JPH0588837B2 - - Google Patents
Info
- Publication number
- JPH0588837B2 JPH0588837B2 JP977286A JP977286A JPH0588837B2 JP H0588837 B2 JPH0588837 B2 JP H0588837B2 JP 977286 A JP977286 A JP 977286A JP 977286 A JP977286 A JP 977286A JP H0588837 B2 JPH0588837 B2 JP H0588837B2
- Authority
- JP
- Japan
- Prior art keywords
- toner
- carrier
- transport layer
- light
- carrier transport
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- YRZZLAGRKZIJJI-UHFFFAOYSA-N oxyvanadium phthalocyanine Chemical compound [V+2]=O.C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 YRZZLAGRKZIJJI-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000006862 quantum yield reaction Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000006617 triphenylamine group Chemical class 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
Landscapes
- Electrophotography Using Other Than Carlson'S Method (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、複写機、フアクシミリ、光プリンタ
などに用いられる電子写真記録方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electrophotographic recording method used in copying machines, facsimile machines, optical printers, and the like.
（従来の技術）
本願出願人は先に特願昭60−99369号（出願日
昭和60年５月10日）において、工程数を大幅に減
少した電子写真記録方法を提案している。これは
透明支持体と透明電極と光導電層とからなる感光
体の光導電層の表面に、帯電したトナーを一様に
付着し、感光体に透明支持体側より光を走査し、
光導電層の表面のトナーと記録媒体を介して対向
する転写電極を介して、光走査部のトナーを記録
媒体に転写するものである。(Prior Art) The applicant of the present application has previously proposed an electrophotographic recording method in which the number of steps is significantly reduced in Japanese Patent Application No. 1983-99369 (filed on May 10, 1985). In this method, charged toner is uniformly attached to the surface of the photoconductive layer of a photoconductor consisting of a transparent support, a transparent electrode, and a photoconductive layer, and light is scanned onto the photoconductor from the transparent support side.
The toner on the optical scanning section is transferred to the recording medium through a transfer electrode that faces the toner on the surface of the photoconductive layer with the recording medium in between.
（発明が解決しようとする問題点）
上記した電子写真記録方法においては、透明電
極上に光導電極が形成されているが、この光導電
層の光応答性が悪い場合には、光走査からトナー
飛翔までに時間がかかり、像のずれを生じてしま
う。また光導電層は暗減衰が小さく、残留電位が
小さいのが望ましいが、この特性が劣る場合に
は、光走査されない暗部ににおける帯電したトナ
ーの電荷が中和し、暗部のトナーが飛翔していわ
ゆるかぶりの生じることがある。(Problems to be Solved by the Invention) In the above-mentioned electrophotographic recording method, a photoconductive electrode is formed on a transparent electrode, but if this photoconductive layer has poor photoresponsivity, toner particles may be removed from light scanning. It takes time for the image to fly, resulting in a shift in the image. In addition, it is desirable that the photoconductive layer has low dark decay and residual potential, but if these characteristics are poor, the charge of the charged toner in the dark areas that are not scanned by light will be neutralized, and the toner in the dark areas will fly away. So-called fogging may occur.
本発明の目的は、トナーの転写速度を向上さ
せ、かぶりを防止し、高い印字品質の電子写真記
録を得ることにある。 An object of the present invention is to improve the toner transfer speed, prevent fogging, and obtain an electrophotographic record with high print quality.
（問題点を解決するための手段）
本発明の特徴は、透明支持体と透明電極とキヤ
リヤ輸送層とからなるトナー担持体を設け、キヤ
リヤ輸送層の表面に、キヤリヤ発生材料よりなる
トナーを帯電させて一様に付着し、トナー担持体
に透明支持体側より光を走査し、光走査部のトナ
ーに発生したキヤリヤをキヤリヤ輸送層を介して
輸送することにより、光走査部のトナーの帯電電
荷を光走査されなかつたトナーの帯電電荷と逆極
性とし、この光走査部のトナーを転写手段を設け
た記録媒体へ転写させるところにある。(Means for Solving the Problems) The present invention is characterized by providing a toner carrier consisting of a transparent support, a transparent electrode, and a carrier transport layer, and charging a toner made of a carrier generating material on the surface of the carrier transport layer. By scanning the toner carrier with light from the transparent support side and transporting the carrier generated in the toner in the optical scanning part through the carrier transport layer, the toner is charged in the optical scanning part. is set to have a polarity opposite to that of the toner that has not been optically scanned, and the toner in the optical scanning section is transferred to a recording medium provided with a transfer means.
