JPS587661A - Two color printer - Google Patents
Two color printerInfo
- Publication number
- JPS587661A JPS587661A JP56105451A JP10545181A JPS587661A JP S587661 A JPS587661 A JP S587661A JP 56105451 A JP56105451 A JP 56105451A JP 10545181 A JP10545181 A JP 10545181A JP S587661 A JPS587661 A JP S587661A
- Authority
- JP
- Japan
- Prior art keywords
- potential
- layer
- positive
- information
- photoreceptor
- 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)
- Photoreceptors In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は２色プリンタに係り、特にオフィスオートメー
ション機器関係等の出力端末として最適な２色プリンタ
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a two-color printer, and more particularly to a two-color printer that is most suitable as an output terminal for office automation equipment.
従来、電子写真技術とレーザとを用いたノンインパクト
プリンタとして、レーザビームプリンタがある。これは
レーザ光を情報信号に応じて変調し、さらに偏向するこ
とによシ２次元情報を画素分解の形で記録媒体上に形成
し、その後社既知の電子写真プロセスで記録画像を得る
ものであるＯこの場合２次元情報を画素分解の形で記録
するためＡｌｌの情報の合成、情報の削除あるいは各種
文字の大きさの変更といったことが容易に可能となる。Conventionally, there is a laser beam printer as a non-impact printer using electrophotographic technology and a laser. This method modulates laser light according to an information signal and further deflects it to form two-dimensional information on a recording medium in the form of pixel resolution, and then obtains a recorded image using the company's known electrophotographic process. In this case, since two-dimensional information is recorded in the form of pixel decomposition, it is easy to combine all information, delete information, or change the size of various characters.
しかしながら、記録画像上では同一色でプリントされる
ため、情報の識別が困難となる０また今後事務処理等に
おいて４７オーマツトと文書情報との区別あるいは、付
加情報、補足情報等と主要情報との区別といったことが
強く要求されてくるものと考えられる。However, since the recorded images are printed in the same color, it becomes difficult to identify the information.Furthermore, in the future, it will be difficult to distinguish between 47-o-mats and document information, or between additional information, supplementary information, etc. and main information. It is thought that such things will be strongly demanded.
本発明は、以上の点を考慮し異種情報の識別が可能であ
る新規な２色プリンタを提供することを目的とする。SUMMARY OF THE INVENTION In consideration of the above points, it is an object of the present invention to provide a new two-color printer that is capable of identifying different types of information.
本発明は、２色プリンタにおいて導電性支持体。The present invention relates to a conductive support in a two-color printer.
光導電層及び透明絶縁層から成る３層感光体上に、第１
の帯電次いで、又は同時に全面露光を行い、引続き第１
の帯゛電極性とは逆の極性で第２の帯電を行い、前記感
光体上に、第一の表面電位とは逆極性の表面電位を形成
し、３種類の情報に対応した３値レベルの光量で露光し
、それぞれ正電位。A first layer is placed on a three-layer photoreceptor consisting of a photoconductive layer and a transparent insulating layer.
Charging is then carried out, or at the same time, the entire surface is exposed, followed by the first
A second charge is performed with a polarity opposite to the polarity of the band, and a surface potential with a polarity opposite to the first surface potential is formed on the photoreceptor, and a ternary level corresponding to three types of information is generated. Exposure to a light amount of , each with a positive potential.
略零電位、負電位の静電潜像を形成し、２色情報に対応
した正負両電位部分をそれぞれ逆極性及び異色の荷電粒
子で現像することを特徴とする。It is characterized by forming an electrostatic latent image with approximately zero potential and negative potential, and developing both positive and negative potential portions corresponding to two-color information with charged particles of opposite polarity and different color, respectively.
以下、実施例を赤黒の２色プリントを例にとって詳細に
説明する。Hereinafter, an embodiment will be described in detail using a red and black two-color print as an example.
第１図は、本発明の２色プリンタの構成図である。３層
感光体■は導電性基板（ｌａ） 、光導電層（ｌｂ）
、透明絶縁層（１ｃ）とから成る。まず帯電器（２）と
ランプ（３）とを同時にオン状態とし、絶縁層（ＩＣ）
に負帯電を行う。このとき光導電層（１ｂ）は、全面露
光のために導化されているので、導電性基板から正電荷
が光導電層（１ｂ）に注入され、正電荷は絶縁層（１ｃ
）と光導電層（１ｂ）との界面に分布する。次に帯電器
（４）により１次帯電とは逆極性の２次帯電を施し、表
面′電位を負電位から正電位へ反転する。FIG. 1 is a block diagram of a two-color printer of the present invention. The three-layer photoreceptor ■ has a conductive substrate (la) and a photoconductive layer (lb).
