JPH09197757A - Color image forming device - Google Patents

Color image forming device

Info

Publication number
JPH09197757A
JPH09197757A JP8003970A JP397096A JPH09197757A JP H09197757 A JPH09197757 A JP H09197757A JP 8003970 A JP8003970 A JP 8003970A JP 397096 A JP397096 A JP 397096A JP H09197757 A JPH09197757 A JP H09197757A
Authority
JP
Japan
Prior art keywords
developing
image forming
drum
peripheral surface
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.)
Pending
Application number
JP8003970A
Other languages
Japanese (ja)
Inventor
Hisayoshi Nagase
久喜 永瀬
Satoru Haneda
哲 羽根田
Hiroyuki Tokimatsu
宏行 時松
Masayasu Onodera
正泰 小野寺
州太 ▲浜▼田
Kunita Hamada
Shunei Miura
俊英 三浦
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 JP8003970A priority Critical patent/JPH09197757A/en
Publication of JPH09197757A publication Critical patent/JPH09197757A/en
Pending legal-status Critical Current

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  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Color Electrophotography (AREA)

Abstract

PROBLEM TO BE SOLVED: To set the position of plural developing units in contact with the fixed developing regions on the peripheral surface of a photoreceptor drum, without causing distortion and deformation, respectively. SOLUTION: This color image forming device is constituted so that a pair of guiding pins P provided projectingly on the front and rear side surface of a developing unit 13(C) respectively are slidably engaged with guiding holes H provided in a developing frame 1300 and the guiding pins P are slid from horizontal parts to inclined parts in the guiding holes H by the repulsion of a compression coil spring S. Thus, in the developing unit 13(C), a butting roller 130A possessed by a developing sleeve 130 is moved toward a normal ON with respect to the periphery of a drum 10 from a horizontal direction, to come into contact with the peripheral surface of the drum, so that the developing sleeve 130 is positionally set in the fixed developing region, without the fear of the occurrence of the distortion and deformation.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、主としてドラム状
の像形成体の周面に複数の現像手段を配置して像形成体
の一回転中にトナー像を重ね合わせて形成する電子写真
方式のカラー画像形成装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrophotographic system in which a plurality of developing means are mainly arranged on the peripheral surface of a drum-shaped image forming body and toner images are superposed and formed during one rotation of the image forming body. The present invention relates to a color image forming apparatus.

【0002】[0002]

【従来の技術】像形成体の一回転中に各色のトナー像の
現像を開始させる形式のカラー画像形成装置では、形成
する画像の大きさによって制約されないで、比較的径の
小さい像形成体の使用が可能であり、その結果として高
速にカラー画像形成を可能としたカラー画像形成装置で
はありながら、容積がコンパクトにあると同時に現像手
段その他の組み付けやメンテナンスの作業も容易である
と云う有利性がある。
2. Description of the Related Art In a color image forming apparatus of a type in which development of toner images of respective colors is started during one rotation of an image forming body, the image forming body having a relatively small diameter is not restricted by the size of an image to be formed. Although it is a color image forming apparatus that can be used, and as a result, can form a color image at high speed, it is advantageous in that it has a compact volume and at the same time is easy to assemble and maintain other developing means. There is.

【0003】[0003]

【発明が解決しようとする課題】しかし各現像手段は、
像形成体の周面に対向して複数の配設される関係から形
状が薄形にまとめられていて、トナーの洩れ防止や駆動
機構との接続の関係から、何れも水平状態の姿勢を保っ
て像形成体の周面に当接されるため、像形成体の径が小
さいと一部の現像手段が像形成体の周面に対し、斜めの
方向から当接される結果から現像手段が変形し、いわゆ
るよじれを生じて現像条件を変化し、さらに有害な振動
を引き起こして現像される画像を乱すおそれがある。
However, each developing means is
The shape is thin due to the plurality of arrangements facing the peripheral surface of the image forming body, and in order to prevent toner leakage and connection with the drive mechanism, all of them maintain a horizontal posture. Contacting the peripheral surface of the image forming body, therefore, if the diameter of the image forming body is small, a part of the developing means will contact the peripheral surface of the image forming body in an oblique direction. There is a possibility that the image may be deformed, so-called kinked, the developing conditions may be changed, and further harmful vibration may be caused to disturb the image to be developed.

【0004】本発明はこの点を解決して改良した結果、
複数の現像手段の何れをも像形成体の周面に対し垂直に
当接して位置設定することを可能としたカラー画像形成
装置の提供を目的としたものである。
[0004] The present invention has solved and improved the above points,
It is an object of the present invention to provide a color image forming apparatus in which any of a plurality of developing means can be positioned so as to be in vertical contact with the peripheral surface of an image forming body.

【0005】[0005]

【課題を解決するための手段】上記目的は、像形成体の
周面にそれぞれ複数の帯電手段、像露光手段及び現像手
段を配設し、前記像形成体の一回転中に帯電、像露光及
び現像を繰り返して前記像形成体上に多色のトナー像を
重ね合わせて形成後、前記トナー像を転写材に一括して
転写するカラー画像形成装置において、前記像形成体は
ドラム状像形成体であって、前記現像手段は前記ドラム
状像形成体の周面に対し法線方向より当接して位置設定
されることを特徴とするカラー画像形成装置によって達
成される。
The above object is to provide a plurality of charging means, image exposing means and developing means on the peripheral surface of an image forming body, and to charge and image expose during one rotation of the image forming body. In the color image forming apparatus, in which the toner images of multiple colors are formed on the image forming body by superposing and repeating the development and then the toner images are collectively transferred to a transfer material, the image forming body forms a drum image. The present invention is achieved by a color image forming apparatus, characterized in that the developing means is positioned in contact with the peripheral surface of the drum-shaped image forming body in the normal direction.

【0006】[0006]

【発明の実施の形態】本発明のカラー画像形成装置の構
成とその機能を図1の実施の形態によって説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration and function of a color image forming apparatus of the present invention will be described with reference to the embodiment shown in FIG.

【0007】10はドラム状の像形成体すなわち感光体
ドラムで、光学ガラスもしくは透明アクリル樹脂等の透
明部材によって形成される円筒状の基体の外周に透明導
電層,有機感光層(OPC)を塗布したものである。
Reference numeral 10 denotes a drum-shaped image forming body, that is, a photosensitive drum, which is coated with a transparent conductive layer and an organic photosensitive layer (OPC) on the outer periphery of a cylindrical substrate formed of a transparent member such as optical glass or transparent acrylic resin. It was done.

【0008】11はスコロトロン帯電器で感光体ドラム
10の前述した有機感光体層に対し所定の電位に保持さ
れたグリッドと放電ワイヤによるコロナ放電とによって
帯電作用を行い、感光体ドラム10に対し一様な電位を
与える。
Reference numeral 11 denotes a scorotron charger, which performs a charging operation on the above-described organic photoconductor layer of the photoconductor drum 10 by means of a grid held at a predetermined potential and corona discharge by a discharge wire, so that the photoconductor drum 10 is charged. Such a potential is applied.

【0009】12は感光体ドラム10の軸方向に配列し
たLEDとセルフォックレンズとから構成される露光光
学系で、別体の画像読み取り装置によって読み取られた
各色の画像信号がメモリより順次取り出されて前記の各
露光光学系12にそれぞれ電気信号として入力される。
Reference numeral 12 is an exposure optical system composed of LEDs and SELFOC lenses arranged in the axial direction of the photosensitive drum 10, and image signals of respective colors read by a separate image reading device are sequentially taken out from the memory. And is input as an electric signal to each of the exposure optical systems 12 described above.

【0010】13Yないし13Kはイエロー(Y),マ
ゼンタ(M),シアン(C)およびK(黒色)の各現像
剤を収容する現像器で、それぞれ感光体ドラム10の周
面に対し所定の間隙を保って同方向に回転する現像スリ
ーブ130を備えている。
Reference numerals 13Y to 13K denote developing units for accommodating yellow (Y), magenta (M), cyan (C) and K (black) developers, respectively, each having a predetermined gap with respect to the peripheral surface of the photosensitive drum 10. The developing sleeve 130 rotates in the same direction while maintaining the above.

