JP3482549B2 - Optical system assembly equipment for image forming equipment - Google Patents
Optical system assembly equipment for image forming equipmentInfo
- Publication number
- JP3482549B2 JP3482549B2 JP08262195A JP8262195A JP3482549B2 JP 3482549 B2 JP3482549 B2 JP 3482549B2 JP 08262195 A JP08262195 A JP 08262195A JP 8262195 A JP8262195 A JP 8262195A JP 3482549 B2 JP3482549 B2 JP 3482549B2
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- image forming
- image
- exposure
- exposure optical
- 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 - Fee Related
Links
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Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Electrophotography Configuration And Component (AREA)
- Color Electrophotography (AREA)
- Color, Gradation (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、像形成体の周辺に、
複数組の像露光手段を配設し、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像形成体上にトナー像
を重ね合わせて形成したのち、該トナー像を転写材上に
一括して転写する電子写真複写機やプリンタ等の画像形
成装置において、前記複数組の像露光手段を光学系支持
体の所定位置に調整して固定させる光学系組立装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention
A plurality of sets of image exposure means are provided, charging, image exposure and development are repeated during one rotation of the image forming body to form a toner image on the image forming body in a superimposed manner, and then the toner image is transferred onto the transfer material. In an image forming apparatus such as an electrophotographic copying machine or a printer, which collectively transfers the image onto the optical system, an optical system assembling apparatus that adjusts and fixes the plurality of sets of image exposure means at predetermined positions of an optical system support.
【０００２】[0002]
【従来の技術】多色のカラー画像を形成する方法として
は、次の（Ａ），（Ｂ），（Ｃ）等が知られている。2. Description of the Related Art The following methods (A), (B) and (C) are known as methods for forming multicolored color images.
【０００３】（Ａ）画像に必要な色と同数の感光体、帯
電器、現像器等を備え、それぞれの感光体に形成した単
色のトナー像を転写体等に重ね合わせてカラー画像とす
る装置
（Ｂ）一つの感光体を複数回回転して各色毎の帯電、像
露光及び現像を繰り返してカラー画像を形成する装置
（Ｃ）一つの感光体の一回転以内に各色毎の帯電、像露
光及び現像を順次行ってカラー画像を形成する装置
しかし前記の装置（Ａ）は複数の感光体や転写体の移動
を必要とするため、装置の容積が大型化する欠点があ
る。装置（Ｂ）は帯電手段、像露光手段や感光体が一つ
であるので装置の容積が小型化されるが、形成される画
像のサイズが感光体の表面積以下に限定されるという制
約がある。装置（Ｃ）は高速の画像形成を可能するが、
感光体の一周内に帯電器、像露光手段、現像器を複数組
配置する必要があること、像露光を行う光学系が近接す
る現像器から漏れるトナーにより汚れて画質を低下させ
るおそれがあること、これを避けるため像露光手段と現
像器との間隔を大きくとる必要があり必然的に感光体の
直径が大になり装置が大型化するという矛盾があること
等の問題点がある。(A) A device having the same number of photoconductors, charging devices, developing devices, etc. as the number of colors required for an image, and forming a monochromatic toner image formed on each photoconductor on a transfer body to form a color image. (B) A device that forms a color image by repeating charging, image exposure and development for each color by rotating one photoreceptor a plurality of times (C) Charging and image exposure for each color within one rotation of one photoreceptor And a device for sequentially performing development to form a color image. However, since the device (A) requires the movement of a plurality of photoconductors and transfer members, it has a drawback of increasing the volume of the device. Since the apparatus (B) has only one charging means, image exposing means and photoconductor, the volume of the apparatus can be reduced, but the size of the image formed is limited to the surface area of the photoconductor or less. . The device (C) enables high-speed image formation,
It is necessary to dispose a plurality of sets of charging devices, image exposure means, and developing devices within one round of the photoconductor, and there is a risk that image quality will be deteriorated due to toner leaking from developing devices that are close to the optical system that performs image exposure. In order to avoid this, there is a problem that there is a contradiction that the distance between the image exposure means and the developing device needs to be large, and the diameter of the photoconductor is inevitably large and the device is large.
【０００４】装置（Ｃ）における前述したような問題点
を避ける目的から、像形成体の基体を透明体の素材によ
って形成し、その内部に複数の像露光手段を収容して、
画像を前記基体を透過して像形成体の外周に形成した感
光層に露光する形態の装置（Ｄ）が提案されている（特
開平５−３０７３０７号公報他）。For the purpose of avoiding the above-mentioned problems in the apparatus (C), the base body of the image forming body is formed of a transparent material, and a plurality of image exposing means are housed therein.
An apparatus (D) has been proposed in which an image is transmitted through the substrate and exposed on a photosensitive layer formed on the outer periphery of the image forming body (Japanese Patent Laid-Open No. 5-307307).
【０００５】画像形成装置（Ｃ）、（Ｄ）は、像形成体
を一回転させる間にカラー画像が形成できるから、画像
記録時間を短縮し高速記録することが可能であり、かつ
画質向上にも有効である。Since the image forming apparatuses (C) and (D) can form a color image while the image forming body is rotated once, the image recording time can be shortened and high speed recording can be performed, and the image quality can be improved. Is also effective.
【０００６】上記画像形成装置（Ｄ）は、透明な基体と
光半導体から成る像形成体の内方に、各色毎のライン状
像露光手段を配置した形式（以下、光学系内包型と称
す）の装置が提案されている。この光学系内包型露光手
段を有する画像形成装置は、像形成体を小型化し装置を
コンパクトに構成できる利点がある。The image forming apparatus (D) is of a type in which a line-shaped image exposing means for each color is arranged inside an image forming body composed of a transparent substrate and an optical semiconductor (hereinafter referred to as an optical system inclusion type). Device has been proposed. The image forming apparatus having the optical system-containing exposure unit has an advantage that the image forming body can be downsized and the apparatus can be configured compactly.
【０００７】[0007]
【発明が解決しようとする課題】しかし上記の光学系内
包型露光手段を有する画像形成装置は、各ライン状発光
手段による集光位置が、前記像形成体の周面の像形成面
に正確に一致し、かつ該各ライン状発光手段の各配置位
置が所定の間隔で正確に平行配置されていなければなら
ない。このため、従来は各ライン状露光光学系を光学系
支持体に装着しさらに像形成体内に装填した画像形成装
置を用いて、カラー画像プロセスを実行し、形成された
画質をチェックして、各ライン状発光手段の取り付け位
置の修正を行っていた。この位置修正のための調整作業
は熟練と時間を要し、装置組み立て上の問題点となって
いた。However, in the image forming apparatus having the above-mentioned optical system-containing exposure means, the light-converging position of each line-shaped light emitting means is accurately set on the image forming surface of the peripheral surface of the image forming body. The line-shaped light emitting means must be aligned and the respective arrangement positions of the linear light emitting means must be accurately arranged in parallel at predetermined intervals. Therefore, conventionally, an image forming apparatus in which each line-shaped exposure optical system is mounted on an optical system support and further loaded in an image forming body is used to execute a color image process, check the formed image quality, and The mounting position of the linear light emitting means was corrected. The adjustment work for correcting the position requires skill and time, which is a problem in assembling the device.
【０００８】[0008]
【課題を解決するための手段】本発明は、光学系内包型
露光手段を有する画像形成装置において、ライン状露光
光学系の光学系支持体への取り付け位置精度を向上させ
るとともに、取り付け調整作業時間の短縮と作業の容易
化を達成する画像形成装置の光学系組立装置を提供する
ことを特徴とするものである。According to the present invention, in an image forming apparatus having an optical system-containing exposure means, the accuracy of the position of attachment of the linear exposure optical system to the optical system support is improved and the attachment adjustment work time is increased. It is a feature of the invention to provide an optical system assembling apparatus for an image forming apparatus that achieves shortening of time and simplification of work.
【０００９】上記目的は、像形成体の周辺に、複数組の
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像
形成体上にトナー像を重ね合わせて形成したのち、該ト
ナー像を転写材上に一括して転写する画像形成装置の光
学系組立装置において、回転可能な前記像形成体内方で
あって、前記像形成体の回転軸と平行して配列された複
数のライン状露光光学系と、該複数のライン状露光光学
系を保持するとともに画像形成装置本体内の像形成体支
持架台に固設される光学系支持体とから成る像露光手段
は、該光学系支持体の外方であって前記ライン状露光光
学系の結像位置に固定配置した光検出手段と、前記ライ
ン状露光光学系を挟持して移動可能な挟持手段とによ
り、前記ライン状露光光学系の取り付け位置が調整され
たのち光学系支持体に固定されるようにしたことを特徴
とする画像形成装置の光学系組立装置によって達成され
る。The above object is to arrange a plurality of sets of charging means, image exposing means and developing means around the image forming body, and repeatedly charge, image expose and develop the image during one rotation of the image forming body. Light from an image forming apparatus that forms a toner image on a forming body in an overlapping manner and then collectively transfers the toner image onto a transfer material.
In the academic system assembling apparatus , a plurality of line-shaped exposure optical systems arranged inside the rotatable image forming body and in parallel with the rotation axis of the image forming body, and the plurality of line-shaped exposure optical systems are provided. The image exposure means, which comprises an optical system support which is held and fixed on an image formation body support frame in the main body of the image forming apparatus, is provided outside the optical system support and is the linear exposure light.
The mounting position of the line-shaped exposure optical system is adjusted by the photodetection unit fixedly arranged at the imaging position of the academic system and the holding unit that can move the line-shaped exposure optical system by sandwiching it . It is achieved by an optical system assembling apparatus for an image forming apparatus, characterized in that it is fixed to an optical system support after being formed.
【００１０】また上記目的は、回転可能な前記像形成体
内方であって、前記像形成体の回転軸と平行して配列さ
れた複数のライン状露光光学系手段と、該複数のライン
状露光光学系を保持するとともに画像形成装置本体内の
像形成体支持架台に固設される光学系支持体とから成る
像露光手段は、該光学系支持体の外方の移動手段に取り
付けられ移動可能に配置した光検出手段と、前記ライン
状露光光学系を挟持して固定配置された固定台とによ
り、前記ライン状露光光学系の取り付け位置が調整され
たのち光学系支持体に固定されるようにしたことを特徴
とする画像形成装置の光学系組立装置によって達成され
る。Further, the above object is to provide a plurality of linear exposure optical system means arranged inside the rotatable image forming body and in parallel with a rotation axis of the image forming body, and the plurality of line exposures. The image exposure means, which holds the optical system and is composed of an optical system support which is fixedly mounted on the image forming body support frame in the main body of the image forming apparatus, is attached to a moving means outside the optical system support and is movable. a light detecting means disposed, the line-shaped exposure optical system nipped by the fixedly positioned and fixed base by <br/> a is, the optical system after the mounting position of the line-shaped exposure optical system is adjusted supported This is achieved by an optical system assembling apparatus for an image forming apparatus, which is characterized in that it is fixed to the body.
