JPS5722265A - Exposure control device for copying machine - Google Patents

Exposure control device for copying machine

Info

Publication number
JPS5722265A
JPS5722265A JP9720180A JP9720180A JPS5722265A JP S5722265 A JPS5722265 A JP S5722265A JP 9720180 A JP9720180 A JP 9720180A JP 9720180 A JP9720180 A JP 9720180A JP S5722265 A JPS5722265 A JP S5722265A
Authority
JP
Japan
Prior art keywords
circuit
output voltage
voltage
limiting
output
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
JP9720180A
Other languages
English (en)
Japanese (ja)
Other versions
JPS639207B2 (enrdf_load_stackoverflow
Inventor
Takeshi Nozaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9720180A priority Critical patent/JPS5722265A/ja
Publication of JPS5722265A publication Critical patent/JPS5722265A/ja
Publication of JPS639207B2 publication Critical patent/JPS639207B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Control Or Security For Electrophotography (AREA)
JP9720180A 1980-07-16 1980-07-16 Exposure control device for copying machine Granted JPS5722265A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9720180A JPS5722265A (en) 1980-07-16 1980-07-16 Exposure control device for copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9720180A JPS5722265A (en) 1980-07-16 1980-07-16 Exposure control device for copying machine

Publications (2)

Publication Number Publication Date
JPS5722265A true JPS5722265A (en) 1982-02-05
JPS639207B2 JPS639207B2 (enrdf_load_stackoverflow) 1988-02-26

Family

ID=14185986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9720180A Granted JPS5722265A (en) 1980-07-16 1980-07-16 Exposure control device for copying machine

Country Status (1)

Country Link
JP (1) JPS5722265A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031132A (ja) * 1983-07-30 1985-02-16 Mita Ind Co Ltd 自動露光装置
JPS6035752A (ja) * 1983-08-06 1985-02-23 Canon Inc 画像制御装置
JPS60216347A (ja) * 1984-03-23 1985-10-29 Minolta Camera Co Ltd 電子写真複写機の自動露光装置
JPS61189579A (ja) * 1985-02-19 1986-08-23 Sharp Corp 複写機の露光調整装置
JPS61190328A (ja) * 1985-02-20 1986-08-25 Fuji Xerox Co Ltd 露光装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5182630A (enrdf_load_stackoverflow) * 1975-01-16 1976-07-20 Minolta Camera Kk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5182630A (enrdf_load_stackoverflow) * 1975-01-16 1976-07-20 Minolta Camera Kk

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6031132A (ja) * 1983-07-30 1985-02-16 Mita Ind Co Ltd 自動露光装置
JPS6035752A (ja) * 1983-08-06 1985-02-23 Canon Inc 画像制御装置
JPS60216347A (ja) * 1984-03-23 1985-10-29 Minolta Camera Co Ltd 電子写真複写機の自動露光装置
JPS61189579A (ja) * 1985-02-19 1986-08-23 Sharp Corp 複写機の露光調整装置
JPS61190328A (ja) * 1985-02-20 1986-08-25 Fuji Xerox Co Ltd 露光装置

Also Published As

Publication number Publication date
JPS639207B2 (enrdf_load_stackoverflow) 1988-02-26

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