JPS58111952A - Multicolor printing method - Google Patents
Multicolor printing methodInfo
- Publication number
- JPS58111952A JPS58111952A JP56209324A JP20932481A JPS58111952A JP S58111952 A JPS58111952 A JP S58111952A JP 56209324 A JP56209324 A JP 56209324A JP 20932481 A JP20932481 A JP 20932481A JP S58111952 A JPS58111952 A JP S58111952A
- Authority
- JP
- Japan
- Prior art keywords
- color
- photoreceptor
- latent images
- electrostatic latent
- latent image
- 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
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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0142—Structure of complete machines
- G03G15/0147—Structure of complete machines using a single reusable electrographic recording member
- G03G15/0152—Structure of complete machines using a single reusable electrographic recording member onto which the monocolour toner images are superposed before common transfer from the recording member
-
- 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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0142—Structure of complete machines
- G03G15/0147—Structure of complete machines using a single reusable electrographic recording member
- G03G15/0152—Structure of complete machines using a single reusable electrographic recording member onto which the monocolour toner images are superposed before common transfer from the recording member
- G03G15/0163—Structure of complete machines using a single reusable electrographic recording member onto which the monocolour toner images are superposed before common transfer from the recording member primary transfer to the final recording medium
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Abstract
Description
【発明の詳細な説明】
発明の技術分野
本発明はたとえば晋通紙に多色印字が行なえる現倫剤転
写型電子写真方式等における多色印字方法に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to a multicolor printing method, such as in a liquid transfer type electrophotographic system, which can perform multicolor printing on, for example, Shintsu paper.
発明の技術的背景とその問題点
最近ではカラー表示装置が実用化されるようにな）、ハ
ードコピー装置４カラー化の要求が高まりつつある。そ
こで、たとえば電子写真方式における多色レーデプリン
タとして＊Ｆｊａ＠５５−８３０６９号公報や特開昭５
５−８３０７０号公報等の技術が考案されている。しか
しながら、これらの技術は２色印字の場合でＴｏヤ、普
通の文字を黒色に、枠等を實色に、マイナス数字等を赤
色に印字する場合尋の３色以上の印字を行なうことがで
きない。しかし、特開昭５５−８３０６９号公報の場合
には、第３の静電潜像を形成する光学系とＩ！３色目の
現像装置を追加すれば３色印字は可能になるが、３系統
の光学系が必要となるので装置が横細化し高価格となる
欠点がある。また、光学系の数を減らして多色印字を行
なう方法としては特公昭５４−８２２４２号公報の技術
があるが、この技術では現像剤を重ねる方式であるため
、鮮明な青や鮮明な赤等のように２色を同時に印字する
ことが困難である。TECHNICAL BACKGROUND OF THE INVENTION AND THE PROBLEMS Recently, color display devices have come into practical use), and the demand for four-color hard copy devices is increasing. Therefore, for example, *Fja@55-83069 and Japanese Unexamined Patent Publication No. 5
Techniques such as Japanese Patent No. 5-83070 have been devised. However, these technologies cannot print in more than three colors when printing in two colors, and when printing ordinary characters in black, frames, etc. in real color, and printing negative numbers in red. . However, in the case of JP-A-55-83069, the optical system that forms the third electrostatic latent image and the I! If a third color developing device is added, three-color printing becomes possible, but since three systems of optical systems are required, the device becomes narrower and more expensive. In addition, there is a technique disclosed in Japanese Patent Publication No. 54-82242 as a method for multicolor printing by reducing the number of optical systems, but since this technique uses a method in which developer is layered, vivid blue, vivid red, etc. It is difficult to print two colors at the same time, such as in
発明の目的
本発明は上記事情にもとづいてなさ・れたもので、その
目的とするところは、光学系の簡単化および混色の防止
を図れ、以て簡単な構造で鮮明な多色印字を得ることが
できるようにした多色印字方法を提供することにある。Purpose of the Invention The present invention was made based on the above circumstances, and its purpose is to simplify the optical system and prevent color mixture, thereby obtaining clear multicolor printing with a simple structure. The purpose of the present invention is to provide a multicolor printing method that enables printing.
発明の概要
本発明は第２と第３の色の情報光を１つの光学系から照
射し、しかも第２と＠３の静電潜像の現像の際＠２と＠
３の色の現像剤が第１の静電＃儂に付着しないように・
したものである。Summary of the Invention The present invention irradiates information light of second and third colors from one optical system, and furthermore, when developing the second and @3 electrostatic latent images, @2 and @
To prevent the third color developer from adhering to the first electrostatic #1,
This is what I did.