【００１１】さらに上記目的は、回転可能な前記像形成
体内方であって、前記像形成体の回転軸と平行して配列
された複数のライン状露光光学系と、該複数のライン状
露光光学系を保持するとともに画像形成装置本体内の像
形成体支持架台に固設される光学系支持体とから成る像
露光手段は、該光学系支持体の外方の移動手段に取り付
けられ移動可能に配置した光検出手段と、前記像露光手
段を保持して固定配置された固定台とにより、前記ライ
ン状露光光学系の取り付け位置が調整されたのち光学系
支持体に固定されるようにしたことを特徴とする画像形
成装置の光学系組立装置によって達成される。Further, the above object is to provide a plurality of linear exposure optical systems arranged inside the rotatable image forming body and in parallel with a rotation axis of the image forming body, and the plurality of linear exposure optical systems. The image exposure means, which holds the system and is composed of an optical system support fixed to the image forming body support frame in the main body of the image forming apparatus, is attached to a moving means outside the optical system support so as to be movable. a light detecting means disposed more to the fixedly positioned fixing base to hold said image exposing means, the attachment position of the line-shaped exposure optical system has to be fixed to the optical system supporting body after being adjusted This is achieved by an optical system assembling apparatus for an image forming apparatus.
【００１２】[0012]
【実施例】本発明の説明に先立ち、カラー画像形成装置
の全般の構成を図１、図２および図３によって説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to the description of the present invention, the general structure of a color image forming apparatus will be described with reference to FIGS. 1, 2 and 3.
【００１３】図１は本発明に適用されるカラー画像形成
装置の一例を示すカラープリンタの断面図である。図２
は感光体ドラムと露光光学系を示す断面図である。図３
は感光体ドラム周辺の像形成手段を示す断面図である。FIG. 1 is a sectional view of a color printer showing an example of a color image forming apparatus applied to the present invention. Figure 2
FIG. 3 is a sectional view showing a photoconductor drum and an exposure optical system. Figure 3
FIG. 3 is a cross-sectional view showing an image forming unit around a photosensitive drum.
【００１４】これらの図において、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。In these figures, 10 is a drum-shaped image forming body, that is, a photosensitive drum, and a transparent conductive layer and an organic photosensitive layer are provided on the outer periphery of a cylindrical base formed by a transparent member such as optical glass or transparent acrylic resin. (OPC) is applied.
【００１５】本発明では、画像露光用の露光ビームの結
像点である感光体ドラム１０の光導電体層において、光
導電体層の光減衰特性（光キャリア生成）に対して適正
なコントラストを付与できる波長の露光光量を有してい
ればよい。従って、本発明における感光体ドラム１０の
透明基体の光透光率は、１００％である必要はなく、露
光ビームの透過時にある程度の光が吸収されるような特
性があっても構わない。透光性基体の素材としては、ソ
ーダガラス、パイレックスガラス、ホウ珪酸ガラスや一
般光学部材などに使用されるフッ素、ポリエステル、ポ
リカーボネート、ポリエチレンテレフタレートなどの各
種透光性樹脂が使用可能である。また、透光性導電層と
しては、インジウム、スズ・酸化物（ＩＴＯ）、酸化
錫、酸化鉛、酸化インジウム、ヨウ化銅やＡｕ、Ａｇ、
Ｎｉ、Ａｌなどからなる透光性を維持した金属薄膜が用
いられ、成膜法としては、真空蒸着法、活性反応蒸着
法、各種スパッタリング法、各種ＣＶＤ法、浸漬塗工
法、スプレー塗布法などが利用される。また、光導電体
層としては、アモルファスシリコン（ａ−Ｓｉ）合金感
光層、アモルファスセレン合金感光層や、各種有機感光
層（ＯＰＣ）が使用可能である。According to the present invention, in the photoconductor layer of the photoconductor drum 10 which is the image forming point of the exposure beam for image exposure, a proper contrast is provided with respect to the light attenuation characteristics (photocarrier generation) of the photoconductor layer. It suffices that the exposure light amount has a wavelength that can be applied. Therefore, the light transmissivity of the transparent substrate of the photoconductor drum 10 in the present invention does not need to be 100%, and may have a characteristic that some light is absorbed when the exposure beam is transmitted. As a material for the light-transmitting substrate, various light-transmitting resins such as soda glass, Pyrex glass, borosilicate glass, and fluorine, polyester, polycarbonate, polyethylene terephthalate used for general optical members can be used. Further, as the transparent conductive layer, indium, tin oxide (ITO), tin oxide, lead oxide, indium oxide, copper iodide, Au, Ag,
A metal thin film made of Ni, Al or the like that maintains transparency is used, and as a film forming method, a vacuum vapor deposition method, an active reaction vapor deposition method, various sputtering methods, various CVD methods, dip coating methods, spray coating methods, etc. Used. As the photoconductor layer, an amorphous silicon (a-Si) alloy photosensitive layer, an amorphous selenium alloy photosensitive layer, or various organic photosensitive layers (OPC) can be used.
【００１６】前記感光体ドラム１０の両端部は、フラン
ジ１０Ａ，１０Ｂと一体をなす。感光体ドラム１０の一
方の端部のフランジ１０Ａはカートリッジ３０に備えた
玉軸受３０Ａによって軸受支持され、他方の端部のフラ
ンジ１０Ｂは装置本体の基板４０に備えた玉軸受４１に
よって軸受支持されている。前記フランジ１０Ｂ外周に
形成された歯車１０Ｇは装置本体の駆動歯車４２に噛合
し、その動力により前記の透明導電層を接地した状態で
時計方向に回転される。Both ends of the photosensitive drum 10 are integral with the flanges 10A and 10B. The flange 10A at one end of the photosensitive drum 10 is bearing-supported by a ball bearing 30A provided in the cartridge 30, and the flange 10B at the other end is bearing-supported by a ball bearing 41 provided in a substrate 40 of the apparatus body. There is. The gear 10G formed on the outer circumference of the flange 10B meshes with the drive gear 42 of the main body of the apparatus, and the power thereof rotates clockwise while the transparent conductive layer is grounded.
【００１７】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や、鋸歯状電極とによるコロ
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-mentioned organic photosensitive layer of the photosensitive drum 10 by a grid held at a predetermined potential and a corona discharge by a discharge wire or a saw-toothed electrode. A uniform electric potential is applied to the body drum 10.
【００１８】１２は感光体ドラム１０の軸方向に配列し
た発光素子をアレイ状に一列に並べた線状のＦＬ（蛍光
発光体），ＥＬ（エレクトロルミネッセンス），ＰＬ
（プラズマ放電），ＬＥＤ（発光ダイオード）や、光シ
ャッタ機能をもつ素子を並べた線状のＬＩＳＡ（光磁気
効果光シャッタアレイ），ＰＬＺＴ（透過性圧電素子シ
ャッタアレイ），ＬＣＳ（液晶シャッタ）等のライン状
発光手段１２４と、等倍結像素子としての集光性ファイ
バーレンズアレイ１２５とから構成されるライン状露光
光学系（以下、露光光学系と称す）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 denotes a linear FL (fluorescent light-emitting body), EL (electroluminescence), PL in which light-emitting elements arranged in the axial direction of the photosensitive drum 10 are arranged in a line in an array.
(Plasma discharge), LED (light emitting diode), linear LISA (photomagnetic effect optical shutter array) in which elements having an optical shutter function are arranged, PLZT (transmissive piezoelectric element shutter array), LCS (liquid crystal shutter), etc. The line-shaped exposure optical system (hereinafter, referred to as an exposure optical system) including the line-shaped light emitting means 124 and the condensing fiber lens array 125 as an equal-magnification image forming element is used by a separate image reading device. The read image signals of the respective colors are sequentially taken out from the memory and inputted to the respective exposure optical systems 12 as electric signals.
【００１９】前記装置本体の基板４０には、ガイドピン
４３を有する蓋部材４４が固定されている。前記の各露
光光学系１２は何れも、前記蓋部材４４のガイドピン４
３と、前記カートリッジ３０に設けた基準穴３０Ｂとを
案内として固定した光学系支持体２０に取り付けられ
て、前記感光体ドラム１０の基体内部に収容される。前
記光学系支持体２０は、軸方向両端部近傍の円筒部２０
１と、中央部の六角柱状の露光光学系取付部２０２と、
前記円筒部２０１の一端に接続し前記カートリッジ３０
の基準穴３０Ｂに嵌合する軸部２０３と、前記円筒部２
０１の他端の端面に穿設された基準穴２０４とから成
り、前記露光光学系取付部２０２の各面には凹部２０５
が設けられ、前記露光光学系１２（Ｙ〜Ｋ）のライン状
発光手段１２１の基部を遊嵌可能にする。A lid member 44 having a guide pin 43 is fixed to the substrate 40 of the apparatus body. Each of the exposure optical systems 12 described above has a guide pin 4 of the lid member 44.
3 and a reference hole 30B provided in the cartridge 30 as a guide, and is attached to the optical system support 20 and housed inside the base of the photoconductor drum 10. The optical system support 20 includes a cylindrical portion 20 near both ends in the axial direction.
1, and a hexagonal prism-shaped exposure optical system mounting portion 202 in the central portion,
The cartridge 30 is connected to one end of the cylindrical portion 201.
Shaft part 203 fitted in the reference hole 30B of the
01 and a reference hole 204 formed in the other end surface of the exposure optical system 01, and a concave portion 205 is formed on each surface of the exposure optical system mounting portion 202.
Is provided so that the base of the linear light emitting means 121 of the exposure optical system 12 (Y to K) can be loosely fitted.
