JPS5843470A - Image recording apparatus - Google Patents
Image recording apparatusInfo
- Publication number
- JPS5843470A JPS5843470A JP14197281A JP14197281A JPS5843470A JP S5843470 A JPS5843470 A JP S5843470A JP 14197281 A JP14197281 A JP 14197281A JP 14197281 A JP14197281 A JP 14197281A JP S5843470 A JPS5843470 A JP S5843470A
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- optical system
- light
- image
- solid
- 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
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
- G03G15/04081—Exposure from behind the photoconductive surface
-
- 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
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/04036—Details of illuminating systems, e.g. lamps, reflectors
- G03G15/04045—Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers
- G03G15/04054—Details of illuminating systems, e.g. lamps, reflectors for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers by LED arrays
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は画像記録装置に係り、特に固体発光素子の発光
輝点を結像光学系を用いて感光体に結像する電子写真複
写装置におけ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, and more particularly to an image recording apparatus in an electrophotographic copying apparatus that forms an image of a luminescent spot of a solid-state light emitting element on a photoreceptor using an imaging optical system.
従来、第1図に示すように、LEDアレイプリンタなと
の固体発光素子lを用いた画像記録装置においては、集
束性光伝送体(以下8LAという)や、レンズ等の結像
光学系コを用いて感光体3の表面に儂を投影し、電子写
真方式のプロセスによシ可視画儂を得るよう罠なされ比
もの、あるいは第2図のように固体発光素子lt−感光
体Jの長手方向に対し千鳥状に一列に配設し、感光体3
上同−箇所に結像するようになされ比ものがあるが、□
いずれも感光体Jの外面側から露光を与える構成であっ
た。Conventionally, as shown in Fig. 1, image recording devices using solid-state light emitting elements, such as LED array printers, require a focusing light transmitter (hereinafter referred to as 8LA) and an imaging optical system such as a lens. The photoreceptor 3 can be used to project images onto the surface of the photoreceptor 3, and a trap is formed to obtain a visible image through an electrophotographic process, or as shown in FIG. The photoreceptors 3 are arranged in a row in a staggered manner.
Same as above - There is a similar method that focuses the image on the spot, but □
In both cases, the photoconductor J was exposed to light from its outer surface.
しかる・に上記構成では、固体発光索子11結渾光学系
コと、現像@弘、転写チャージャj1除電クリーニング
部t、帯電チャージャ7等を含む現像装置とがいずれも
感光体3の外側にあつて該感光体3に対し同一側に配置
される関係上、現憚剤や装置内部の粉塵等が結像光学系
コや固体発光素子lの表面に付層し、これらを汚損して
画像性能の劣化を招いていた。However, in the above configuration, the solid-state light-emitting element 11 converging optical system and the developing device including the developer, transfer charger j1, static elimination cleaning section t, charger 7, etc. are located outside the photoreceptor 3. Because they are placed on the same side with respect to the photoreceptor 3, the developer and dust inside the device form a layer on the surfaces of the imaging optical system and the solid-state light emitting element, contaminating them and impairing image performance. was causing deterioration.
本発明はこれに鑑み、感光体への露光光学系の汚損を防
止し、画像性能の向上を図った画像記録装置を提供する
ことを目的としてなされたものである。In view of this, the present invention has been made with the object of providing an image recording apparatus that prevents staining of the exposure optical system for the photoreceptor and improves image performance.
上記目的を達成するため、本発明においては、固体発光
素子の発光輝点を結像光学系を用いて感光体に結像する
電子写真複写装置において、固体発光素子および結像光
学系と現像装置とを感光体を間にして反対側に配設した
ことを特徴とするものである。In order to achieve the above object, the present invention provides an electrophotographic copying apparatus that images a luminescent spot of a solid-state light-emitting element on a photoreceptor using an imaging optical system, which includes a solid-state light-emitting element, an imaging optical system, and a developing device. and are disposed on opposite sides with the photoreceptor in between.
以下、本発明を第4図乃至第1S図に示す実施例オニ1
、あi @ s□F””’m AAヶ、工よゆ。Embodiment 1 of the present invention shown in FIGS. 4 to 1S will be described below.
, Ai @ s□F""'m AA, engineering.
−符号を付して説明する。- Explanation with reference numerals.
第参図乃至第を図は、本発明において用いられる結像光
学系コの一例を示すもので、第参図において物体tを1
点に投影結像させるに、一つの反射面?、ダを有する反
射部材ioの第1反射+ffi?で反射され次物体rか
らの光は、レンズ//を通って膳根型反射部材/J (
以下ダハミラーという)のコつの反射ミラー/J、/J
によシ反射されて光路を変換され、前記反射部#10の
第1反射面グによシ反射してt°点に#僚する光学系(
以下これを総称してDMLムという)である。なお、実
際に使用する場合には、レンズ/lとダハばラー/コと
の間VC遮光部材l弘、芹・・・を置き、ダハミラー/
2の反射光が隣位の光路に影響を与えないようKする。Figures 1 to 2 show an example of the imaging optical system used in the present invention.
One reflective surface to project and form an image on a point? , the first reflection of the reflective member io having da+ffi? The light from the next object r is reflected by the lens // and passes through the bowl-shaped reflective member /J (
Reflection mirror (hereinafter referred to as roof mirror) /J, /J
The optical system (
Hereinafter, this will be collectively referred to as DML. In addition, when actually using it, place a VC light shielding member between the lens/l and the roof mirror/co, and
K so that the reflected light of No. 2 does not affect the adjacent optical path.
第7図乃至第り図は、前記DMLAを用い友画像記録装
置の具体的実施例を示すもので、第7図はドラム状の感
光−Jの内部に前記DMLAを一組配置し、固体発光素
子t、iの発光パターンを感光11
4″Kml−3E咲チ。1″°“111゜第1図は前記
DMLムに代え、2組のBLムを配置し、この8LAを
通じ固体発光素子t、iの発光パターンを感光体JKI
Ig光させるようKLI場合である。7 to 7 show a specific embodiment of a companion image recording device using the DMLA. In FIG. The light emitting pattern of elements t and i is exposed to light. , the light emitting pattern of i on the photoreceptor JKI
This is the case for KLI to emit Ig light.
さらに第り図は、前記SLAにえ、−個の結像レンズ/
SS/3を配設し、この結像レンズ/j%15により固
体発光素子/、/の発光バ′ターンを等倍結像または縮
少結像して感光体JKM!光するようにした場合である
。Furthermore, the second diagram shows that in addition to the SLA, - imaging lenses/
SS/3 is installed, and this imaging lens /j%15 images the light-emitting pattern of the solid-state light-emitting elements /, / at the same magnification or reduced size to image the photoreceptor JKM! This is the case when it is made to glow.
上記実施例に用いられる感光体3は、その−例を第12
図に拡大断面として示しているように、ガラス、プラス
チック、高分子フィルム等からなる透明基材16に、I
nO3,5n02 %これらの混合物等を真空蒸着、ス
パッタリング法、イオンブレーティング法などのPVD
法等で&にし′fc透明導電層17を形成し、その表面
にS・、ZnO% Cd8等の無機感光体、有機感光体
などの感光層ttrを形成したものである・。The photoreceptor 3 used in the above embodiment is the 12th example.
As shown in the enlarged cross section in the figure, a transparent base material 16 made of glass, plastic, polymer film, etc.
nO3, 5n02% A mixture of these, etc., is subjected to PVD such as vacuum evaporation, sputtering method, ion blating method, etc.
A transparent conductive layer 17 is formed by a method or the like, and a photosensitive layer ttr of an inorganic photoreceptor such as S, ZnO% Cd8, or an organic photoreceptor is formed on the surface of the transparent conductive layer 17.
前記固体発光素子lのlチップが感光体Jの長手方向の
巾をカバーできる場合はlラインの配列でよいが、前記
中を男バーできない場合にはMn2図に示すように千鳥
状に配設し、発光部かλラインになるようにする。そし
て上ml固体発光素子には、LEDアレイ、LDアレイ
等を用いることができる。If the l chips of the solid-state light emitting elements l can cover the width of the photoreceptor J in the longitudinal direction, an l line arrangement may be sufficient, but if it is not possible to cover the inside, they may be arranged in a staggered manner as shown in Figure Mn2. Then, make sure that the light emitting part is on the λ line. An LED array, LD array, etc. can be used as the upper ml solid-state light emitting device.
第73図は他の実施例を示すもので、固体発光素子lの
代9に光スイッチアレイ19と光源Jとを用い几もので
、光源Jの光を光スイツ′チアレイ19で透光部と遮光
−と緋澹―才を順次選択することによシ、固体発光素子
を入力電気信号によって発光部を任意に選択した場合と
同様に使用することができる。FIG. 73 shows another embodiment, in which an optical switch array 19 and a light source J are used in place of the solid-state light emitting device 1, and the light from the light source J is transmitted to the light transmitting part by the optical switch array 19. By sequentially selecting light shielding and scarlet light, the solid state light emitting device can be used in the same way as when the light emitting portion is arbitrarily selected by an input electric signal.
上記光スイツチアレイ19としては、PLZTなどの電
気光学効果を有する誘導体セラきツクを偏光板で挾んだ
もめ、あるいはBIG結晶を用い次ものなどを任意のサ
イズのパターンに光透過部を構成して用いることができ
る。The optical switch array 19 may be constructed by using dielectric ceramics such as PLZT, which has an electro-optic effect, sandwiched between polarizing plates, or by using BIG crystals to form a light transmitting part in a pattern of any size. It can be used as
前記各実施@における感光体3は、いずれもドラム式の
場合について示し九が、この感光体3には第1jvA[
−例を示すようなベルト状の感光体3を用いることがで
き、さらにこのベルト状感光体Jの場合、必ずしもエン
ドレスとせず、シート状であっても適用することができ
る。The photoreceptor 3 in each of the above embodiments is of a drum type.
- A belt-like photoreceptor 3 as shown in the example can be used, and furthermore, in the case of this belt-like photoreceptor J, it is not necessarily endless, and even a sheet-like one can be applied.
また固体発光素子lの発光エレメントを選択する入力信
号は、例えばCOD%PDAなどの固体走査素子によシ
絖み取った原稿画像の信号であってもよく、あらかじめ
用意しfcIlkI像を出力させる信号であつてもよい
。さらに固体発光素子lのエレメント配列パターンとし
て□、t〜lコaotm/mu 程Flのものが多く用
いられるが、アウトプットする画像の種類や目的により
そのサイズは任意のものを用いることができる。Further, the input signal for selecting the light emitting element of the solid state light emitting element l may be a signal of an original image scanned by a solid state scanning element such as COD%PDA, or a signal prepared in advance and outputting an fcIlkI image. It may be. Further, as the element arrangement pattern of the solid-state light emitting device 1, an element arrangement pattern of □, t to l aotm/mu is often used, but any size can be used depending on the type and purpose of the image to be output.
なお、第741’図に示したように、感光体lの内周の
露光場所の接線に対し垂直に露光することが発光輝点形
状が変化しない友め、このように構成することが望まし
いが、例えば第7図に示し次実施例のように、λつの光
束を同一点に、しかも発光体3に対し垂直に露光するこ
とは峻かしく、その次め垂直露光する場合には、感光体
Jの回転中心から感光体lに向は光束が結1$i:麿れ
るような配置をとるが、その場合、一つの光束の露光位
置にはずれが生じる。このような場合には、固体発光原
子/i発光させる電気偏号をメモリーに記憶させ、2つ
のラインのずれ分だけ一方のラインを他方のラインに対
し遅らせて発光させるようにすればよい。Note that, as shown in FIG. 741', it is preferable to perform the exposure perpendicularly to the tangent of the exposure location on the inner circumference of the photoreceptor l so that the shape of the luminescent spot does not change. For example, as shown in FIG. 7 and in the next embodiment, it is difficult to expose λ light beams to the same point and perpendicularly to the light emitter 3. The arrangement is such that the light beams are connected from the center of rotation to the photoreceptor l, but in this case, the exposure position of one light beam is shifted. In such a case, it is sufficient to store the electric polarization of the solid light emitting atom/i in a memory and cause one line to emit light with a delay in relation to the other line by the amount of deviation between the two lines.
以上説明したように1本発明は固体発光素子の発光輝点
を結像光学系を用いて感光体に結像する電子写真複写装
置において、固体発光素子および結像光学系と現像装置
とを感光体を間にして互いに反対側に配置し得る構成と
したので、露光光学系を8!像部から完全に隔離した状
態として配設す゛ることができ、そのため現像部におい
て発生する粉塵やトナー溶剤等による露光光学系の汚損
が防止され1長期にわ7tシ画像品質が低下することを
防止し得る効果カーある。As explained above, one aspect of the present invention is an electrophotographic copying apparatus that forms an image of a luminescent spot of a solid-state light-emitting element on a photoreceptor using an imaging optical system. Since the configuration allows them to be placed on opposite sides of each other with their bodies in between, the exposure optical system can be placed on 8! It can be installed completely isolated from the image area, which prevents the exposure optical system from being contaminated by dust, toner solvent, etc. generated in the developing area, and prevents image quality from deteriorating over a long period of time. There are some effects that can be done.
