JPS6022116A - Foul cleaning device for optical sensor - Google Patents

Foul cleaning device for optical sensor

Info

Publication number
JPS6022116A
JPS6022116A JP58129388A JP12938883A JPS6022116A JP S6022116 A JPS6022116 A JP S6022116A JP 58129388 A JP58129388 A JP 58129388A JP 12938883 A JP12938883 A JP 12938883A JP S6022116 A JPS6022116 A JP S6022116A
Authority
JP
Japan
Prior art keywords
optical sensor
heat
heater
foul
voltage
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
Application number
JP58129388A
Other languages
Japanese (ja)
Inventor
Manabu Urata
学 浦田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP58129388A priority Critical patent/JPS6022116A/en
Publication of JPS6022116A publication Critical patent/JPS6022116A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0006—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means to keep optical surfaces clean, e.g. by preventing or removing dirt, stains, contamination, condensation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
    • 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
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • G03G15/2003—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat using heat

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PURPOSE:To heat and clean up sticking foul by providing a heater on the surface of heat-resisting glass on the detection surface of a optical sensor. CONSTITUTION:The light emitting element 1a and photodetecting element 1b of the reflective type optical sensor 1 are connected to power sources Vcc of +5 and +12V respective and a signal is outputted from the other terminal of the element 1b. The electrode of the ceramic heater 3 is grounded and also connected to a transistor (TR) Q1 with lines (l) through the heat-resisting glass 2 on the detection surface of the optical sensor 1, and the Q1 turns on the impress a +5V voltage to the heater 3. The on-off operation of the TRQ1 is so controlled on the basis of the detection output of the thermistor 6 of a fixing device 5 that the TRQ1 is turned on through a CPU4 for 60sec when the temperature of the device 5 is, for example, <=30 deg.C while a copying machine is powered on. Therefore, the +5V voltage is impressed to the heater 6 for 60sec to perform heating at about 500 deg.C and cleaning, thus removing foul.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は光センサの汚れを除去するのに用いる清掃装
置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cleaning device used to remove dirt from an optical sensor.

〔従来技術〕[Prior art]

一般に、光センサは種々の用途に用いられているが、そ
の使用環境については必ずしもその光センサの検出面表
面（二汚れが付着しにくいような状況下で用いられると
は限らず、汚れ易いような状況で使用される場合もある
。しかし、従来、光センサには検出面表面の汚れを取り
除くことができるような装置が設けられ【おらず、この
ため光センサの検出面が汚れた場合には、それが原因で
感度の低下、誤検知、誤動作が発生するという問題があ
る。In general, optical sensors are used for a variety of purposes, but the environment in which they are used does not necessarily mean that the sensing surface of the optical sensor (2) is used under conditions where contamination is difficult to adhere; However, conventionally, optical sensors have not been equipped with a device that can remove dirt from the detection surface of the optical sensor. This causes problems such as decreased sensitivity, false detections, and malfunctions.

〔発明の目的〕[Purpose of the invention]

この発明は上記の点に鑑みてなされたもので、光センサ
の検出面の汚れに起因する感度の低下等を防止できるよ
うにすることを目的とするものである。The present invention has been made in view of the above points, and an object of the present invention is to prevent a decrease in sensitivity caused by dirt on the detection surface of an optical sensor.

〔発明の構成〕[Structure of the invention]

この発明は、上記目的を達成するため、光センナの検出
面に耐熱ガラスを設けると共に、その耐熱ガラスの表面
に加熱ヒータを設け、これにより付着した汚れを加熱ク
リーニングして除去するようにしたものである。In order to achieve the above object, the present invention provides a heat-resistant glass on the detection surface of an optical sensor, and a heater is provided on the surface of the heat-resistant glass, thereby cleaning and removing attached dirt by heating. It is.

〔実施例〕〔Example〕

以下、この発明の一実施例を図面に基づいて説明する。 Hereinafter, one embodiment of the present invention will be described based on the drawings.

第１図（Ａ）〜の）はこの発明の一実施例を示すもので
、光センサとして反射型光センサを使用した場合を示す
。FIGS. 1(A) to 1(A) show an embodiment of the present invention, in which a reflective optical sensor is used as the optical sensor.

第１図において、（１）は発光部及び受光部を組み込ん
だ反射型光センサで、第１図囚に示すその検出面には、
まず所要の温度に耐え得る透明の耐熱ガラス（２）が同
図（Ｂ）、（Ｃ）のように貼り付けられ、そしてこの耐
熱ガラス（２）の表面に、同図の）に示すように、汚れ
を加熱クリーニングするための加熱ヒータとしてのセラ
ミックヒータ（３）をスリット状に取付けるようにする
。ＡＡ２０３磁器を応用したセラミックヒータ（３）は
印加電圧を一定にすれば一定温度が得られるので、上述
のように耐熱ガラス（２）及びセラミックヒータ（３）
から成る装置を反射型光センサ（１）の検出面に装着し
、セラミックヒータ（３）に所定の電圧を印加すれば、
表面及び周囲に付着した汚れが焼却クリーニングされて
除去される。このため、たとえ汚れ易い状況下で使用さ
れる場合でも簡単に汚れをクリーニングしてなくすこと
ができ、汚れに起因する反射型光センサ（１）の感度の
低下、誤検知、誤動作等の不都合を防止することができ
る。In Fig. 1, (1) is a reflective optical sensor incorporating a light emitting part and a light receiving part, and its detection surface shown in Fig.
First, a transparent heat-resistant glass (2) that can withstand the required temperature is pasted as shown in (B) and (C) in the same figure, and then on the surface of this heat-resistant glass (2) as shown in ) in the same figure. A ceramic heater (3) as a heater for heating and cleaning dirt is installed in a slit shape. Ceramic heater (3) using AA203 porcelain can obtain a constant temperature by keeping the applied voltage constant, so as mentioned above, heat-resistant glass (2) and ceramic heater (3)
If a device consisting of is attached to the detection surface of the reflective optical sensor (1) and a predetermined voltage is applied to the ceramic heater (3),
Dirt adhering to the surface and surrounding area is removed by incineration cleaning. Therefore, even if the device is used in a situation where it is easily contaminated, it can be easily cleaned and removed, thereby preventing inconveniences such as a decrease in the sensitivity of the reflective optical sensor (1), false detection, and malfunction caused by dirt. It can be prevented.

第２図は複写機における光センサに適用した一例を示す
もので、上記セラミックヒータ（３）への電圧の印加を
定着器の温度に応じて制御する場合を示す。FIG. 2 shows an example of application to an optical sensor in a copying machine, in which the application of voltage to the ceramic heater (3) is controlled in accordance with the temperature of the fixing device.

第２図において、反射型光センサ（１）の発光素子（ｌ
ａ）及び受光素子（ｌｂ）の各一端は夫々＋５Ｖの電源
′ｖｃｃ＋　＋１２Ｖの電源Ｖ。０に接続され、また発
光素子（ｌａ）、の他端はアースに接続されており、受
光素子（１ｂ）の他端から出力が取り出されるようにな
っている。この反射型光センサ（１）の検出面に耐熱ガ
ラス（２）を介して装着されたセラミックヒータ（３）
の−万の電極はリード線りを介してアースに接続され、
またその他方の電極はリード線ｋを介してトランジスタ
Ｑ＋のエミッタに接続され、そのコレクタが上記＋５ｖ
の電源Ｖｃ［、に接続されており、トランジスタＱ＋が
オンした場合にセラミックヒータ（３）に＋５Ｖの電圧
が印加されるようになっている。このトランジスタＱ０
のオン、オフはメインＣＰＴＪ（４）から送出される制
御信号により制御されるようになっており、このメイン
ＣＰＵ（４１は定着器（５）における定着器温度検知回
路を構成するサーミスタ（６）からの検知出力に基づい
て、複写機のパワーオン時、定着器（５）の温度が例え
ば３０℃以下の時に例えば６０秒間上記トランジスタＱ
１をオンさせるよう制御するようになっている。In FIG. 2, a light emitting element (l) of a reflective optical sensor (1) is shown.
A) and one end of the light receiving element (lb) are connected to a +5V power supply 'vcc+ and a +12V power supply V, respectively. 0, and the other end of the light emitting element (la) is connected to ground, so that the output is taken out from the other end of the light receiving element (1b). A ceramic heater (3) attached to the detection surface of this reflective optical sensor (1) via heat-resistant glass (2)
The -10,000 electrodes are connected to ground through lead wires,
The other electrode is connected to the emitter of the transistor Q+ via the lead wire k, and its collector is connected to the above +5V.
The ceramic heater (3) is connected to the power supply Vc[, and when the transistor Q+ is turned on, a voltage of +5V is applied to the ceramic heater (3). This transistor Q0
The on/off state is controlled by a control signal sent from the main CPTJ (4), and this main CPU (41 is a thermistor (6) constituting a fuser temperature detection circuit in the fuser (5)). When the copying machine is powered on, the transistor Q
1 is turned on.