【００２０】１３Ｙ，１３Ｍ，１３Ｃ，１３Ｋはイエロ
ー（Ｙ），マゼンタ（Ｍ），シアン（Ｃ）および黒色
（Ｋ）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。現像スリーブ
１３０は内部に固定磁石１３１を有している。１３２は
現像剤の薄層形成部材で回転する現像スリーブ１３０の
現像領域上流側に設けられ、現像領域へ搬送される現像
剤量を規制する。１３３は現像剤の掻き取り部材で、現
像を終えた現像スリーブ１３０に付着する現像剤を掻き
取る作用をする。また１３４は新たに撹拌された現像剤
の供給を行う供給部材である。現像スリーブ１３０には
直流と交流が重畳された現像バイアスが印加され、感光
体ドラム１０と最も近接した現像領域において、非接触
の状態で現像が行われる。ここに示した実施例では現像
スリーブ１３０は感光体ドラム１０の回転に対して対向
する方向に回転しているが、この方向に限定されるもの
ではない。Reference numerals 13Y, 13M, 13C and 13K denote developing units for accommodating yellow (Y), magenta (M), cyan (C) and black (K) developers, respectively, on the peripheral surface of the photosensitive drum 10. On the other hand, a developing sleeve 130 is provided which rotates in the same direction while maintaining a predetermined gap. The developing sleeve 130 has a fixed magnet 131 inside. A developer thin layer forming member 132 is provided on the upstream side of the developing area of the rotating developing sleeve 130 and regulates the amount of the developer conveyed to the developing area. A developer scraping member 133 has a function of scraping off the developer attached to the developing sleeve 130 after the development. Reference numeral 134 is a supply member for supplying the newly stirred developer. A developing bias in which a direct current and an alternating current are superposed is applied to the developing sleeve 130, and the developing is performed in a non-contact state in the developing area closest to the photosensitive drum 10. In the illustrated embodiment, the developing sleeve 130 rotates in the direction opposite to the rotation of the photoconductor drum 10, but the direction is not limited to this.
【００２１】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.
【００２２】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.
【００２３】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 image of the original is read by an image reading apparatus separate from this apparatus, and the image read by the image pickup device or the image edited by the computer is once used as an image signal for each color of Y, M, C and K. Stored and stored in memory.
【００２４】画像記録のスタートにより感光体駆動モー
タの始動により前記の駆動歯車40Ｇが回動して感光体ド
ラム１０を時計方向へと回転し、同時に帯電器１１Ｙ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 drive gear 40G is rotated by the start of the photoconductor drive motor to rotate the photoconductor drum 10 in the clockwise direction, and at the same time, the photoconductor drum 10 is charged by the charging action of the charger 11Y. Application of electric potential is started.
【００２５】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１２Ｙ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 12Y starts exposure by an electric signal corresponding to a first color signal, that is, an image signal of yellow (Y), and the drum is rotationally scanned. An electrostatic latent image corresponding to the yellow (Y) image of the original image is formed on the photosensitive layer on the surface thereof.
【００２６】前記の潜像は現像器１３Ｙ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 13Y with the developer on the developing sleeve in a non-contact state, and a yellow (Y) toner image is formed in accordance with the rotation of the photosensitive drum 10.
【００２７】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１１Ｍの帯電作用
により電位を付与され、露光光学系１２Ｍ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１３Ｍ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 11M, and the second color signal of the exposure optical system 12M, that is, a magenta (M) image. Exposure is performed by an electric signal corresponding to the signal, and non-contact reversal development by the developing device 13M causes a magenta (M) toner image to be sequentially formed on the yellow (Y) toner image. .
【００２８】同様のプロセスにより帯電器１１Ｃ、露光
光学系１２Ｃおよび現像器１３Ｃ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１１Ｋ、露光光学系１２Ｋおよび現像器１３Ｋ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, a toner image of cyan (C) corresponding to the third color signal is further generated by the charger 11C, the exposure optical system 12C, and the developer 13C, and the charger 11K, the exposure optical system 12K, and the developer. A black (K) toner image corresponding to the fourth color signal is sequentially superposed by 13K, and a color toner image is formed on the peripheral surface of the photosensitive drum 10 within one rotation.
【００２９】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
た透明の基体を透して行われる。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。なお、各露光光学系１２の発熱によ
る感光体ドラム１０内の温度の安定化及び温度上昇の防
止は、前記光学系支持体２０に熱伝導性の良好な材料を
用い、低温の場合はヒータを用い、高温の場合はヒート
パイプを介して外部に放熱する等の措置を講ずることに
より支障のない程度迄抑制することができる。また、各
現像器１３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１３は収容する一成分或
いは二成分現像剤による非接触現像が行われて、透明電
導層を接地する感光体ドラム１０に対してトナーと同極
性の直流バイアスを印加して、露光部にトナーを付着さ
せる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 0 is performed from the inside of the drum through the transparent substrate. Therefore, the exposure of the image corresponding to the second, third and fourth color signals is performed without any influence of the toner image previously formed, and is equivalent to the image corresponding to the first color signal. It is possible to form an electrostatic latent image. In order to stabilize the temperature inside the photosensitive drum 10 and prevent the temperature from rising due to the heat generated by each exposure optical system 12, a material having good thermal conductivity is used for the optical system support 20, and a heater is used at low temperatures. When used and at a high temperature, it can be suppressed to the extent not causing any trouble by taking measures such as radiating heat to the outside through a heat pipe. Further, during the developing action of each developing device 13, a developing bias in which a direct current or an alternating current is applied to the developing sleeve 130 is applied, and the developing device 13 performs non-contact development by the one-component or two-component developer accommodated therein. Thus, a non-contact reversal development is performed in which a DC bias having the same polarity as the toner is applied to the photoconductor drum 10 having the transparent conductive layer grounded to cause the toner to adhere to the exposed portion.
【００３０】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Ｐに転写される。The color toner image thus formed on the peripheral surface of the photosensitive drum 10 is transferred onto the transfer paper P which is conveyed from the paper feed cassette 15 in the transfer device 14A and is synchronously fed by the drive of the timing roller 16. Transcribed.
【００３１】トナー像の転写を受けた転写紙Ｐ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 paper P on which the toner image has been transferred is separated from the peripheral surface of the drum by removing the charge in the static eliminator 14B, and the toner is fused by the fixing device 17, and then the transfer paper P is discharged via the paper discharge roller 18. It is discharged onto the upper tray.
【００３２】一方、転写紙Ｐを分離した感光体ドラム１
０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 1 from which the transfer paper P is separated
0 removes residual toner in the cleaning device 19,
The cleaning is continued to form the toner image of the original image, or the toner image of the original image is temporarily stopped to form a new toner image of the original image.
【００３３】前記の感光体ドラム１０、各帯電器１１、
各現像器１３とさらにクリーニング装置１９はカートリ
ッジ３０に収容され一体化された状態で画像形成装置本
体に装着される。また、ライン状発光手段１２１、集光
性ファイバーレンズアレイ１２２から成る複数の露光光
学系１２（Ｙ〜Ｋ）と光学系支持体２０とは一体の像露
光ユニットに形成され、画像形成装置本体内に直接着脱
出来るように構成されている。従って、前記カートリッ
ジ３０は、像露光手段に負荷や衝撃を与えることなく、
像露光ユニットを残して画像形成装置本体に着脱するこ
とができる。このカートリッジ着脱時に露光光学系１２
を装置本体内に残す構成は、ヒータ、ヒートパイプ、Ｌ
ＥＤを動作させるリード線、露光光学系１２等を感光体
ドラム１０の回動や感光体ドラム１０の着脱にもかかわ
らず光学系支持体１２０に固定しておくことができる特
長を有している。又感光体ドラム１０の軸心を決めるの
に利用することもできる。The photosensitive drum 10, each charger 11,
Each of the developing devices 13 and further the cleaning device 19 are mounted in the main body of the image forming apparatus while being housed in the cartridge 30 and integrated with each other. Further, the plurality of exposure optical systems 12 (Y to K) including the linear light emitting means 121 and the condensing fiber lens array 122 and the optical system support 20 are formed into an integrated image exposure unit. It is configured so that it can be directly attached to and detached from. Therefore, the cartridge 30 does not impose a load or a shock on the image exposure unit,
It can be attached to and detached from the image forming apparatus main body while leaving the image exposure unit. Exposure optical system 12 when this cartridge is attached or detached
The structure that leaves the device inside the device is a heater, heat pipe, L
It has a feature that the lead wire for operating the ED, the exposure optical system 12 and the like can be fixed to the optical system support 120 despite the rotation of the photosensitive drum 10 and the attachment / detachment of the photosensitive drum 10. . It can also be used to determine the axis of the photosensitive drum 10.
【００３４】本発明のカラー画像形成装置では、ＬＥＤ
等の発光素子１２１と集光性ファイバーレンズアレイ１
２２を用いた露光光学系１２を感光体ドラム１０の内側
に配置し、露光光学系１２による像露光位置を現像ケー
シング１３５内で現像スリーブ１３０の上流側に設け
た。In the color image forming apparatus of the present invention, the LED
Light-emitting element 121 such as a light-collecting fiber lens array 1
The exposure optical system 12 using 22 is disposed inside the photosensitive drum 10, and the image exposure position by the exposure optical system 12 is provided in the developing casing 135 on the upstream side of the developing sleeve 130.
【００３５】［実施例１］ （請求項１の発明）
この実施例は、固定した支柱に光検出手段と露光光学系
調整具とから成る一つのユニットを所定位置に設置し、
光学系支持体を回転させて露光光学系を調整する形式の
光学系組立装置である。[Embodiment 1] (Invention of Claim 1) In this embodiment, one unit consisting of a light detecting means and an exposure optical system adjusting tool is installed at a predetermined position on a fixed column.
This is an optical system assembling apparatus of a type in which an optical system support is rotated to adjust an exposure optical system.
【００３６】図４は露光光学系１２と光学系組立装置の
斜視図、図５は該露光光学系１２と光学系組立装置の正
面断面図、図６はその平面図、図７は図５におけるＡ−
Ａ矢視図、図８は図５におけるＢ矢視図である。FIG. 4 is a perspective view of the exposure optical system 12 and the optical system assembling apparatus, FIG. 5 is a front sectional view of the exposure optical system 12 and the optical system assembling apparatus, FIG. 6 is its plan view, and FIG. A-
8 is a view on arrow A, and FIG. 8 is a view on arrow B in FIG.
【００３７】光学系支持体２０には、ライン状発光手段
１２１と集光性ファイバーレンズアレイ１２２とが一体
に形成された複数の露光ユニットが遊嵌して装填可能な
複数の凹部２０５が穿設されている。The optical system support 20 is provided with a plurality of recesses 205 into which a plurality of exposure units each having a linear light emitting means 121 and a condensing fiber lens array 122 integrally formed can be loosely fitted and loaded. Has been done.
【００３８】光学系組立装置５０の基板５１上の中央付
近には、軸受５３を介して回転可能な回転テーブル５２
が設けてある。該回転テーブル５２は所定の角度位置に
設定されたのち、クランプ５４によって基板５１に固定
される。該回転テーブル５２の回転中心部には基準ピン
５５Ａが突出していて前記光学系支持体２０の基準穴２
０４に嵌合して光学系支持体２０のセンタ位置を決め
る。また半径方向には位置決めピン５５Ｂが突出してい
て、前記光学系支持体２０を回転テーブル５２上に設置
したとき、光学系支持体２０の半径方向穴に嵌合して、
該光学系支持体２０の回転方向の位置決めをする。Near the center of the substrate 51 of the optical system assembling apparatus 50, a rotary table 52 rotatable via a bearing 53.
