JPS63172288A - Image recorder - Google Patents
Image recorderInfo
- Publication number
- JPS63172288A JPS63172288A JP448587A JP448587A JPS63172288A JP S63172288 A JPS63172288 A JP S63172288A JP 448587 A JP448587 A JP 448587A JP 448587 A JP448587 A JP 448587A JP S63172288 A JPS63172288 A JP S63172288A
- Authority
- JP
- Japan
- Prior art keywords
- light
- control element
- light control
- element array
- image
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000002344 surface layer Substances 0.000 abstract description 15
- 238000003825 pressing Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 239000004809 Teflon Substances 0.000 abstract description 2
- 229920006362 Teflon® Polymers 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 229920000642 polymer Polymers 0.000 abstract description 2
- 125000001153 fluoro group Chemical group F* 0.000 abstract 1
- 108091008695 photoreceptors Proteins 0.000 description 9
- 238000003384 imaging method Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
Landscapes
- Dot-Matrix Printers And Others (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は電子写真方式を用いたプリンタ等の画像記録装
置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an image recording apparatus such as a printer using an electrophotographic method.
（従来の技術）
従来、この種の装置としては、次に示すようなものがあ
る。すなわち、ＬＥＤアレイや液晶シャッタアレイ等の
光制御素子アレイからの画像光を、セルフォックレンズ
（日本板硝子株式会社、商品名）を介して感光体上に露
光して静電潜像を形成し、画像の記録を行なうものがあ
る。(Prior Art) Conventionally, there are the following devices as this type of device. That is, an electrostatic latent image is formed by exposing image light from a light control element array such as an LED array or a liquid crystal shutter array onto a photoreceptor through a SELFOC lens (trade name, manufactured by Nippon Sheet Glass Co., Ltd.). There are some that record images.
（発明が解決しようとする問題点）
しかし、係る従来技術の場合には、次のような問題点を
有している。すなわち、上記セルフォックレンズは光の
損失量が多いため、感光体上に十分な光量の露光を行な
い、高品質の画像記録を行なうには、ＬＥＤアレイや液
晶シャッタアレイの光源に光量の大きいものを用いる必
要がある。そのため、装置の消費電力が大きくなるとと
もにＬＥＤアレイ等の寿命が短くなるという問題点があ
った。(Problems to be Solved by the Invention) However, this prior art has the following problems. In other words, since the SELFOC lens described above has a large amount of light loss, in order to expose the photoreceptor with a sufficient amount of light and record a high-quality image, the light source of the LED array or liquid crystal shutter array must have a large amount of light. It is necessary to use Therefore, there were problems in that the power consumption of the device increased and the life of the LED array etc. was shortened.
そこで、上記の問題点を解決し得るものとしては、結像
レンズを用いず、ＯＦＴを用いる装置では、該ＯＦＴの
表面を感光体に近接させて配置するようにしたものがあ
る。Therefore, as a device that can solve the above problem, there is an apparatus that uses an OFT without using an imaging lens, and the surface of the OFT is arranged close to the photoreceptor.
しかし、この場合には、ＯＦＴが感光体表面からはなれ
ているため、解像力が低下したり、該ＯＦＴの表面にト
ナー等が付着して汚れ、記録画像にムラが生じるという
問題点がある。However, in this case, since the OFT is separated from the surface of the photoreceptor, there are problems in that resolution is reduced, toner or the like adheres to the surface of the OFT, causing stains and unevenness in recorded images.
本発明は、上記従来技術の問題点を解決するためになさ
れたもので、その目的とするところは、結像レンズを使
用せず装置の小型化および低コスト化が可能であり、光
制御素子アレイの発光量を小さくして消費電力を少なく
することができるとともに長寿命化が可能であり、しか
も光制御素子アレイの汚れを防止可能な画像記録装置を
提供することにある。The present invention was made in order to solve the problems of the prior art described above, and its purpose is to make it possible to reduce the size and cost of the device without using an imaging lens, and to make it possible to reduce the size and cost of the device without using an imaging lens. It is an object of the present invention to provide an image recording device that can reduce the power consumption by reducing the amount of light emitted from the array, has a longer service life, and can prevent the light control element array from becoming dirty.
