CA976598A - Exposure device - Google Patents

Exposure device

Info

Publication number
CA976598A
CA976598A CA118,749A CA118749A CA976598A CA 976598 A CA976598 A CA 976598A CA 118749 A CA118749 A CA 118749A CA 976598 A CA976598 A CA 976598A
Authority
CA
Canada
Prior art keywords
exposure 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
Application number
CA118,749A
Other languages
English (en)
Other versions
CA118749S (en
Inventor
Donald J. Albert
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
Application granted granted Critical
Publication of CA976598A publication Critical patent/CA976598A/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
    • G03G15/045—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 charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas
    • G03G15/047—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 charging or discharging distinct portions of the charge pattern on the recording material, e.g. for contrast enhancement or discharging non-image areas for discharging non-image areas
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/04—Arrangements for exposing and producing an image
    • G03G2215/0429—Changing or enhancing the image
    • G03G2215/0431—Producing a clean non-image area, i.e. avoiding show-around effects
    • G03G2215/0448—Charge-erasing means for the non-image area
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7847—With leak passage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
CA118,749A 1970-08-05 1971-07-21 Exposure device Expired CA976598A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6111970A 1970-08-05 1970-08-05

Publications (1)

Publication Number Publication Date
CA976598A true CA976598A (en) 1975-10-21

Family

ID=22033692

Family Applications (1)

Application Number Title Priority Date Filing Date
CA118,749A Expired CA976598A (en) 1970-08-05 1971-07-21 Exposure device

Country Status (5)

Country Link
US (1) US3671121A (de)
CA (1) CA976598A (de)
DE (1) DE2139280A1 (de)
FR (1) FR2101236B1 (de)
GB (1) GB1363751A (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3754820A (en) * 1968-06-07 1973-08-28 Addressograph Multigraph Copier-duplicator machine
FR2075386A5 (de) * 1970-01-10 1971-10-08 Fuji Photo Film Co Ltd
JPS4926590B1 (de) * 1970-09-03 1974-07-10
BE793559A (fr) * 1971-12-30 1973-06-29 Xerox Corp Machine electrostatographique comportant un dispositif de pre-developpement d'exposition
US3961949A (en) * 1972-01-03 1976-06-08 Xerox Corporation Photoelectrophoretic imaging method producing a desired image border
US3724942A (en) * 1972-04-12 1973-04-03 Ibm Photoconductor discharge shutter assembly
JPS4912829A (de) * 1972-04-17 1974-02-04
US3792913A (en) * 1972-05-12 1974-02-19 Xerox Corp Xerographic erase mechanism
US3793016A (en) * 1972-10-19 1974-02-19 Xerox Corp Electrophotographic sheet binding process
US3901593A (en) * 1973-03-27 1975-08-26 Iwatsu Electric Co Ltd Copying machines of the variable magnifying power type
US3972610A (en) * 1973-04-09 1976-08-03 A. B. Dick/Scott Electrophotographic apparatus for production of plural images on a sheet
US3972613A (en) * 1975-04-23 1976-08-03 Scott Paper Company Copyboard
NL7510270A (nl) * 1975-09-01 1977-03-03 Oce Van Der Grinten Nv Methode en middelen voor het vermijden van rand- schaduweffekten bij episkopische belichting van een origineel.
JPS5527885Y2 (de) * 1975-09-09 1980-07-03
US4047811A (en) * 1976-05-27 1977-09-13 Xerox Corporation Available light marginal illumination system
DE2757850C3 (de) * 1977-12-23 1981-01-29 Agfa-Gevaert Ag, 5090 Leverkusen Transparente Auflageplatte für ein Original in einem optischen Kopiergerät
JPS55110269A (en) * 1979-02-19 1980-08-25 Canon Inc Auxiliary exposure device
US5099282A (en) * 1982-04-15 1992-03-24 Canon Kabushiki Kaisha Variable magnification image forming apparatus
US4637974A (en) * 1983-04-15 1987-01-20 Weber Marking Systems, Inc. Xerographic copying on a transparent sheet
JPS62201479A (ja) * 1986-02-28 1987-09-05 Mita Ind Co Ltd 画像形成装置
US5634180A (en) * 1995-05-04 1997-05-27 Steven Bruce Michlin Method for blocking unwanted light from a photoreceptor drum

Also Published As

Publication number Publication date
US3671121A (en) 1972-06-20
GB1363751A (en) 1974-08-14
DE2139280A1 (de) 1972-02-10
FR2101236A1 (de) 1972-03-31
FR2101236B1 (de) 1973-06-29

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