Is provided. The rotary table 52 is set at a predetermined angular position and then fixed to the substrate 51 by a clamp 54. A reference pin 55A is projected at the center of rotation of the rotary table 52, and the reference hole 2 of the optical system support 20 is provided.
04 is fitted to determine the center position of the optical system support 20. Further, a positioning pin 55B is projected in the radial direction, and when the optical system support 20 is installed on the rotary table 52, it is fitted in a radial hole of the optical system support 20,
The optical system support 20 is positioned in the rotation direction.
【００３９】前記基板５１上の左右両端付近には、支柱
５６、５７が直立固定されている。該支柱５６、５７の
上面側には、上板５８が着脱可能になっている。該上板
５８の中央付近には基準穴が穿設されていて、前記回転
テーブル５２上に設置された光学系支持体２０の上方の
軸部２０３に嵌合する。上板５８はこの基準穴および軸
部２０３の嵌合により光学系支持体２０を位置決めした
のち前記支柱５６、５７の上面に、ねじ等により固定さ
れる。Posts 56 and 57 are fixed upright near the left and right ends of the substrate 51. An upper plate 58 is attachable to and detachable from the upper surfaces of the columns 56 and 57. A reference hole is formed near the center of the upper plate 58, and is fitted into the shaft portion 203 above the optical system support 20 installed on the rotary table 52. The upper plate 58 positions the optical system support 20 by fitting the reference hole and the shaft portion 203, and then is fixed to the upper surfaces of the columns 56 and 57 by screws or the like.
【００４０】図９（Ａ）は本発明による光検出手段の平
面図である。前記支柱５７の前記ライン状発光手段１２
１両端部に対向する側には、光検出センサ６０Ａ，６０
Ｂが上下に配設されている。該光検出手段６０Ａ，６０
Ｂは例えば二次元ＣＣＤセンサから成り、基準の像形成
体１０を用いた露光光学系１２による結像位置、即ち基
準の像形成体１０の外周面の像形成基準位置に予め設定
されている。そして、前記ライン状発光手段１２１の両
端部の特定の画素を点灯させた状態で、光検出手段６０
Ａ，６０Ｂで検出しながら該ライン状発光手段１２１の
位置やピントを調整する。光検出手段６０Ａ，６０Ｂは
図１０に示す検出回路及び表示手段に接続し、出力がＣ
ＲＴに表示される。FIG. 9A is a plan view of the light detecting means according to the present invention. The line-shaped light emitting means 12 of the column 57
1 The light detection sensors 60A, 60
B is arranged vertically. The light detecting means 60A, 60
B is composed of, for example, a two-dimensional CCD sensor, and is preset at the image forming position by the exposure optical system 12 using the reference image forming body 10, that is, the image forming reference position on the outer peripheral surface of the reference image forming body 10. Then, with the specific pixels at both ends of the linear light emitting means 121 being lit, the light detecting means 60
The position and the focus of the linear light emitting means 121 are adjusted while being detected by A and 60B. The light detection means 60A and 60B are connected to the detection circuit and display means shown in FIG.
Displayed on RT.
【００４１】図１０は、露光光学系１２の調整制御手段
を示すブロック図である。前記露光光学系１２の両端の
特定の画素に対応するライン状発光手段（ＬＥＤアレ
イ）１２１を点灯させた状態で、光検出手段（二次元Ｃ
ＣＤセンサ）６０Ａ，６０Ｂにより、点灯しているＬＥ
Ｄの位置及び輝度（ピント）を測定する。光検出手段６
０Ａ，６０Ｂは、例えば５００×５００画素から成る二
次元ＣＣＤセンサであり、１画素のサイズは５〜１０μ
ｍである。前記光学系調整手段４０により露光光学系１
２をＸ，Ｙ，Ｚ方向に微小移動させて、点灯している特
定のＬＥＤの結像位置を、ＣＣＤセンサのエリア内の特
定された画素に一致したことを制御手段により検出し、
ＣＲＴモニターに表示する。FIG. 10 is a block diagram showing the adjustment control means of the exposure optical system 12. With the linear light emitting means (LED array) 121 corresponding to specific pixels at both ends of the exposure optical system 12 turned on, the light detecting means (two-dimensional C
The CD sensor) 60A, 60B turns the LE on.
The position and brightness (focus) of D are measured. Light detection means 6
Reference numerals 0A and 60B are two-dimensional CCD sensors composed of, for example, 500 × 500 pixels, and the size of one pixel is 5 to 10 μm.
m. The exposure optical system 1 is controlled by the optical system adjusting means 40.
2 is moved slightly in the X, Y, and Z directions, and it is detected by the control means that the image-forming position of the specific LED that is lit matches the specified pixel in the area of the CCD sensor.
Display on CRT monitor.
【００４２】図９（Ｂ）は、露光光学系１２の下端部を
挟持して移動可能な下端部挟持手段の平面図である。前
記基板５１には平行溝部５１Ａが設けてあリ、該平行溝
部５１Ａ内で移動台６１がＸ方向に移動可能である。該
移動台６１の上部には、挟持部材６２が前記移動台６１
に対してＹ方向及びＺ方向に移動可能に保持されてい
る。該挟持部材６２の先端部は前記露光光学系の集光性
ファイバーレンズアレイ１２２の端部の下部を挟持する
固定挟持部６３を形成している。該固定挟持部６３は支
点部６４を介して可動挟持部材６５に連結し鋏状をなし
ている。６６は固定挟持部６３と可動挟持部６５の各把
手部に装着された圧縮ばねである。該圧縮ばね６６に抗
して把手部を把持すれば、固定挟持部材６３と可動挟持
部材６５の各挟持部が開く。該把持部から指先を離せば
圧縮ばね６６より挟持部が閉じて、前記集光性ファイバ
ーレンズアレイ１２２の先端部を挟持することができ
る。FIG. 9 (B) is a plan view of the lower end holding means which can move by holding the lower end of the exposure optical system 12. The substrate 51 is provided with a parallel groove portion 51A, and the movable table 61 is movable in the X direction within the parallel groove portion 51A. On the upper part of the moving table 61, a holding member 62 is provided.
It is held so as to be movable in the Y and Z directions. The tip of the holding member 62 forms a fixed holding portion 63 for holding the lower part of the end portion of the condensing fiber lens array 122 of the exposure optical system. The fixed holding portion 63 is connected to the movable holding member 65 via the fulcrum portion 64 and has a scissor shape. Reference numeral 66 is a compression spring attached to each grip portion of the fixed holding portion 63 and the movable holding portion 65. When the grip portion is gripped against the compression spring 66, the holding portions of the fixed holding member 63 and the movable holding member 65 are opened. When the fingertip is released from the grip portion, the holding portion is closed by the compression spring 66, and the tip portion of the condensing fiber lens array 122 can be held.
【００４３】図９（Ｃ）は、露光光学系１２の上端部を
挟持して移動可能な上端部挟持手段の平面図である。前
記支柱５７の上部にはコ字形をなす上部支柱５７Ａが一
体に固定されていて、該上部支柱５７Ａの上部先端付近
には、前記下端部挟持手段と同形状の上端部挟持手段が
設けてある。前記上部支柱５７Ａには平行溝部５７Ｂが
設けてあリ、該平行溝部５７Ｂ内で移動台７１がＸ方向
に移動可能である。該移動台７１の下部には、挟持部材
７２が前記移動台７１に対してＹ方向及びＺ方向に移動
可能に保持されている。該挟持部材７２の先端部は前記
露光光学系の集光性ファイバーレンズアレイ１２２の端
部の上部を挟持する固定挟持部７３を形成している。該
固定挟持部７３は支点部７４を介して可動挟持部材７５
に連結し鋏状をなしている。７６は固定挟持部７３と可
動挟持部７５の各把手部に装着された圧縮ばねである。
該圧縮ばね７６に抗して把手部を把持すれば、固定挟持
部材７３と可動挟持部材７５の各挟持部が開く。該把持
部から指先を離せば圧縮ばね７６により挟持部が閉じ
て、前記集光性ファイバーレンズアレイ１２２の先端部
を挟持することができる。FIG. 9C is a plan view of the upper end holding means which holds the upper end of the exposure optical system 12 and is movable. A U-shaped upper strut 57A is integrally fixed to the upper portion of the strut 57, and an upper end holding means having the same shape as the lower end holding means is provided near the upper end of the upper support 57A. . The upper support column 57A is provided with a parallel groove portion 57B, and the movable table 71 is movable in the X direction within the parallel groove portion 57B. A nipping member 72 is held below the movable table 71 so as to be movable in the Y and Z directions with respect to the movable table 71. A tip end portion of the holding member 72 forms a fixed holding portion 73 for holding the upper portion of the end portion of the condensing fiber lens array 122 of the exposure optical system. The fixed holding portion 73 is provided with a movable holding member 75 via a fulcrum portion 74.
It is connected to and has a scissor shape. Reference numeral 76 is a compression spring attached to each grip portion of the fixed holding portion 73 and the movable holding portion 75.
When the grip portion is gripped against the compression spring 76, the holding portions of the fixed holding member 73 and the movable holding member 75 are opened. When the fingertip is released from the grip portion, the holding portion is closed by the compression spring 76, and the tip portion of the condensing fiber lens array 122 can be held.
【００４４】次に、前記光学系組立装置を用いて像露光
手段を調整する工程を説明する。Next, the step of adjusting the image exposure means using the optical system assembling apparatus will be described.
【００４５】（１）前記支持部材２０の下方の基準穴２
０４を回転テーブル５２の基準ピン５５Ａに嵌合させる
とともに、位置決めピン５５Ｂにより回転方向の位置決
めを行い、回転テーブル５２上の所定位置に設置する。(1) Reference hole 2 below the support member 20
04 is fitted to the reference pin 55A of the rotary table 52, the positioning in the rotational direction is performed by the positioning pin 55B, and the rotary table 52 is set at a predetermined position.
【００４６】（２）光学系支持体２０の上方の軸部２０
３に上板５８の基準穴を嵌合させ、さらに上板５８の両
端部付近の位置決めピン５８Ａを支柱５６，５７上部の
穴に嵌合させたのち、ねじ５８Ｂにより固定する。(2) Shaft portion 20 above the optical system support 20
3, the reference holes of the upper plate 58 are fitted, and the positioning pins 58A near both ends of the upper plate 58 are fitted in the holes of the upper portions of the columns 56 and 57, and then fixed by the screws 58B.
【００４７】（３）ひとつの露光光学系、例えばライン
状発光手段１２１Ｙと集光性ファイバーレンズアレイ１
２２Ｙとから成るユニット状の露光光学系１２Ｙを前記
光学系支持体２０の凹部２０５に仮挿入したのち、光学
系支持体２０を回転テーブル５２とともに回転させて、
所定の回転位置に停止し、クランプ５４により固定す
る。この停止位置において、前記集光性ファイバーレン
ズアレイ１２２Ｙの上部前面は前記光検出手段６０Ａに
正対する。(3) One exposure optical system, for example, the linear light emitting means 121Y and the converging fiber lens array 1
After the unitary exposure optical system 12Y composed of 22Y is temporarily inserted into the recess 205 of the optical system support 20, the optical system support 20 is rotated together with the rotary table 52,
It stops at a predetermined rotation position and is fixed by a clamp 54. At this stop position, the upper front surface of the condensing fiber lens array 122Y faces the light detecting means 60A.
【００４８】（４）前記露光光学系１２Ｙの上部を前記
上端部挟持手段の固定挟持部７３と可動挟持部７５間に
挟持させる。また、該露光光学系１２Ｙの下部を前記下
端部挟持手段の固定挟持部６３と可動挟持部６５間に挟
持させる。(4) The upper portion of the exposure optical system 12Y is held between the fixed holding portion 73 and the movable holding portion 75 of the upper end holding means. Further, the lower part of the exposure optical system 12Y is held between the fixed holding portion 63 and the movable holding portion 65 of the lower end holding means.
【００４９】（５）前記露光光学系１２Ｙのライン状発
光手段１２４Ｙのうち、両端部の特定の画素を発光さ
せ、集光性ファイバーレンズアレイ１２２Ｙを介して前
記光検出手段６０Ａ，６０Ｂに結像させる。(5) Of the linear light emitting means 124Y of the exposure optical system 12Y, specific pixels at both ends are caused to emit light, and an image is formed on the light detecting means 60A, 60B via the condensing fiber lens array 122Y. Let
【００５０】（６）上記上端部挟持手段及び下端部挟持
手段をそれぞれＸ方向、Ｙ方向、Ｚ方向に微少移動さ
せ、前記光検出手段６０Ａ，６０Ｂにより点灯している
画素の位置と結像状態とを検出回路及び表示手段により
検出し、露光光学系１２Ｙの所定の位置を設定する。(6) The upper end clamping means and the lower end clamping means are slightly moved in the X, Y, and Z directions, respectively, and the positions of the pixels illuminated by the photodetectors 60A and 60B and the image formation state. Are detected by the detection circuit and the display means, and a predetermined position of the exposure optical system 12Y is set.
【００５１】（７）光学系支持体２０の凹部２０５と前
記露光光学系１２Ｙとの隙間に接着剤を注入し、露光光
学系１２Ｙを固着する。(7) An adhesive is injected into the gap between the recess 205 of the optical system support 20 and the exposure optical system 12Y to fix the exposure optical system 12Y.
【００５２】（８）以下、同様にして、光学系支持体２
０を所定角度移動させ、光学系支持体２０に露光光学系
１２Ｍ，１２Ｃ，１２Ｋを順次位置決め固着する。すべ
ての露光光学系を光学系支持体２０に装着完了後、前記
上板５８を取り外し、このユニット化された調整済みの
像露光手段を回転テーブル５２上から取り出す。(8) Thereafter, the optical system support 2 is similarly processed.
0 is moved by a predetermined angle, and the exposure optical systems 12M, 12C and 12K are sequentially positioned and fixed to the optical system support 20. After mounting all the exposure optical systems on the optical system support 20, the upper plate 58 is removed, and the unitized and adjusted image exposure means is taken out from the rotary table 52.
【００５３】［実施例２］ （請求項２の発明）
この実施例は、固定した光学系支持体に対して、光検出
手段と露光光学系調整具を一体にした一つのユニットを
回転させて露光光学系を調整する形式の光学系組立装置
である。[Embodiment 2] (Invention of Claim 2) In this embodiment, one unit in which the light detecting means and the exposure optical system adjusting tool are integrated is rotated with respect to the fixed optical system support. This is an optical system assembling apparatus of a type that adjusts an exposure optical system.
【００５４】図１１は露光光学系１２と光学系組立装置
の正面断面図、図１２は図１１におけるＡ−Ａ矢視図、
図１３は図１１におけるＢ矢視図である。なお、図中、
前記実施例と同じ機能を有する部分には、同符号を付し
ている。FIG. 11 is a front sectional view of the exposure optical system 12 and the optical system assembling apparatus, and FIG. 12 is a view taken along the line AA in FIG.
FIG. 13 is a view on arrow B in FIG. In the figure,
The parts having the same functions as those in the above embodiment are designated by the same reference numerals.
【００５５】光学系支持体２０には、ライン状発光手段
１２１と集光性ファイバーレンズアレイ１２２とが一体
に形成された複数の露光ユニットが遊嵌して装填可能な
複数の凹部１２０Ｓが穿設されている。The optical system support 20 is provided with a plurality of recesses 120S into which a plurality of exposure units each having a linear light emitting means 121 and a condensing fiber lens array 122 integrally formed can be loosely fitted and loaded. Has been done.
【００５６】光学系組立装置８０の基板８１上の中央付
近には、基準ピン５５Ａが、半径方向には位置決めピン
５５Ｂが突出していて、前記光学系支持体２０を基板８
１上に設置したとき、光学系支持体２０の中心穴及び半
径方向穴に嵌合して、該光学系支持体２０の位置決めを
する。A reference pin 55A and a positioning pin 55B project in the radial direction in the vicinity of the center of the substrate 81 of the optical system assembling apparatus 80, so that the optical system support 20 is placed on the substrate 8.
When the optical system support 20 is installed on the optical system support 20, the optical system support 20 is fitted into the center hole and the radial hole to position the optical system support 20.
【００５７】前記基板８１上の左右両端付近には、四本
の支柱８２Ａ，８２Ｂ，８２Ｃ，８２Ｄが直立固定され
ている。該支柱８２Ａ〜８２Ｄの上面側には、上基板８
４が水平状態に固定されている。該上基板８３の中央に
は光学系支持体２０が通過可能な開口８３１が穿設され
ている。該上基板８３の上面側には、上板８４が着脱可
能に装着される。該上板８４の中央付近には基準穴が穿
設されていて、前記基板８１上に設置された光学系支持
体２０の上方の軸部２０３に嵌合する。上板８４は基準
穴および軸部２０３により光学系支持体２０を位置決め
したのち前記上基板８３の上面に、位置決めピン５８Ａ
により所定位置に設置され、ねじ５８Ｂにより固定され
る。Four columns 82A, 82B, 82C and 82D are fixed upright near the left and right ends of the substrate 81. The upper substrate 8 is provided on the upper surface side of the columns 82A to 82D.
4 is fixed horizontally. An opening 831 through which the optical system support 20 can pass is formed in the center of the upper substrate 83. An upper plate 84 is detachably attached to the upper surface of the upper substrate 83. A reference hole is formed near the center of the upper plate 84, and the upper plate 84 is fitted to the shaft portion 203 above the optical system support 20 installed on the substrate 81. The upper plate 84 positions the optical system supporter 20 with the reference hole and the shaft portion 203, and then the positioning pin 58A is provided on the upper surface of the upper substrate 83.
It is installed at a predetermined position by and is fixed by a screw 58B.
【００５８】前記基板８１の光学系支持体設置面の周辺
近傍には、３個のレール支持具８５が固設されていて、
切り欠き円形状の下レール８６を支持している。また、
上基板８３の下面側にも、３個のレール支持具８７が固
設されていて、上記と同形状の切り欠き円形状の上レー
ル８８を支持している。Three rail supporting members 85 are fixedly provided near the periphery of the optical system supporting member mounting surface of the substrate 81.
A notched circular lower rail 86 is supported. Also,
Three rail support members 87 are also fixedly provided on the lower surface side of the upper substrate 83, and support a notched circular upper rail 88 having the same shape as the above.
【００５９】前記下レール８６と上レール８８とに軸受
８９Ａを介して摺動する移動機枠８９は、平行配置され
た基板８１と上基板８３間とに挟持され、移動可能にな
っている。該移動機枠８９には、実施例１と同様の光検
出手段６０Ａ，６０Ｂ及び像露光光学系上端部挟持手
段、像露光光学系下端部挟持手段が上下方向に配列され
固定されている。The moving machine frame 89 which slides on the lower rail 86 and the upper rail 88 via a bearing 89A is sandwiched between a substrate 81 and an upper substrate 83 which are arranged in parallel, and is movable. On the moving machine frame 89, the light detecting means 60A and 60B, the upper end clamping means of the image exposure optical system, and the lower end clamping means of the image exposure optical system similar to those of the first embodiment are vertically arranged and fixed.
【００６０】即ち、前記移動機枠８９の前記ライン状露
光手段１２５両端部に対向する側には、光検出手段６０
Ａ，６０Ｂが上下に配設されている。該光検出手段６０
Ａ，６０Ｂは例えば二次元ＣＣＤセンサから成り、基準
の像形成体１０を用いた露光光学系１２による結像位
置、即ち基準の像形成体１０の外周面の像形成基準位置
に予め設定されている。前記ライン状発光手段１２１の
両端部の特定の画素を点灯させた状態で、光検出手段６
０Ａ，６０Ｂで検出しながら該ライン状発光手段１２１
の位置やピントを調整する。光検出手段６０Ａ，６０Ｂ
は図１０に示す検出回路及び表示手段に接続し、出力が
ＣＲＴに表示される。That is, the light detecting means 60 is provided on the side of the moving machine frame 89 which faces both ends of the linear exposure means 125.
A and 60B are arranged vertically. The light detecting means 60
A and 60B are, for example, two-dimensional CCD sensors, and are preset at the image forming position by the exposure optical system 12 using the reference image forming body 10, that is, the image forming reference position on the outer peripheral surface of the reference image forming body 10. There is. With the specific pixels at both ends of the line-shaped light emitting means 121 turned on, the light detecting means 6
The line-shaped light emitting means 121 while detecting with 0A and 60B.
Adjust the position and focus of. Light detection means 60A, 60B
Is connected to the detection circuit and display means shown in FIG. 10, and the output is displayed on the CRT.
【００６１】下端部挟持手段は像露光光学系１２の集光
性ファイバーレンズアレイ１２２の下端部を挟持して
Ｘ，Ｙ，Ｚ方向に移動可能であり、前記の部材６１〜６
６とほぼ同様な構造をなす。上端部挟持手段も同様に像
露光光学系１２の集光性ファイバーレンズアレイ１２２
の上端部を挟持してＸ，Ｙ，Ｚ方向に移動可能であり、
前記の部材７１〜７６とほぼ同様な構造をなす。The lower end holding means holds the lower end of the converging fiber lens array 122 of the image exposure optical system 12 and can move in the X, Y, and Z directions, and the members 61 to 6 described above.
It has a structure similar to that of No. 6. Similarly, the upper end clamping means also has a condensing fiber lens array 122 of the image exposure optical system 12.
It is possible to move in X, Y and Z directions by sandwiching the upper end of
The structure is similar to that of the members 71 to 76.
【００６２】次に、前記光学系組立装置を用いて像露光
手段を調整する工程を説明する。Next, the step of adjusting the image exposure means using the optical system assembling apparatus will be described.
【００６３】（１）前記光学系支持体２０を前記上基板
８３の開口８３Ａから挿入し、一方の回転中心穴を基板
８１の基準ピン５５Ａ及び位置決めピン５５Ｂに嵌合さ
せ、基板８１上に設置する。(1) The optical system support 20 is inserted from the opening 83A of the upper substrate 83, one rotation center hole is fitted to the reference pin 55A and the positioning pin 55B of the substrate 81, and the optical system support 20 is set on the substrate 81. To do.
【００６４】（２）上板５８の基準穴を光学系支持体２
０の軸部２０３に嵌合させ、さらに上板５８の両端部付
近の位置決めピン５８Ａを上基板８３上部の穴に嵌合さ
せたのち、ねじ５８Ｂにより固定する。(2) The reference hole of the upper plate 58 is used as the optical system support 2
No. 0 shaft portion 203 is fitted, and positioning pins 58A near both ends of the upper plate 58 are fitted in holes in the upper portion of the upper substrate 83, and then fixed by screws 58B.
【００６５】（３）ひとつの露光光学系、例えばライン
状発光手段１２１Ｙと集光性ファイバーレンズアレイ１
２２Ｙとから成るユニット状の露光光学系１２Ｙを前記
光学系支持体２０の凹部２０５に挿入したのち、移動機
枠８９をレール８６，８８に沿って円周方向に回転させ
て、所定の回転位置に停止させ、ねじ８９Ｂにより固定
させる。この停止位置は目盛り合わせしてもよいし、位
置決めピンによって固定してもよい。この停止位置にお
いて、前記集光性ファイバーレンズアレイ１２２の上部
前面は前記光検出手段６０Ａに正対する。(3) One exposure optical system, for example, the linear light emitting means 121Y and the converging fiber lens array 1
After the unit-shaped exposure optical system 12Y including 22Y is inserted into the recess 205 of the optical system support 20, the movable machine frame 89 is rotated in the circumferential direction along the rails 86 and 88 to a predetermined rotational position. , And fix with screws 89B. This stop position may be calibrated or fixed by a positioning pin. At this stop position, the upper front surface of the condensing fiber lens array 122 faces the light detecting means 60A.
【００６６】（４）前記露光光学系１２Ｙの上部を前記
上端部挟持手段の固定挟持部７３と可動挟持部７５間に
挟持させる。また、該露光光学系１２Ｙの下部を前記下
端部挟持手段の固定挟持部６３と可動挟持部６５間に挟
持させる。(4) The upper portion of the exposure optical system 12Y is held between the fixed holding portion 73 and the movable holding portion 75 of the upper end holding means. Further, the lower part of the exposure optical system 12Y is held between the fixed holding portion 63 and the movable holding portion 65 of the lower end holding means.
【００６７】（５）前記露光光学系１２Ｙのライン状発
光手段１２１Ｙのうち、両端の特定画素を発光させ、集
光性ファイバーレンズアレイ１２２Ｙを介して前記光検
出手段６０Ａ，６０Ｂに結像させる。(5) Of the line-shaped light emitting means 121Y of the exposure optical system 12Y, specific pixels at both ends are caused to emit light, and an image is formed on the light detecting means 60A, 60B via the condensing fiber lens array 122Y.
【００６８】（６）上記上端部挟持手段及び下端部挟持
手段をそれぞれＸ方向、Ｙ方向、Ｚ方向に微少移動さ
せ、前記光検出手段６０Ａ，６０Ｂにより点灯している
画素の位置と結像状態とを検出回路及び表示手段により
検出し、露光光学系１２Ｙの所定の位置を設定する。(6) The upper end clamping means and the lower end clamping means are slightly moved in the X, Y and Z directions, respectively, and the positions of the pixels turned on by the photodetectors 60A and 60B and the image formation state. Are detected by the detection circuit and the display means, and a predetermined position of the exposure optical system 12Y is set.
【００６９】（７）光学系支持体２０の凹部２０５と前
記露光光学系１２Ｙとの隙間に接着剤を注入し、露光光
学系１２Ｙを固着する。(7) An adhesive is injected into the gap between the concave portion 205 of the optical system support 20 and the exposure optical system 12Y to fix the exposure optical system 12Y.
【００７０】（８）次に、上記上端部挟持手段及び下端
部挟持手段の可動挟持部材６５，７５を開いて退避さ
せ、ねじ８９Ｂまたは位置決めピンを取り外し、移動機
枠８９を所定角度移動させて固定し、定位置に固定され
た光学系支持体２０に次の露光光学系１２Ｍの位置調整
を上記と同様に行い、接着剤固定させる。以下、同様に
して、光学系支持体２０に露光光学系１２Ｃ，１２Ｋを
順次位置調整して固着する。(8) Next, the movable holding members 65 and 75 of the upper end holding means and the lower end holding means are opened and retracted, the screws 89B or the positioning pins are removed, and the moving machine frame 89 is moved by a predetermined angle. The position of the next exposure optical system 12M is adjusted on the optical system support 20 fixed and fixed at a fixed position in the same manner as described above, and the adhesive is fixed. Thereafter, similarly, the exposure optical systems 12C and 12K are sequentially adjusted and fixed to the optical system support 20 in the same manner.
【００７１】（９）すべての露光光学系を光学系支持体
２０に装着完了後、前記上板８４を取り外し、このユニ
ット化された像露光手段を基板８１上から取り出す。(9) After mounting all the exposure optical systems on the optical system support 20, the upper plate 84 is removed, and the unitized image exposure means is taken out from the substrate 81.
【００７２】［実施例３］ （請求項３の発明）
この実施例は、固定した光学系支持体に対して、光検出
手段と露光光学系位置調整具から成るユニットを複数組
固定配置し、露光光学系を調整する形式の光学系組立装
置である。[Embodiment 3] (Invention of Claim 3) In this embodiment, a plurality of units each consisting of a light detecting means and an exposure optical system position adjusting tool are fixedly arranged on a fixed optical system support, This is an optical system assembling apparatus of a type that adjusts an exposure optical system.
【００７３】図１４は露光光学系１２と光学系組立装置
の正面断面図、図１５は図１４におけるＡ−Ａ矢視図、
図１６は図１４におけるＢ矢視図である。なお、図中、
前記実施例と同じ機能を有する部分には、同符号を付し
ている。FIG. 14 is a front sectional view of the exposure optical system 12 and the optical system assembling apparatus, and FIG. 15 is a view taken along the line AA in FIG.
FIG. 16 is a view on arrow B in FIG. In the figure,
The parts having the same functions as those in the above embodiment are designated by the same reference numerals.
【００７４】光学系組立装置９０の基板９１上の中央付
近には、基準ピン５５Ａが、半径方向には位置決めピン
５５Ｂが突出していて、前記光学系支持体２０を基板９
１上に設置したとき、光学系支持体２０の中心穴及び半
径方向穴に嵌合して、該光学系支持体２０の位置決めを
する。A reference pin 55A and a positioning pin 55B project in the radial direction in the vicinity of the center of the substrate 91 of the optical system assembling apparatus 90, and the optical system support 20 is attached to the substrate 9.
When the optical system support 20 is installed on the optical system support 20, the optical system support 20 is fitted into the center hole and the radial hole to position the optical system support 20.
【００７５】前記基板９１上の左右両端付近には、四本
の支柱９２Ａ，９２Ｂ，９２Ｃ，９２Ｄが直立固定され
ている。該支柱９２Ａ〜９２Ｄの上面側には、上基板９
３が水平状態に固定されている。該上基板９３の中央に
は光学系支持体２０が通過可能な開口９３１が穿設され
ている。該上基板９３の正面側には、上板９４が着脱可
能に装着される。該上板９４の中央付近には基準穴が穿
設されていて、前記基板９１上に設置された光学系支持
体２０の上方の軸部２０５に嵌合する。上板９４は基準
穴と軸部２０５とにより光学系支持体２０を位置決めし
たのち、前記上基板９３の上面に、位置決めピン５８Ａ
により所定位置に設置され、ねじ５８Ｂにより固定され
る。Four columns 92A, 92B, 92C and 92D are vertically fixed on the substrate 91 near the left and right ends. The upper substrate 9 is provided on the upper surface side of the columns 92A to 92D.
3 is fixed horizontally. An opening 931 through which the optical system support 20 can pass is formed in the center of the upper substrate 93. An upper plate 94 is detachably attached to the front side of the upper substrate 93. A reference hole is formed near the center of the upper plate 94, and the upper plate 94 is fitted into the shaft portion 205 above the optical system support 20 installed on the substrate 91. The upper plate 94 positions the optical system support 20 by the reference hole and the shaft portion 205, and then the positioning pin 58A is provided on the upper surface of the upper substrate 93.
It is installed at a predetermined position by and is fixed by a screw 58B.
【００７６】前記各支柱９２Ａ〜９２Ｄには、実施例１
とほぼ同様の光検出手段６０Ａ，６０Ｂ及び像露光光学
系上端部挟持手段、像露光光学系下端部挟持手段が上下
方向に配列され固定されている。The first embodiment is attached to each of the columns 92A to 92D.
The light detecting means 60A, 60B, the upper end clamping means for the image exposure optical system, and the lower end clamping means for the image exposure optical system, which are substantially the same as the above, are vertically arranged and fixed.
【００７７】即ち、前記支柱９２Ａの前記ライン状発光
手段１２１Ｙの両端部に対向する側には、光検出手段６
０Ａ，６０Ｂが上下に配設されている。該光検出センサ
６０Ａ，６０Ｂは例えば二次元ＣＣＤセンサから成り、
基準の像形成体１０を用いた露光光学系１２による結像
位置、即ち基準の像形成体１０の外周面の像形成基準位
置に予め設定されている。前記ライン状発光手段１２１
の両端部の特定の画素を点灯させた状態で、光検出手段
６０Ａ，６０Ｂで検出しながら該ライン状発光手段１２
１の位置やピントを調整する。光検出手段６０Ａ，６０
Ｂは図１０に示す検出回路及び表示手段に接続し、出力
がＣＲＴに表示される。That is, the light detecting means 6 is provided on the side of the column 92A facing both ends of the linear light emitting means 121Y.
0A and 60B are arranged vertically. The light detection sensors 60A and 60B are, for example, two-dimensional CCD sensors,
It is set in advance to an image forming position by the exposure optical system 12 using the reference image forming body 10, that is, an image forming reference position on the outer peripheral surface of the reference image forming body 10. The line-shaped light emitting means 121
The line-shaped light emitting means 12 is detected while being detected by the light detecting means 60A and 60B in a state in which specific pixels at both ends of the
Adjust the position and focus of 1. Light detection means 60A, 60
B is connected to the detection circuit and display means shown in FIG. 10, and the output is displayed on the CRT.
【００７８】下端部挟持手段は露光光学系１２の集光性
ファイバーレンズアレイ１２２Ｙの下端部を挟持して
Ｘ，Ｙ，Ｚ方向に移動可能であり、前記の部材６１〜６
６とほぼ同様な構造をなす。上端部挟持手段も同様に像
露光光学系１２の集光性ファイバーレンズアレイ１２２
Ｙの上端部を挟持してＸ，Ｙ，Ｚ方向に移動可能であ
り、前記の部材７１〜７６とほぼ同様な構造をなす。こ
のような光検出手段６０Ａ，６０Ｂと露光光学系調整治
具９０Ａ，９０Ｂ，９０Ｃ，９０Ｄから成る４組のユニ
ットが固定配置されている。The lower end holding means holds the lower end of the condensing fiber lens array 122Y of the exposure optical system 12 and can move in the X, Y, and Z directions, and the members 61 to 6 described above.
It has a structure similar to that of No. 6. Similarly, the upper end clamping means also has a condensing fiber lens array 122 of the image exposure optical system 12.
It is movable in the X, Y, and Z directions while sandwiching the upper end of Y, and has a structure similar to that of the members 71 to 76. Four sets of units composed of such light detecting means 60A, 60B and exposure optical system adjusting jigs 90A, 90B, 90C, 90D are fixedly arranged.
【００７９】次に、前記光学系組立装置を用いて像露光
手段を調整する工程を説明する。Next, the step of adjusting the image exposure means using the optical system assembling apparatus will be described.
【００８０】（１）露光光学系１２Ｙ，１２Ｍ，１２
Ｃ，１２Ｋを仮挿入した光学系支持体２０を前記上基板
９３の開口９３１から挿入し、一方の回転中心穴を基板
８１の基準ピン５５Ａ及び位置決めピン５５Ｂに嵌合さ
せ、基板９１上に設置する。(1) Exposure optical system 12Y, 12M, 12
The optical system support 20 in which C and 12K are temporarily inserted is inserted from the opening 931 of the upper substrate 93, one rotation center hole is fitted to the reference pin 55A and the positioning pin 55B of the substrate 81, and the optical system support 20 is set on the substrate 91. To do.
【００８１】（２）上板９４の基準穴を光学系支持体２
０の軸部２０５に嵌合させ、さらに上板９４の両端部付
近の位置決めピン５８Ａを上基板９３上部の穴に嵌合さ
せたのち、ねじ５８Ｂにより固定する。(2) The reference hole of the upper plate 94 is used as the optical system support 2
No. 0 shaft portion 205 is fitted, and further positioning pins 58A near both ends of the upper plate 94 are fitted in holes in the upper portion of the upper substrate 93, and then fixed by screws 58B.
【００８２】（３）前記露光光学系１２Ｙは光学系調整
治具９０Ａの光検出手段６０Ａ，６０Ｂ及び露光光学系
挟持部材に正対する。同時に露光光学系１２Ｍは光学系
調整治具９０Ｂの他の光検出手段６０Ａ，６０Ｂ及び露
光光学系挟持部材に正対する。他の露光光学系１２Ｃ，
１２Ｋも同様に光学系調整治具９０Ｃ，９０Ｄの光検出
手段６０Ａ，６０Ｂ及び露光光学系挟持部材に正対す
る。(3) The exposure optical system 12Y faces the light detecting means 60A and 60B of the optical system adjusting jig 90A and the exposure optical system holding member. At the same time, the exposure optical system 12M faces the other photodetection means 60A and 60B of the optical system adjustment jig 90B and the exposure optical system holding member. Other exposure optical system 12C,
Similarly, 12K faces the photodetection means 60A and 60B of the optical system adjustment jigs 90C and 90D and the exposure optical system holding member.
【００８３】（４）前記露光光学系１２Ｙを光学系調整
治具９０ＡによりＸＹＺ方向移動させ、光検出手段６０
Ａ，６０Ｂ出力を見て調整したのち、接着剤により固定
する。露光光学系１２Ｍ，１２Ｃ，１２Ｋも同様にして
調整したのち接着剤により固定する。(4) The exposure optical system 12Y is moved in the XYZ directions by the optical system adjusting jig 90A, and the light detecting means 60 is moved.
After adjusting the output of A and 60B, adjust and fix with adhesive. The exposure optical systems 12M, 12C, and 12K are similarly adjusted and then fixed with an adhesive.
【００８４】（５）すべての露光光学系を光学系支持体
２０に装着完了後、前記上板９４を取り外し、このユニ
ット化された調整済みの像露光手段を基板９１上から取
り出す。(5) After mounting all the exposure optical systems on the optical system support 20, the upper plate 94 is removed, and the unitized adjusted image exposure means is taken out from the substrate 91.
【００８５】（６）このようにして調整して組み立てら
れた光学系支持体２０と露光光学系１２Ｙ〜１２Ｋから
成るユニットは、図２に示すように、光学系支持体２０
の端部に設けた基準穴２０４に前記蓋部材４４に固定さ
れたガイドピン４３を嵌合させることにより、位置決め
され、固定ねじ４５により一体に固定される。(6) As shown in FIG. 2, the unit composed of the optical system support 20 and the exposure optical systems 12Y to 12K thus adjusted and assembled has the optical system support 20.
The guide pin 43 fixed to the lid member 44 is fitted into the reference hole 204 provided at the end of the position, and is positioned and fixed integrally by the fixing screw 45.
【００８６】（７）この蓋部材４４に一体化された露光
光学系１２Ｙ〜１２Ｋを有する光学系支持体２０を保持
して、画像形成装置本体の基板４０とカートリッジ３０
の壁間に支持された感光体ドラム１０の内部に挿入し、
光学系支持体２０の軸部２０３をカートリッジ３０の基
準穴３０Ｂに嵌合させ、蓋部材４４を玉軸受４１のアウ
ターレースに嵌合させて位置決めし、固定ねじ４５によ
り固定する。このようにして露光光学系１２Ｙ〜１２Ｋ
は、高精度を保持して確実かつ容易に感光体ドラム１０
内に支持される。(7) While holding the optical system support 20 having the exposure optical systems 12Y to 12K integrated with the lid member 44, the substrate 40 of the image forming apparatus main body and the cartridge 30.
Inserted inside the photoconductor drum 10 supported between the walls of
The shaft portion 203 of the optical system support 20 is fitted in the reference hole 30B of the cartridge 30, the lid member 44 is fitted in the outer race of the ball bearing 41, positioned, and fixed by the fixing screw 45. In this way, the exposure optical systems 12Y to 12K
Holds the photoconductor drum 10 reliably and easily with high accuracy.
Supported in.
【００８７】[0087]
【発明の効果】本発明によるときは、光学系内包型露光
手段を有する画像形成装置において、ライン状発光手段
を有する露光光学系の光学系支持体への取り付け位置精
度が向上する。また取り付け調整作業時間の短縮と作業
の容易化が達成される。According to the present invention, in the image forming apparatus having the optical system-containing exposure means, the accuracy of the mounting position of the exposure optical system having the linear light emitting means on the optical system support is improved. Further, the installation adjustment work time is shortened and the work is facilitated.
【図１】本発明の適用されるカラー画像形成装置の一例
を示す断面図。FIG. 1 is a sectional view showing an example of a color image forming apparatus to which the present invention is applied.
【図２】感光体ドラムと露光光学系を示す断面図。FIG. 2 is a sectional view showing a photosensitive drum and an exposure optical system.
【図３】感光体ドラム周辺の像形成手段を示す断面図。FIG. 3 is a sectional view showing an image forming unit around a photosensitive drum.
【図４】本発明の実施例１による露光光学系と光学系組
立装置の斜視図。FIG. 4 is a perspective view of an exposure optical system and an optical system assembling apparatus according to the first embodiment of the present invention.
【図５】上記露光光学系と光学系組立装置の正面断面
図。FIG. 5 is a front sectional view of the exposure optical system and the optical system assembling apparatus.
【図６】上記露光光学系と光学系組立装置の平面図。FIG. 6 is a plan view of the exposure optical system and the optical system assembling apparatus.
【図７】図５におけるＡ−Ａ矢視図。7 is a view on arrow AA in FIG.
【図８】図５におけるＢ矢視図。FIG. 8 is a view on arrow B in FIG.
【図９】図７における光検出手段の平面図（Ａ）、像露
光光学系の下端部挟持手段の平面図（Ｂ）および上端部
挟持手段の平面図（Ｃ）。9A and 9B are a plan view of the light detecting means in FIG. 7, a plan view of a lower end holding means of the image exposure optical system, and a plan view of an upper end holding means of FIG.
【図１０】露光光学系の調整制御を示すブロック図。FIG. 10 is a block diagram showing adjustment control of an exposure optical system.
【図１１】本発明の実施例２による露光光学系と光学系
組立装置の正面断面図。FIG. 11 is a front sectional view of an exposure optical system and an optical system assembling apparatus according to a second embodiment of the present invention.
【図１２】図１１におけるＡ−Ａ矢視図。FIG. 12 is a view on arrow AA in FIG. 11.
【図１３】図１１におけるＢ矢視図。13 is a view on arrow B in FIG.
【図１４】本発明の実施例３による露光光学系と光学系
組立装置の正面断面図。FIG. 14 is a front sectional view of an exposure optical system and an optical system assembling apparatus according to a third embodiment of the present invention.
【図１５】図１４におけるＡ−Ａ矢視図。FIG. 15 is a view on arrow AA in FIG.
【図１６】図１４におけるＢ矢視図。16 is a view on arrow B in FIG.
