite to the first support unit. a second photosensitive unit;
A first light is irradiated onto the first photosensitive layer from the recording medium installed between the first photosensitive unit and the second photosensitive unit and the first support side of the first photosensitive unit. a first light source that changes the surface potential of the first photosensitive layer in a portion irradiated with light; a second light source that irradiates light to change the surface potential of the second photosensitive layer in the irradiated portion, and the toner adhered to the surface of the first photosensitive layer, The above object is achieved by an electrophotographic recording apparatus characterized in that the toner on the surface of the first photosensitive layer in the portion irradiated with the first light is caused to fly by Coulomb force to form a toner image on the recording medium. It is something to be achieved.
［実施例］
以下図面に基き、本発明における一実施例の説明を行う
。[Example] An example of the present invention will be described below based on the drawings.
第１図（側面図）、第２図（正面図）、第３図（斜視図
）において、１は第１の感光ユニットで、これは、透光
性を有する第１の支持体１ａｓ透光性を有し所定の直流
電位（Ｖ Ｌｂ）に保たれた第１の裏面電極１ｂ、非晶
質シリコン等を用いた第１の感光層１ｃ、および所定の
直流電位（Ｖ ｌｄ）に保たれた第１の帯電電極１ｄよ
り成る。２は第２の感光ユニットで、これは、透光性を
有する第２の支持体２ａｓ透光性を有し所定の直流電位
（Ｖ２ｂ）に保たれた第２の裏面電極２ｂ１非晶質シリ
コン等を用いた第２の感光層２Ｃ％および所定の直流電
位（Ｖ ２ｄ）に保たれた第２の帯電電極２ｄより成る
。３は上記第１の感光ユニット１と第２の感光ユニット
２との間に設置された記録紙等の記録媒体、６は上記第
１の感光層ＩＣ上および第１の帯電電極ｌｄ上に被着さ
れたトナーである。In FIG. 1 (side view), FIG. 2 (front view), and FIG. 3 (perspective view), 1 is a first photosensitive unit, which is made of a first back electrode 1b which has a property and is maintained at a predetermined DC potential (VLb); a first photosensitive layer 1c made of amorphous silicon or the like; It consists of a first charging electrode 1d. 2 is a second photosensitive unit, which includes a second support 2as having a light-transmitting property; a second back electrode 2b1 having a light-transmitting property and kept at a predetermined DC potential (V2b); It consists of a second photosensitive layer 2C% using a photovoltaic material, etc., and a second charging electrode 2d maintained at a predetermined DC potential (V 2d). 3 is a recording medium such as a recording paper installed between the first photosensitive unit 1 and the second photosensitive unit 2, and 6 is a recording medium covered on the first photosensitive layer IC and the first charged electrode ld. This is the toner that has been applied.
まず、第１の光源４からの第１の光４ａおよび第２の光
源５からの第２の光５ａが共に照射されていないときは
、第１の感光層ＩＣの表面電位°Ｖｓｌｄは第１の帯電
電極１ｄの電位Ｖｌｄとはソ等しく （Ｖｓｌｄ ；；
Ｖｌｄ） 、第２の感光層２Ｃの表面電位Ｖｓ２ｄは第
２の帯電電極２ｄの電位Ｖ２ｄと、はゾ等しく （Ｖ
ｓ２ｄ ｚＶ２ｄ＞ 、トナー６は飛翔することはない
。First, when both the first light 4a from the first light source 4 and the second light 5a from the second light source 5 are not irradiated, the surface potential °Vsld of the first photosensitive layer IC is The potential Vld of the charging electrode 1d is equal to (Vsld;;
Vld), the surface potential Vs2d of the second photosensitive layer 2C is equal to the potential V2d of the second charging electrode 2d (V
s2d zV2d>, the toner 6 does not fly.
一方、第１の光４ａおよび第２の光５ａが共に照射され
ると、第１の感光層ＩＣおよび第２の感光層２ｃの抵抗
が大幅に低くなり、上記第１の光４ａおよび第２の光５
ａが照射された部分の上記第１の感光層ＩＣの表面抵抗
Ｖ ｓｉｐおよび第２の感光層２Ｃの表面抵抗Ｖ ｓ２
ｐは、それぞれ、はソ第１の裏面電極の電位Ｖｌｂおよ
び第２の裏面電極の電位Ｖ２ｂに等しくなる（ Ｖ ｓ
ｉｐ ＝ Ｖ ｌｂ、 Ｖ ｓ２ｐ、； Ｖ ２ｂ）。On the other hand, when the first light 4a and the second light 5a are irradiated together, the resistance of the first photosensitive layer IC and the second photosensitive layer 2c becomes significantly lower, and the resistance of the first light 4a and the second light 5a decreases significantly. light 5
The surface resistance V sip of the first photosensitive layer IC and the surface resistance V s2 of the second photosensitive layer 2C in the portion irradiated with a
p becomes equal to the potential Vlb of the first back electrode and the potential V2b of the second back electrode (V s
ip = V lb, V s2p,; V 2b).