（問題点を解決するための手段）
本発明は、上記の目的を達成するために、微細な領域の
発光または微細な領域の光の通過を制御可能な光制御素
子アレイを用いて像担持体上に画像を露光して記録する
画像記録装置において、上記光制御素子アレイの表面を
透光性被膜で覆い、該透光性被膜を介して光制御素子ア
レイを像担持体上に圧接するように構成されている。(Means for Solving the Problems) In order to achieve the above object, the present invention uses a light control element array that can control light emission in a minute area or passage of light in a minute area to create an image carrier. In an image recording apparatus that records an image by exposing it to light, the surface of the light control element array is covered with a transparent coating, and the light control element array is pressed onto the image carrier through the transparent coating. It is composed of
（作 用）
本発明においては、光制御素子アレイを像担持体の表面
に圧接することにより、結像レンズを用いる必要がなく
、しかも少ない発光量で画像露光を行なえるとともに、
光制御素子アレイは像担持体の表面に圧接しているため
、該アレイの表面ば像担持体によって摺擦され、トナー
等が付着することはない。(Function) In the present invention, by bringing the light control element array into pressure contact with the surface of the image carrier, there is no need to use an imaging lens, and image exposure can be performed with a small amount of light emission.
Since the light control element array is in pressure contact with the surface of the image carrier, the surface of the array is rubbed by the image carrier, and toner etc. do not adhere to the surface of the array.
（実 施 例） 以下に本発明を図示の実施例に基づいて説明する。(Example) The present invention will be explained below based on illustrated embodiments.
第２図は本発明に係る画像記録装置の一実施例を示すも
のである。図において、１は像担持体としての感光ドラ
ムであり、この感光ドラム１は一次帯電器２によって一
様に帯電された後、後に詳述する光制御素子アレイ１０
および通常の原稿の画像をシャッタ一部材３０を介して
露光する画像露光手段３の少なくとも一方により画像が
露光され、静電潜像が形成される。この静電潜像は現像
器４又は４′によって現像された後、給紙カセット５か
ら給紙ローラ６１（、より給送される転写紙７上に転写
帯電器８によって転写される。その後、上記転写紙７は
、定着器９によって転写画像が定着された後外部に排出
される。図中、３１はクリーニング装置を示す。FIG. 2 shows an embodiment of an image recording apparatus according to the present invention. In the figure, 1 is a photosensitive drum as an image carrier, and after this photosensitive drum 1 is uniformly charged by a primary charger 2, a light control element array 10, which will be described in detail later, is placed on the photosensitive drum 1.
The image is exposed by at least one of the image exposing means 3 which exposes the image of the normal document through the shutter member 30, and an electrostatic latent image is formed. After this electrostatic latent image is developed by the developer 4 or 4', it is transferred from the paper cassette 5 onto the transfer paper 7 fed by the paper feed roller 61 (and by the transfer charger 8. The transfer paper 7 is discharged outside after the transfer image is fixed by the fixing device 9. In the figure, 31 indicates a cleaning device.
