JPS60247259A - Recorder using beam - Google Patents

Recorder using beam

Info

Publication number
JPS60247259A
JPS60247259A JP10184984A JP10184984A JPS60247259A JP S60247259 A JPS60247259 A JP S60247259A JP 10184984 A JP10184984 A JP 10184984A JP 10184984 A JP10184984 A JP 10184984A JP S60247259 A JPS60247259 A JP S60247259A
Authority
JP
Japan
Prior art keywords
transfer
cleaning
laser
executed
exposure
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.)
Pending
Application number
JP10184984A
Other languages
Japanese (ja)
Inventor
Takashi Nibu
丹生 昂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP10184984A priority Critical patent/JPS60247259A/en
Publication of JPS60247259A publication Critical patent/JPS60247259A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/06Eliminating residual charges from a reusable imaging member
    • G03G21/08Eliminating residual charges from a reusable imaging member using optical radiation
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/04Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/04036Details of illuminating systems, e.g. lamps, reflectors
    • G03G15/04045Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers
    • G03G15/04072Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers by laser
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/14Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base
    • G03G15/16Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer
    • G03G15/169Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern, e.g. magnetic transfer with means for preconditioning the toner image before the transfer

Abstract

PURPOSE:To eliminate the need for a light source and electric power source to be used exclusively and to provide the effective utilization of a beam for information recording and the simplification of the constitution by conducting part of the beam onto a photosensitive body by photoconductive members to irradiate said beam onto said body thereby executing exposure and cleaning and destaticization before and after transfer. CONSTITUTION:The laser beam to be outputted from a laser 1 is split by a beam splitter 20 and is conducted to an exposing position A before electrification, a cleaning and destaticizing position B and an exposing position C before transfer by light guides 21. Said positions are uniformly irradiated by the beams dispersed from the top ends 21a-21c of the guide 21. The ends 20a-20c are provided so as to be divided to a several branches at an equal interval in the axial direction of a photosensitive drum 9. The exposure prior to electrification is executed in the position A, the cleaning and destaticization are executed in the position B and the exposure prior to transfer is executed in the position C along the surface rotating direction of the drum 9.