（実施例）
第１図は本発明の電子写真記録方法の原理図で
あつて、トナー担持体１は３層構造のもので、ガ
ラスなどの透明支持体１ａの上面に透明電極１ｂ
を形成し、この透明電極の上面にキヤリヤ輸送層
１ｃを形成してある。透明電極１ｂは電源Ｅによ
り負電位にバイアスされているる。キヤリヤ輸送
層１ｃの表面には、帯電させたトナー２、この例
ではプラスに帯電させたトナーが一様に付着させ
てある。このトナー２は光キヤリヤ発生機能を有
する材料よりなるものである。トナー担持体１の
透明支持体１ｃ側から光が走査された際に明部に
おけるトナー２に発生した光キヤリヤが効率よく
キヤリヤ輸送層１ｃに注入され、かつ暗部におい
てはキヤリヤ輸送層からトナーへのキヤリヤ注入
が行なわれないためには、トナーとキヤリヤ輸送
層のイオン化ポテンシヤル、電子親和力を考慮す
る必要がある。例えば正孔注入の場合、キヤリヤ
輸送材料としては、キヤリヤ注入効率を高めるた
めイオン化ポテンシヤルが低く、かつキヤリヤ移
動を容易にするため〓電子系の発達した分子構造
を持つ物質が適している。すなわち静電荷受容性
と帯電保持性に優れ、使用光源にに対して分光感
度を持たず、キヤリヤ移動度の大きい物質が望ま
しい。具体的にはイオン化ポテンシヤルの低いア
ミノ置換体であるトリフエニルアミン類、アリー
ルヒドラゾン類などが上げられる。トナー２とし
て用いられるキヤリヤ発生材料としては、フタロ
シアニン、ビスアゾ系色素がある。フタロシアニ
ン顔料は安価、無毒であり、分光感度は全可視領
域にわたつている。またバナジルフタロシアニン
はキヤリヤ生成の量子収率が大きく、感光特性は
近赤外線領域（〜900nm）までのびており、光源
として半導体レーザを用いた場合に適している。(Example) FIG. 1 is a principle diagram of the electrophotographic recording method of the present invention, in which a toner carrier 1 has a three-layer structure, and a transparent electrode 1b is disposed on the upper surface of a transparent support 1a such as glass.
A carrier transport layer 1c is formed on the upper surface of this transparent electrode. The transparent electrode 1b is biased to a negative potential by a power source E. Charged toner 2, in this example positively charged toner, is uniformly adhered to the surface of the carrier transport layer 1c. This toner 2 is made of a material having a function of generating optical carriers. When light is scanned from the transparent support 1c side of the toner carrier 1, the light carrier generated in the toner 2 in the bright area is efficiently injected into the carrier transport layer 1c, and in the dark area, the light carrier is transferred from the carrier transport layer to the toner. In order to avoid carrier injection, it is necessary to consider the ionization potential and electron affinity of the toner and carrier transport layer. For example, in the case of hole injection, suitable carrier transport materials include substances that have a low ionization potential to increase carrier injection efficiency and have a molecular structure with a developed electronic system to facilitate carrier movement. That is, it is desirable to use a material that has excellent electrostatic charge acceptance and charge retention, has no spectral sensitivity to the light source used, and has high carrier mobility. Specific examples include triphenylamines, arylhydrazones, and the like, which are amino-substituted products with low ionization potential. Carrier generating materials used as the toner 2 include phthalocyanine and bisazo dyes. Phthalocyanine pigments are inexpensive, non-toxic, and have spectral sensitivities that span the entire visible spectrum. Furthermore, vanadyl phthalocyanine has a high quantum yield for carrier generation, and its photosensitivity extends to the near-infrared region (~900 nm), making it suitable for use when a semiconductor laser is used as a light source.
キヤリヤ輸送層１ｃに対向して記録媒体３であ
る記録紙が搬送される。記録紙３の背面には転写
手段４としての電源Ｅにより負にバイアスされて
いる転写電極が配設してある。また光源（図示せ
ず）から発せられたレーザ光５は、回転多面鏡
６、ｆ・〓反射鏡７等の光走査手段で反射し、感
光体１の透明支持体１ａ側から記録紙３の搬送方
向に直交する方向に光走査する。 A recording paper, which is a recording medium 3, is conveyed facing the carrier transport layer 1c. On the back side of the recording paper 3, a transfer electrode serving as a transfer means 4 which is negatively biased by a power source E is arranged. Further, the laser beam 5 emitted from a light source (not shown) is reflected by a light scanning means such as a rotating polygon mirror 6 and an f/field reflector 7, and is transmitted from the transparent support 1a side of the photoreceptor 1 to the recording paper 3. Light scans in a direction perpendicular to the transport direction.