第１図は上記光制御素子アレイを示すものである。この
実施例では、光制御素子アレイ１０としてエレクトロル
ミネッセンス（以下、ＥＬと称する）を利用したＥＬ発
光素子を用いている。この光制御素子アレイｌＯは第１
電極１１、絶縁層１２、発光層１３、透光性の第２電ａ
１４より構成されており、該第１．２の電極１１．１４
のいずれかは画素のピッチに対応して微細な領域に分割
されているとともに、両電極１１．１４は絶縁フィルム
１．５．１６により覆われている。また、」−記両電極
１１．１４は、絶縁フィルム１５または１６の表面に沿
う引出線（図示せず）により駆動回路素子１７に接続さ
れている。上記第１゜２の電極１１．１４の双方とも画
素ピッチに応じて分割してマトリックス駆動する場合は
、両電極とも上記と同様に引き出し線で駆動回路素子に
接続される。上記駆動回路素子１７を固着したプリント
基板１８は、接着剤により支持体１９に取り付けられて
おり、該プリント基板１８は、絶縁フィルム１５．１６
と異方導電性接着剤により電気的に接続されている。光
制御素子アレイｌＯはスポンジゴム等の弾性体２０を介
して支持体１９へ取り付けられる。この弾性体２０は、
光制御素子アレイ１０を感光体ドラム１に圧接したとき
に、この感光体ドラム１の平面にある数十ミクロン程度
の平面からのずれを吸収し、一様な接触を実現させるた
めのものである。従って、感光体側がベルト等のフレキ
シブル又は弾性を有するものの場合には必ずしも必要と
しない。FIG. 1 shows the above-mentioned light control element array. In this embodiment, an EL light emitting element utilizing electroluminescence (hereinafter referred to as EL) is used as the light control element array 10. This light control element array lO is the first
Electrode 11, insulating layer 12, light emitting layer 13, transparent second electrode a
14, and the 1.2nd electrode 11.14
Either one of the electrodes 11.14 is divided into fine regions corresponding to the pixel pitch, and both electrodes 11.14 are covered with an insulating film 1.5.16. Further, the electrodes 11 and 14 are connected to the drive circuit element 17 by a lead wire (not shown) along the surface of the insulating film 15 or 16. When both of the first and second electrodes 11 and 14 are divided according to the pixel pitch and driven in a matrix, both electrodes are connected to the drive circuit element by lead lines in the same manner as described above. A printed circuit board 18 to which the drive circuit element 17 is fixed is attached to a support 19 with an adhesive, and the printed circuit board 18 is attached to an insulating film 15.16.
and are electrically connected by an anisotropic conductive adhesive. The light control element array 1O is attached to the support 19 via an elastic body 20 such as sponge rubber. This elastic body 20 is
When the light control element array 10 is brought into pressure contact with the photoreceptor drum 1, this is to absorb deviations from the plane of the photoreceptor drum 1 of about several tens of microns, and to realize uniform contact. . Therefore, it is not necessarily necessary when the photoreceptor side is flexible or elastic, such as a belt.
この光制御素子アレイの感光ドラム上への圧接力は重要
なファクターであり、該圧接力が弱すぎて感光ドラムと
の間に非接触部が生じると、この非接触部に長期間の使
用によりトナーが付着し、光量を低下させる。また、圧
接力が強すぎた場合には、光制御素子の表面層が摩耗し
易く、耐久性が低下したり、静電潜像が乱れる。特に、
付着トナーが光制御素子の表面層と感光体との間に介在
したときには、部分的な黒筋が発生しやすくなる。そこ
で、光制御素子は、圧力１ ｋｇ／ ｃｍ２以下で感光
体上に圧接するのが望ましい。The pressing force of this light control element array onto the photosensitive drum is an important factor, and if the pressing force is too weak and a non-contact area is created between the photosensitive drum and the photosensitive drum, this non-contact area may be damaged due to long-term use. Toner adheres and reduces the amount of light. Furthermore, if the pressing force is too strong, the surface layer of the light control element is likely to wear out, resulting in decreased durability and disturbance of the electrostatic latent image. especially,
When the adhered toner is interposed between the surface layer of the light control element and the photoreceptor, partial black streaks are likely to occur. Therefore, it is desirable that the light control element be brought into pressure contact with the photoreceptor at a pressure of 1 kg/cm2 or less.