また、光が照射されていない部分の第１の感光層ＩＣお
よび第２の感光層２Ｃの表面抵抗は、それぞれ、はり第
１の帯電電極１ｄの電位Ｖｌｄおよび第２の帯電電極２
ｄの電位Ｖ２ｄのま−である。従って、第１の光４ａが
照射された部分の第１の感光層１ｃの表面電位（Ｖ ５
ｌｌ） ｚ Ｖ ｌｂ）と、第２の光５ａが照射された
部分の第２の感光Ｊｉ２ｃの表面電位（Ｖ ｓ２Ｐ ｚ
Ｖ ２ｂ）との電位差Ｖｓｌｐ −Ｖｓ２１） Ｉ
Ｃ２１Ｖｌｂ−Ｖ２ｂｌ ）が、トナー６が飛翔する
のに十分な電位差であり、他の部分では、トナー６が飛
翔できない電位差であれば、トナー６は第１の光４ａが
照射された部分の第１の感光層１ｃの表面から第２の光
５ａが照射された部分の第２の感光層２ｃの表面に向か
ってのみ飛翔するため、トナー６は放射状に発散せずに
飛翔し、記録媒体３上には、周辺のぼけ等が大幅に低減
した解像度のよいトナー像６ａが記録される。Further, the surface resistance of the first photosensitive layer IC and the second photosensitive layer 2C in the portion not irradiated with light is the potential Vld of the first charged electrode 1d and the surface resistance of the second charged electrode 2, respectively.
d is at the potential V2d. Therefore, the surface potential (V 5
ll) z V lb) and the surface potential (V s2P z
Vslp −Vs21) I
C21Vlb-V2bl) is a potential difference sufficient for the toner 6 to fly, and if the potential difference in other parts is such that the toner 6 cannot fly, the toner 6 will be transferred to the first part of the part irradiated with the first light 4a. Since the toner 6 flies only from the surface of the photosensitive layer 1c toward the surface of the second photosensitive layer 2c that is irradiated with the second light 5a, the toner 6 does not scatter radially and flies onto the recording medium 3. A high-resolution toner image 6a with significantly reduced peripheral blur is recorded.
上記トナーの飛翔条件、すなわち、第１の光４ａが照射
された部分から第２の光５ａが照射された部分にのみト
ナーが飛翔するためには、トナーが飛翔するための最小
電位差をＶｊとし、第１図に示した各電位を用いると、
次式が成立すればよい。In order for the toner to fly only from the part irradiated with the first light 4a to the part irradiated with the second light 5a, the minimum potential difference for the toner to fly is set as Vj. , using each potential shown in Figure 1,
It suffices if the following formula holds true.
Ｉ Ｖｌｂ−Ｖ２ｂｌ ＞Ｖ ｔＩ Ｖｌｂ−Ｖ
２ｄｌ ＜Ｖｔ
Ｖｌｄ−Ｖ２ｂｌ ＜Ｖ ｔ
Ｉ Ｖｌｄ−Ｖ２ｄｌ ＜Ｖ ｔ
なお第１の光４ａと第２の光５ａは、それぞれ第１の感
光層１および第２の感光層２ｃに対して垂直に入射し、
しかも両光の光軸が一致することが好ましい。I Vlb-V2bl >V tI Vlb-V
2dl <Vt Vld-V2bl <V t I Vld-V2dl <V t Note that the first light 4a and the second light 5a are incident perpendicularly to the first photosensitive layer 1 and the second photosensitive layer 2c, respectively. death,
Moreover, it is preferable that the optical axes of both lights coincide.
