JPS5363026A - Automatic control device for ex posure amount of electrophotographic copier - Google Patents

Automatic control device for ex posure amount of electrophotographic copier

Info

Publication number
JPS5363026A
JPS5363026A JP13898076A JP13898076A JPS5363026A JP S5363026 A JPS5363026 A JP S5363026A JP 13898076 A JP13898076 A JP 13898076A JP 13898076 A JP13898076 A JP 13898076A JP S5363026 A JPS5363026 A JP S5363026A
Authority
JP
Japan
Prior art keywords
amount
posure
control device
electrophotographic copier
automatic 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.)
Pending
Application number
JP13898076A
Other languages
Japanese (ja)
Inventor
Mitsuo Hasebe
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 JP13898076A priority Critical patent/JPS5363026A/en
Priority to US05/840,614 priority patent/US4176943A/en
Priority to CA289,081A priority patent/CA1103735A/en
Priority to DE2746806A priority patent/DE2746806C3/en
Publication of JPS5363026A publication Critical patent/JPS5363026A/en
Pending legal-status Critical Current

Links

Landscapes

  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE:To automatically control an exposure amount to a photo-sensitive body in a simple constitution in the electrophotographic copier by providing the remaining electric charge of a light shield member and of an electrode which controls an amount of displacement of the light shield member as a grounding electric potential.
JP13898076A 1976-10-18 1976-11-18 Automatic control device for ex posure amount of electrophotographic copier Pending JPS5363026A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP13898076A JPS5363026A (en) 1976-11-18 1976-11-18 Automatic control device for ex posure amount of electrophotographic copier
US05/840,614 US4176943A (en) 1976-10-18 1977-10-11 Electrophotographic apparatus
CA289,081A CA1103735A (en) 1976-10-18 1977-10-17 Electrophotographic apparatus with controlled exposure
DE2746806A DE2746806C3 (en) 1976-10-18 1977-10-18 Electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13898076A JPS5363026A (en) 1976-11-18 1976-11-18 Automatic control device for ex posure amount of electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS5363026A true JPS5363026A (en) 1978-06-06

Family

ID=15234656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13898076A Pending JPS5363026A (en) 1976-10-18 1976-11-18 Automatic control device for ex posure amount of electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS5363026A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55124345A (en) * 1979-03-16 1980-09-25 Shiro Okamura Transmission system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55124345A (en) * 1979-03-16 1980-09-25 Shiro Okamura Transmission system

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