発明の実施例
以下、本発明の一実施例を図面を参照しながら説明する
。第１図は電子写真装置を概略的に示すもので、１はド
ラム状の感光体である。この感光体１の周囲には感光体
１０回転方向に沿って１−に帯電器２、＠１の光学系３
、＠ｌの現像装置４、第２の光学系５、！！２の現像装
置−１＠３の現像装置１、転写前帯電装置ｔ８、転写装
置９およびクリーニング装置１０・が配置されている。Embodiment of the Invention An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 schematically shows an electrophotographic apparatus, in which 1 is a drum-shaped photoreceptor. Around this photoreceptor 1, along the rotation direction of the photoreceptor 10, there is a charger 2 at 1-, an optical system 3 at @1.
, @l developing device 4, second optical system 5,! ! 2 developing device-1@3 developing device 1, pre-transfer charging device t8, transfer device 9, and cleaning device 10 are arranged.
なお、１１は給紙１ｉ１１から給紙された転写紙Ｐの移
送路である。Note that 11 is a transport path for the transfer paper P fed from the paper feed 1i11.
上記帯電器２は感光体１の表面を均一に帯電するように
なっている。The charger 2 is designed to uniformly charge the surface of the photoreceptor 1.
上記第１の光学系３は第１の半導体レーデ発信装置１３
より発信されたｗＭｌの色の印字情報光を第１の結像レ
ンズ１４を介して第１の回転鏡走査装置１５に入光し、
この第１の回転鏡走査装置１５にて偏光して感光体１上
を露光走査することにより露光部分に第１の静電潜像１
−を形成するようになっている。The first optical system 3 includes a first semiconductor radar transmitter 13
The printed information light of the color wMl transmitted from the camera enters the first rotating mirror scanning device 15 via the first imaging lens 14,
The first rotating mirror scanning device 15 polarizes the light and scans the photoreceptor 1 for exposure, thereby forming a first electrostatic latent image 1 on the exposed area.
− is formed.
上記８１！２の光学系５は第２の半導体レーデ発信装置
１７より発信された第２と第３の色の印字情報光を第２
の結像レンｊｅ１８′ｔ−介して第２の回転鏡走査装置
１＃に入光し、この第２の回転鏡走査装置１＃にて偏光
して感光体１上を露光走査することによル第２の色の情
報光の露光部分以外の部分に第２の静電ａ像２０を形成
するとともに＠３０色の情報光の露光部分に第３の静電
潜像１１を形成するようになっている。The optical system 5 of 81!2 transmits the print information light of the second and third colors transmitted from the second semiconductor radar transmitter 17 to a second
The light enters the second rotating mirror scanning device 1# through the imaging lens je18't-, is polarized by the second rotating mirror scanning device 1#, and is exposed and scanned on the photoreceptor 1. A second electrostatic latent image 20 is formed in a portion other than the exposed portion of the information light of the second color, and a third electrostatic latent image 11 is formed in the exposed portion of the information light of @30 colors. It has become.
しかも、上記ｌＩ２の色の情報光による露光量は上記＠
１の色の情報光による露光量と等しく設定されている。Moreover, the exposure amount of the information light of the color lI2 is the @
The exposure amount is set equal to the exposure amount of information light of one color.
上記第１．第２および第３の現像装置４８６゜ｒは、第
１と第３の現像装置４．１が反転現像を、ｌ！２の現像
装置Ｃが正規現像をそれぞれ行なうとともに、少なくと
も第２と第３の現像装置６．１が非接触現像を行表うよ
うになりている。そして、第１の現像装置４は第１の静
電潜像１＃を１ｇｌの色の現像剤２２で、第２の現像装
置６はＩＩ２の静電潜像２０ｆ：第２の色の現像剤ｊＪ
で、＠３の現像装置１は第３の静電潜像２１を１！３０
色の現像剤２４でそれぞれ現像するようになっている。Above 1. The second and third developing devices 486°r are arranged so that the first and third developing devices 4.1 perform reversal development, and l! The two developing devices C perform regular development, and at least the second and third developing devices 6.1 perform non-contact development. The first developing device 4 uses 1 g of the first electrostatic latent image 1# of the color developer 22, and the second developing device 6 uses the second color developer 20f of the electrostatic latent image II2. jJ
Then, the developing device 1 of @3 develops the third electrostatic latent image 21 by 1!30
The images are developed using developer 24 of each color.