, and a transparent insulating layer (1c). First, the charger (2) and the lamp (3) are turned on at the same time, and the insulating layer (IC) is turned on.
is negatively charged. At this time, since the photoconductive layer (1b) is made conductive for the entire surface exposure, positive charges are injected into the photoconductive layer (1b) from the conductive substrate, and the positive charges are transferred to the insulating layer (1c).
) and the photoconductive layer (1b). Next, a charger (4) applies secondary charging with a polarity opposite to that of the primary charging, thereby inverting the surface potential from negative to positive.
このような状態の３層感光体（１）を、光量が３段階の
レベルを持つ情報により露光し、黒・赤情報に対応した
正と負の静電潜像を形成する。この際、レーザ光源（６
）から発せられたレーザ光は、変ｖｊ４器（力を介して
上記各レベルに対応した光量に変換されさらに偏向器（
８）により偏向を受けた後、３層感光体（１）上を走査
する。次に現俸器（９）により互いに逆極性の荷電着色
トナー（例えば黒トナーと赤トナー）を用い、現像バイ
アスを＃１ぼ零にして現像を行い、２色画像を３層感光
体（１）上に形成する。The three-layer photoreceptor (1) in such a state is exposed to information having three levels of light intensity to form positive and negative electrostatic latent images corresponding to black and red information. At this time, the laser light source (6
) is converted into a light amount corresponding to each of the above levels through a deflector (
After being deflected by step 8), the three-layer photoreceptor (1) is scanned. Next, development is carried out using a developing device (9) using charged colored toners of opposite polarity (for example, black toner and red toner) with the developing bias set to #1 and zero, and the two-color image is transferred to the three-layer photoreceptor (1). ) to form on top.
その後帯電器α〔により、前記トナーの極性をそろえ、
帯電器α９に前記帯電器α１とは逆電圧を印加し、記録
紙（ｌａ上に２色画像を転写し、図示されていない定着
器により定着を行い、２色プリントを得る。After that, the polarity of the toner is aligned using a charger α,
A voltage opposite to that of the charger α1 is applied to the charger α9, and a two-color image is transferred onto recording paper (la), and is fixed by a fixing device (not shown) to obtain a two-color print.
一方３層感光体（１）は、繰返し使用のために除電ステ
ージ冒ンＱ国、クリーニングステージ冒ンα■をそれぞ
れ通りクリーニングが行われる。On the other hand, the three-layer photoreceptor (1) is cleaned by passing through a static elimination stage (Q) and a cleaning stage (α) for repeated use.
次ζ二この実施例での構成要素についてそれらの具体的
数値を示す。ＡＩの導電性基板上に６０μｍのＳｓ光導
電層を形成し、その上に（資）μのマイラ （ポリエチ
レンテレフタレートの商品名）を形成し３層感光体（１
）とする。まず、帯電器２に一５ＫＶを印加しながら数
十ｌｕｘ＊ｓｅｃの光量で全面露光を行い−５００〜−
６００ｖの表面電位を感光体上に形成する。Next, specific numerical values of the constituent elements in this example will be shown. A 60μm Ss photoconductive layer was formed on an AI conductive substrate, and a 60μm Mylar (trade name for polyethylene terephthalate) was formed on top of it to form a three-layer photoreceptor (1
). First, while applying -5KV to the charger 2, the entire surface is exposed to light with a light intensity of several tens of lux*sec.
A surface potential of 600v is created on the photoreceptor.
次に、帯電器（４）に十６ＫＶ印加することにより弗２
次帯電を行い、表面電位を反転させ３００〜４００ｖと
する。この状態でＡＩ＋レーザにより黒画像部は数十ｅ
ｒｇ／Ｃｄで露光し、白画像部は数ｅｒｇ／Ｃｔｌｌで
露光すること（二より、赤画像部では＋４００ Ｖ 、
黒画ｇ１１部では一３００Ｖ、白１ｊｉｉｉ偉部では
＋５０Ｖの表面電位が感光体上に形成された。この状態
の感光体をバイアス電位を＋５０Ｖにして正極性の黒色
トナーと負極性の赤色トナーからなる現像器でもって現
像すること（＝より赤と黒の２画像を感光体上に得る。Next, by applying 16 KV to the charger (4),
Next, charging is performed to invert the surface potential to 300 to 400V. In this state, the black image area is several tens of e by AI+laser.