第1図および第一図は従来の画像記録装置を示、、1:
す説明図、第3図は第1図の固体発光素子、レン1′:
ζ:□
ズ、感光体の位置関係を示す説明図、第び図乃至第1図
は本発明における結像光字糸の一実施例を示すもので、
ts−図は側面図、tlcz図は斜視図、第を図は平面
図、第7図乃至第2図は本発明の一実施例を示す説明図
、第10図は固体発光素子の配列例を示す平面図、M/
/図は同側面図、第1コ図は感光体の一部を拡大して示
す断面図、第73図乃至第is図は本発明の他の実施例
を示す説明図である。
I・・・固体発光素子、λ・・・結像光学系、3・・・
感光 ・体、ダ・・・現像器、!・・・転写チャージャ
、t・・・除電クリーニング部、7・・・帯電チャージ
ャ、10・・・反射部材、//・・・レンズ、lコ・・
・ダハミラー、13・・・反射ミラー、芹・・・遮光部
材、/3・・・結像レンズ。
出願人代理人 諸 股 清
3931 and 1 show a conventional image recording device, 1: An explanatory diagram, and FIG. 3 shows the solid-state light emitting device shown in FIG. 1, Len 1':
ζ:□ An explanatory diagram showing the positional relationship of the photoreceptor, and FIGS. 1 to 1 show an embodiment of the imaging optical string in the present invention,
The ts-diagram is a side view, the tlcz diagram is a perspective view, the ts-diagram is a plan view, FIGS. Plan view shown, M/
Figure 1 is a side view of the same, Figure 1 is an enlarged sectional view of a part of the photoreceptor, and Figures 73 to 73 are explanatory diagrams showing other embodiments of the present invention. I...Solid light emitting device, λ...Imaging optical system, 3...
Photosensitive body, da... developing device! ... Transfer charger, t... Static neutralization cleaning section, 7... Charger, 10... Reflective member, //... Lens, l...
- Roof mirror, 13...Reflecting mirror, Seri...Light shielding member, /3...Imaging lens. Applicant's agent Kiyoshi Moromata 393
Claims (1)
体に結像する電子写真方式装−において、固体発光素子
および結−光学系と現葎装置とを感光体を関にして互い
に反対側に配設したことを特徴とする画像記録装置。 コ、前ml結像光学系に集束性光伝送体アYイを用いた
ことを特徴とする特許請求の範囲第1項記載の画像i己
録装置。 。 3、前記結像光学系に複数個の結像レンズを用い、発光
輝点の像を縮少して結像すやようKしたことを特徴とす
る特1fFd求の範囲第1′項記載の画m記録装置。 1、前記結像光学系に、平面的に配列された似数個の屈
折レンズ素子と、複数個のダノ九ミラーとを用いたこと
τ時似とする特許請求の範囲第1項記載の◆儂記録装置
。[Scope of Claims] 1. In an electrophotographic system that images the luminescence of a solid-state light-emitting element on a photoreceptor using a condenser optical system, the solid-state light-emitting element, the condenser optical system, and the developing device are combined. An image recording device characterized in that: are arranged on opposite sides of a photoreceptor. (c) The image recording device according to claim 1, characterized in that a converging light transmitting body (I) is used in the front ml imaging optical system. . 3. The image according to item 1', characterized in that a plurality of imaging lenses are used in the imaging optical system, and the image of the light-emitting bright spot is reduced to facilitate image formation. m recording device. 1. The imaging optical system uses a similar number of refractive lens elements arranged in a plane and a plurality of Dano mirrors, as described in claim 1, which is similar to τ. My recording device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14197281A JPS5843470A (en) | 1981-09-09 | 1981-09-09 | Image recording apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14197281A JPS5843470A (en) | 1981-09-09 | 1981-09-09 | Image recording apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5843470A true JPS5843470A (en) | 1983-03-14 |
JPH0411866B2 JPH0411866B2 (en) | 1992-03-02 |
Family
ID=15304400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14197281A Granted JPS5843470A (en) | 1981-09-09 | 1981-09-09 | Image recording apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5843470A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6055364A (en) * | 1983-09-06 | 1985-03-30 | Tokyo Electric Co Ltd | Electrophotographic device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52140333A (en) * | 1976-05-18 | 1977-11-22 | Canon Inc | Optical device |
JPS5391743A (en) * | 1977-01-21 | 1978-08-11 | Nec Corp | Image formation process |
JPS5630154A (en) * | 1979-08-21 | 1981-03-26 | Oki Electric Ind Co Ltd | Photoprint head |
-
1981
- 1981-09-09 JP JP14197281A patent/JPS5843470A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52140333A (en) * | 1976-05-18 | 1977-11-22 | Canon Inc | Optical device |
JPS5391743A (en) * | 1977-01-21 | 1978-08-11 | Nec Corp | Image formation process |
JPS5630154A (en) * | 1979-08-21 | 1981-03-26 | Oki Electric Ind Co Ltd | Photoprint head |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6055364A (en) * | 1983-09-06 | 1985-03-30 | Tokyo Electric Co Ltd | Electrophotographic device |
JPH042189B2 (en) * | 1983-09-06 | 1992-01-16 |
Also Published As
Publication number | Publication date |
---|---|
JPH0411866B2 (en) | 1992-03-02 |
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