【0011】前記の各現像器は、前述した帯電器11に
よる帯電,露光光学系12による像露光によって形成さ
れる感光体ドラム10上の静電潜像を現像バイアス電圧
の印加により非接触の状態で反転現像する。
Each of the developing devices is in a non-contact state by applying a developing bias voltage to the electrostatic latent image formed on the photosensitive drum 10 formed by the charging by the charging device 11 and the image exposure by the exposure optical system 12 described above. Reverse development with.

【0012】次に本装置におけるカラー画像形成装置の
プロセスについて説明する。
Next, the process of the color image forming apparatus in this apparatus will be described.

【0013】原稿画像は本装置とは別体の画像読み取り
装置において、撮像素子により読み取られた画像あるい
はコンピュータで編集された画像を、Y,M,Cおよび
Kの各色別の画像信号として一旦メモリに記憶し格納さ
れる。
The original image is temporarily stored in an image reading device, which is separate from this device, as an image read by an image pickup device or an image edited by a computer as an image signal for each color of Y, M, C and K. Are stored and stored in.

【0014】画像記録のスタートにより感光体駆動モー
タの始動により感光体ドラム10を時計方向へと回転
し、同時に帯電器11(Y)の帯電作用により感光体ド
ラム10に電位の付与が開始される。
When the image recording is started, the photosensitive drum driving motor is started to rotate the photosensitive drum 10 in the clockwise direction, and at the same time, the charging action of the charger 11 (Y) starts to apply the potential to the photosensitive drum 10. .

【0015】感光体ドラム10は電位を付与されたあ
と、前記の露光光学系12(Y)において第1の色信号
すなわちイエロー(Y)の画像信号に対応する電気信号
による露光が開始されドラムの回転走査によってその表
面の感光層に原稿画像のイエロー(Y)の画像に対応す
る静電潜像を形成する。
After a potential is applied to the photosensitive drum 10, the exposure optical system 12 (Y) starts exposure by an electric signal corresponding to the first color signal, that is, the image signal of yellow (Y), and the exposure of the drum is started. By rotating and scanning, an electrostatic latent image corresponding to the yellow (Y) image of the original image is formed on the photosensitive layer on the surface thereof.

【0016】前記の潜像は現像器13(Y)により現像
スリーブ上の現像剤が非接触の状態で反転現像され感光
体ドラム10の回転に応じイエロー(Y)のトナー像が
形成される。
The latent image is reversely developed by the developing device 13 (Y) with the developer on the developing sleeve in a non-contact state, and a yellow (Y) toner image is formed according to the rotation of the photosensitive drum 10.

【0017】次いで感光体ドラム10は前記イエロー
(Y)のトナー像の上にさらに帯電器11(M)の帯電
作用により電位を付与され、露光光学系12(M)の第
2の色信号すなわちマゼンタ(M)の画像信号に対応す
る電気信号による露光が行われ、現像器13(M)によ
る非接触の反転現像によって前記のイエロー(Y)のト
ナー像の上にマゼンタ(M)のトナー像が順次重ね合わ
せて形成していく。
Next, the photosensitive drum 10 is further given a potential on the yellow (Y) toner image by the charging action of the charger 11 (M), and the second color signal of the exposure optical system 12 (M), that is, Exposure is performed by an electric signal corresponding to the magenta (M) image signal, and non-contact reversal development by the developing device 13 (M) causes a magenta (M) toner image on the yellow (Y) toner image. Will be sequentially stacked.

【0018】同様のプロセスにより帯電器11(C)、
露光光学系12(C)および現像器13(C)によって
さらに第3の色信号に対応するシアン(C)のトナー像
が、また帯電器11(K)、露光光学系12(K)およ
び現像器13(K)によって第4の色信号に対応する黒
色(K)のトナー像が順次重ね合わせて形成され、感光
体ドラム10の一回転以内にその周面上にカラーのトナ
ー像が形成される。
By the same process, the charger 11 (C),
The exposure optical system 12 (C) and the developing unit 13 (C) further form a cyan (C) toner image corresponding to the third color signal, and the charging unit 11 (K), the exposure optical system 12 (K) and the developing unit 13 (C). A black (K) toner image corresponding to the fourth color signal is sequentially superimposed and formed by the unit 13 (K), and a color toner image is formed on the peripheral surface within one rotation of the photosensitive drum 10. You.