Expose at rg/Cd, and expose at several erg/Ctll for the white image area (+400 V for the red image area,
A surface potential of -300 V was formed on the photoreceptor in the black part (g11) and +50 V in the white part (g11). The photoreceptor in this state is developed with a developing device consisting of a positive polarity black toner and a negative polarity red toner with a bias potential of +50 V (= two images of red and black are obtained on the photoreceptor).
これを既知の電子写真プロセスζ二より、普通紙上に転
与し、２色プリントを得た。This was transferred onto plain paper using the known electrophotographic process ζ2 to obtain a two-color print.
次に靜峨潜像形成プロセスについてＷｌｚ図を参照しな
がら詳細に説明する０
まず、第一次帯電と全面露光とを同時に行い、透明絶縁
層（ＩＣ）上に負帯電を行う。この時、光導＠Ｍ（ｌｂ
）は全ｆｆ１ｉｌ光のために導化され導電性基板から正
電荷が注入され、透明絶縁層（ｌｃ）と光導電層（１ｂ
）との界面に正電荷が保持される。次に第一次帯電とは
一逆極性で第二次帯電を行い、表面電位を負電位から正
電位に反転する。この状態の３層感光体■に黒、赤、白
に対応する光量で露光することにより黒画像部では光導
電層（１ｂ）が導化され、透明絶縁層（１ｃ）と光導電
層（１ｂ）との界面に保持されていた正電荷は透明絶縁
層（ｌｃ）上の負電荷により保持されている正電荷のみ
を残こして放電する。Next, the latent image forming process will be described in detail with reference to the Wlz diagram. First, primary charging and full-surface exposure are performed simultaneously to negatively charge the transparent insulating layer (IC). At this time, light guide @M (lb
) is conductive for total ff1il light, positive charge is injected from the conductive substrate, and the transparent insulating layer (lc) and the photoconductive layer (1b
) A positive charge is retained at the interface with Next, secondary charging is performed with a polarity opposite to that of the primary charging, and the surface potential is reversed from negative to positive. By exposing the three-layer photoconductor (1) in this state to light quantities corresponding to black, red, and white, the photoconductive layer (1b) in the black image area becomes conductive, and the transparent insulating layer (1c) and photoconductive layer (1b) ) is discharged, leaving only the positive charges held by the negative charges on the transparent insulating layer (lc).
その結果負の表面電位が生ずる。一方、赤画像部では光
がオフの状態であるので、第二次帯電時の表面電位を維
持し、正電位のままである。さらに白画像部は、光量が
黒画像部よシも少ないため、光導電層（１ｂ）は半導電
化し、透明絶縁層（１ｃ）と光導電層（１ｂ）との界面
の正＠＊は一部放電し、表面電位は略零になる。上記の
ようにして黒、赤、白の各画像部の表面電位が、それぞ
れ負、正、零になり、２色画像；；対応した静電潜像が
形成される。This results in a negative surface potential. On the other hand, since the light is off in the red image area, the surface potential at the time of secondary charging is maintained and remains at a positive potential. Furthermore, since the amount of light in the white image area is smaller than that in the black image area, the photoconductive layer (1b) becomes semi-conductive, and the positive @* of the interface between the transparent insulating layer (1c) and the photoconductive layer (1b) is the same. A partial discharge occurs, and the surface potential becomes approximately zero. As described above, the surface potentials of the black, red, and white image areas become negative, positive, and zero, respectively, and a two-color image; a corresponding electrostatic latent image is formed.
この場合のプロセスの表面電位の時間推移を示したのが
第３図である。このように正電位、零電位。FIG. 3 shows the time course of the surface potential in the process in this case. In this way, positive potential and zero potential.
負電位の電位レベルを形成することにより各レベルに対
応した着色粒子でもってｍｓすることによｐ２色画像を
得る。By forming negative potential levels, a p2 color image is obtained by performing ms with colored particles corresponding to each level.
次に他の実施例について説明する。前述の実施例では第
二次帯電後に２色画像に対応した光量で露光を行ってい
るが、これは帯電器（４）を帯電器（２）と同様に改良
し、第二次帯電同時像露光としてもなんら変わりはない
。また前述の実施例では、光導電層（ｌｂ）としてＳ・
系を考慮して、第一次帯電を負とした。しかしこれも光
導電Ｊｍ（ｌｂ）としてＣｄＳ。Next, other embodiments will be described. In the above-mentioned embodiment, exposure is performed with a light amount corresponding to a two-color image after the secondary charging, but in this case, the charger (4) is improved in the same way as the charger (2), and the secondary charging simultaneous image is There is no difference in exposure. Furthermore, in the above embodiment, the photoconductive layer (lb) is S.
Considering the system, the primary charge was set to be negative. However, this is also CdS as photoconductive Jm (lb).
ＯＰＣ等を選べば第一次帯電を正とし、第二次帯電を負
とすることができ各種の光導電層を利用できる。If OPC or the like is selected, the primary charge can be made positive and the secondary charge can be made negative, and various photoconductive layers can be used.
即ち、一実施例では黒画像部を正の潜像電位に赤画像部
を負の潜像電位としたが、これも赤画像部を強く霧光し
黒画像部を露光しない状態で、正。That is, in one embodiment, the black image area was set to a positive latent image potential and the red image area was set to a negative latent image potential, but this is also positive when the red image area is strongly fogged and the black image area is not exposed.
負の潜像電位を逆転することができる。これは文書情報
においては黒画像部が圧倒的に赤画像部よりも多いので
、レーザ光源（６）として半導体レーザな用いる場合に
は寿命の点からいって非常な利点となる。従ってフォー
マット情報と文書情報の合成あるいは付加情報と主要情
報との合成といった場合、光量を調整するだけで、強調
したい情報の色を自由に選択することができる。また７
オーマント情報あるいは付加情報をネガフィルムとして
露光し、その後ζ＝文書情報あるいは主要情報なレーザ
光で露光しても同様の結果が得られる。また白画像部の
電位を露光量を変えることにより、変化させ白画像部と
赤画像部および黒画像部との電位コントラストを自由に
変えることができる。その結果、現像バイアスを略白画
偉部竜位に選べば各色の濃度を自由に変えることができ
る。A negative latent image potential can be reversed. This is because black image areas are overwhelmingly more numerous than red image areas in document information, so when a semiconductor laser is used as the laser light source (6), this is a great advantage in terms of longevity. Therefore, when combining format information and document information or additional information and main information, the color of the information to be emphasized can be freely selected by simply adjusting the amount of light. Also 7
A similar result can be obtained by exposing the redundant information or additional information as a negative film and then exposing it to a laser beam where ζ=document information or main information. Further, by changing the exposure amount, the potential of the white image area can be changed, and the potential contrast between the white image area, the red image area, and the black image area can be freely changed. As a result, the density of each color can be changed freely if the developing bias is selected to be approximately white.
この実施例についても具体的数値を示す。Specific numerical values are also shown for this example.
Ａ／ ４電性基板上に加μｍのＣｄ５−ＣｄＳｅを塗布
し、その上に５μｍのマイラ（ポリエチレンテレフタレ
ートの商品名）を形成し、３層感光体とする。まず、帯
電器（２）ニより＋５ＫＶを印加し、＋５００Ｖ（り表
面電位を感光体上に形成する。次に帯電器（４）に−６
ＫＶを印加し、第二次帯電を行うと同時に、半導体レー
ザ（ＧａＡＪＡｓ 、 ７８０ｎｍ 、 １０ｍＷ）に
よ！１Ｎ光を行う。この際、赤画像部は数十６ｒｇＡで
露光し、白画像部は数ｅｙｇ／ｃｄｔで露光することに
より、黒画＊ｍでは−４００Ｖ 、赤画像部では＋３０
０Ｖ、白画像部では一５０Ｖの表面電位が感光体上に形
成された。この状態で、正極性の黒色トナーと負極性の
赤色トナーから成る現像器に、現像バイアス電圧として
一５０Ｖを印加することにより現像を行った。A/4 A 4-μm thick Cd5-CdSe is coated on a conductive substrate, and 5 μm of Mylar (trade name of polyethylene terephthalate) is formed thereon to form a three-layer photoreceptor. First, apply +5KV from the charger (2) to form a surface potential of +500V on the photoreceptor. Next, apply -6KV to the charger (4).
While applying KV and performing secondary charging, a semiconductor laser (GaAJAs, 780 nm, 10 mW) is used! Perform 1N light. At this time, by exposing the red image area to several tens of rgA and the white image area to several eyg/cdt, the voltage is -400V for the black image*m and +30V for the red image area.