Description

【発明の詳細な説明】 【イ)産業上の利用分野 本発明はビームを有効に利用したビームを用いた記録装
置に関する。 (ロ)従来技術 従来、電子ビームやレーザビームを走査して画像情報を
記録する記録装置が知られている。 ところで、このような記録装置の1つに、レーザビーム
を画像信号で変調しこの変調したビームで感光体上を走
査して画像を記録するレーザプリンタがあり、第1図に
その概略構成を示す。図において、lはレーザビームを
発生するHe −Neレーザのようなガスレーザ、2は
ミラー、3はレーザビームを変調する音響光学変調器、
4は音響光学変調器3を駆動する高周波発生器から成る
ドライバ、5は画像記録の開始および終了のタイミング
を決めるタイミング信号πと画像信号Sとを合成する画
像情報合成回路。 6はビーム径を拡大するビーム拡大器、7はレーザビー
ムを偏向して走査する回転多面鏡、8はfθレンズ、9
は表面に感光体9aを有するドラムである。感光体ドラ
ム9の周辺には、感光体9aを一様に帯電する帯電器1
0と、感光体9a上にレーザlからの画像情報光によっ
て形成された静電荷像を現像する現像装置11と。 現像された像を記録紙Pに転写する転写電極12と、転
写後の記録紙をドラム9の表面から静電分離する分離電
極13と、感光体9a上に残留する現像剤を除去するり
’J−ニング装置14とが配置されている。 ガスレーザlから発光されるレーザビームは − ドライバ4から出力する高周波変調音響光学信号に基づ
いて音響光学変調器3により変調され。 高速回転する回転多面鏡7により感光体9a上に投射さ
れ、感光体9a上に画像情報に応じた静電潜像を形成す
る。この静1u荷像は現像装置7により現像されて可視
像とされた後1画像領域に同期して給紙された記録紙P
に転写電極12により転写される。転写後、記録紙Pは
分離電極13により分離され、搬送装置15により定着
装置】6に搬送され、そこで定着された後排紙皿17に
排紙される。 ところで、この種の電子写真処理による記録装置におい
ては、転写効率を向上させるために転写前にトナー像が
付着している感光体表面をランプ18により一様をこ露
光したり、転写後感光体表面に残留している電荷を除去
するために感光体表面をランプ19昏こより一様に露光
することが行なわれている。従来、このような転写前露
光や帯電前露光には専用の蛍光灯、LED。 EL(エレクトロルミネセンス)などの光源ヲ用い、専
用の電源で、電子写真処理のシーケンスに同期させて点
灯させているので、別電源を用意するなどコスト上昇に
つながる。 (ハ)発明の目的および構成 本発明はビームを用いた記録装置にあってはこのビーム
の光量が充分に得られしかもレーザビームをライトガイ
ドやオプチカルファイバーで導いたとき端面で分散する
という点に着目し。 専用の光源や電源を用いずに転写前露光や帯電前露光な
どを行なうようにした記録装置を提供することを目的と
し、この目的を達成するために、情報記録に用いるビー
ムの一部を導光部材により感光体上の所定位置に導くよ
うに構成したものである。 (に)実施例 第2図は本発明による記録装置の一実施例の要部概路線
図であり1図中第1図と同じ参照数字は同じ構成部分を
示している。 ガスレーザ1から出力するレーザビームをビームスプリ
ッタ20により分割し1分割したビ 3− 一部をライトガイド21により帯電前露光位置A、り1
3−ニング除電位置B、転写前露光位置Cに導き、ライ
トガイド21の先端21a、21b、21cで分散する
ビームによりこれらの位置を一様に照射する。もちろん
ライトガイドの先端20a、20b、20cはドラム9
の軸方向にもほぼ等間隔にいくつかの枝分れして設けら
れている。その結果、ドラム9の表面軸方向に沿って位
置Aでは帯電前露光1位置Bではクリーニング除電1忙
置Cでは転写前露光が行なわれ、所期の目的を達成する
ことができる。レーザビームのコヒーレント性のために
ビームスプリッタ20で分割したビームはほとんど減衰
することなく末端まで伝達され、満足できる光量が得ら
れる。分割したビームを伝達する部材はオプチカルファ
イバーでもよい。 第3図は本発明による記録装置の他の実施例の要部概路
線図であり1図中第2図と同じ参照数字は同じ構成部分
を示している。 この実施例では、ガスレーザlから出力する 5− −4 = レーザビームをビームスプリッタ20により分割し1分
割したビームをライトガイド21Gこより回転多面鏡7
の反射鏡面位置に導き、ビーム拡大器6からの主ビーム
とは異なる入射角で鏡面に入射させる。このようにすれ
ば、その反射ビームは回転多面鏡7の回転によりドラム
9の軸方向に振られ、ミラー22で反射されてドラム9
の表面−Lのクリーニング除電位置りに投射されクリー
ニング除電が行なわれる。この実施例のように分割した
補助ビームを回転多面鏡により振ることにより、第2図
の実施例で用いたような枝分れしたライトガイドを用い
る必要がなくなり、導光径路が簡単になる。 なお、上記いずれの実施例においても0図示してないが
、記録サイクルに同期して補助ビームのオン、オフを行
なうための制御回路は必要であることはいうまでもない
。 上記実施例はいずれもレーザビームを用いた記録装置の
例であるが1本発明は電子ビームを用いた記録装置にも
適用することが考えられる。  6− 本発明の効果 以−り説明したように1本発明は、ビームを用いて感光
体上に情報を記録する記録装置において、情報記録に用
いるビームの一部を導光部材で導き感光体−りを照射す
ることにより転写前露光、帯電前露光、クリーニング除
電などを行なうようにしたので、専用の光源や電源など
が不要になり、ビームの有効利用とコストの低減を図る
ことができる。
DETAILED DESCRIPTION OF THE INVENTION [A] Field of Industrial Application The present invention relates to a recording device using a beam that effectively utilizes the beam. (B) Prior Art Conventionally, recording apparatuses are known that record image information by scanning with an electron beam or a laser beam. By the way, one such recording device is a laser printer that modulates a laser beam with an image signal and records an image by scanning a photoreceptor with the modulated beam, the schematic configuration of which is shown in Figure 1. . In the figure, l is a gas laser such as a He-Ne laser that generates a laser beam, 2 is a mirror, 3 is an acousto-optic modulator that modulates the laser beam,
4 is a driver consisting of a high frequency generator that drives the acousto-optic modulator 3; 5 is an image information synthesis circuit that synthesizes the image signal S and a timing signal π that determines the start and end timings of image recording. 6 is a beam expander that expands the beam diameter; 7 is a rotating polygon mirror that deflects and scans the laser beam; 8 is an fθ lens; 9
is a drum having a photoreceptor 9a on its surface. Around the photoreceptor drum 9, there is a charger 1 that uniformly charges the photoreceptor 9a.
0, and a developing device 11 that develops an electrostatic charge image formed on the photoreceptor 9a by the image information light from the laser l. A transfer electrode 12 that transfers the developed image onto the recording paper P, a separation electrode 13 that electrostatically separates the recording paper after the transfer from the surface of the drum 9, and a separation electrode 13 that removes the developer remaining on the photoreceptor 9a. A J-ning device 14 is arranged. The laser beam emitted from the gas laser l is: - modulated by the acousto-optic modulator 3 based on a high frequency modulated acousto-optic signal output from the driver 4; The image is projected onto the photoreceptor 9a by the rotating polygon mirror 7 that rotates at high speed, and an electrostatic latent image corresponding to the image information is formed on the photoreceptor 9a. This static 1u image is developed into a visible image by the developing device 7, and then the recording paper P is fed in synchronization with one image area.
