JPH03131875A - Electrophotographic printer of liquid crystal shutter type - Google Patents
Electrophotographic printer of liquid crystal shutter typeInfo
- Publication number
- JPH03131875A JPH03131875A JP27090389A JP27090389A JPH03131875A JP H03131875 A JPH03131875 A JP H03131875A JP 27090389 A JP27090389 A JP 27090389A JP 27090389 A JP27090389 A JP 27090389A JP H03131875 A JPH03131875 A JP H03131875A
- Authority
- JP
- Japan
- Prior art keywords
- lamp
- liquid crystal
- light source
- optical fiber
- heat roller
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 14
- 239000013307 optical fiber Substances 0.000 claims abstract description 11
- 206010000117 Abnormal behaviour Diseases 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Fixing For Electrophotography (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〕
本発明は電子写真式プリンタに関し、特に液晶シャッタ
アレイを用いたプリンタに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to electrophotographic printers, and more particularly to printers using liquid crystal shutter arrays.
従来この種のプリンタは、第４図に示すように感光ドラ
ム７の周囲に帯電部８と、ヘッド部ランプ１６、遮光部
１５、シャッタアレイ５、およびレンズアレイ６を一体
としたヘッド部と、現像部９と、クリーナ部１０と、除
電部１１とを配設していた。記録は、記録紙１２を紙送
り方向１３に沿って送ることにより感光ドラム７上の像
を転写し、ランプ２の発する熱により高温となったヒー
トロール３とそれに圧着されたフレラシャローラ４との
間を通過する際の熱及び圧力によりパターンを定着させ
る方式をとっていた。Conventionally, this type of printer has a head unit that integrates a charging unit 8, a head lamp 16, a light shielding unit 15, a shutter array 5, and a lens array 6 around a photosensitive drum 7, as shown in FIG. A developing section 9, a cleaner section 10, and a static eliminator 11 were provided. Recording is performed by transferring the image on the photosensitive drum 7 by feeding the recording paper 12 along the paper feeding direction 13, and transferring the image onto the photosensitive drum 7 between the heat roll 3, which has become high in temperature due to the heat generated by the lamp 2, and the flerasha roller 4, which is pressed against the heat roll 3. The pattern was fixed by heat and pressure when passing through the space.
上述した従来の電子写真式プリンタはヒートローラの熱
源にランプ２を用いヘッド部の光源１６は別に用意して
おり、エネルギー効率を考えると大変不利な構成になっ
ていた。また、ヘッド部の光源１６より発生する熱がシ
ャッタアレイ内の液晶５の挙動に悪影響を与えるという
問題もあった。The above-mentioned conventional electrophotographic printer uses the lamp 2 as a heat source for the heat roller and separately prepares a light source 16 for the head section, which is a very disadvantageous configuration in terms of energy efficiency. There is also a problem in that the heat generated by the light source 16 in the head section adversely affects the behavior of the liquid crystal 5 in the shutter array.
本発明の液晶シャッタ式電子写真プリンタは、液晶シャ
ッタアレイを光源と感光ドラムとの間に配設し、このシ
ャッタアレイのオン・オフにより通過光量を制御してそ
れに基いて、パターンを出力する電子写真プリンタにお
いて、定着部のヒートローラの熱源にハロゲン球等のラ
ンプを用い、そのランプから出される光を光ファイバー
でシャッタアレイ部に導き、出カバターン形成用の光源
としている。The liquid crystal shutter type electrophotographic printer of the present invention includes a liquid crystal shutter array disposed between a light source and a photosensitive drum, and an electronic device that outputs a pattern based on the amount of light passing through the printer by controlling the amount of passing light by turning on and off the shutter array. In a photographic printer, a lamp such as a halogen bulb is used as a heat source for a heat roller in a fixing section, and the light emitted from the lamp is guided to a shutter array section through an optical fiber to serve as a light source for forming an output pattern.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例の概観図、第２図は本発明に
よるヒートローラ部の分解斜視図、第３図はヘッド部の
拡大斜視図である。従来との相違は、第１図に示すよう
にヒートローラ３内の熱源として利用しているランプ２
より発する光を光ファイバー１に導き、ヘッド部に接続
している。FIG. 1 is a schematic diagram of an embodiment of the present invention, FIG. 2 is an exploded perspective view of a heat roller section according to the present invention, and FIG. 3 is an enlarged perspective view of a head section. The difference from the conventional one is that the lamp 2 is used as a heat source inside the heat roller 3, as shown in FIG.
The light emitted from the head is guided to an optical fiber 1, which is connected to the head section.
このことによりヒートローラ３内のランプ２をヘッド部
の光源として利用することが可能となる。This allows the lamp 2 inside the heat roller 3 to be used as a light source for the head section.
ヒートローラ３内には、第２図に示すように、ウオーム
アツプ用の補助ランプ１４と出力中には常に点灯してい
る主ランプ２とを組み込み、光源用の光ファイバー１は
主ランプ２に接続されている。プリンタの電源投入時よ
りヒートローラ３が定常発熱になる間には補助ランプ１
４が主ランプ２と共に点灯することでウオームアツプ時
間の短縮を図っている。光ファイバー１のヘッド部への
接続は第３図に示すように遮光部１５をガイドとして光
ファイバーの各々の繊維を直線状に配置しており、シャ
ッタアレイ５の全幅にわたる光源を形成している。As shown in Figure 2, the heat roller 3 incorporates an auxiliary lamp 14 for warm-up and a main lamp 2 that is always lit during output, and the optical fiber 1 for the light source is connected to the main lamp 2. has been done. The auxiliary lamp 1 is turned on while the heat roller 3 generates steady heat after the power is turned on to the printer.
4 is lit together with the main lamp 2 to shorten the warm-up time. As shown in FIG. 3, the optical fibers 1 are connected to the head section by arranging each optical fiber in a straight line using the light blocking section 15 as a guide, thereby forming a light source spanning the entire width of the shutter array 5.
以上説明したように、本発明はヒートローラ内のランプ
をヘッド部の光源とすることでランプ（光源）の数を削
減することが可能になり、全体として消費電力の少ない
装置が実現可能となる。As explained above, the present invention makes it possible to reduce the number of lamps (light sources) by using the lamp inside the heat roller as the light source of the head, making it possible to realize a device that consumes less power overall. .
また、光源となるランプがシャッタアレイ近傍には存在
しないという構成にできるため、光源による温度上昇が
回避でき高温下におけるシャッタ内液晶の異常な挙動を
防止することもできる効果がある。Furthermore, since the lamp serving as the light source can be configured so as not to exist near the shutter array, temperature rise due to the light source can be avoided, and abnormal behavior of the liquid crystal in the shutter at high temperatures can also be prevented.
第１図は本発明の一実施例の構成図、第２図は第１図の
ヒートローラ部の分解斜視図、第３図は第１図のヘッド
部の拡大斜視図、第４図は従来の装置の構成図である。
１・・・光ファイバー ２・・・ランプ、３・・・ヒー
トローラ、４・・・プレッシャローラ、５・・・シャッ
タアレイ、６・・・レンズアレイ、７・・・感光ドラム
、８・・・帯電部、９・・・現像部、１０・・・クリー
ナ部、１１・・・除電部、１２・・・記録紙、１３・・
・紙送り方向、１４・・・補助ランプ、１５・・・遮光
部、１６・・・ヘッド部うン乙Fig. 1 is a configuration diagram of an embodiment of the present invention, Fig. 2 is an exploded perspective view of the heat roller section of Fig. 1, Fig. 3 is an enlarged perspective view of the head section of Fig. 1, and Fig. 4 is a conventional FIG. DESCRIPTION OF SYMBOLS 1... Optical fiber 2... Lamp, 3... Heat roller, 4... Pressure roller, 5... Shutter array, 6... Lens array, 7... Photosensitive drum, 8... Charging section, 9... Developing section, 10... Cleaner section, 11... Discharge section, 12... Recording paper, 13...
・Paper feeding direction, 14... Auxiliary lamp, 15... Light shielding part, 16... Head part
Claims (1)
該液晶シャッタアレイのオン・オフにより通過光量を制
御する液晶シャッタ式電子写真プリンタにおいて、定着
部のヒートローラの熱源にランプを用い、該ランプから
出される光を光ファイバーで前記液晶シャッタアレイに
導いて前記光源とすることを特徴とする液晶シャッタ式
電子写真プリンタ。In a liquid crystal shutter electrophotographic printer in which a liquid crystal shutter array is disposed between a light source and a photosensitive drum and the amount of passing light is controlled by turning on and off the liquid crystal shutter array, a lamp is used as a heat source for a heat roller in a fixing section. A liquid crystal shutter type electrophotographic printer characterized in that light emitted from a lamp is guided to the liquid crystal shutter array using an optical fiber to serve as the light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27090389A JPH03131875A (en) | 1989-10-17 | 1989-10-17 | Electrophotographic printer of liquid crystal shutter type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27090389A JPH03131875A (en) | 1989-10-17 | 1989-10-17 | Electrophotographic printer of liquid crystal shutter type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03131875A true JPH03131875A (en) | 1991-06-05 |
Family
ID=17492589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27090389A Pending JPH03131875A (en) | 1989-10-17 | 1989-10-17 | Electrophotographic printer of liquid crystal shutter type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03131875A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5013686A (en) * | 1987-09-30 | 1991-05-07 | Samsung Electronics Co., Ltd. | Method of making semiconductor devices having ohmic contact |
-
1989
- 1989-10-17 JP JP27090389A patent/JPH03131875A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5013686A (en) * | 1987-09-30 | 1991-05-07 | Samsung Electronics Co., Ltd. | Method of making semiconductor devices having ohmic contact |
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