JPS5328428A - Light control for electrophoto graphic copier - Google Patents

Light control for electrophoto graphic copier

Info

Publication number
JPS5328428A
JPS5328428A JP10085976A JP10085976A JPS5328428A JP S5328428 A JPS5328428 A JP S5328428A JP 10085976 A JP10085976 A JP 10085976A JP 10085976 A JP10085976 A JP 10085976A JP S5328428 A JPS5328428 A JP S5328428A
Authority
JP
Japan
Prior art keywords
light control
light
electrophoto graphic
copier
graphic copier
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
JP10085976A
Other languages
English (en)
Japanese (ja)
Inventor
Manabu Mochizuki
Hiroharu Suzuki
Hajime Koyama
Teruyuki Onuma
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP10085976A priority Critical patent/JPS5328428A/ja
Priority to GB34854/77A priority patent/GB1584424A/en
Priority to US05/827,055 priority patent/US4193679A/en
Priority to CA285,354A priority patent/CA1105983A/en
Priority to FR7725650A priority patent/FR2363137A1/fr
Priority to DE19772738017 priority patent/DE2738017A1/de
Publication of JPS5328428A publication Critical patent/JPS5328428A/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
    • G03G15/043—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)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
JP10085976A 1976-08-24 1976-08-24 Light control for electrophoto graphic copier Pending JPS5328428A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP10085976A JPS5328428A (en) 1976-08-24 1976-08-24 Light control for electrophoto graphic copier
GB34854/77A GB1584424A (en) 1976-08-24 1977-08-19 Electrographic apparatus comprising imaging system
US05/827,055 US4193679A (en) 1976-08-24 1977-08-23 Electrophotographic apparatus comprising improved imaging system
CA285,354A CA1105983A (en) 1976-08-24 1977-08-23 Electrophotographic apparatus comprising improved imaging system
FR7725650A FR2363137A1 (fr) 1976-08-24 1977-08-23 Appareil electrophotographique comprenant un systeme perfectionne de formation d'image
DE19772738017 DE2738017A1 (de) 1976-08-24 1977-08-23 Elektrophotographische einrichtung mit einem abbildungssystem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10085976A JPS5328428A (en) 1976-08-24 1976-08-24 Light control for electrophoto graphic copier

Publications (1)

Publication Number Publication Date
JPS5328428A true JPS5328428A (en) 1978-03-16

Family

ID=14285028

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10085976A Pending JPS5328428A (en) 1976-08-24 1976-08-24 Light control for electrophoto graphic copier

Country Status (6)

Country Link
US (1) US4193679A (en:Method)
JP (1) JPS5328428A (en:Method)
CA (1) CA1105983A (en:Method)
DE (1) DE2738017A1 (en:Method)
FR (1) FR2363137A1 (en:Method)
GB (1) GB1584424A (en:Method)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS559545A (en) * 1978-07-06 1980-01-23 Canon Inc Exposure control device
JPS5979240A (ja) * 1982-10-29 1984-05-08 Hitachi Ltd 複写機の露光制御装置

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4474453A (en) * 1979-04-18 1984-10-02 Ricoh Company, Ltd. Electrostatic copying apparatus
US4316665A (en) * 1979-12-06 1982-02-23 Canon Kabushiki Kaisha Projection device
JPS56156841A (en) * 1980-05-09 1981-12-03 Toshiba Corp Electronic copying machine
DE3035550A1 (de) * 1980-09-20 1982-04-29 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Belichtungseinheit
US4382672A (en) * 1980-09-29 1983-05-10 Xerox Corporation Illumination arrangement for elimination of gray borders in copying device
US4345833A (en) * 1981-02-23 1982-08-24 American Optical Corporation Lens array
US4462662A (en) * 1981-06-15 1984-07-31 Xerox Corporation Imaging system utilizing a gradient index lens array compensated for non-uniform object illumination
JPS5971342U (ja) * 1982-11-04 1984-05-15 シャープ株式会社 光量調整装置
US4494855A (en) * 1984-03-07 1985-01-22 Colwill Richard H Synchronous copying and collating system
JPS61149972A (ja) * 1984-12-25 1986-07-08 Ricoh Co Ltd カラ−複写方法
JPS63259533A (ja) * 1987-04-16 1988-10-26 Fuji Photo Film Co Ltd 画像記録装置
US4801978A (en) * 1987-12-30 1989-01-31 Xerox Corporation Image bar printer compensated for vibration-generated scan line errors
JP2524126Y2 (ja) * 1991-05-17 1997-01-29 セイコープレシジョン株式会社 インスタント写真式複写装置
US5303000A (en) * 1991-06-07 1994-04-12 Agfa-Gevaert Aktiengesellschaft Method of and apparatus for ascertaining the characteristics of shorter and longer sections of photographic material
US5450157A (en) * 1993-12-06 1995-09-12 Xerox Corporation Imaging system using a gradient index lens array with improved depth of focus
US7035575B2 (en) * 2003-04-16 2006-04-25 Ricoh Company, Ltd. Developing device, image forming apparatus, and process cartridge
JP4393900B2 (ja) * 2003-06-26 2010-01-06 株式会社リコー 現像装置、画像形成装置、プロセスカートリッジ及び現像方法
JP4672243B2 (ja) * 2003-06-27 2011-04-20 株式会社リコー 現像装置及び画像形成装置
US7162187B2 (en) * 2003-06-30 2007-01-09 Ricoh Company, Ltd. Image forming apparatus and image forming method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423153A (en) * 1966-01-14 1969-01-21 American Photocopy Equip Co Control of light level in photocopy machine
US3409354A (en) * 1966-06-08 1968-11-05 Eastman Kodak Co Optical systems with axial mirrors
US3815992A (en) * 1969-10-30 1974-06-11 Minolta Camera Kk Projection type duplicator
JPS511970B1 (en:Method) * 1969-12-12 1976-01-22
US3742295A (en) * 1970-03-30 1973-06-26 Minolta Camera Kk Lighting system in copying apparatus
US3764210A (en) * 1970-11-03 1973-10-09 Minolta Camera Kk A lighting system for a halogen lamp in a duplicating machine
US3731611A (en) * 1972-02-11 1973-05-08 Copystatics Manuf Corp Exposure control system for reproduction devices
JPS5068583U (en:Method) * 1973-10-22 1975-06-18
JPS5744350Y2 (en:Method) * 1973-11-07 1982-09-30

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS559545A (en) * 1978-07-06 1980-01-23 Canon Inc Exposure control device
JPS5979240A (ja) * 1982-10-29 1984-05-08 Hitachi Ltd 複写機の露光制御装置

Also Published As

Publication number Publication date
DE2738017A1 (de) 1978-03-02
US4193679A (en) 1980-03-18
FR2363137A1 (fr) 1978-03-24
GB1584424A (en) 1981-02-11
CA1105983A (en) 1981-07-28
FR2363137B1 (en:Method) 1982-03-12

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