JPS559545A - Exposure control device - Google Patents

Exposure control device

Info

Publication number
JPS559545A
JPS559545A JP8227478A JP8227478A JPS559545A JP S559545 A JPS559545 A JP S559545A JP 8227478 A JP8227478 A JP 8227478A JP 8227478 A JP8227478 A JP 8227478A JP S559545 A JPS559545 A JP S559545A
Authority
JP
Japan
Prior art keywords
light quantity
variable resistor
exposure
time
control
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
JP8227478A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0210932B2 (enrdf_load_stackoverflow
Inventor
Masahito Ishida
Katsuyoshi Maejima
Hisashi Sakamaki
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP8227478A priority Critical patent/JPS559545A/ja
Priority to GB7922040A priority patent/GB2024438B/en
Priority to US06/053,088 priority patent/US4320964A/en
Priority to DE19792926360 priority patent/DE2926360A1/de
Priority to DE2954647A priority patent/DE2954647C2/de
Publication of JPS559545A publication Critical patent/JPS559545A/ja
Priority to GB08137972A priority patent/GB2108688B/en
Priority to GB08137971A priority patent/GB2108687B/en
Publication of JPH0210932B2 publication Critical patent/JPH0210932B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
JP8227478A 1978-06-30 1978-07-06 Exposure control device Granted JPS559545A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP8227478A JPS559545A (en) 1978-07-06 1978-07-06 Exposure control device
GB7922040A GB2024438B (en) 1978-06-30 1979-06-25 Electrophotographic copier
US06/053,088 US4320964A (en) 1978-06-30 1979-06-28 Image formation apparatus
DE19792926360 DE2926360A1 (de) 1978-06-30 1979-06-29 Bilderzeugungsgeraet
DE2954647A DE2954647C2 (de) 1978-06-30 1979-06-29 Kopiergerät mit einstellbarer Lichtquellenleistung
GB08137972A GB2108688B (en) 1978-06-30 1981-12-16 Electrophotographic copier
GB08137971A GB2108687B (en) 1978-06-30 1981-12-16 Electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8227478A JPS559545A (en) 1978-07-06 1978-07-06 Exposure control device

Publications (2)

Publication Number Publication Date
JPS559545A true JPS559545A (en) 1980-01-23
JPH0210932B2 JPH0210932B2 (enrdf_load_stackoverflow) 1990-03-12

Family

ID=13769902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8227478A Granted JPS559545A (en) 1978-06-30 1978-07-06 Exposure control device

Country Status (1)

Country Link
JP (1) JPS559545A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56132362A (en) * 1980-03-19 1981-10-16 Ricoh Co Ltd Original lighting device for copying machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04111427U (ja) * 1991-03-12 1992-09-28 河西工業株式会社 吸音材の積層構造

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050343U (enrdf_load_stackoverflow) * 1973-09-05 1975-05-16
JPS5190180A (enrdf_load_stackoverflow) * 1975-02-05 1976-08-07
JPS5223572A (en) * 1975-08-15 1977-02-22 Sumitomo Chem Co Ltd Folded screen type reactor
JPS5326132A (en) * 1976-08-23 1978-03-10 Mita Industrial Co Ltd Exposure device in copying machine
JPS5328428A (en) * 1976-08-24 1978-03-16 Ricoh Co Ltd Light control for electrophoto graphic copier
JPS5726663U (enrdf_load_stackoverflow) * 1980-07-22 1982-02-12

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5050343U (enrdf_load_stackoverflow) * 1973-09-05 1975-05-16
JPS5190180A (enrdf_load_stackoverflow) * 1975-02-05 1976-08-07
JPS5223572A (en) * 1975-08-15 1977-02-22 Sumitomo Chem Co Ltd Folded screen type reactor
JPS5326132A (en) * 1976-08-23 1978-03-10 Mita Industrial Co Ltd Exposure device in copying machine
JPS5328428A (en) * 1976-08-24 1978-03-16 Ricoh Co Ltd Light control for electrophoto graphic copier
JPS5726663U (enrdf_load_stackoverflow) * 1980-07-22 1982-02-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56132362A (en) * 1980-03-19 1981-10-16 Ricoh Co Ltd Original lighting device for copying machine

Also Published As

Publication number Publication date
JPH0210932B2 (enrdf_load_stackoverflow) 1990-03-12

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