【0019】これ等各露光光学系による感光体ドラム1
0の有機感光層に対する露光はドラムの内部より前述し
た透明の基体を通して行われる。従って第2,第3およ
び第4の色信号に対応する画像の露光は何れも先に形成
されたトナー像の影響を全く受けることなく行われ、第
1の色信号に対応する画像と同等の静電潜像を形成する
ことが可能となる。また各現像器による現像作用に際し
ては、それぞれ現像スリーブ130に対し直流あるいは
さらに交流を加えた現像バイアスが印加され、現像器の
収容する一成分或いは二成分現像剤によるジャンピング
現像が行われて、透明電導層を接地する感光体ドラム1
0に対して非接触の反転現像が行われるようになってい
る。
Photoreceptor drum 1 by each of these exposure optical systems
The exposure of the organic photosensitive layer of No. 0 is performed from the inside of the drum through the above-mentioned transparent substrate. Therefore, the exposure of the images corresponding to the second, third, and fourth color signals is performed without any influence from the previously formed toner image, and the same exposure as the image corresponding to the first color signal is performed. It is possible to form an electrostatic latent image. Further, during the developing action by each developing device, a developing bias in which a direct current or an alternating current is applied to the developing sleeve 130 is applied respectively, and jumping development is performed by the one-component or two-component developer accommodated in the developing device, thereby making it transparent. Photoreceptor drum 1 with conductive layer grounded
Non-contact reversal development is performed on 0.

【0020】かくして感光体ドラム10の周面上に形成
されたカラーのトナー像は転写器14Aにおいて給紙カ
セット15より搬送されタイミングローラ16の駆動に
よって同期して給紙される転写紙に転写される。
In this way, the color toner image formed on the peripheral surface of the photosensitive drum 10 is transferred to the transfer paper which is conveyed from the paper feed cassette 15 in the transfer device 14A and is fed synchronously by the driving of the timing roller 16. It

【0021】トナー像の転写を受けた転写紙は、除電器
14Bにおいては帯電の除去を受けてドラム周面より分
離し、定着装置17においてトナーを溶着したのち排紙
ローラ18を介して装置上部のトレイ上に排出される。
The transfer sheet on which the toner image has been transferred is separated from the drum peripheral surface by removing the charge in the static eliminator 14B, and the toner is fused by the fixing device 17, and then the upper part of the device is passed through the paper discharge roller 18. Will be ejected onto the tray.

【0022】一方、転写紙を分離した感光体ドラム10
はクリーニング装置19において残留トナーを除去,清
掃して原稿画像のトナー像の形成を続行するかもしくは
一旦停止して新たな原稿画像のトナー像の形成にかか
る。
On the other hand, the photosensitive drum 10 from which the transfer paper is separated
The cleaning device 19 removes and cleans residual toner to continue formation of a toner image of a document image, or temporarily stops to form a toner image of a new document image.

【0023】以上、露光光学系12を、透明体の感光体
ドラム10の内部に収容するカラー画像形成装置につい
て説明したが、本発明の対象とするカラー画像形成装置
には露光光学系を感光体ドラムの外周に面して配置する
装置も含まれる。
The color image forming apparatus in which the exposure optical system 12 is housed inside the transparent photoconductor drum 10 has been described above. However, the color image forming apparatus of the present invention has the exposure optical system as a photoconductor. Also included is a device that is placed facing the outer circumference of the drum.

【0024】本発明の実施例を図2ないし図4によって
説明する。
An embodiment of the present invention will be described with reference to FIGS.

【0025】前記の各現像器13は、転写器14Aやク
リーニング装置19と共に組み付けやメンテナンスに際
しての着脱が容易となるよう、感光体ドラム10の周面
のスペースを有効に利用して図2に示す如くバランス良
く配設されている。
Each of the developing devices 13 is shown in FIG. 2 by effectively utilizing the space on the peripheral surface of the photosensitive drum 10 so that the developing device 13 can be easily attached / detached together with the transfer device 14A and the cleaning device 19 at the time of assembly and maintenance. As such, they are arranged in good balance.