is transferred by the transfer electrode 12. After the transfer, the recording paper P is separated by the separation electrode 13 and transported by the transport device 15 to the fixing device 6, where it is fixed and then discharged onto the paper discharge tray 17. Incidentally, in a recording apparatus using this type of electrophotographic processing, in order to improve the transfer efficiency, the surface of the photoconductor on which the toner image is attached is uniformly exposed to light using a lamp 18 before the transfer, or the photoconductor surface is exposed to light after the transfer. In order to remove the charge remaining on the surface, the surface of the photoreceptor is uniformly exposed to light from a lamp 19. Conventionally, dedicated fluorescent lamps and LEDs have been used for such pre-transfer exposure and pre-charging exposure. Since a light source such as EL (electroluminescence) is used and a dedicated power supply is used to turn on the lights in synchronization with the sequence of electrophotographic processing, a separate power supply is required, leading to an increase in costs. (c) Object and structure of the invention The present invention has the advantage that in a recording device using a beam, a sufficient amount of light can be obtained from the beam, and when the laser beam is guided by a light guide or optical fiber, it is dispersed at the end face. Pay attention. The purpose is to provide a recording device that performs pre-transfer exposure, pre-charging exposure, etc. without using a dedicated light source or power source, and to achieve this purpose, a part of the beam used for information recording is guided. It is configured to be guided to a predetermined position on the photoreceptor by a light member. (2) Embodiment FIG. 2 is a schematic diagram of essential parts of an embodiment of the recording apparatus according to the present invention, and the same reference numerals as in FIG. 1 in FIG. 1 indicate the same components. The laser beam output from the gas laser 1 is divided by the beam splitter 20, and a portion of the resulting beam is transferred to the pre-charging exposure position A and R1 by the light guide 21.
3-ning static elimination position B and pre-transfer exposure position C, and these positions are uniformly irradiated with the beam dispersed by the tips 21a, 21b, and 21c of the light guide 21. Of course, the tips 20a, 20b, and 20c of the light guide are the drum 9.
There are several branches provided at approximately equal intervals in the axial direction. As a result, along the axial direction of the surface of the drum 9, pre-charging exposure 1 is performed at position B, and pre-transfer exposure is performed at cleaning static neutralization 1 position C, thereby achieving the desired purpose. Due to the coherent nature of the laser beam, the beam split by the beam splitter 20 is transmitted to the end with almost no attenuation, and a satisfactory amount of light can be obtained. The member for transmitting the divided beams may be an optical fiber. FIG. 3 is a schematic diagram of main parts of another embodiment of the recording apparatus according to the present invention, and the same reference numerals as in FIG. 2 in FIG. 1 indicate the same components. In this embodiment, the laser beam output from the gas laser 1 is divided by the beam splitter 20, and the divided beam is transmitted through the light guide 21G to the rotating polygon mirror 7.
The main beam from the beam expander 6 is guided to the reflecting mirror surface position, and is made incident on the mirror surface at an incident angle different from that of the main beam from the beam expander 6. In this way, the reflected beam is swung in the axial direction of the drum 9 by the rotation of the rotary polygon mirror 7, and is reflected by the mirror 22, so that the reflected beam
is projected onto the cleaning static electricity removal position on the surface -L, and cleaning static electricity removal is performed. By swinging the divided auxiliary beam using a rotating polygon mirror as in this embodiment, there is no need to use a branched light guide as used in the embodiment of FIG. 2, and the light guide path becomes simple. It goes without saying that in any of the above embodiments, although not shown in the drawing, a control circuit for turning on and off the auxiliary beam in synchronization with the recording cycle is necessary. Although the above embodiments are all examples of recording apparatuses using laser beams, it is conceivable that the present invention can also be applied to recording apparatuses using electron beams. 6-Effects of the Invention As explained above, the present invention provides a recording device that records information on a photoreceptor using a beam, in which a part of the beam used for information recording is guided by a light guide member to the photoreceptor. Since pre-transfer exposure, pre-charging exposure, cleaning and static elimination are performed by irradiating the beam with light, there is no need for a dedicated light source or power source, making it possible to effectively utilize the beam and reduce costs.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図はビームを用いた記録装置の一例としてのレーザ
プリンタの概略構成を示す線図、第2図および第3図は
本発明による記録装置の異なる実施例の概略線図である
。 1・・・ガスレーザ 3・・・音響光学変調器4・・・
ドライバ 5・・・画像情報合成回路7・・・回転多面
鏡 9・・・ドラム lO・・・帯電器 11・・・現像装置12・・・転写
電極 13・・・分離電極14・・・クリーニング装置
 16・・・定着装置20・・・ハーフミラ−21・・
・ライトガイド特許出願人 小西六写真工業株式会社 代理人 弁理士 鈴 木 弘 男
FIG. 1 is a diagram showing a schematic configuration of a laser printer as an example of a recording device using a beam, and FIGS. 2 and 3 are schematic diagrams of different embodiments of the recording device according to the present invention. 1... Gas laser 3... Acousto-optic modulator 4...
Driver 5... Image information synthesis circuit 7... Rotating polygon mirror 9... Drum lO... Charger 11... Developing device 12... Transfer electrode 13... Separation electrode 14... Cleaning Device 16... Fixing device 20... Half mirror 21...
・Light Guide Patent Applicant Konishiroku Photo Industry Co., Ltd. Agent Patent Attorney Hiroo Suzuki