この実施例では、上記絶縁性フィルム６の表面が透光性
を有する絶縁性の表面層２１により覆われている。この
表面層２１の材質としては、低摩擦係数の物質を用いる
のが好ましく、テフロン、その他の弗素系ポリマー、高
密度ポリエチレン、これらの物質の分散体等が用いられ
る。上記表面層２１の厚さは、必要とされる解像度によ
り決定されるが、例えば１０〜２００ミクロン程度とす
る。」１記表面層２１として低摩擦係数の部材を用いる
のが好ましいのは、トナーやキャリアその他の異物が表
面層２１と感光ドラム１間に侵入した場合、感光ドラム
１の移動とともに異物がすみゃかに通過して感光ドラム
１表面に傷をつけることがないためと、表面層２１に汚
れが付着し難く露光効率を低下させることがないように
するためである。In this embodiment, the surface of the insulating film 6 is covered with an insulating surface layer 21 having light-transmitting properties. As the material for this surface layer 21, it is preferable to use a substance with a low coefficient of friction, such as Teflon, other fluorine-based polymers, high-density polyethylene, and dispersions of these substances. The thickness of the surface layer 21 is determined depending on the required resolution, and is, for example, about 10 to 200 microns. 1. It is preferable to use a member with a low coefficient of friction as the surface layer 21 because, if toner, carrier, or other foreign matter enters between the surface layer 21 and the photosensitive drum 1, the foreign matter will disappear as the photosensitive drum 1 moves. This is to prevent the surface of the photosensitive drum 1 from being damaged by passing through the surface of the photosensitive drum 1, and to prevent dirt from adhering to the surface layer 21 and reducing exposure efficiency.
このように、光制御素子アレイ１０の表面を表面層２１
で覆い、該表面層２１を介して感光ドラム１の表面に圧
接するようにしたので、結像レンズを用いる必要がなく
、装置の小型化および低コスト化が可能であるとともに
、少ない発光量で高品質の画像露光を行なうことができ
る。また、光制御素子アレイ１０を常に感光ドラム１の
表面に接触させておくことができ、非接触部にトナー等
が付着して光量が低下するのを防止できる。さらに、光
制御素子アレイ１０の光量を小さくすることができるの
で、一つの駆動素子で多くの素子アレイを駆動すること
ができ、駆動素子の数を少なくすることができ、低コス
ト化が可能となる。In this way, the surface of the light control element array 10 is covered with the surface layer 21.
Since the surface of the photosensitive drum 1 is covered with the surface layer 21 and brought into pressure contact with the surface of the photosensitive drum 1 through the surface layer 21, there is no need to use an imaging lens. High quality image exposure can be performed. Further, the light control element array 10 can be kept in contact with the surface of the photosensitive drum 1 at all times, and it is possible to prevent toner and the like from adhering to the non-contact portions and reducing the amount of light. Furthermore, since the light intensity of the light control element array 10 can be reduced, many element arrays can be driven with one driving element, the number of driving elements can be reduced, and costs can be reduced. Become.
なお、前記実施例では、光制御素子アレイとしてＥＬ発
光素子を用いた場合について説明したが、これに限定さ
れる訳ではなく、ＬＥＤアレイや光源からの光の透過を
微細な領域で制御する液晶シャッターアレイ等を用いて
もよいことはもちろんである。In addition, in the above embodiment, a case was explained in which an EL light emitting element is used as a light control element array, but the invention is not limited to this. Of course, a shutter array or the like may also be used.
また、必要に応じて光制御素子の表面を清掃する手段を
設けてもよいことはもちろんである。特に、接触部の外
側に汚れがたまる場合があるので、この部分の機械的な
清掃を行なったり、非画像記録時に光制御素子の接触圧
および角度を自動的に調整するようにしてもよい。Furthermore, it goes without saying that a means for cleaning the surface of the light control element may be provided as necessary. In particular, since dirt may accumulate on the outside of the contact portion, this portion may be mechanically cleaned, or the contact pressure and angle of the light control element may be automatically adjusted during non-image recording.