【0026】その結果感光体ドラム10の回転中心Oを
通る水平面MMに対し、前記現像器13(Y)と13
(K)はθ1あるいはθ2のようなそれぞれ小さな角度
をなす位置に、一方前記の現像器13(M)と13
(C)はθ3あるいはθ4のようなそれぞれ比較的大き
な角度をなす位置において感光体ドラム10の周面に対
し当接して位置設定される。
As a result, with respect to the horizontal plane MM passing through the rotation center O of the photosensitive drum 10, the developing devices 13 (Y) and 13
(K) is located at a position such that each of them has a small angle such as θ1 or θ2.
(C) is set in contact with the peripheral surface of the photoconductor drum 10 at a relatively large angle such as θ3 or θ4.

【0027】図3は各現像器13の共通する構造を断面
図をもって示したもので、現像器内に補給されたトナー
は一対の撹拌スクリュ131の相反する方向への回転作
動により2成分現像剤使用の場合にはトナーとキャリア
とは混合されて均等なトナー成分の現像剤として供給ロ
ーラ132に送られ、回転する現像スリーブ130周面
に内部の固定された磁石体によって吸着される。現像ス
リーブ130上の現像剤はさらに層厚規制部材133に
より所定の層厚とされて感光体ドラム10の周面上の現
像領域Dに搬送される。現像領域Dにおいては現像スリ
ーブ130の両側に設けた突当ローラ130Aが感光体
ドラム10に当接し、感光体ドラム10と現像スリーブ
130とは規定の間隙が作成される。
FIG. 3 is a sectional view showing a common structure of the developing devices 13. The toner replenished in the developing device 13 is a two-component developer due to the rotation operation of the pair of stirring screws 131 in opposite directions. In the case of use, the toner and the carrier are mixed and sent to the supply roller 132 as a developer having a uniform toner component, and attracted by the magnet body fixed inside the peripheral surface of the rotating developing sleeve 130. The developer on the developing sleeve 130 is further made to have a predetermined layer thickness by the layer thickness regulating member 133 and is conveyed to the developing area D on the peripheral surface of the photosensitive drum 10. In the developing area D, the abutting rollers 130A provided on both sides of the developing sleeve 130 come into contact with the photosensitive drum 10, and a prescribed gap is created between the photosensitive drum 10 and the developing sleeve 130.

【0028】前記の現像領域Dに対する現像スリーブ1
30の位置設定を図4により現像器13(C)の場合を
例として説明する。
Developing sleeve 1 for the developing area D
The position setting of 30 will be described with reference to FIG. 4 by taking the case of the developing device 13 (C) as an example.

【0029】現像器13(C)は前方及び後方の各側面
にそれぞれ一対のガイドピンPを対称位置に突設してい
て、各ガイドピンPを装置本体に固定した現像架台13
00の備える溝状をなしたガイド穴Hにスライド可能に
係合し、現像架台1300の立ち上がり面との間に挟着
した圧縮コイルバネSの反発力により感光体ドラム10
の周面側に付勢されるようになっている。
The developing device 13 (C) has a pair of guide pins P projecting symmetrically on each of the front and rear side surfaces, and the guide pins P are fixed to the main body of the developing unit 13.
00 is provided in a groove-shaped guide hole H slidably, and by the repulsive force of a compression coil spring S sandwiched between the rising surface of the developing rack 1300 and the photosensitive drum 10,
It is designed to be urged to the peripheral surface side.