Claims (1)

【特許請求の範囲】[Claims] ビームを用いて感光体−Lに情報を記録する記録装置に
おいて、情報記録に用いるビームの一部を導光部材によ
り感光体Fの所定位置に導くようにしたことを特徴とす
るビームを用いた記録装置。
A recording device that records information on a photoreceptor-L using a beam, using a beam characterized in that a part of the beam used for information recording is guided to a predetermined position on the photoreceptor F by a light guiding member. Recording device.
JP10184984A 1984-05-22 1984-05-22 Recorder using beam Pending JPS60247259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10184984A JPS60247259A (en) 1984-05-22 1984-05-22 Recorder using beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10184984A JPS60247259A (en) 1984-05-22 1984-05-22 Recorder using beam

Publications (1)

Publication Number Publication Date
JPS60247259A true JPS60247259A (en) 1985-12-06

Family

ID=14311492

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10184984A Pending JPS60247259A (en) 1984-05-22 1984-05-22 Recorder using beam

Country Status (1)

Country Link
JP (1) JPS60247259A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0661612A2 (en) * 1993-12-28 1995-07-05 Mita Industrial Co., Ltd. Image forming apparatus
US7027757B2 (en) * 2002-04-24 2006-04-11 Samsung Electronics Co., Ltd. Image forming apparatus including a subsidiary transfer part having a fiber optic guide
US7319835B2 (en) * 2002-07-02 2008-01-15 Samsung Electronics Co., Ltd. Image forming device having first and second light providing units

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0661612A2 (en) * 1993-12-28 1995-07-05 Mita Industrial Co., Ltd. Image forming apparatus
EP0661612A3 (en) * 1993-12-28 1997-03-12 Mita Industrial Co Ltd Image forming apparatus.
US7027757B2 (en) * 2002-04-24 2006-04-11 Samsung Electronics Co., Ltd. Image forming apparatus including a subsidiary transfer part having a fiber optic guide
US7319835B2 (en) * 2002-07-02 2008-01-15 Samsung Electronics Co., Ltd. Image forming device having first and second light providing units

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