JPH0614192Y2 - Recording device - Google Patents
Recording deviceInfo
- Publication number
- JPH0614192Y2 JPH0614192Y2 JP8013387U JP8013387U JPH0614192Y2 JP H0614192 Y2 JPH0614192 Y2 JP H0614192Y2 JP 8013387 U JP8013387 U JP 8013387U JP 8013387 U JP8013387 U JP 8013387U JP H0614192 Y2 JPH0614192 Y2 JP H0614192Y2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- optical shutter
- crystal optical
- light
- light source
- 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 - Lifetime
Links
Landscapes
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Liquid Crystal (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Description
【考案の詳細な説明】 〔考案の技術分野〕 本考案は液晶光シャッタを用いた記録装置、即ち液晶を
光シャッタとして用い、感光体に記録信号に応じた光照
射を行って記録画像を形成する記録装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention uses a liquid crystal optical shutter as a recording device, that is, a liquid crystal as an optical shutter, and irradiates a photoconductor with light according to a recording signal to form a recorded image. Recording device.
液晶光シャッタを開閉駆動することにより感光体ドラム
へ光書込みを行う記録装置が知られている。2. Description of the Related Art A recording device is known in which a liquid crystal optical shutter is opened / closed to perform optical writing on a photosensitive drum.
このような記録装置に用いる液晶光シャッタは、高速応
答が要求されるため、液晶光シャッタに接触させてヒー
タと測温素子を配設し、液晶光シャッタを所定温度に加
熱制御して使用している。従って、記録装置に電源を投
入した後液晶光シャッタが上述の所定温度に達するまで
の待ち時間が必要であった。この待ち時間を短縮するた
めに、ヒータとして発熱量の大きなものを用いることを
試みたが、ヒータは液晶光シャッタの内部の液晶剤を直
接加熱するのではなく、ガラス基板等の部材を介して加
熱しており、また測温素子もガラス基板等の部材を介し
て測温しているので、発熱量の大きなヒータを用いた場
合には、オーバーシュートの量が大きくなり、液晶光シ
ャッタ（実際には液晶剤）の温度が許容温度範囲内に収
まらないという問題点が有った。Since a liquid crystal optical shutter used in such a recording device is required to have a high-speed response, a heater and a temperature measuring element are arranged in contact with the liquid crystal optical shutter, and the liquid crystal optical shutter is heated to a predetermined temperature for use. ing. Therefore, it is necessary to wait for the liquid crystal optical shutter to reach the above-mentioned predetermined temperature after the recording apparatus is powered on. In order to shorten this waiting time, we tried to use a heater with a large amount of heat generation, but the heater does not directly heat the liquid crystal agent inside the liquid crystal optical shutter, but rather through a member such as a glass substrate. Since the heater is heating and the temperature measuring element also measures the temperature through a member such as a glass substrate, the amount of overshoot becomes large when a heater with a large amount of heat generation is used. However, there is a problem that the temperature of the liquid crystal agent does not fall within the allowable temperature range.
液晶光シャッタの温度が許容温度範囲に収まらない場合
には、液晶光シャッタの応答速度や光学特性が変化して
しまうので、良好な記録画像を得ることができないとい
う問題点が有った。If the temperature of the liquid crystal optical shutter does not fall within the allowable temperature range, the response speed and optical characteristics of the liquid crystal optical shutter change, so that a good recorded image cannot be obtained.
本考案は上記従来の欠点に鑑み、オーバーシュートの量
を増加させることなく、液晶光シャッタが所定温度に達
するまでの時間を短縮化し、待ち時間が少なく、良好な
記録画像の得られる記録装置を提供するものである。In view of the above-mentioned conventional drawbacks, the present invention provides a recording apparatus that shortens the time required for the liquid crystal optical shutter to reach a predetermined temperature without increasing the amount of overshoot, reduces waiting time, and obtains a good recorded image. It is provided.
本考案は上記目的を達成するために、記録信号に従って
光学的に開閉する多数のマイクロシャッタを備えた液晶
光シャッタと、該液晶光シャッタに設けられ該液晶光シ
ャッタの温度を検知する温度検知素子と、前記液晶光シ
ャッタに光を照射する光源とを有し、前記マイクロシャ
ッタの透過した光を感光体に照射して記録動作を行う記
録装置において、前記光源は熱線を含む光を出射する光
源であり、該光源と前記液晶光シャッタとの間に介在す
る第１の位置と前記光源と前記液晶光シャッタとの間よ
り退避した第２の位置とに移動制御される熱線カットフ
ィルタとを有し、装置本体の電源投入後前記液晶光シャ
ッタが所定温度に達するまでは前記光源を点灯させると
共に前記熱線カットフィルタを前記第２の位置に制御
し、前記所定温度に達した以後は、前記熱線カットフィ
ルタを前記第１の位置に制御する制御手段を備えたこと
を特徴とする。In order to achieve the above object, the present invention provides a liquid crystal optical shutter having a large number of micro shutters which are opened and closed optically according to a recording signal, and a temperature detecting element provided in the liquid crystal optical shutter for detecting the temperature of the liquid crystal optical shutter. And a light source for irradiating the liquid crystal optical shutter with light, wherein the light source emits light including heat rays in a recording device for irradiating the photoconductor with light transmitted through the microshutter to perform a recording operation. And a heat ray cut filter whose movement is controlled to a first position interposed between the light source and the liquid crystal optical shutter and a second position retracted from between the light source and the liquid crystal optical shutter. Then, after turning on the power of the apparatus main body, the light source is turned on and the heat ray cut filter is controlled to the second position until the liquid crystal optical shutter reaches a predetermined temperature, so that the liquid crystal light shutter reaches the predetermined temperature. Thereafter it was is characterized by comprising control means for controlling the heat ray cut filter to the first position.
以下、本考案の実施例を図面を参照して詳細に説明す
る。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
本考案の記録装置１は、第２図に示すように、図示矢印
Ａ方向に回転する感光ドラム２の表面を帯電電極３によ
り帯電し、帯電した感光ドラム２に光記録ヘッド４によ
り記録画像に応じた光像の照射を行う。光記録ヘッド４
は、結像レンズアレイ（日本板硝子社製商品名、セルフ
ォック・レンズ・アレイ）５、液晶光シャッタ６、及び
後述する光源部７等を有している。液晶光シャッタ６は
主走査方向（感光ドラム２の回転軸と平行方向）に列設
された多数のマイクロシャッタを備えており、個々のマ
イクロシャッタが記録信号（ビデオデータ）に従って開
閉制御される。そして、液晶光シャッタ６の上方に配設
された光源部７からの光を個々のマイクロシャッタが透
過制御することにより、記録すべき画像に応じた光像の
照射が行われ、感光ドラム２に静電潜像が形成される。
この潜像は現像器８により現像されてトナー像と成り、
該トナー像は図示しない給紙手段によって給送されてき
た転写紙９に転写電極１０により転写される。As shown in FIG. 2, the recording apparatus 1 of the present invention charges the surface of the photosensitive drum 2 rotating in the direction of the arrow A by a charging electrode 3, and the charged image on the photosensitive drum 2 is recorded by the optical recording head 4. The corresponding light image is irradiated. Optical recording head 4
Has an image forming lens array (Nippon Sheet Glass Co., Ltd. product name, SELFOC lens array) 5, a liquid crystal optical shutter 6, a light source unit 7 described later, and the like. The liquid crystal optical shutter 6 includes a large number of micro shutters arranged in a row in the main scanning direction (direction parallel to the rotation axis of the photosensitive drum 2), and the individual micro shutters are opened / closed according to recording signals (video data). Then, the light from the light source unit 7 arranged above the liquid crystal optical shutter 6 is transmitted and controlled by each micro-shutter, so that an optical image corresponding to an image to be recorded is irradiated, and the photosensitive drum 2 is irradiated with the light image. An electrostatic latent image is formed.
This latent image is developed by the developing device 8 to become a toner image,
The toner image is transferred by the transfer electrode 10 onto the transfer paper 9 fed by the paper feeding means (not shown).
トナー像の転写された転写紙９は図示しない定着手段に
よりトナー像が定着された後、装置外へ排出される。The transfer paper 9 onto which the toner image has been transferred is discharged to the outside of the apparatus after the toner image is fixed by a fixing unit (not shown).
又、転写紙９に転写されずに残留したトナーはクリーナ
１１により除去される。Further, the toner remaining on the transfer paper 9 without being transferred is removed by the cleaner 11.
第３図は液晶光シャッタ６の主走査方向と直交する面に
おける概略断面図である。FIG. 3 is a schematic sectional view of the liquid crystal optical shutter 6 in a plane orthogonal to the main scanning direction.
液晶光シャッタ６は上ガラス基板２１と下ガラス基板２
２の間に液晶剤２３を封入し、上ガラス基板２１の上面
及び下ガラス基板２２の下面に夫々偏光板２４、２５を
貼着して構成されている。上ガラス基板２１の下面には
透明導電層２６及び金属層２７よりなる２本の共通電極
が上述の主走査方向と平行に延在して設けられており、
下ガラス基板２２の上面には透明導電層２８及び金属層
２９よりなる多数の信号電極が上述の共通電極と略直交
方向に延在して設けられている。そして、上述の共通電
極と信号電極の交差対向部が個々のマイクロシャッタを
形成している。また、偏光板２５の下面には液晶光シャ
ッタを加熱するためのヒータ３０が取付けられており、
下ガラス基板の上面には測温素子であるサーミスタ３１
が取付けられている。The liquid crystal optical shutter 6 includes an upper glass substrate 21 and a lower glass substrate 2.
A liquid crystal agent 23 is enclosed between the two, and polarizing plates 24 and 25 are attached to the upper surface of the upper glass substrate 21 and the lower surface of the lower glass substrate 22, respectively. Two common electrodes composed of a transparent conductive layer 26 and a metal layer 27 are provided on the lower surface of the upper glass substrate 21 so as to extend parallel to the main scanning direction described above.
On the upper surface of the lower glass substrate 22, a large number of signal electrodes including a transparent conductive layer 28 and a metal layer 29 are provided so as to extend in a direction substantially orthogonal to the above-mentioned common electrode. Then, the intersecting facing portions of the common electrode and the signal electrode described above form individual micro shutters. Further, a heater 30 for heating the liquid crystal optical shutter is attached to the lower surface of the polarizing plate 25,
On the upper surface of the lower glass substrate, the thermistor 31 which is a temperature measuring element
Is installed.
第１図は光源部７の一部破断組立斜視図であり、第４図
はその要部断面図である。FIG. 1 is a partially cutaway perspective view of the light source unit 7, and FIG. 4 is a cross-sectional view of an essential part thereof.
断面が略円形の棒状の部材である光伝送ロッド４０は石
英ガラス、メタクリル樹脂等の高屈折率を有し、且つ透
明度の高い材料で構成されており、その長手方向が主走
査方向と平行になるように配設されている。また、その
周面の一部には光伝送ロッド４０の長手方向と平行方向
に延在する光拡散部４１が形成され、端面４０ａとは反
対側の端面には反射ミラー４２が取付けられている。The optical transmission rod 40, which is a rod-shaped member having a substantially circular cross section, is made of a material having a high refractive index such as quartz glass and methacrylic resin and having high transparency, and its longitudinal direction is parallel to the main scanning direction. It is arranged so that. Further, a light diffusing portion 41 extending in a direction parallel to the longitudinal direction of the light transmission rod 40 is formed on a part of the peripheral surface thereof, and a reflecting mirror 42 is attached to the end surface opposite to the end surface 40a. .
光拡散部４１は透明接着剤に硫酸バリウムやマグネシア
あるいはチタニア等の微紛体を分散混合したものを光伝
送ロッド４０の周面に塗布したものである。本考案の光
源である豆球形状のハロゲンランプ４３は内面が鏡面で
ある反射笠４４内に収容されており、ハロゲンランプ４
３の放出した光が光伝送ロッド４０の端面４０ａに入射
するように構成されている。The light diffusing section 41 is a transparent adhesive in which fine particles of barium sulfate, magnesia, titania, or the like are dispersed and mixed and applied to the peripheral surface of the optical transmission rod 40. The miniature bulb-shaped halogen lamp 43, which is the light source of the present invention, is housed in a reflection shade 44 whose inner surface is a mirror surface.
The light emitted from No. 3 is configured to enter the end surface 40a of the light transmission rod 40.
また、光伝送ロッド４０はロッドケーシング４５に囲繞
されており、このロッドケーシング４５には光伝送ロッ
ド４０の長手方向と平行なスリット４５ａが形成されて
いる。Further, the light transmission rod 40 is surrounded by a rod casing 45, and a slit 45 a parallel to the longitudinal direction of the light transmission rod 40 is formed in the rod casing 45.
光伝送ロッド４０の端面４０ａから入射した光は光伝送
ロッド４０内の全反射を繰り返しながら伝送され、且つ
伝送途中において光拡散部４１によって拡散反射され
る。拡散反射された光の一部は光伝送ロッド４０の周囲
から出射し、スリット４５ａを通過した光は液晶光シャ
ッタ６に照射される。らに、ハロゲンランプ４３と光伝
送ロッド４０の間にはフィルタ部材４６が設けられてい
る。フィルタ部材４６は可視光を透過し、且つ熱線を反
射するコールドフィルタ４６ａを支持部材４６で支持し
たものであり、装置本体に固設された支持台４７の軸４
７ａに回動可能に支承されている。また、フィルタ部材
４６のアーム部４６ｃはソレノイド４８のプランジャー
４８ａに連結されており、また、フィルタ部材４６はね
じりバネ４９により、反時計方向へ回動付勢されてい
る。ソレノイド４８が不作動のときには、フィルタ部材
４６はねじりバネ４９の付勢力により支持部材４６ｂが
支持台４７の係合部４７ｂと係合する位置に有り、この
とき、コールドフィルタ４６ａはハロゲンランプ４３と
光伝送ロッド４０の間に介在してる。（第４図参照）ソ
レノイド４８が作動したときには、フィルタ部材４６は
ねじりバネ４９の付勢力に抗して時計方向に回動し、コ
ールドフィルタ４６ａはハロゲンランプ４３と光伝送ロ
ッド４０の間から退避した位置に移動する。即ち、ソレ
ノイド４８が作動したとき、ハロゲンランプ４３の発し
た光は殆ど全てが光伝送ロッド４０に入射するのに対
し、ソレノイド４８が不作動のときにはハロゲンランプ
４３の発した光のうち可視光だけが光伝送ロッド４０に
入射し、熱線は光伝送ロッド４０に入射しないように構
成されている。以上の構成の記録装置の電源投入時にお
ける液晶光シャッタ６の温度制御について以下説明す
る。The light incident from the end surface 40a of the light transmission rod 40 is transmitted while repeating the total reflection in the light transmission rod 40, and is diffusely reflected by the light diffusing unit 41 during the transmission. Part of the diffusely reflected light is emitted from the periphery of the light transmission rod 40, and the light passing through the slit 45a is applied to the liquid crystal optical shutter 6. Furthermore, a filter member 46 is provided between the halogen lamp 43 and the light transmission rod 40. The filter member 46 is a cold filter 46a that transmits visible light and reflects heat rays, and is supported by a support member 46. The shaft 4 of a support base 47 fixed to the main body of the apparatus.
It is rotatably supported by 7a. The arm portion 46c of the filter member 46 is connected to the plunger 48a of the solenoid 48, and the filter member 46 is urged to rotate counterclockwise by a torsion spring 49. When the solenoid 48 is inoperative, the filter member 46 is in a position where the support member 46b engages with the engaging portion 47b of the support base 47 by the urging force of the torsion spring 49. At this time, the cold filter 46a operates as a halogen lamp 43. It is interposed between the optical transmission rods 40. (See FIG. 4) When the solenoid 48 operates, the filter member 46 rotates clockwise against the urging force of the torsion spring 49, and the cold filter 46a retracts from between the halogen lamp 43 and the light transmission rod 40. Move to the position. That is, when the solenoid 48 is operated, almost all the light emitted from the halogen lamp 43 is incident on the light transmission rod 40, whereas when the solenoid 48 is not operated, only visible light is emitted from the halogen lamp 43. Is incident on the light transmission rod 40, and the heat ray is not incident on the light transmission rod 40. The temperature control of the liquid crystal optical shutter 6 when the power of the recording apparatus having the above configuration is turned on will be described below.
第５図は電源投入後の温度制御のフローチャートであ
る。装置に電源が投入されると、ヒータ３０及びソレノ
イド４８をオンするとともにハロゲンランプ４３を点灯
する（ＳＴ１）。これにより、液晶光シャッタ６を下面
よりヒータ３０が加熱すると共に、光源部７より熱線を
含む光が液晶光シャッタ６の上面に照射される。この熱
線は偏光板２４や上ガラス基板により吸収されるもの
の、その一部は液晶剤２３や、該液晶剤に接触している
共通電極に達するので、液晶剤を急速に加熱することが
出来る。下ガラス基板２２の上面の温度が所定温度に達
したことをサーミスタ３１が検出すると（ＳＴ２）、ヒ
ータ３０、ソレノイド４８をオフし、ハロゲンランプも
消灯する。尚、このとき、上述の熱線により液晶剤２
３、上ガラス基板２１、偏光板２４等の部材も、略所定
温度に達しており、記録動作を行うことが可能であるの
で、図示しない全体制御部にＲＥＡＤＹ信号（光記録ヘ
ッド４が動作可能である旨の信号）を送出し、記録装置
は記録動作が可能な状態となる。FIG. 5 is a flow chart of temperature control after power is turned on. When the apparatus is powered on, the heater 30 and the solenoid 48 are turned on and the halogen lamp 43 is turned on (ST1). As a result, the heater 30 heats the liquid crystal optical shutter 6 from the lower surface, and the light including the heat rays is emitted from the light source unit 7 to the upper surface of the liquid crystal optical shutter 6. Although this heat ray is absorbed by the polarizing plate 24 and the upper glass substrate, part of it reaches the liquid crystal agent 23 and the common electrode in contact with the liquid crystal agent, so that the liquid crystal agent can be rapidly heated. When the thermistor 31 detects that the temperature of the upper surface of the lower glass substrate 22 has reached the predetermined temperature (ST2), the heater 30 and the solenoid 48 are turned off, and the halogen lamp is also turned off. At this time, the liquid crystal agent 2 is heated by the above-mentioned heat rays.
3, members such as the upper glass substrate 21, the polarizing plate 24, etc. have also reached a substantially predetermined temperature and can perform a recording operation. Therefore, a READY signal (the optical recording head 4 is operable to an unillustrated overall control unit Signal), and the recording apparatus is ready for recording operation.
一旦液晶光シャッタ６が所定温度に達した後は、急速に
加熱する必要は無く、上述の所定温度を維持できる程度
の加熱で充分であり、また、上述のオーバーシュートの
点からはむしろ急速な加熱は望ましくないので、温度制
御はヒータによる加熱のみで行っている。ＲＥＡＤＹ信
号送出後、液晶光シャッタ６の温度が所定温度よりも低
下したことを検出すると（ＳＴ４）ヒータをオンし（Ｓ
Ｔ５）、所定温度に達したことを検出すると（ＳＴ６）
ヒータをオフし（ＳＴ７）、装置の電源が断たれるまで
これ（ＳＴ４、ＳＴ５、ＳＴ６、ＳＴ７）を繰り返す。Once the liquid crystal optical shutter 6 has reached the predetermined temperature, it is not necessary to heat it rapidly, and it is sufficient to heat the liquid crystal shutter 6 to maintain the above-mentioned predetermined temperature, and it is rather rapid in view of the above-mentioned overshoot. Since heating is not desirable, temperature control is performed only by heating with a heater. After sending the READY signal, when it is detected that the temperature of the liquid crystal optical shutter 6 has dropped below a predetermined temperature (ST4), the heater is turned on (S4).
T5), when it is detected that the temperature has reached a predetermined temperature (ST6)
The heater is turned off (ST7), and this (ST4, ST5, ST6, ST7) is repeated until the power of the apparatus is cut off.
尚、ＲＥＡＤＹ信号の送出後、任意の時点で記録動作が
開始されるが、その際、ハロゲンランプは点灯するもの
の、ソレノイドはオフ状態を保つので、液晶光シャッタ
６に照射される光には熱線は含まれておらず、この光が
液晶光シャッタ６を加熱することはない。従って、連続
して記録動作を行っても、液晶光シャッタ６の温度が所
定温度を大幅に超えて、記録画像に悪影響を及ぼすこと
はない。The recording operation is started at an arbitrary time after the READY signal is sent. At that time, although the halogen lamp is turned on, the solenoid is kept in the off state. Is not included, and this light does not heat the liquid crystal optical shutter 6. Therefore, even if the recording operation is continuously performed, the temperature of the liquid crystal optical shutter 6 does not significantly exceed the predetermined temperature and the recorded image is not adversely affected.
以上、詳述したように本考案の記録装置によれば、記録
装置への電源投入後、液晶光シャッタが動作可能な温度
に達するまでは、光源の出射する光に含まれる熱線によ
って急速に加熱するので、待ち時間を少なくすることが
出来る。また、光源の熱線を利用して加熱するので、液
晶シャッタの内部まで均一に加熱することが出来、オー
バーシュートが発生することがない。As described above in detail, according to the recording apparatus of the present invention, after the recording apparatus is powered on, it is heated rapidly by the heat rays contained in the light emitted from the light source until the temperature at which the liquid crystal optical shutter can operate is reached. Therefore, the waiting time can be reduced. Further, since the heat rays of the light source are used for heating, the inside of the liquid crystal shutter can be heated uniformly and no overshoot occurs.