【0030】前記の各ガイド穴Hは水平部分と前述した
角度θ4に平行する勾配部分とから成っていて、圧縮コ
イルバネSによる付勢の初期段階では図4(a)に示す
如く各ガイドピンPが水平部分をスライドすることによ
り現像器13(C)は感光体ドラム10の周面に向け当
初水平方向に案内されるが、付勢の終期段階では図4
(b)に示す如く各ガイドピンPが勾配部分をスライド
することにより現像スリーブ130の両側端に設けられ
た突当ローラ130Aが感光体ドラム10の周面に対し
法線方向すなわち法線ONの方向より当接して現像スリ
ーブ130はよじれの応力を受けることなく所定の現像
領域Dに対し位置設定される。なお、上記の圧縮コイル
バネSの反発力は、突当ローラ130Aが感光体ドラム
10に当接した時点で生じていることが必要で、各ガイ
ドピンPが水平部分をスライドしている間は圧縮コイル
バネSの反発力は生じない構成となっていてもよい。
Each of the guide holes H is composed of a horizontal portion and a sloped portion parallel to the angle .theta.4 described above. At the initial stage of biasing by the compression coil spring S, each guide pin P as shown in FIG. Is initially guided in the horizontal direction toward the peripheral surface of the photoconductor drum 10 by sliding on the horizontal portion, but at the final stage of urging, as shown in FIG.
As shown in (b), each guide pin P slides on the inclined portion so that the abutting rollers 130A provided on both side ends of the developing sleeve 130 are in the normal direction, that is, the normal line ON with respect to the peripheral surface of the photosensitive drum 10. The developing sleeve 130 is abutted from the direction and is set in position with respect to a predetermined developing region D without being subjected to a twisting stress. The repulsive force of the compression coil spring S needs to be generated when the abutting roller 130A comes into contact with the photosensitive drum 10, and is compressed while each guide pin P slides in the horizontal portion. The coil spring S may not have a repulsive force.

【0031】また位置設定時現像器13(C)が水平状
態に保たれることを条件とすれば、図5に示すように現
像スリーブ130側のガイド穴Hにのみ勾配部分を設け
ることによって前記の突当ローラ130Aを法線ONの
方向により当接させることも出来る。なお図5において
ガイド穴Hは2本のガイド穴として分割した形状が示さ
れているが、連続した1本のガイド穴であっても差し支
えない。
On the condition that the developing device 13 (C) is kept in the horizontal state at the time of setting the position, as shown in FIG. 5, by providing the inclined portion only in the guide hole H on the developing sleeve 130 side, The abutting roller 130A can also be brought into contact with the normal line in the direction of ON. Although the guide hole H is shown as being divided into two guide holes in FIG. 5, it may be one continuous guide hole.

【0032】また他の各現像器13(Y),13(M)
および13(K)についても前述した現像器13(C)
の場合と同様の手段により感光体ドラム10の周面に対
する位置設定が行われるが、現像器13(Y)、13
(K)のように水平線MMに対する角度が極小さい場合
には突当ローラ130Aの当接に伴う現像スリーブ13
0の変形やよじれは極めて小さいのでガイド穴Hは勾配
部分を不要とし全長を水平部分とし、或いは水平部分を
なくして全長が僅かの勾配をもたせた直線状とし法線方
向に当接するよう構成することが出来る。
Further, other developing devices 13 (Y) and 13 (M)
And the developing device 13 (C) described above for 13 (K)
The position setting with respect to the peripheral surface of the photoconductor drum 10 is performed by the same means as in the case of, but the developing devices 13 (Y), 13
When the angle with respect to the horizontal line MM is extremely small as in (K), the developing sleeve 13 accompanying the contact of the abutting roller 130A.
Since the deformation and kinking of 0 are extremely small, the guide hole H does not need a sloping portion and the entire length is a horizontal portion, or the horizontal portion is eliminated and the entire length is a straight line with a slight inclination so that the guide hole H abuts in the normal direction. You can

【0033】[0033]

【発明の効果】本発明により各現像器は何れも感光体ド
ラムの周面に対し歪みや変形を生ずることなく当接され
て所定の位置に正確に配設されることとなり、その結果
常に適正な現像作用の実施により高画質のカラー画像を
記録することの出来るカラー画像形成装置が提供される
こととなった。
According to the present invention, each developing device is brought into contact with the peripheral surface of the photosensitive drum without distortion or deformation and is accurately arranged at a predetermined position. Therefore, it is possible to provide a color image forming apparatus capable of recording a high quality color image by performing various developing operations.

【図面の簡単な説明】[Brief description of drawings]

【図1】カラー画像形成装置の断面構成図。FIG. 1 is a cross-sectional configuration diagram of a color image forming apparatus.

【図2】現像器のレイアウト図。FIG. 2 is a layout diagram of a developing device.

【図3】現像器の断面構成図。FIG. 3 is a cross-sectional configuration diagram of a developing device.

【図4】現像器の位置設定を示す説明図(その一)。FIG. 4 is an explanatory view (No. 1) showing the position setting of the developing device.

