[go: up one dir, main page]

GB1363752A - Exposure control in electrophotography - Google Patents

Exposure control in electrophotography

Info

Publication number
GB1363752A
GB1363752A GB3790871A GB3790871A GB1363752A GB 1363752 A GB1363752 A GB 1363752A GB 3790871 A GB3790871 A GB 3790871A GB 3790871 A GB3790871 A GB 3790871A GB 1363752 A GB1363752 A GB 1363752A
Authority
GB
United Kingdom
Prior art keywords
electrophotography
exposure control
photocell
aug
electro
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
Application number
GB3790871A
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of GB1363752A publication Critical patent/GB1363752A/en
Expired 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)
  • Photoreceptors In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)

Abstract

1363752 Electro-photographic copiers EASTMAN KODAK CO 12 Aug 1971 [13 Aug 1970 17 June 1971] 37908/71 Headings G2A and G2H An electro-photographic copier has a photocell 30 connected to a circuit 32 for controlling exposure of a surface 17; surface 17 and photocell 30 being formed of the same material. As shown photo-cell 30 is located between gold and nickel electrodes 28, 29 to receive light from a half-silvered mirror 19.
GB3790871A 1970-08-13 1971-08-12 Exposure control in electrophotography Expired GB1363752A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US6338570A 1970-08-13 1970-08-13
US15411771A 1971-06-17 1971-06-17

Publications (1)

Publication Number Publication Date
GB1363752A true GB1363752A (en) 1974-08-14

Family

ID=26743368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3790871A Expired GB1363752A (en) 1970-08-13 1971-08-12 Exposure control in electrophotography

Country Status (3)

Country Link
DE (2) DE2140519A1 (en)
FR (1) FR2104269A5 (en)
GB (1) GB1363752A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153364A (en) * 1977-01-28 1979-05-08 Ricoh Company, Ltd. Exposure and development control apparatus for electrostatic copying machine
JPS57210369A (en) * 1981-05-22 1982-12-23 Toshiba Corp Original density detector of image forming device
DE3267764D1 (en) * 1981-05-22 1986-01-16 Toshiba Kk An image density detecting device for image forming apparatus

Also Published As

Publication number Publication date
DE2140519A1 (en) 1972-02-17
DE7130999U (en) 1973-12-20
FR2104269A5 (en) 1972-04-14

Similar Documents

Publication Publication Date Title
GB1186775A (en) Automatic Toner Dispensing Control
ES410172A1 (en) Pre-development exposure assembly
GB1273329A (en) Light sensitive photographic material
GB1322368A (en) Electrophotographic appaatus
GB1309867A (en) Fusing device for electrophotography
GB1363752A (en) Exposure control in electrophotography
GB1207830A (en) Automatic xerographic development control
GB1157739A (en) Photocopy Machine
CA1016796A (en) Self developing photographic film assemblage
AU468036B2 (en) Bias control of electrographic development electrode
GB1204996A (en) Photographic timing apparatus responsive to optical density
JPS543546A (en) Exposure device
GB1261860A (en) Exposure arrangement for copying apparatus
GB1323581A (en) Electrophotographic copying apparatus
GB1014284A (en) Automatic exposure control apparatus
JPS51151134A (en) Multilayer color photographic light sensitive material
GB1288395A (en)
GB1308000A (en)
ES413861A1 (en) Apparatus for reading and electrophotographic reproduction of microphotographs
GB1321258A (en) Camera
JPS534536A (en) Microfilm reader printer
GB1006145A (en) An apparatus for automatically adjusting the exposure aperture in cameras
GB1430110A (en) Identification card
GB1316544A (en) Light exposure means for photo copying machines
GB1269265A (en) Method of producing photographic negatives and prints

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee