JPS5811982A - Image recording device - Google Patents
Image recording deviceInfo
- Publication number
- JPS5811982A JPS5811982A JP10927381A JP10927381A JPS5811982A JP S5811982 A JPS5811982 A JP S5811982A JP 10927381 A JP10927381 A JP 10927381A JP 10927381 A JP10927381 A JP 10927381A JP S5811982 A JPS5811982 A JP S5811982A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- photosensitive element
- recording device
- variation
- contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/75—Details relating to xerographic drum, band or plate, e.g. replacing, testing
- G03G15/754—Details relating to xerographic drum, band or plate, e.g. replacing, testing relating to band, e.g. tensioning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
- G01D15/14—Optical recording elements; Recording elements using X-or nuclear radiation
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/32—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head
- G03G15/326—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head by application of light, e.g. using a LED array
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
- G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
- G06K15/1295—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers using a particular photoreceptive medium
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Combination Of More Than One Step In Electrophotography (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
Description
【発明の詳細な説明】
この発明はエンドレスベルト状感光体を有する画像記録
装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image recording apparatus having an endless belt-like photoreceptor.
電子写真方式の画像記録装置としては、ドラム状感光体
の周面に沿って帯電器、スリット状露光手段の入射位置
、現像器を順次配設し露光手段からの走査ビームの光強
度に応じた画像を記録する装置が多く用いられている。As an electrophotographic image recording device, a charger, an incident position of a slit-shaped exposure means, and a developing device are arranged in sequence along the circumference of a drum-shaped photoreceptor, and the image recording device is arranged in order according to the light intensity of the scanning beam from the exposure means. Many devices are used to record images.
しかし、ドラム状感光体の周囲に全作像手段を配列した
上記の形式の記録装置は、感光体の内部空間スペースが
無駄になり、結果として装置全体が大型化する。この欠
点を解決するだめにドラムの直径を小さくすると、(イ
)各ユニットの空間スペース、配置が制限される。However, in the above-mentioned type of recording apparatus in which all the image forming means are arranged around a drum-shaped photoreceptor, the internal space of the photoreceptor is wasted, resulting in an increase in the size of the entire apparatus. If the diameter of the drum is reduced to overcome this drawback, (a) the space and arrangement of each unit will be restricted;
(ロ)スリット状露光手段の場合結像面の曲率半径が小
さい曲面となるため結像性能が低下するのみならず、走
査ビームの走査線がドラムの軸と平行でない場合はその
不平行度が拡大され、走査ビーム径も位置により変化す
る。(b) In the case of a slit-shaped exposure means, the imaging surface is a curved surface with a small radius of curvature, which not only deteriorates the imaging performance, but also increases the degree of non-parallelism if the scanning line of the scanning beam is not parallel to the drum axis. The scanning beam diameter also changes depending on the position.
(ハ)帯電器がスコロトロン方式の場合は特にグリッド
ワイヤの配置を感光体の曲率面に合せる必要があり複雑
化する。(c) When the charger is of the scorotron type, the arrangement of the grid wires must be matched to the curvature surface of the photoreceptor, which complicates the process.
等の欠点を生ずる。This results in disadvantages such as:
そこで感光体としてエンドレスベルト状感光体を用い、
これを1つの駆動ローラと1つ以上の従動ローラとによ
シ支持し、これらのローラをエンドレスベルト状感光体
の全周に比して小さい円周のローラで構成することによ
り装置内の感光体の占める空間スペースを小さクシ、結
果として装置の小型化を達成できる。しかしこのような
エンドレスベルト状感光体を用いた記録装置では感光体
ベルトがローラに接触する部分では感光体外周面の曲率
半径が小さくなり、又ローラとローラとの間では場所に
よっては感光体ベルトにたるみ、波釘等の現象を生ずる
ので露光位置、帯電器及び現像器の設置位置の設定に十
分配慮する必要がある。Therefore, we used an endless belt-like photoreceptor as the photoreceptor.
This is supported by one driving roller and one or more driven rollers, and by configuring these rollers with rollers whose circumference is smaller than the entire circumference of the endless belt-like photoreceptor, the photoreceptor inside the device is By reducing the space occupied by the body, the device can be downsized as a result. However, in a recording device using such an endless belt-like photoreceptor, the radius of curvature of the outer circumferential surface of the photoreceptor is small at the portion where the photoreceptor belt contacts the roller, and the radius of curvature of the outer circumferential surface of the photoreceptor is small depending on the location between the rollers. Phenomena such as sagging and wave pegs occur, so it is necessary to take sufficient consideration in setting the exposure position and the installation position of the charger and developer.
すなわち、露光位置は感光面の速度変動が少く、しかも
曲率半径の大きい位置に、又現像器設置位置は現像キャ
ップの変動が少なく々るよう々位置に、又帯電器設置位
置はその形状が複雑にならず、感光体面の位置の変動が
少い位置に設定することが必要である。In other words, the exposure position should be at a position where the velocity fluctuation of the photosensitive surface is small and the radius of curvature is large, the developing device should be installed at a position where there is little variation in the developing cap, and the charger should be installed at a position whose shape is complex. It is necessary to set the position at a position where the position of the photoreceptor surface is less likely to fluctuate.
この発明は、画像記録装置の感光体としてエンドレスベ
ルト状の感光体を使用する場合の上述の要求に適った露
光位置、帯電器及び現像器の設置位置を有する画像記録
装置を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide an image recording device having an exposure position, a charging device, and a developing device installation position that meet the above-mentioned requirements when an endless belt-like photoconductor is used as the photoconductor of the image recording device. shall be.
以下、本発明をその実施例を示す図面に基すいて詳細に
説明する。Hereinafter, the present invention will be explained in detail based on drawings showing embodiments thereof.
第1図は本発明の画像記録装置に使用するエンドレスベ
ルト状感光体の支持状態を図式的に示しだものである。FIG. 1 schematically shows how an endless belt-like photoreceptor used in the image recording apparatus of the present invention is supported.
(簡単のため1つの駆動ローラと1つの従動ローラによ
り支持された例を示す。)エンドレスベルト状感光体1
はベースフィルム上に無機または有機光導電体を設けた
もので可撓性を有している。このような感光体lを図に
示す如く駆動ローラ2と従動ローラ3に架は渡して矢印
方向に、駆動すると、感光体1は平面性、速度特性等の
違いにより、4つの領域に分けられる。この4つの領域
のうち、感光面が他の構成ユニットとの位置変動の少な
い領域は張り側平面域@と、駆動側曲面域のである。又
、感光体の送り速度の安定している領域は駆動側曲面域
の及びその近くの張り側平面域@となる。ゆるみ側平面
域■は、感光面の波うち等の現象によ多位置、送シ速度
の変動が生じ易く、従動側曲面域@は送り速度の変動が
生じ易い。(For simplicity, an example supported by one driving roller and one driven roller is shown.) Endless belt-shaped photoreceptor 1
is a flexible film in which an inorganic or organic photoconductor is provided on a base film. When such a photoreceptor 1 is driven in the direction of the arrow with the driving roller 2 and the driven roller 3 placed on a rack as shown in the figure, the photoreceptor 1 is divided into four regions depending on flatness, speed characteristics, etc. . Of these four areas, the areas where the photosensitive surface has little positional variation with respect to other constituent units are the flat side area on the tension side and the curved area on the drive side. Further, the region where the photoreceptor feeding speed is stable is the curved surface region on the drive side and the flat surface region on the tension side near the drive side curved surface region. In the flat area (2) on the loose side, fluctuations in position and feed speed are likely to occur due to phenomena such as waviness of the photosensitive surface, and in the curved surface area (@) on the driven side, fluctuations in feed speed are likely to occur.
上述のエンドレスベルト状感光体1の各領域の特性を考
慮すると、画像形成に重要な帯電、露光、現像の工程は
、エンドレスベルト状感光体lが張シ側平面域@から、
駆動側曲面域のに移動する間に行なうのが望ましいこと
が判る。Considering the characteristics of each region of the endless belt-like photoreceptor 1 described above, the steps of charging, exposure, and development that are important for image formation are as follows:
It can be seen that it is desirable to perform this while moving to the drive side curved area.
さらに具体的に述べれば、露光位置としては、感光面の
変動が少なく、シかも速度変動が少ない平面域として感
光体lが駆動ローラ2に接する直前の平面域@を選び、
現像器は現像ギャップの変動及び速度変動の最も少ない
感光体lと駆動ローラ2とが接している曲面域のに配置
し、又帯電器は感光体の平面域でなおかっ、感光体面の
変動が少ない張り側@に設けることが前述の目的に適っ
ている。More specifically, as the exposure position, a flat area immediately before the photoreceptor 1 contacts the drive roller 2 is selected as a flat area where there are few fluctuations in the photosensitive surface and little speed fluctuation.
The developing device is placed in a curved area where the photoconductor l and drive roller 2 are in contact, where fluctuations in the development gap and speed are minimal, and the charger is placed in a flat area of the photoconductor, so that fluctuations in the photoconductor surface are minimized. Providing it on the side with less tension is suitable for the above-mentioned purpose.
第2図は、原稿4を移動し、この原稿像をインミラーレ
ンズ5とミラー6を用いた結像光学系7により、駆動ロ
ーラ2により駆動されるエンドレスベルト状感光体lの
面に結像する方式の複写装置に上述の考方にもとすいて
入射位置8、帯電器9及び現像器10を配置した実施例
を示す。帯電器9はエンドレスベルト状感光体lの張シ
側平面域に、現像器lOは駆動側曲面域のはゾ中夫に、
そして露光位置8は平面から曲面に変化する直前の平面
域に設けられている。In FIG. 2, an original 4 is moved, and an image of this original is formed by an imaging optical system 7 using an in-mirror lens 5 and a mirror 6 on the surface of an endless belt-shaped photoreceptor l driven by a drive roller 2. An embodiment will be described in which an incident position 8, a charger 9, and a developer 10 are arranged in a copying apparatus of the type described above. The charger 9 is located in the flat area on the stretch side of the endless belt-like photoreceptor l, the developer lO is located in the curved area on the drive side,
The exposure position 8 is provided in a flat area immediately before the surface changes from a flat surface to a curved surface.
第3図に示す他の実施例では、露光用結像手段として集
束性光伝送体アレイ5′を使用した以外は第2図に示し
た実施例と同じであり、同様の作用効果が期待できる。The other embodiment shown in FIG. 3 is the same as the embodiment shown in FIG. 2 except that a convergent light transmitting array 5' is used as the imaging means for exposure, and similar effects can be expected. .
第4図に示す更に別の実施例では、感光体露光手段とし
て光源にHe−Ne等のガスレーザーあるいは半導体レ
ーザー等を用い、光源ビームを変調、偏向して感光体上
に微少なビームスポットをその光強度を変化させながら
走査することにより露光を行なう光ビーム走査手段11
を用いた以外は、第2図及び第3図に示しだ実施例と同
様であり、したがって同様の作用、効果が得られる。In yet another embodiment shown in FIG. 4, a gas laser such as He-Ne or a semiconductor laser is used as a light source as a photoreceptor exposure means, and the light source beam is modulated and deflected to form a minute beam spot on the photoreceptor. Light beam scanning means 11 that performs exposure by scanning while changing the light intensity
This embodiment is the same as the embodiment shown in FIGS. 2 and 3 except that .
上記の各実施例では、エンドレスベルト状感光体lは1
つの駆動ロー22と1つの従動ローラ3とに架は渡され
た例について説明したが、第5図に示す如く、従動ロー
ラ3を複数にし、又エンドレスベルト状感光体lの平面
域を必要に応じて水平から傾斜させた場合にも本発明の
上述の配置関係を適用することによシ、第2図乃至第4
図に示(−1
した実施例と同様の作用効果が得られる。In each of the above embodiments, the endless belt-like photoreceptor l is 1
Although we have described an example in which a rack is provided between two driving rows 22 and one driven roller 3, as shown in FIG. By applying the above-mentioned arrangement relationship of the present invention even when tilted from the horizontal, it is possible to
The same effects as the embodiment shown in the figure (-1) can be obtained.
以上の如く、本発明によれば感光体をエンドレスベルト
状にして装置の小型化、簡素化をはかった場合にも走査
ビームの感光体の幅方向に対する平行性の調整精一度が
楽になり、感光体と現像部とのギャップ維持、帯電器の
形状の簡素化が達成でき、複写複写品質の向上にも効果
が得られる。As described above, according to the present invention, even when the photoreceptor is shaped like an endless belt to downsize and simplify the device, it is easy to precisely adjust the parallelism of the scanning beam to the width direction of the photoreceptor, and the photoreceptor The gap between the body and the developing section can be maintained, the shape of the charger can be simplified, and the quality of copies can be improved.
第1図はエンドレスベルト状感光体の支持状態とその各
部の性質を説明するだめの図式図、第2図は本発明の実
施例を示す断面図、第3図は本発明の他の実施例を示す
断面図、第4図は本発明の更に別の実施例を示す断面図
、第5図は更に他の実施例を示す断面図である。
l・・・エンドレスベルト状感光体 2・・・駆動ロー
ラ3・・・従動ローラ 8・・・入射位置9・・・帯
電器 10・・・現像器11・・・光ビーム走査
手段Fig. 1 is a schematic diagram for explaining the supporting state of an endless belt-like photoreceptor and the properties of each part thereof, Fig. 2 is a sectional view showing an embodiment of the present invention, and Fig. 3 is another embodiment of the present invention. FIG. 4 is a cross-sectional view showing still another embodiment of the present invention, and FIG. 5 is a cross-sectional view showing still another embodiment. l...Endless belt-shaped photoreceptor 2...Drive roller 3...Followed roller 8...Incidence position 9...Charger 10...Developer 11...Light beam scanning means
Claims (1)
り支持されたエンドレスベルト状感光体と、帯電手段と
、スリット状露光手段と、現像手段とを有する画像記録
装置において、上記露光手段の入射位置を感光体が駆動
ローラと接し始め、平面から曲面に変化する変化点近く
の平面領域に設けたことを特徴とする記録装置。 (ハ 上記の帯電手段を駆動ローラと感光体とが接して
いない感光体ベルトの張り側の平面領域に設けたことを
特徴とする特許請求の範囲第1項に記載の記録装置。 (3)上記の現像手段を駆動ローラと感光体とが接して
いる曲面領域に設けたことを特徴とする特許請求の範囲
第1項又は第2項に記載の記録装置。 (4)上記のスリット状露光手段としてレーザー光等の
光ビーム走査手段を用いたことを特徴とする特許請求の
範囲第1項乃至第3項のいずれか1項に記載の記録装置
。[Scope of Claims] (1) An image recording device having an endless belt-like photoreceptor supported by one driving roller and one or more driven rollers, charging means, slit-like exposing means, and developing means. A recording apparatus characterized in that the incident position of the exposure means is provided in a flat area near a point where the photoreceptor begins to come into contact with the drive roller and changes from a flat surface to a curved surface. (c) The recording device according to claim 1, wherein the charging means is provided in a flat area on the tension side of the photoreceptor belt where the drive roller and the photoreceptor are not in contact. (3) The recording device according to claim 1 or 2, characterized in that the developing means is provided in a curved area where the drive roller and the photoreceptor are in contact. (4) The slit-like exposure described above 4. The recording apparatus according to claim 1, wherein a light beam scanning means such as a laser beam is used as the means.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10927381A JPS5811982A (en) | 1981-07-15 | 1981-07-15 | Image recording device |
US06/398,630 US4494130A (en) | 1981-07-15 | 1982-07-15 | Laser printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10927381A JPS5811982A (en) | 1981-07-15 | 1981-07-15 | Image recording device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5811982A true JPS5811982A (en) | 1983-01-22 |
JPH0215075B2 JPH0215075B2 (en) | 1990-04-10 |
Family
ID=14505986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10927381A Granted JPS5811982A (en) | 1981-07-15 | 1981-07-15 | Image recording device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5811982A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61249354A (en) * | 1985-04-30 | 1986-11-06 | Nisshin Flour Milling Co Ltd | Pet food |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53124431A (en) * | 1976-06-30 | 1978-10-30 | Ricoh Co Ltd | Electrophotographic copier |
JPS5469442A (en) * | 1977-11-14 | 1979-06-04 | Canon Inc | Copying machine |
JPS5499642A (en) * | 1978-01-24 | 1979-08-06 | Nec Corp | Electrophotographic apparatus |
JPS5552082A (en) * | 1978-09-27 | 1980-04-16 | Xerox Corp | Belt assembly body |
JPS5611474A (en) * | 1979-07-11 | 1981-02-04 | Canon Inc | Copying machine |
JPS5672412A (en) * | 1979-11-19 | 1981-06-16 | Matsushita Electric Ind Co Ltd | Optical recorder |
JPS5679575A (en) * | 1979-12-03 | 1981-06-30 | Fuji Photo Film Co Ltd | Picture recording and playback method |
-
1981
- 1981-07-15 JP JP10927381A patent/JPS5811982A/en active Granted
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53124431A (en) * | 1976-06-30 | 1978-10-30 | Ricoh Co Ltd | Electrophotographic copier |
JPS5469442A (en) * | 1977-11-14 | 1979-06-04 | Canon Inc | Copying machine |
JPS5499642A (en) * | 1978-01-24 | 1979-08-06 | Nec Corp | Electrophotographic apparatus |
JPS5552082A (en) * | 1978-09-27 | 1980-04-16 | Xerox Corp | Belt assembly body |
JPS5611474A (en) * | 1979-07-11 | 1981-02-04 | Canon Inc | Copying machine |
JPS5672412A (en) * | 1979-11-19 | 1981-06-16 | Matsushita Electric Ind Co Ltd | Optical recorder |
JPS5679575A (en) * | 1979-12-03 | 1981-06-30 | Fuji Photo Film Co Ltd | Picture recording and playback method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61249354A (en) * | 1985-04-30 | 1986-11-06 | Nisshin Flour Milling Co Ltd | Pet food |
JPH0474987B2 (en) * | 1985-04-30 | 1992-11-27 |
Also Published As
Publication number | Publication date |
---|---|
JPH0215075B2 (en) | 1990-04-10 |
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