A surface potential of 0 V and -50 V was formed on the photoreceptor in the white image area. In this state, development was performed by applying a developing bias voltage of 150 V to a developing device consisting of a black toner of positive polarity and a red toner of negative polarity.
その結果前記例と同様普通紙上に鮮明な２色プリントを
得た。As a result, a clear two-color print was obtained on plain paper as in the previous example.
このように、本発明の２色プリンタでは露光量調螢等の
簡単な操作で種々の機能変化にも堪えることが可能で、
今後種々の機能要求が考えられるユーザに対しても大幅
なリードを変更することなしに、ユーザの要求に応する
ことができ、オフィスオートメ−シコン機器としては最
適である０In this way, the two-color printer of the present invention can withstand various functional changes with simple operations such as adjusting the exposure amount.
Even if users are likely to request various functions in the future, it is possible to meet their requests without making major changes to the lead, making it ideal for office automation equipment.
第１図は、本発明の構成図、第２図は静電潜像形成プロ
セスのｗ！ｉ、別図、第３図は表面電位の時間推移図で
ある。
１・・・感光体、 ２・・・第一次帯電器４・
・・第二次帯電器 ６・・・レーザ光源７・・・変調
器 ８・・・偏向器９・・・現像器
１ｏ・・・極性制御用帯電器１１・・・転写用帯電器
１２・・・記録紙代理人 弁理士 則 近 憲 佑（
はが１名）第 １ 図
第２図
第３図FIG. 1 is a block diagram of the present invention, and FIG. 2 is a diagram of the electrostatic latent image forming process. i, a separate figure, and FIG. 3 is a time course diagram of the surface potential. 1... Photoreceptor, 2... Primary charger 4.
...Secondary charger 6...Laser light source 7...Modulator 8...Deflector 9...Developer
1o...Polarity control charger 11...Transfer charger
12... Record paper agent Patent attorney Noriyuki Chika (
(1 person) Figure 1 Figure 2 Figure 3
Claims (1)
３層感光体上にｓｌの帯電次いで、又は同時Ｃ；全面露
光を行い、引続き第１の帯電極性とは逆の極性で第２の
帯電を行い、前記感光体上書；、第１の表面電位とは逆
極性の表面電位を形成し、３種類の情報に対応した３値
レベルの光量で露光し、それぞれ正電位、略零電位、負
電位の静電潜像を形成し、２色情報に対応した正負画献
位部分をそれぞれ逆極性及び異色の荷電粒子で現偉する
ことを特徴とする２色プリンタ０(1) Charging of sl on a three-layer photoreceptor consisting of a conductive support, a photoconductive layer and a transparent insulating layer, followed by or simultaneous C; whole surface exposure is carried out, followed by a second charge with a polarity opposite to the first charge polarity. 2 is charged to overwrite the photoreceptor; a surface potential of opposite polarity to the first surface potential is formed, and exposed with a ternary level of light intensity corresponding to three types of information, each of which has a positive potential, approximately A two-color printer 0 characterized in that it forms electrostatic latent images of zero potential and negative potential, and displays positive and negative image dedicated portions corresponding to two-color information with charged particles of opposite polarity and different colors, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56105451A JPS587661A (en) | 1981-07-08 | 1981-07-08 | Two color printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56105451A JPS587661A (en) | 1981-07-08 | 1981-07-08 | Two color printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS587661A true JPS587661A (en) | 1983-01-17 |
| JPH0326393B2 JPH0326393B2 (en) | 1991-04-10 |
Family
ID=14407945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56105451A Granted JPS587661A (en) | 1981-07-08 | 1981-07-08 | Two color printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS587661A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06198976A (en) * | 1991-12-19 | 1994-07-19 | Konica Corp | Color image forming device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50144447A (en) * | 1974-05-09 | 1975-11-20 | ||
| JPS54145535A (en) * | 1978-05-06 | 1979-11-13 | Ricoh Co Ltd | Multicolor electrophotographic copying method |
-
1981
- 1981-07-08 JP JP56105451A patent/JPS587661A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50144447A (en) * | 1974-05-09 | 1975-11-20 | ||
| JPS54145535A (en) * | 1978-05-06 | 1979-11-13 | Ricoh Co Ltd | Multicolor electrophotographic copying method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06198976A (en) * | 1991-12-19 | 1994-07-19 | Konica Corp | Color image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0326393B2 (en) | 1991-04-10 |
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