上記転写前帯電装置８は感光体１上に付着した＠１ 、
＠２および第３の色の現像剤２２゜２３．２４１−同一
の極性に帯電させるようになっている口
しかして、感光体、１０回転に伴って先ず感光体１０表
面に帯電器２によって暗所で第２ＦＡＨ）に示すように
均一に電荷ｖ１が与えられる。ついで、感光体１０表面
は第１の光学系３にて第１の色の印字情報光で表面電位
が第２図（ロ）に示すようにｖｌのほぼ捧のｖｓの電位
に減衰するように露光走査され、この露光部分にｗｃｌ
の静電潜像１６が形成される。ついで、１１！１の静電
ｆ＠＠１６が＃！ｌの現像装置４で第１の色に現像され
る。この場合、第１の現像装置４は、感光体１の表面電
位と同極性の第１の色の現像剤２２を用い、現像バイア
スとしてほぼＶ、に近い直の電圧を印加して反転現像を
行なう、ついで、感光体１の表面は第２の光学系５にて
第１と第２の色の印字情報光で２段階の露光量に露光走
査される。すなわち、第２図（ハ）に示すように、第２
の色の印字情報光で表面電位がｖｌのほぼ輪のＶ、の電
位に減衰されるように露光走査され、この露光部分以外
の部分に第２の静電ｖ１のｔまにするとともに、白地と
して現像しない部分はほぼｖｌの棒のｖｌの電位に減衰
するように露光される。一方、第３の色の印字情報光で
表面電位が＃１ぼ０Ｖ（Ｖｏ ）の電位に減衰するよう
に露光走査され、この露光部分に第３の静電潜像２１が
形成される。ついで、ｗ、２の静電４＠ｚｏが第２の色
に現像される。この場合、第２の現像装置６は、感光体
１０表面電位と逆極性の第２の色の現像剤２３を用い、
現像バイアスとしてｖｌより少し高い電圧を印加して正
規現像を行なう。ついで、第３の静電潜像２１が第３の
色に現像される。こ２の場合、第３の現像装置１は、感
光体１０表面電位と同極性の第３の色の現像剤２４を用
い、現像バイアスとしてｖｌより少し低い電圧を印加し
て反転現像を行なう。ついで、第１．第２．第３の静電
潜像１６．：１０．２１をそれぞれ現像すべく感光体１
上に付着した！！１．第１．第３の色の現像剤１２．２
３．１４は転写前帯電装置１にて同一の極性に帯電され
、ついで転写装置９にて転写紙Ｐに転写され、図示しな
い定着器で′定着される。一方、転写後の感光体Ｊの表
面はクリーニング装置１０にてクリーニングされる。The pre-transfer charging device 8 is attached to the photoreceptor 1 @1,
@ 2nd and 3rd color developers 22゜23.241 - They are designed to be charged to the same polarity.However, as the photoreceptor rotates 10 times, the surface of the photoreceptor 10 is first darkened by the charger 2. However, as shown in the second FAH), charge v1 is uniformly applied. Next, the surface of the photoreceptor 10 is exposed to the first color printing information light by the first optical system 3 so that the surface potential is attenuated to a potential of VS, which is approximately the same as Vl, as shown in FIG. 2(B). The exposure is scanned and wcl is applied to this exposed area.
An electrostatic latent image 16 is formed. Next, the electrostatic f@@16 of 11!1 is #! The first color is developed by the developing device 4 of 1. In this case, the first developing device 4 uses a developer 22 of the first color having the same polarity as the surface potential of the photoreceptor 1, and applies a direct voltage close to V as a developing bias to perform reversal development. Then, the surface of the photoreceptor 1 is exposed and scanned by the second optical system 5 with the printing information light of the first and second colors at two levels of exposure amount. That is, as shown in Figure 2 (c), the second
Exposure scanning is performed using printed information light of color so that the surface potential is attenuated to a potential of V, which is approximately the ring of vl, and a second electrostatic charge is applied to the area other than this exposed area by v1 of t, and the white background is The undeveloped portion is exposed to light so as to be attenuated to a potential of approximately vl of the rod of vl. On the other hand, exposure scanning is performed with the third color print information light so that the surface potential is attenuated to a potential of about #1 to 0 V (Vo), and a third electrostatic latent image 21 is formed in this exposed portion. The electrostatic charge 4@zo of w,2 is then developed into a second color. In this case, the second developing device 6 uses a second color developer 23 having a polarity opposite to the surface potential of the photoreceptor 10.
