DE3216245C2 - - Google Patents

Info

Publication number
DE3216245C2
DE3216245C2 DE19823216245 DE3216245A DE3216245C2 DE 3216245 C2 DE3216245 C2 DE 3216245C2 DE 19823216245 DE19823216245 DE 19823216245 DE 3216245 A DE3216245 A DE 3216245A DE 3216245 C2 DE3216245 C2 DE 3216245C2
Authority
DE
Germany
Prior art keywords
voltage
light source
lamp
control device
exposure
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.)
Expired - Lifetime
Application number
DE19823216245
Other languages
German (de)
English (en)
Other versions
DE3216245A1 (de
Inventor
Kazuo Tokio/Tokyo Jp Uchimura
Akio Yokohama Kanagawa Jp Katsumata
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
Publication of DE3216245A1 publication Critical patent/DE3216245A1/de
Application granted granted Critical
Publication of DE3216245C2 publication Critical patent/DE3216245C2/de
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/04Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
    • G03G15/043Apparatus 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)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
DE19823216245 1981-04-30 1982-04-30 Belichtungssteuereinrichtung fuer ein kopiergeraet Granted DE3216245A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56066701A JPS57181539A (en) 1981-04-30 1981-04-30 Exposure controller for copying machine

Publications (2)

Publication Number Publication Date
DE3216245A1 DE3216245A1 (de) 1982-11-25
DE3216245C2 true DE3216245C2 (enrdf_load_stackoverflow) 1990-10-04

Family

ID=13323500

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823216245 Granted DE3216245A1 (de) 1981-04-30 1982-04-30 Belichtungssteuereinrichtung fuer ein kopiergeraet

Country Status (3)

Country Link
JP (1) JPS57181539A (enrdf_load_stackoverflow)
DE (1) DE3216245A1 (enrdf_load_stackoverflow)
GB (1) GB2097960B (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6425140A (en) * 1987-07-21 1989-01-27 Sharp Kk Exposing device for copying machine

Family Cites Families (5)

* 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
US4024428A (en) * 1975-05-19 1977-05-17 Optical Associates, Incorporated Radiation-sensitive control circuit for driving lamp at various power levels
JPS54153038A (en) * 1978-05-23 1979-12-01 Minolta Camera Co Ltd Automatic exposure control device of electrophoto graphic copier
JPS559546A (en) * 1978-07-06 1980-01-23 Canon Inc Device having light source for exposure
DE2926300A1 (de) * 1979-06-29 1981-01-08 Noell Gmbh Lagergestell fuer abgebrannte brennelemente aus kernkraftwerken

Also Published As

Publication number Publication date
GB2097960B (en) 1985-04-03
JPS57181539A (en) 1982-11-09
DE3216245A1 (de) 1982-11-25
GB2097960A (en) 1982-11-10

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Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM.

8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee