JPS6269178U - - Google Patents

Info

Publication number
JPS6269178U
JPS6269178U JP16079585U JP16079585U JPS6269178U JP S6269178 U JPS6269178 U JP S6269178U JP 16079585 U JP16079585 U JP 16079585U JP 16079585 U JP16079585 U JP 16079585U JP S6269178 U JPS6269178 U JP S6269178U
Authority
JP
Japan
Prior art keywords
object detection
limit value
detection device
comparison circuit
set 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.)
Granted
Application number
JP16079585U
Other languages
Japanese (ja)
Other versions
JPH043271Y2 (en
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 filed Critical
Priority to JP1985160795U priority Critical patent/JPH043271Y2/ja
Publication of JPS6269178U publication Critical patent/JPS6269178U/ja
Application granted granted Critical
Publication of JPH043271Y2 publication Critical patent/JPH043271Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Holders For Sensitive Materials And Originals (AREA)
  • Paper Feeding For Electrophotography (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案物体検出装置を適用した複写機
の斜視図、第２図はセンサ取付部を示す一部の拡
大斜視図、第３図は本考案物体検出装置の実施例
を示す回路図、第４図、第５図は本考案物体検出
装置の他の適用例を示す概要図、第６図は従来の
物体検出装置の回路図、第７図は比較回路の印加
電圧の説明図である。 １……物体検出回路、２１〜２ｎ……比較回路
、３１〜３ｎ……表示装置、９１〜９ｎ……設定
電圧調整手段（可変抵抗）、２０〜２２……しき
い値選択手段（切換えスイツチ、抵抗）。 Fig. 1 is a perspective view of a copying machine to which the object detection device of the present invention is applied, Fig. 2 is an enlarged perspective view of a portion of the sensor mounting section, and Fig. 3 is a circuit diagram showing an embodiment of the object detection device of the present invention. , FIGS. 4 and 5 are schematic diagrams showing other application examples of the object detection device of the present invention, FIG. 6 is a circuit diagram of a conventional object detection device, and FIG. 7 is an explanatory diagram of the applied voltage of the comparison circuit. be. DESCRIPTION OF SYMBOLS 1...Object detection circuit , 21-2n ...Comparison circuit, 31-3n ...Display device, 91-9n ...Setting voltage adjustment means ( variable resistor ) , 20-22...Threshold Value selection means (switch, resistor).

Claims (1)

【実用新案登録請求の範囲】 (1) 光に感応するセンサを用いた物体検出によ
り出力電圧を変化させる物体検出回路と、この物
体検出回路の出力電圧と基準電圧とを比較する比
較回路と、この比較回路の出力に応じて、点灯、
消灯が制御される表示装置とを備えた物体検出装
置において、前記物体検出回路の設定電圧の上限
値と下限値を選択的に前記比較回路に与えるしき
い値選択手段を設け、このしきい値選択手段で前
記比較回路に前記上限値または下限値を与え、前
記表示装置の表示状態を見ながら前記設定電圧調
整手段で前記物体検出回路の設定電圧を調整する
ように構成したことを特徴とする物体検出装置。 (2) 設定電圧調整手段が可変抵抗であることを
特徴とする前記実用新案登録請求の範囲第(1)項
記載の物体検出装置。 (3) しきい値選択手段が上限値を決める抵抗お
よび下限値を決める抵抗と、両抵抗を切換える切
換えスイツチとで構成されていることを特徴とす
る前記実用新案登録請求の範囲第(1)項記載の物
体検出装置。[Claims for Utility Model Registration] (1) An object detection circuit that changes the output voltage by detecting an object using a sensor sensitive to light, and a comparison circuit that compares the output voltage of this object detection circuit with a reference voltage; Lights up or lights up depending on the output of this comparison circuit.
In the object detection device comprising a display device in which turning off is controlled, threshold selection means is provided for selectively applying an upper limit value and a lower limit value of a set voltage of the object detection circuit to the comparison circuit, It is characterized in that the selection means gives the upper limit value or the lower limit value to the comparison circuit, and the set voltage adjustment means adjusts the set voltage of the object detection circuit while checking the display state of the display device. Object detection device. (2) The object detection device according to claim (1) of the utility model registration, wherein the set voltage adjusting means is a variable resistor. (3) Claim No. (1) of the above-mentioned utility model registration characterized in that the threshold selection means is composed of a resistor that determines an upper limit value, a resistor that determines a lower limit value, and a changeover switch that switches between the two resistors. Object detection device described in section.
JP1985160795U 1985-10-22 1985-10-22 Expired JPH043271Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985160795U JPH043271Y2 (en) 1985-10-22 1985-10-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985160795U JPH043271Y2 (en) 1985-10-22 1985-10-22

Publications (2)

Publication Number Publication Date
JPS6269178U true JPS6269178U (en) 1987-04-30
JPH043271Y2 JPH043271Y2 (en) 1992-02-03

Family

ID=31086511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985160795U Expired JPH043271Y2 (en) 1985-10-22 1985-10-22

Country Status (1)

Country Link
JP (1) JPH043271Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0267918A (en) * 1988-09-02 1990-03-07 Oki Electric Ind Co Ltd Automatic adjusting circuit and automatic adjusting method of optical medium detecting device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57173049U (en) * 1981-04-28 1982-10-30
JPS5859475A (en) * 1981-10-05 1983-04-08 Ricoh Co Ltd Detecting device for jam around photosensitive drum

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57173049U (en) * 1981-04-28 1982-10-30
JPS5859475A (en) * 1981-10-05 1983-04-08 Ricoh Co Ltd Detecting device for jam around photosensitive drum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0267918A (en) * 1988-09-02 1990-03-07 Oki Electric Ind Co Ltd Automatic adjusting circuit and automatic adjusting method of optical medium detecting device

Also Published As

Publication number Publication date
JPH043271Y2 (en) 1992-02-03

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