JPS6017438A - 露光制御装置 - Google Patents

露光制御装置

Info

Publication number
JPS6017438A
JPS6017438A JP58125945A JP12594583A JPS6017438A JP S6017438 A JPS6017438 A JP S6017438A JP 58125945 A JP58125945 A JP 58125945A JP 12594583 A JP12594583 A JP 12594583A JP S6017438 A JPS6017438 A JP S6017438A
Authority
JP
Japan
Prior art keywords
voltage
circuit
magnification
exposure
resistor
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
JP58125945A
Other languages
English (en)
Japanese (ja)
Inventor
Takeshi Mitsuhayashi
三林　武
Hidetsugu Ojida
王子田　英嗣
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
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 filed Critical Toshiba Corp
Priority to JP58125945A priority Critical patent/JPS6017438A/ja
Priority to US06/628,983 priority patent/US4573787A/en
Priority to DE3425572A priority patent/DE3425572C2/de
Publication of JPS6017438A publication Critical patent/JPS6017438A/ja
Pending 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
    • G03G15/041—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 variable magnification
    • G03G15/0415—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 variable magnification and means for controlling illumination or exposure
    • 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
    • G03G15/041—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 variable magnification

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Variable Magnification In Projection-Type Copying Machines (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
JP58125945A 1983-07-11 1983-07-11 露光制御装置 Pending JPS6017438A (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP58125945A JPS6017438A (ja) 1983-07-11 1983-07-11 露光制御装置
US06/628,983 US4573787A (en) 1983-07-11 1984-07-09 Exposure lamp control for image forming apparatus
DE3425572A DE3425572C2 (de) 1983-07-11 1984-07-11 Kopiergerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58125945A JPS6017438A (ja) 1983-07-11 1983-07-11 露光制御装置

Publications (1)

Publication Number Publication Date
JPS6017438A true JPS6017438A (ja) 1985-01-29

Family

ID=14922857

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58125945A Pending JPS6017438A (ja) 1983-07-11 1983-07-11 露光制御装置

Country Status (3)

Country Link
US (1) US4573787A (US07943777-20110517-C00090.png)
JP (1) JPS6017438A (US07943777-20110517-C00090.png)
DE (1) DE3425572C2 (US07943777-20110517-C00090.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6123140A (ja) * 1984-07-12 1986-01-31 Fuji Xerox Co Ltd 露光ランプの制御装置
JPS6398539U (US07943777-20110517-C00090.png) * 1986-12-16 1988-06-25
US5043766A (en) * 1988-08-05 1991-08-27 Kabushiki Kaisha Toshiba Exposure control apparatus for variable magnification copying machine

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709250A (en) * 1985-02-19 1987-11-24 Canon Kabushiki Kaisha Image forming apparatus
JPS61189579A (ja) * 1985-02-19 1986-08-23 Sharp Corp 複写機の露光調整装置
US4740810A (en) * 1985-07-09 1988-04-26 Minolta Camera Kabushiki Kaisha Copying apparatus
US4819029A (en) * 1986-01-29 1989-04-04 Minolta Camera Kabushiki Kaisha Copying machine capable of producing a copy with a filing margin
JPS63137224A (ja) * 1986-11-28 1988-06-09 Minolta Camera Co Ltd 自動露光装置
JPS6477069A (en) * 1987-05-09 1989-03-23 Ricoh Kk Density control system for digital copying machine
JP2685816B2 (ja) * 1988-06-30 1997-12-03 株式会社東芝 光量制御装置
JP2673072B2 (ja) * 1991-12-17 1997-11-05 三田工業株式会社 画像形成装置
JPH0698094A (ja) * 1992-09-14 1994-04-08 Toshiba Corp 画像形成装置
US5596444A (en) * 1993-03-02 1997-01-21 Minolta Camera Kabushiki Kaisha Optical apparatus having laser beam diameter variable according to image data
JP3410190B2 (ja) * 1993-12-29 2003-05-26 株式会社東芝 画像形成装置及び原稿読取り方法
TWI843322B (zh) * 2022-12-08 2024-05-21 明泰科技股份有限公司 能以數位式進行直流風扇調速的電路系統

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619038A (en) * 1979-07-24 1981-02-23 Ricoh Co Ltd Control system of copy density in copying machine having variable power function
JPS5824170A (ja) * 1981-08-05 1983-02-14 Fuji Xerox Co Ltd 複写機のランプ印加電圧設定方法
JPS5864798A (ja) * 1981-10-14 1983-04-18 富士ゼロックス株式会社 ランプ電圧制御装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2039336A1 (de) * 1969-08-13 1971-02-25 Minolta Camera Kk Vorrichtung zur Einstellung der Belichtungsmenge in einem Kopiergeraet
GB1436899A (en) * 1973-05-23 1976-05-26 Xerox Corp Document copying apparatus
DE2807317C3 (de) * 1977-02-23 1982-02-11 Ricoh Co., Ltd., Tokyo Verfahren zur Einhaltung der Optimalbedingungen bei der Elektrofotografie
JPS5436725A (en) * 1977-08-26 1979-03-17 Ricoh Co Ltd Zerographic copying method
US4354758A (en) * 1980-01-31 1982-10-19 Tokyo Shibaura Denki Kabushiki Kaisha Exposure control device for a photocopier
GB2088572A (en) * 1980-12-02 1982-06-09 Gestetner Mfg Ltd Variable speed scan drive
JPS57173859A (en) * 1981-04-20 1982-10-26 Canon Inc Exposure quantity controller of color picture forming device
US4474460A (en) * 1981-07-16 1984-10-02 Fuji Xerox Company Limited Microfilm copying machine
JPS5823023A (ja) * 1981-08-03 1983-02-10 Fuji Xerox Co Ltd 自動露光制御方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619038A (en) * 1979-07-24 1981-02-23 Ricoh Co Ltd Control system of copy density in copying machine having variable power function
JPS5824170A (ja) * 1981-08-05 1983-02-14 Fuji Xerox Co Ltd 複写機のランプ印加電圧設定方法
JPS5864798A (ja) * 1981-10-14 1983-04-18 富士ゼロックス株式会社 ランプ電圧制御装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6123140A (ja) * 1984-07-12 1986-01-31 Fuji Xerox Co Ltd 露光ランプの制御装置
JPS6398539U (US07943777-20110517-C00090.png) * 1986-12-16 1988-06-25
JPH0622838Y2 (ja) * 1986-12-16 1994-06-15 富士ゼロックス株式会社 複写機の光量制御装置
US5043766A (en) * 1988-08-05 1991-08-27 Kabushiki Kaisha Toshiba Exposure control apparatus for variable magnification copying machine

Also Published As

Publication number Publication date
DE3425572C2 (de) 1987-02-26
DE3425572A1 (de) 1985-01-31
US4573787A (en) 1986-03-04

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