JPS58152640U - Bias voltage variable device for electronic copying machines - Google Patents

Bias voltage variable device for electronic copying machines

Info

Publication number
JPS58152640U
JPS58152640U JP4987982U JP4987982U JPS58152640U JP S58152640 U JPS58152640 U JP S58152640U JP 4987982 U JP4987982 U JP 4987982U JP 4987982 U JP4987982 U JP 4987982U JP S58152640 U JPS58152640 U JP S58152640U
Authority
JP
Japan
Prior art keywords
photoresponsive
bias voltage
variable device
electronic copying
constant 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
JP4987982U
Other languages
Japanese (ja)
Inventor
中野　世志登
Original Assignee
カシオ計算機株式会社
アイ・デイ株式会社
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 カシオ計算機株式会社, アイ・デイ株式会社 filed Critical カシオ計算機株式会社
Priority to JP4987982U priority Critical patent/JPS58152640U/en
Publication of JPS58152640U publication Critical patent/JPS58152640U/en
Pending legal-status Critical Current

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  • Developing For Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は、従来例を示す回路構成図、第２図はこの考案
の一実施例を示す回路構成図である。 １・・・・・・定電圧電源回路、１７・・・・・・光応
答抵抗素子、１８・・・・・・トランジスタ、１９・・
・・・・制御回路、２０・・・・・・発光素子、２２・
・・・・・ボリューム。FIG. 1 is a circuit diagram showing a conventional example, and FIG. 2 is a circuit diagram showing an embodiment of the invention. DESCRIPTION OF SYMBOLS 1... Constant voltage power supply circuit, 17... Photoresponsive resistance element, 18... Transistor, 19...
... Control circuit, 20 ... Light emitting element, 22.
·····volume.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 定電圧を出力する定電圧電源回路と、この定電圧電源回
路の出力側に並列に設けられた光応答抵抗素子と、この
光応答抵抗素子と並列に設けられ、複写動作終了後入力
される制御信号にしたがって前記光応答抵抗素子を短絡
するスイッチング回路と、前記光応答抵抗素子に光を供
給する発光素子と、この発光素子の光量を可変する手段
とを具備してなる電子複写機のバイアス電圧可変装置。A constant voltage power supply circuit that outputs a constant voltage, a photoresponsive resistance element provided in parallel on the output side of this constant voltage power supply circuit, and a control that is provided in parallel with this photoresponsive resistance element and is input after the copying operation is completed. A bias voltage for an electronic copying machine comprising: a switching circuit that short-circuits the photoresponsive resistive element according to a signal; a light emitting element that supplies light to the photoresponsive resistor; and means for varying the amount of light from the light emitting element. Variable device.
JP4987982U 1982-04-08 1982-04-08 Bias voltage variable device for electronic copying machines Pending JPS58152640U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4987982U JPS58152640U (en) 1982-04-08 1982-04-08 Bias voltage variable device for electronic copying machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4987982U JPS58152640U (en) 1982-04-08 1982-04-08 Bias voltage variable device for electronic copying machines

Publications (1)

Publication Number Publication Date
JPS58152640U true JPS58152640U (en) 1983-10-13

Family

ID=30060705

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4987982U Pending JPS58152640U (en) 1982-04-08 1982-04-08 Bias voltage variable device for electronic copying machines

Country Status (1)

Country Link
JP (1) JPS58152640U (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50140138A (en) * 1974-04-30 1975-11-10
JPS5250342U (en) * 1975-10-08 1977-04-09
JPS5246463A (en) * 1975-10-09 1977-04-13 Omron Tateisi Electronics Co Power controlling device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50140138A (en) * 1974-04-30 1975-11-10
JPS5250342U (en) * 1975-10-08 1977-04-09
JPS5246463A (en) * 1975-10-09 1977-04-13 Omron Tateisi Electronics Co Power controlling device

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