従って、今、複写機のパワーオン時に定着器（５）の温
度が８０℃以下の場合には、トランジスタＱ１がオンせ
しめられ、セラミックヒータ（３）には６０秒間＋５Ｖ
の電圧が印加されるので、この間約５００℃の加熱クリ
ーニングを行ない、汚れを除去することができ、反射型
光センサ（１）の感度低下等を招くおそれがなく、複写
機のように浮遊トナー等の発生し易い状況の場合でも反
射型センサ（１）の所要の機能が汚れによって阻害され
るということを防止することができる。Therefore, if the temperature of the fuser (5) is below 80°C when the copying machine is powered on, the transistor Q1 is turned on and the ceramic heater (3) is supplied with +5V for 60 seconds.
Since a voltage of Even in situations where this is likely to occur, it is possible to prevent the necessary functions of the reflective sensor (1) from being obstructed by dirt.

〔発明の効果〕〔Effect of the invention〕

以上のように、この発明は、光センサに付着する汚れを
加熱クリーニングして除去することができるので、感度
の低下、誤検知、誤動作等の発生を防止することができ
、特：二汚れ易い状況下で使用する光センナに適用して
簡単な構成で常に光センサの所要の機能を維持すること
カーできる等の効第１図はこの発明の一実施例の構成を
示す構成図、第２図は複写機の光センサζ二利用した場
合の一例を示す回路図である。As described above, the present invention can remove dirt adhering to the optical sensor by heating and cleaning it, thereby preventing a decrease in sensitivity, false detection, malfunction, etc. When applied to the optical sensor used under various conditions, it is possible to always maintain the required functions of the optical sensor with a simple configuration. The figure is a circuit diagram showing an example of a case where the optical sensor ζ2 of a copying machine is used.

符号説明 （１）・・・・・・反射型光センサ　（２）・・・・・
・耐熱ガラス（３）・・・・・・セラミックヒータCode explanation (1)...Reflective optical sensor (2)...
・Heat-resistant glass (3)・・・Ceramic heater

Claims (1)

【特許請求の範囲】[Claims] 光センサの検出面に設けた耐熱ガラスと、この耐熱ガラ
スの表面に設けられた、汚れを加熱クリーニングするた
めの加熱ヒータとを有することを特徴とする光センサの
汚れ清掃装置。A dirt cleaning device for an optical sensor, comprising a heat-resistant glass provided on the detection surface of the optical sensor, and a heating heater provided on the surface of the heat-resistant glass for heating and cleaning dirt.
JP58129388A 1983-07-18 1983-07-18 Foul cleaning device for optical sensor Pending JPS6022116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58129388A JPS6022116A (en) 1983-07-18 1983-07-18 Foul cleaning device for optical sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58129388A JPS6022116A (en) 1983-07-18 1983-07-18 Foul cleaning device for optical sensor

Publications (1)

Publication Number Publication Date
JPS6022116A true JPS6022116A (en) 1985-02-04

Family

ID=15008340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58129388A Pending JPS6022116A (en) 1983-07-18 1983-07-18 Foul cleaning device for optical sensor

Country Status (1)

Country Link
JP (1) JPS6022116A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63262101A (en) * 1987-04-21 1988-10-28 小川　泰弘 Canvas shoes and production thereof
WO2004081511A1 (en) * 2003-03-13 2004-09-23 Kistler Holding Ag Self-cleaning optical sensor
DE102010003413A1 (en) * 2010-03-29 2011-09-29 Von Ardenne Anlagentechnik Gmbh Method for cleaning optical position measuring system used in determining position of glass substrate during coating in physical vapor deposition coating plant, involves performing local heat regulation to control temperature of sensor head

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63262101A (en) * 1987-04-21 1988-10-28 小川　泰弘 Canvas shoes and production thereof
WO2004081511A1 (en) * 2003-03-13 2004-09-23 Kistler Holding Ag Self-cleaning optical sensor
DE102010003413A1 (en) * 2010-03-29 2011-09-29 Von Ardenne Anlagentechnik Gmbh Method for cleaning optical position measuring system used in determining position of glass substrate during coating in physical vapor deposition coating plant, involves performing local heat regulation to control temperature of sensor head
US8605292B2 (en) 2010-03-29 2013-12-10 Von Ardenne Anlagentechnik Gmbh Method and device for cleaning an optical position measurement system for substrates in a coating installation
DE102010003413B4 (en) * 2010-03-29 2016-12-22 Von Ardenne Gmbh Method for cleaning an optical position measuring system, optical position measuring system and coating system

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