Regular development is performed by applying a voltage slightly higher than vl as a developing bias. Third electrostatic latent image 21 is then developed in a third color. In this second case, the third developing device 1 performs reversal development by using a third color developer 24 having the same polarity as the surface potential of the photoreceptor 10 and applying a voltage slightly lower than vl as a developing bias. Next, the first. Second. Third electrostatic latent image 16. :10. Photoreceptor 1 to develop 21 respectively.
It got stuck on top! ! 1. 1st. Third color developer 12.2
3.14 are charged to the same polarity by the pre-transfer charging device 1, then transferred to the transfer paper P by the transfer device 9, and fixed by a fixing device (not shown). On the other hand, the surface of the photoreceptor J after the transfer is cleaned by a cleaning device 10.
なお、上記実施例では、電子写真方式に適用したが、本
発明はこれに限ることなく、他の記録方式、たとえば静
電記録方式で最初に静電記録体を一様に帯電し、ついで
記録情報にもとづいて除電する方式にも適用してもよく
、また現像剤偉を転写する方式に限らず、記録体に直接
記録する方式にも適用できることは勿論である。In the above embodiment, the present invention is applied to an electrophotographic method, but the present invention is not limited to this, and can be applied to other recording methods, such as an electrostatic recording method, in which an electrostatic recording medium is first uniformly charged and then recorded. The present invention may also be applied to a method of eliminating static electricity based on information, and is of course applicable not only to a method of transferring a developer layer but also to a method of directly recording on a recording medium.
発明の詳細
な説明したように本発明によれば、感光体の表面を均一
に帯電する第１の工程と、上記感光体の表面を＠ｌの色
の情報光で露光することにより露光部分に第１の静電潜
像を形成する第２の工程と、上記＠１の静電潜像を第１
の色に現像する第３の工程と、上記感光体の表面を第２
の色の情報光で露光することによυ露光部分以外の部分
にＩＩ２の静電潜像を形成するとともに＠３の色の情報
光で露光することにより露光部分ＫＩＩ３の静電潜像を
形成する第４の工程と、上記第２の静電潜像を第２の色
に、上記第３の静電潜像を＠３０色にそれぞれ現像する
第５の工程とを具備し、上記＠１と第２の色の情報光に
よる露光量を等しくしたから、第２と第３の情報光を１
つの光学系から照射でき、しかも第２と第３の静電ｍ儂
の現像の際第２と第３の色の現像剤が第１の静電潜像に
付着するのを防止することができる。したがって、光学
系の簡単化および混色の防止を図れ、以て簡単な構造で
鮮明な多色印字を得ることができる等優れた効果を奏す
る。DETAILED DESCRIPTION OF THE INVENTION According to the present invention, as described above, the first step is to uniformly charge the surface of the photoreceptor, and the surface of the photoreceptor is exposed to information light of the color @l, thereby charging the exposed portion. a second step of forming a first electrostatic latent image; and a second step of forming a first electrostatic latent image;
A third step of developing the photoreceptor to a color of
By exposing with the information light of the color υ, an electrostatic latent image of II2 is formed in the part other than the exposed part, and by exposing with the information light of the color @3, an electrostatic latent image of the exposed part KII3 is formed. and a fifth step of developing the second electrostatic latent image in a second color and the third electrostatic latent image in @30 colors, Since the exposure amount of the information light of the second color and the second color are made equal, the second and third information light are 1
It can be irradiated from one optical system, and it is possible to prevent the second and third color developers from adhering to the first electrostatic latent image during the second and third electrostatic development. . Therefore, the optical system can be simplified and color mixing can be prevented, resulting in excellent effects such as being able to obtain clear multicolor printing with a simple structure.
同実施例の作用説明図である。
（・・・感光体、２・・・帯電器、３・・・＠ｌの光学
系、４・・・第１の現像装置、５・・・第２の光学系、
＃−・・第２の現像装置、１・・・第３の現像装置、１
６・・・第１の静電潜像、２０・・・＠２の静電潜像、
２１・・・第３の静電潜像、２２・・・第１の色の現像
剤、２３・・・第２の色の現像剤、２４・・・第３の色
の現像剤。It is an explanatory diagram of the operation of the same embodiment. (...photoreceptor, 2...charger, 3...@l optical system, 4...first developing device, 5...second optical system,
#-...Second developing device, 1...Third developing device, 1
6...first electrostatic latent image, 20...@2 electrostatic latent image,
21...Third electrostatic latent image, 22... Developer of first color, 23... Developer of second color, 24... Developer of third color.
Claims (1)
体の表面を第１の色の情報光で露光することにより露光
部分に−ｌの静電潜像を形成する第２の工程と、上記第
１の静電潜像を第１の色に現像する＠３の工程と、上記
感光体の表面を第２の色の情報光で露光することにより
露光部分以外の部分ＫＭ２の静電潜像を形成するととも
に輔３０色の情報光で露光することによ〉露光部分に第
３の静電潜像を形成する第４の工程と、上記第２の静電
潜像を第２の色に、上記第３の静電潜像を第３の色にそ
れぞれ現像する＠５の工程とを具備し、上記第１と第２
の色の情報光による露光量を等しくしたことを特徴とす
る多色印字方法。A first step of uniformly charging the surface of the photoreceptor, and a second step of forming an electrostatic latent image of -l on the exposed portion by exposing the surface of the photoreceptor to information light of a first color. and step @3 of developing the first electrostatic latent image in a first color, and exposing the surface of the photoreceptor to information light of a second color to develop the static image in the portion KM2 other than the exposed portion. a fourth step of forming a third electrostatic latent image in the exposed area by forming an electrostatic latent image and exposing it to information light of 30 colors; and the step @5 of developing the third electrostatic latent image into a third color, respectively, the first and second
A multicolor printing method characterized by equalizing the exposure amount of information light of each color.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56209324A JPS58111952A (en) | 1981-12-25 | 1981-12-25 | Multicolor printing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56209324A JPS58111952A (en) | 1981-12-25 | 1981-12-25 | Multicolor printing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58111952A true JPS58111952A (en) | 1983-07-04 |
| JPH0145915B2 JPH0145915B2 (en) | 1989-10-05 |
Family
ID=16571055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56209324A Granted JPS58111952A (en) | 1981-12-25 | 1981-12-25 | Multicolor printing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58111952A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60252374A (en) * | 1984-05-29 | 1985-12-13 | Matsushita Electric Ind Co Ltd | Color image forming method |
| JPS63180971A (en) * | 1987-01-23 | 1988-07-26 | Fuji Xerox Co Ltd | Copying device |
| JPS63180972A (en) * | 1987-01-23 | 1988-07-26 | Fuji Xerox Co Ltd | Copying device |
| JPS63180975A (en) * | 1987-01-23 | 1988-07-26 | Fuji Xerox Co Ltd | Copying device |
| JPS63180976A (en) * | 1987-01-23 | 1988-07-26 | Fuji Xerox Co Ltd | Copying device |
| JPH0342685A (en) * | 1989-06-29 | 1991-02-22 | Xerox Corp | Method of forming highlight color image |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5538561A (en) * | 1978-09-13 | 1980-03-18 | Fujitsu Ltd | High speed multicolor printing system |
-
1981
- 1981-12-25 JP JP56209324A patent/JPS58111952A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5538561A (en) * | 1978-09-13 | 1980-03-18 | Fujitsu Ltd | High speed multicolor printing system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60252374A (en) * | 1984-05-29 | 1985-12-13 | Matsushita Electric Ind Co Ltd | Color image forming method |
| JPH0554676B2 (en) * | 1984-05-29 | 1993-08-13 | Matsushita Electric Ind Co Ltd | |
| JPS63180971A (en) * | 1987-01-23 | 1988-07-26 | Fuji Xerox Co Ltd | Copying device |
| JPS63180972A (en) * | 1987-01-23 | 1988-07-26 | Fuji Xerox Co Ltd | Copying device |
| JPS63180975A (en) * | 1987-01-23 | 1988-07-26 | Fuji Xerox Co Ltd | Copying device |
| JPS63180976A (en) * | 1987-01-23 | 1988-07-26 | Fuji Xerox Co Ltd | Copying device |
| JPH0342685A (en) * | 1989-06-29 | 1991-02-22 | Xerox Corp | Method of forming highlight color image |
| EP0405991B1 (en) * | 1989-06-29 | 1994-08-03 | Xerox Corporation | Extention of tri-level xerography to black plus 2 colors |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0145915B2 (en) | 1989-10-05 |
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