【図5】現像器の位置設定を示す説明図(その二)。FIG. 5 is an explanatory view (No. 2) showing the position setting of the developing device.

【符号の説明】[Explanation of symbols]

10 感光体ドラム 11 スコロトロン帯電器,帯電器 12 露光光学系 13 現像器 14A 転写器 14B 除電器 15 給紙カセット 16 タイミングローラ 17 定着装置 18 排紙ローラ 19 クリーニング装置 20 支持部材 130 現像スリーブ 130A 突当ローラ 131 撹拌スクリュ 132 給紙ローラ 133 層厚規制部材 1300 現像器支持基板,現像架台 D 現像領域 S 圧縮コイルバネ P ガイドピン H ガイド穴 10 Photoconductor Drum 11 Scorotron Charger, Charger 12 Exposure Optical System 13 Developing Device 14A Transfer Device 14B Electrifier 15 Paper Feed Cassette 16 Timing Roller 17 Fixing Device 18 Paper Ejection Roller 19 Cleaning Device 20 Supporting Member 130 Developing Sleeve 130A Abutment Roller 131 Stirring screw 132 Paper feed roller 133 Layer thickness regulating member 1300 Developer support substrate, development rack D Development area S Compression coil spring P Guide pin H Guide hole

───────────────────────────────────────────────────── フロントページの続き (72)発明者 小野寺 正泰 東京都八王子市石川町2970番地コニカ株式 会社内 (72)発明者 ▲浜▼田 州太 東京都八王子市石川町2970番地コニカ株式 会社内 (72)発明者 三浦 俊英 東京都小金井市緑町5丁目14番14号 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masayasu Onodera 2970 Ishikawacho, Hachioji-shi, Tokyo Konica Corporation (72) Inventor ▲ Hama ▼ Tajuta 2970 Ishikawacho, Hachioji-shi, Tokyo Konica Corporation ( 72) Inventor Toshihide Miura 5-14-14 Midoricho, Koganei-shi, Tokyo

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 像形成体の周面にそれぞれ複数の帯電手
段、像露光手段及び現像手段を配設し、前記像形成体の
一回転中に帯電、像露光及び現像を繰り返して前記像形
成体上に多色のトナー像を重ね合わせて形成後、前記ト
ナー像を転写材に一括して転写するカラー画像形成装置
において、 前記像形成体はドラム状像形成体であって、前記現像手
段は前記ドラム状像形成体の周面に対し法線方向より当
接して位置設定されることを特徴とするカラー画像形成
装置。
1. A plurality of charging means, image exposing means and developing means are provided on the peripheral surface of the image forming body, and the charging, image exposing and developing are repeated during one rotation of the image forming body to form the image forming means. In a color image forming apparatus for forming a multicolor toner image on a body by superimposing the toner images, and transferring the toner images to a transfer material at once, the image forming body is a drum-shaped image forming body, Is set in contact with the peripheral surface of the drum-shaped image forming body in the normal direction, and the position is set.
【請求項2】 前記現像手段は前記ドラム状像形成体に
対し水平方向より案内された後、前記周面に対し法線方
向より当接されるよう構成したことを特徴とする請求項
1記載のカラー画像形成装置。
2. The developing means is configured to be guided in the horizontal direction with respect to the drum-shaped image forming body and then to be brought into contact with the peripheral surface in the normal direction. Color image forming apparatus.
JP8003970A 1996-01-12 1996-01-12 Color image forming device Pending JPH09197757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8003970A JPH09197757A (en) 1996-01-12 1996-01-12 Color image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8003970A JPH09197757A (en) 1996-01-12 1996-01-12 Color image forming device

Publications (1)

Publication Number Publication Date
JPH09197757A true JPH09197757A (en) 1997-07-31

Family

ID=11571941

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8003970A Pending JPH09197757A (en) 1996-01-12 1996-01-12 Color image forming device

Country Status (1)

Country Link
JP (1) JPH09197757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11803151B2 (en) 2020-03-20 2023-10-31 Hewlett-Packard Development Company, L.P. Bush tiltable by heating belt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11803151B2 (en) 2020-03-20 2023-10-31 Hewlett-Packard Development Company, L.P. Bush tiltable by heating belt

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