ところで上記実施例は、第１の光４ａが照射された部分
から第２の光５ａが照射された部分へとトナーが飛翔す
るものであったが、本発明は上記のもの以外に、第１の
光が照射された部分から第２の光が照射されない部分へ
とトナーが飛翔するものでもよい。（従って第２の光が
照射された部分へはトナーは飛翔しない。）
第４図は、本発明の有効性を確かめるために行った計算
機シミュレーション結果の大略を示したものである。（
モデリング簡単化のため記録媒体は省いている。）
同図（ａ）は従来例に対応したもの、（ｂ）は本発明に
対応したものである。By the way, in the above embodiment, the toner flies from the part irradiated with the first light 4a to the part irradiated with the second light 5a. The toner may fly from the area irradiated with the second light to the area not irradiated with the second light. (Therefore, the toner does not fly to the area irradiated with the second light.) FIG. 4 schematically shows the results of a computer simulation conducted to confirm the effectiveness of the present invention. (
The recording medium is omitted to simplify modeling. ) In the same figure, (a) corresponds to the conventional example, and (b) corresponds to the present invention.
トナーの飛翔は実線で示したように、同図（ａ）では放
射状であるのに対し、同図（ｂ）ではほとんど垂直であ
る。特に同図（ｂ）では点線で示した電界Ｅの効果によ
り、飛跡が絞り込まれるようになっている。As shown by the solid line, the toner flight is radial in FIG. 2(a), whereas it is almost vertical in FIG. In particular, in FIG. 2B, the trajectory is narrowed down due to the effect of the electric field E shown by the dotted line.
以上のシミュレーション結果から、本発明の有効性、す
なわち、高解像度のトナー像形成が実現できることがわ
かる。From the above simulation results, it can be seen that the present invention is effective, that is, high-resolution toner image formation can be realized.
［発明の効果］
本発明によれば、記録媒体をはさんで対向する第１の感
光層および第２の感光層のそれぞれに光を照射すること
により、第１の感光層上のトナーを記録媒体に付着させ
るようにしたので、トナーは放射状に発散せずに飛翔し
、記録媒体上に解像度のよいトナー像の記録を得ること
ができる。[Effects of the Invention] According to the present invention, toner on the first photosensitive layer is recorded by irradiating light onto each of the first photosensitive layer and the second photosensitive layer that face each other with the recording medium in between. Since the toner is attached to the medium, the toner flies without being scattered radially, and a toner image with good resolution can be recorded on the recording medium.
第１図、第２図および第３図は本発明における一実施例
を示した側面図、正面図および斜視図、第４図は従来例
および本発明における飛跡のシミュレーション結果を示
した説明図、第５図および第６図それぞれは従来例の側
面図および正面図である。
１・・・・・・第１の感光二二ッ
１ａ・・・第１の支持体
１ｂ・・・第１の裏面電極
ＩＣ・・・第１の感光層
１ｄ・・・第１の帯電電極
２・・・・・・第２の感光ユニツ
２ａ・・・第２の支持体
２ｂ・・・第２の裏面電極
２Ｃ・・・第２の感光層
２ｄ・・・第２の帯電電極
３・・・・・・記録媒体
４・・・・・・第１の光源
５・・・・・・第２の光源
６・・・・・・トナー
６ａ・・・トナー像
ト
ド
以 上
出 願 人 株式会社精工舎1, 2, and 3 are a side view, a front view, and a perspective view showing one embodiment of the present invention, and FIG. 4 is an explanatory diagram showing the results of trajectory simulation in the conventional example and the present invention, 5 and 6 are a side view and a front view of the conventional example, respectively. 1...First photosensitive layer 221a...First support 1b...First back electrode IC...First photosensitive layer 1d...First charged electrode 2...Second photosensitive unit 2a...Second support 2b...Second back electrode 2C...Second photosensitive layer 2d...Second charged electrode 3. ...Recording medium 4...First light source 5...Second light source 6...Toner 6a...Toner image Todo Applicant Stock Company Seikosha
Claims (1)
形成され所定の電位に保たれた第１の裏面電極と、この
第１の裏面電極上に形成された第１の感光層と、この第
一の感光層上に部分的に形成され所定の電位に保たれた
第１の帯電電極とから成る第１の感光ユニットと、 透光性を有する第２の支持体と、この第２の支持体上に
形成され所定の電位に保たれた第２の裏面電極と、この
第２の裏面電極上に形成された第２の感光層と、この第
２の感光層上に部分的に形成され所定の電位に保たれた
第２の帯電電極とから成り、上記第１の支持体ユニット
に対向して設置された第２の感光ユニットと、 上記第１の感光ユニットと第２の感光ユニットとの間に
設置された記録媒体と、 上記第１の感光ユニットの上記第１の支持体側から上記
第１の感光層に第１の光を照射して光が照射された部分
の上記第１の感光層の表面電位を変化させる第１の光源
と、 上記第２の感光ユニットの上記第２の支持体側から上記
第２の感光層に第２の光を照射して光が照射された部分
の上記第２の感光層の表面電位を変化させる第２の光源
とからなり、 上記第１の感光層表面に被着させたトナーのうち、上記
第１の光が照射された部分の上記第１の感光層表面のト
ナーをクーロン力により飛翔させ、上記記録媒体上にト
ナー像を形成する ことを特徴とする電子写真記録装置。[Claims] A first support having light-transmitting properties, a first back electrode formed on the first support and maintained at a predetermined potential, and a first back electrode formed on the first support and kept at a predetermined potential. a first photosensitive unit comprising a first photosensitive layer formed and a first charged electrode partially formed on the first photosensitive layer and kept at a predetermined potential; a second support, a second back electrode formed on the second support and kept at a predetermined potential, a second photosensitive layer formed on the second back electrode, a second charged electrode partially formed on the second photosensitive layer and maintained at a predetermined potential; a second photosensitive unit disposed opposite to the first support unit; a recording medium placed between a first photosensitive unit and a second photosensitive unit; and irradiating the first light onto the first photosensitive layer from the first support side of the first photosensitive unit. a first light source that changes the surface potential of the first photosensitive layer in a portion irradiated with light; a second light source that irradiates light to change the surface potential of the second photosensitive layer in the irradiated portion; An electrophotographic recording apparatus characterized in that the toner on the surface of the first photosensitive layer irradiated with the first light is caused to fly by Coulomb force to form a toner image on the recording medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63240060A JPH0688422B2 (en) | 1988-09-26 | 1988-09-26 | Electrophotographic recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63240060A JPH0688422B2 (en) | 1988-09-26 | 1988-09-26 | Electrophotographic recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0288254A true JPH0288254A (en) | 1990-03-28 |
| JPH0688422B2 JPH0688422B2 (en) | 1994-11-09 |
Family
ID=17053887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63240060A Expired - Lifetime JPH0688422B2 (en) | 1988-09-26 | 1988-09-26 | Electrophotographic recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0688422B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59145160A (en) * | 1983-02-08 | 1984-08-20 | Canon Inc | Image recording apparatus |
| JPS62156674A (en) * | 1985-12-27 | 1987-07-11 | Seikosha Co Ltd | Electrophotographic recorder |
-
1988
- 1988-09-26 JP JP63240060A patent/JPH0688422B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59145160A (en) * | 1983-02-08 | 1984-08-20 | Canon Inc | Image recording apparatus |
| JPS62156674A (en) * | 1985-12-27 | 1987-07-11 | Seikosha Co Ltd | Electrophotographic recorder |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0688422B2 (en) | 1994-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS63243968A (en) | Electrophotographic recorder | |
| US4286032A (en) | Electrophotographic process and apparatus therefor | |
| JPH0288254A (en) | Electrophotographic recorder | |
| US3928669A (en) | Image-forming method | |
| JPS6064364A (en) | Method and device for image formation | |
| JP2630259B2 (en) | Image forming apparatus having toner scattering prevention function | |
| US5715503A (en) | Method and apparatus for scavenging carrier employing a magnetic field and erase radiation | |
| JP2632940B2 (en) | Transfer device | |
| JPH0310116B2 (en) | ||
| JPS59148077A (en) | Destaticization separating device for copy paper | |
| JPH08286505A (en) | Developing device | |
| JPH0246953B2 (en) | ||
| CA2275787A1 (en) | Liquid development apparatus | |
| JPH03294882A (en) | Developing device | |
| JPH01267573A (en) | Developing device | |
| JPH09222790A (en) | Developing device and image forming device | |
| JPS60165674A (en) | Recording device using photoconductive toner | |
| JPH0224671A (en) | Electrophotographic recording device | |
| JPS6118971A (en) | Recording method using photoconductive toner | |
| JP2001038958A (en) | Imaging apparatus | |
| JPS6117156A (en) | Recording method using photoconductive toner | |
| JPH05197312A (en) | Image recorder | |
| JPH04296852A (en) | Formation of image | |
| JPS60165672A (en) | Recording method of electrophotographic method or the like using photoconductive toner | |
| JP2001005292A (en) | Image forming device |