（発明の効果）
本発明は以上の構成および作用よりなるもので、結像レ
ンズを使用しないため、装置の小型化および低コスト化
が可能であり、光制御素子アレイの発光量を小さくして
消費電力を少なくすることができるとともに長寿命化が
可能であり、しかも光制御素子アレイの汚れを防止する
ことができる。(Effects of the Invention) The present invention has the above-described configuration and operation, and since no imaging lens is used, the device can be made smaller and lower in cost, and the amount of light emitted by the light control element array can be reduced. It is possible to reduce power consumption, extend the lifespan, and prevent the light control element array from becoming dirty.
第１図は本発明に係る画像記録装置に用いられる光制御
素子アレイを示す断面図、第２図は本発明に係る画像記
録装置を示す構成図である。
符号の説明
ｌ・・・感光ドラム
１０・・・光制御素子アレイ
２１・・・表面層FIG. 1 is a sectional view showing a light control element array used in an image recording apparatus according to the invention, and FIG. 2 is a configuration diagram showing the image recording apparatus according to the invention. Explanation of symbols l...Photosensitive drum 10...Light control element array 21...Surface layer
Claims (3)
制御可能な光制御素子アレイを用いて像担持体上に画像
を露光して記録する画像記録装置において、上記光制御
素子アレイの表面を透光性被膜で覆い、該透光性被膜を
介して光制御素子アレイを像担持体上に圧接することを
特徴とする画像記録装置。(1) In an image recording apparatus that exposes and records an image on an image carrier using a light control element array capable of controlling light emission in a minute area or passage of light in a minute area, the light control element array is An image recording apparatus characterized in that a surface of the image recording member is covered with a light-transmitting film, and a light control element array is pressed onto an image carrier through the light-transmitting film.
とする特許請求の範囲第１項記載の画像記録装置。(2) The image recording apparatus according to claim 1, wherein the light-transmitting coating is made of a fluorine-based resin.
２以下であることを特徴とする特許請求の範囲第１項ま
たは第２項記載の画像記録装 置。(3) The pressure force of the light control element array is 1 kg/cm^
The image recording device according to claim 1 or 2, characterized in that the number is 2 or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP448587A JPS63172288A (en) | 1987-01-12 | 1987-01-12 | Image recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP448587A JPS63172288A (en) | 1987-01-12 | 1987-01-12 | Image recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63172288A true JPS63172288A (en) | 1988-07-15 |
Family
ID=11585397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP448587A Pending JPS63172288A (en) | 1987-01-12 | 1987-01-12 | Image recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63172288A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03100442U (en) * | 1990-01-29 | 1991-10-21 | ||
| JP2007271966A (en) * | 2006-03-31 | 2007-10-18 | Kyocera Corp | Electrophotographic recording apparatus |
| US7710444B2 (en) | 2005-02-09 | 2010-05-04 | Seiko Epson Corporation | Image forming apparatus for forming a latent image on an image carrier |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6118924A (en) * | 1984-07-04 | 1986-01-27 | Sharp Corp | Recording device |
| JPS62231970A (en) * | 1986-04-01 | 1987-10-12 | Fuji Xerox Co Ltd | Optical writing device |
-
1987
- 1987-01-12 JP JP448587A patent/JPS63172288A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6118924A (en) * | 1984-07-04 | 1986-01-27 | Sharp Corp | Recording device |
| JPS62231970A (en) * | 1986-04-01 | 1987-10-12 | Fuji Xerox Co Ltd | Optical writing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03100442U (en) * | 1990-01-29 | 1991-10-21 | ||
| US7710444B2 (en) | 2005-02-09 | 2010-05-04 | Seiko Epson Corporation | Image forming apparatus for forming a latent image on an image carrier |
| JP2007271966A (en) * | 2006-03-31 | 2007-10-18 | Kyocera Corp | Electrophotographic recording apparatus |
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