１０ 感光体ドラム（像形成体）
１２，１２Ｙ，１２Ｍ，１２Ｃ，１２Ｋ ライン状露光
光学系（露光光学系）
121，121Ｙ，121Ｍ，121Ｃ，121Ｋ ライン状発光手段
（ＬＥＤアレイ）
122，122Ｙ，122Ｍ，122Ｃ，122Ｋ 集光性ファイバー
レンズアレイ
２０ 光学系支持体（支持部材）
２０３ 軸部
２０４ 基準穴
２０５ 凹部
３０ カートリッジ
４０ 基板
４４ 蓋部材
５０，８０，９０ 光学系組立装置
９０Ａ，９０Ｂ，９０Ｃ，９０Ｄ 光学系調整治具
５１，８１，９１ 基板
５２ 回転テーブル
５３，８９Ａ 軸受
５５Ａ，５５Ｂ，５９ 基準ピン
５６，５７，８２Ａ〜８２Ｄ，９２Ａ〜９２Ｄ 支柱
５８，８４ 上板
６０Ａ，６０Ｂ 光検出手段（二次元ＣＣＤセンサ）
６１，７１ 移動台
６２，７２ 挟持部材
６３，７３ 固定挟持部
６５，７５ 可動挟持部材
８３ 上基板
８５，８７ レール支持具
８６ 下レール
８８ 上レール
８９ 移動機枠10 Photosensitive drum (image forming body) 12, 12Y, 12M, 12C, 12K Linear exposure optical system (exposure optical system) 121, 121Y, 121M, 121C, 121K Linear light emitting means (LED array) 122, 122Y, 122M , 122C, 122K Condensing fiber lens array 20 Optical system support (support member) 203 Shaft portion 204 Reference hole 205 Recess 30 Cartridge 40 Substrate 44 Lid member 50, 80, 90 Optical system assembling device 90A, 90B, 90C, 90D Optical system adjustment jigs 51, 81, 91 Substrate 52 Rotation table 53, 89A Bearings 55A, 55B, 59 Reference pins 56, 57, 82A to 82D, 92A to 92D Supports 58, 84 Upper plates 60A, 60B Light detection means (two Dimensional CCD sensor) 61,71 Moving table 62,72 Clamping member 63,73 Fixed clamping part 65,75 Movable clamping member 83 Upper base 85,87 railing supporter 86 bottom rail 88 on the rail 89 moving machine frame
フロントページの続き (56)参考文献 特開 平５−307307（ＪＰ，Ａ) 特開 平４−246668（ＪＰ，Ａ) 実開 昭63−33160（ＪＰ，Ｕ) 実開 昭54−158519（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) G03G 15/01 - 15/01 117 B41J 2/447 G03G 15/04 - 15/04 120 Continuation of the front page (56) References JP-A-5-307307 (JP, A) JP-A-4-246668 (JP, A) Actually opened 63-33160 (JP, U) Actually opened 54-158519 (JP , U) (58) Fields surveyed (Int.Cl. 7 , DB name) G03G 15/01-15/01 117 B41J 2/447 G03G 15/04-15/04 120
Claims (4)
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像形成体上に
トナー像を重ね合わせて形成したのち、該トナー像を転
写材上に一括して転写する画像形成装置の光学系組立装
置において、 回転可能な前記像形成体内方であって、前記像形成体の
回転軸と平行して配列された複数のライン状露光光学系
と、該複数のライン状露光光学系を保持するとともに画
像形成装置本体内の像形成体支持架台に固設される光学
系支持体とから成る像露光手段は、前記光学系支持体の
外方であって前記ライン状露光光学系の結像位置に固定
配置した光検出手段と、前記ライン状露光光学系を挟持
して移動可能な挟持手段とにより、前記ライン状露光光
学系の取り付け位置が調整されたのち光学系支持体に固
定されるようにしたことを特徴とする画像形成装置の光
学系組立装置。1. A plurality of sets of charging means are provided around the image forming body,
An image exposing unit and a developing unit are provided, and charging, image exposing and developing are repeated during one rotation of the image forming body to form a toner image on the image forming body in a superimposed manner, and then the toner image is transferred. Optical system assembly equipment for image forming device that transfers all at once on top
In location, there is better rotatable said imaging body and a plurality of linear exposure optical system arranged in parallel to the rotation axis of said image forming body, holds the plurality of linear exposure optical system The image exposure means, which comprises an optical system support fixed to a support for the image forming body in the main body of the image forming apparatus, is provided outside the optical system support at an image forming position of the linear exposure optical system. light detecting means for fixed placement, more and movable clamping means to clamp said linear exposure optical system, so that the mounting position of the line-shaped exposure optical system is fixed to the optical system supporting body after being adjusted An optical system assembling apparatus for an image forming apparatus, characterized in that
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像形成体上に
トナー像を重ね合わせて形成したのち、該トナー像を転
写材上に一括して転写する画像形成装置の光学系組立装
置において、 回転可能な前記像形成体内方であって、前記像形成体の
回転軸と平行して配列された複数のライン状露光光学系
と、該複数のライン状露光光学系を保持するとともに画
像形成装置本体内の像形成体支持架台に固設される光学
系支持体とから成る像露光手段は、該光学系支持体の外
方の移動手段に取り付けられ移動可能に配置した光検出
手段と、前記ライン状露光光学系を挟持して固定配置さ
れた固定台とにより、前記ライン状露光光学系の取り付
け位置が調整されたのち光学系支持体に固定されるよう
にしたことを特徴とする画像形成装置の光学系組立装
置。2. A plurality of sets of charging means are provided around the image forming body,
An image exposing unit and a developing unit are provided, and charging, image exposing and developing are repeated during one rotation of the image forming body to form a toner image on the image forming body in a superimposed manner, and then the toner image is transferred. Optical system assembly equipment for image forming device that transfers all at once on top
In location, there is better rotatable said imaging body and a plurality of linear exposure optical system arranged in parallel to the rotation axis of said image forming body, holds the plurality of linear exposure optical system The image exposure means, which comprises an optical system support fixedly mounted on the image forming body support frame in the main body of the image forming apparatus, is a light detecting means which is attached to a moving means outside the optical system support and is movably arranged. When, characterized in that said sandwich the linear exposure optical system more fixedly positioned and fixed base, the mounting position of the line-shaped exposure optical system has to be fixed to the optical system supporting body after being adjusted An optical system assembling device for an image forming apparatus.
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像形成体上に
トナー像を重ね合わせて形成したのち、該トナー像を転
写材上に一括して転写する画像形成装置の光学系組立装
置において、 回転可能な前記像形成体内方であって、前記像形成体の
回転軸と平行して配列された複数のライン状露光光学系
と、該複数のライン状露光光学系を保持するとともに画
像形成装置本体内の像形成体支持架台に固設される光学
系支持体とから成る像露光手段は、前記光学系支持体を
所定位置に固定保持する固定台と、該光学系支持体の外
方の所定位置に固定配置した複数の光検出手段とによ
り、前記ライン状露光光学系の取り付け位置が調整され
たのち光学系支持体に固定されるようにしたことを特徴
とする画像形成装置の光学系組立装置。3. A plurality of sets of charging means are provided around the image forming body,
An image exposing unit and a developing unit are provided, and charging, image exposing and developing are repeated during one rotation of the image forming body to form a toner image on the image forming body in a superimposed manner, and then the toner image is transferred. Optical system assembly equipment for image forming device that transfers all at once on top
In location, there is better rotatable said imaging body and a plurality of linear exposure optical system arranged in parallel to the rotation axis of said image forming body, holds the plurality of linear exposure optical system An image exposure means comprising an optical system support fixedly mounted on an image forming body support frame in the main body of the image forming apparatus includes a fixed base for fixing and holding the optical system support at a predetermined position, and an optical system support of the optical system support. by the plurality of light detection means which is fixedly disposed at a predetermined position of the outer <br/> is, that the mounting position of the line-shaped exposure optical system has to be fixed to the optical system supporting body after being adjusted An optical system assembling device for a characteristic image forming apparatus.
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像形成体上に
トナー像を重ね合わせて形成したのち、該トナー像を転
写材上に一括して転写する画像形成装置の光学系組立方
法において、回転可能な前記像形成体内方であって、前
記像形成体の回転軸と平行して配列された複数のライン
状露光光学系を保持する光学系支持体を固設し、前記光
学系支持体の外方であって前記ライン状露光光学系の結
像位置に固定配置した光検出手段により、点灯している
ライン状露光光学系の特定の画素の位置と結像状態とを
検出し、前記ライン状露光光学系を挟持して移動可能な
挟持手段により、前記ライン状露光光学系を移動させ、
前記ライン状露光光学系の所定の位置を設定することに
より、前記ライン状露光光学系の取り付け位置が調整さ
れたのち前記光学系支持体に固定されるようにしたこと
を特徴とする画像形成装置の光学系組立方法。 4. A plurality of sets of charging means are provided around the image forming body,
An image exposing unit and a developing unit are provided, and the image forming member is used once.
Repeated charging, image exposure and development during transfer onto the image forming body
After the toner images are overlaid and formed, the toner images are transferred.
How to assemble the optical system of an image forming device that transfers images onto a copying material all at once
In the method, inside the rotatable imaging body,
A plurality of lines arranged parallel to the rotation axis of the image forming body
The optical system support that holds the optical exposure
Outside the academic system support, the connection of the linear exposure optical system
The light is turned on by the photodetector fixedly arranged at the image position.
The position of a specific pixel and the image formation state of the linear exposure optical system
Detectable and movable by sandwiching the linear exposure optical system
By the sandwiching means, the linear exposure optical system is moved,
To set a predetermined position of the linear exposure optical system
Adjust the position of the linear exposure optical system.
And then fixed to the optical system support.
And an optical system assembling method for an image forming apparatus.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08262195A JP3482549B2 (en) | 1995-04-07 | 1995-04-07 | Optical system assembly equipment for image forming equipment |
| US08/625,285 US5754210A (en) | 1995-04-05 | 1996-04-01 | Optical system assembling device for an image forming apparatus |
| EP96105251A EP0738935B1 (en) | 1995-04-05 | 1996-04-02 | Optical system assembling method in an image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08262195A JP3482549B2 (en) | 1995-04-07 | 1995-04-07 | Optical system assembly equipment for image forming equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08278677A JPH08278677A (en) | 1996-10-22 |
| JP3482549B2 true JP3482549B2 (en) | 2003-12-22 |
Family
ID=13779535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08262195A Expired - Fee Related JP3482549B2 (en) | 1995-04-05 | 1995-04-07 | Optical system assembly equipment for image forming equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3482549B2 (en) |
-
1995
- 1995-04-07 JP JP08262195A patent/JP3482549B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08278677A (en) | 1996-10-22 |
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