さらに、液晶光シャッタが一旦所定温度に達した後は発
熱量の少ないヒータによって加熱、保温制御するのでオ
ーバーシュートやアンダーシュートが発生することが無
く、安定して良好な記録画像を得ることができる。Further, after the liquid crystal optical shutter once reaches a predetermined temperature, heating and heat retention are controlled by a heater with a small amount of heat generation, so that an overshoot or undershoot does not occur, and a stable and good recorded image can be obtained. .
第１図は本考案の記録装置に用いた光源部の斜視図、 第２図は本考案の記録装置の概略構成図、 第３図は本考案の記録装置に用いた液晶光シャッタの断
面図、 第４図は本考案の記録装置に用いた光源部の要部断面
図、 第５図は本考案の記録装置に用いた液晶光シャッタの温
度制御手順を説明するためのタイムチャートである。 ２……感光ドラム、４……光記録ヘッド、６……液晶光
シャッタ、７……光源部、３０……ヒータ、 ３１……サーミスタ、３２……シール材、４０……光伝
送ロッド、４１……光拡散部、４３……ハロゲンラン
プ、４６……フィルタ部材、４６ａ……コールドフィル
タ、４８……ソレノイド。FIG. 1 is a perspective view of a light source unit used in the recording apparatus of the present invention, FIG. 2 is a schematic configuration diagram of the recording apparatus of the present invention, and FIG. 3 is a sectional view of a liquid crystal optical shutter used in the recording apparatus of the present invention. FIG. 4 is a sectional view of a main part of a light source section used in the recording apparatus of the present invention, and FIG. 5 is a time chart for explaining a temperature control procedure of a liquid crystal optical shutter used in the recording apparatus of the present invention. 2 ... Photosensitive drum, 4 ... Optical recording head, 6 ... Liquid crystal optical shutter, 7 ... Light source section, 30 ... Heater, 31 ... Thermistor, 32 ... Sealing material, 40 ... Optical transmission rod, 41 ...... Light diffuser, 43 ...... halogen lamp, 46 ...... filter member, 46a ...... cold filter, 48 ...... solenoid.
Claims (1)
マイクロシャッタを備えた液晶光シャッタと、該液晶光
シャッタに設けられ該液晶光シャッタの温度を検知する
温度検知素子と、前記液晶光シャッタに光を照射する光
源とを有し、前記マイクロシャッタの透過した光を感光
体に照射して記録動作を行う記録装置において、 前記光源は熱線を含む光を出射する光源であり、該光源
と前記液晶光シャッタとの間に介在する第１の位置と前
記光源と前記液晶光シャッタとの間より退避した第２の
位置とに移動制御される熱線カットフィルタとを有し、
装置本体の電源投入後前記液晶光シャッタが所定温度に
達するまでは前記光源を点灯させると共に前記熱線カッ
トフィルタを前記第２の位置に制御し、前記所定温度に
達した以後は、前記熱線カットフィルタを前記第１の位
置に制御する制御手段を備えたことを特徴とする記録装
置。1. A liquid crystal optical shutter having a large number of micro shutters which are opened and closed optically according to a recording signal, a temperature detection element provided on the liquid crystal optical shutter for detecting the temperature of the liquid crystal optical shutter, and the liquid crystal optical shutter. A light source for irradiating light to the photoconductor, and a recording device for irradiating the photoconductor with light transmitted through the microshutter to perform a recording operation, wherein the light source is a light source for emitting light including heat rays, and A heat ray cut filter that is controlled to move to a first position interposed between the liquid crystal optical shutter and a second position retracted from between the light source and the liquid crystal optical shutter;
After the power source of the apparatus main body is turned on, the light source is turned on and the heat ray cut filter is controlled to the second position until the liquid crystal optical shutter reaches a predetermined temperature, and after the predetermined temperature is reached, the heat ray cut filter is reached. A recording apparatus comprising: a control unit that controls the first position to the first position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8013387U JPH0614192Y2 (en) | 1987-05-27 | 1987-05-27 | Recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8013387U JPH0614192Y2 (en) | 1987-05-27 | 1987-05-27 | Recording device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63188631U JPS63188631U (en) | 1988-12-02 |
| JPH0614192Y2 true JPH0614192Y2 (en) | 1994-04-13 |
Family
ID=30930658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8013387U Expired - Lifetime JPH0614192Y2 (en) | 1987-05-27 | 1987-05-27 | Recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0614192Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3283424B2 (en) * | 1996-01-16 | 2002-05-20 | 三菱電機株式会社 | Projection display device |
-
1987
- 1987-05-27 JP JP8013387U patent/JPH0614192Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63188631U (en) | 1988-12-02 |
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