いまトナー２がプラスに帯電されており、画像
文字情報に応じて変調されたレーザ光５光走査手
段を介して走査されると、光はキヤリヤ輸送層１
ｃを通過してキヤリヤ発生材料であるトナー２に
吸収される。トナー２内には第２図示のように電
子、正孔のイオン対が発生し、本例の正孔注入の
場合には、正孔が速やかにキヤリヤ輸送層１ｃを
介して透明電極１ｂへ輸送される。これにより光
走査を受けた明部におけるトナー内には電子が残
りマイナスに帯電され、したがつてその帯電電荷
は、暗部におけるトナー２の帯電電荷と逆極性と
なる。そこでこの逆極性に帯電されたトナー２に
対して転写手段４から静電気力が作用し、トナー
は記録紙３に転写される。 The toner 2 is now positively charged, and when it is scanned by the laser beam 5 modulated according to the image character information through the optical scanning means, the light is transmitted to the carrier transport layer 1.
c and is absorbed by toner 2, which is a carrier generating material. Ion pairs of electrons and holes are generated in the toner 2 as shown in the second diagram, and in the case of hole injection in this example, the holes are quickly transported to the transparent electrode 1b via the carrier transport layer 1c. be done. As a result, electrons remain in the toner in the bright area that has been optically scanned and are negatively charged, so that the charge has a polarity opposite to that of the toner 2 in the dark area. Then, an electrostatic force is applied from the transfer means 4 to the toner 2 charged to the opposite polarity, and the toner is transferred onto the recording paper 3.
暗部におけるトナー２内には電子、正孔のイオ
ン対は発生しないので、トナー２がマイナスに帯
電されることはなく、したがつていわゆるかぶり
の生じることはない。 Since ion pairs of electrons and holes are not generated in the toner 2 in the dark area, the toner 2 is not negatively charged, so that so-called fogging does not occur.
（発明の効果）
以上述べたように本発明によれば、光走査によ
り光を受けた明部におけるトナー内にキヤリヤが
発生し、このキヤリヤが速やかにキヤリヤ輸送層
を介して輸送され、暗部におけるトナーと逆極性
に帯電されるので、トナーの転写速度が向上し、
また暗部におけるトナーが転写することがないの
でかぶりの生じることなく、高い印字品質の電子
写真記録を得ることができる。(Effects of the Invention) As described above, according to the present invention, carriers are generated in the toner in the bright areas that receive light due to optical scanning, and this carrier is quickly transported through the carrier transport layer, and the carriers are quickly transported in the toner in the dark areas. Since it is charged to the opposite polarity to the toner, the toner transfer speed increases,
Furthermore, since toner in dark areas is not transferred, it is possible to obtain electrophotographic records with high print quality without fogging.
第１図は本発明の原理を説明する断面図、第２
図はトナー転写の作用を示す一部拡大断面図であ
る。
１……トナー担持体、１ａ……透明支持体、１
ｂ……透明電極、１ｃ……キヤリヤ輸送層、２…
…キヤリヤ発生材料よりなるトナー、３……記録
媒体、４……転写手段、５……光。
Figure 1 is a sectional view explaining the principle of the present invention, Figure 2
The figure is a partially enlarged sectional view showing the effect of toner transfer. 1... Toner carrier, 1a... Transparent support, 1
b...Transparent electrode, 1c...Carrier transport layer, 2...
...Toner made of carrier generating material, 3... Recording medium, 4... Transfer means, 5... Light.
Claims (1)
らなるトナー担持体を設け、 上記キヤリヤ輸送層の表面に、キヤリヤ発生材
料よりなるトナーを帯電させて一様に付着し、 上記トナー担持体に上記透明支持体側より光を
走査し、 上記光走査部のトナーに発生したキヤリヤを上
記キヤリヤ輸送層を介して輸送することにより、
上記光走査部のトナーの帯電電荷を光走査されな
かつたトナーの帯電電荷と逆極性とし、 この光走査部のトナーを転写手段を介して記録
媒体へ転写させる ことを特徴とする電子写真記録方法。[Scope of Claims] 1. A toner carrier comprising a transparent support, a transparent electrode, and a carrier transport layer is provided, and a toner made of a carrier generating material is charged and uniformly adhered to the surface of the carrier transport layer, By scanning the toner carrier with light from the transparent support side and transporting the carrier generated in the toner in the light scanning section via the carrier transport layer,
An electrophotographic recording method characterized in that the toner in the optical scanning section has a polarity opposite to that of the toner that has not been optically scanned, and the toner in the optical scanning section is transferred to a recording medium via a transfer means. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP977286A JPS62166368A (en) | 1986-01-20 | 1986-01-20 | Electrophotographic recording method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP977286A JPS62166368A (en) | 1986-01-20 | 1986-01-20 | Electrophotographic recording method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62166368A JPS62166368A (en) | 1987-07-22 |
| JPH0588837B2 true JPH0588837B2 (en) | 1993-12-24 |
Family
ID=11729547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP977286A Granted JPS62166368A (en) | 1986-01-20 | 1986-01-20 | Electrophotographic recording method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62166368A (en) |
-
1986
- 1986-01-20 JP JP977286A patent/JPS62166368A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62166368A (en) | 1987-07-22 |
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