JPS5527885Y2 - - Google Patents

Info

Publication number
JPS5527885Y2
JPS5527885Y2 JP1975123443U JP12344375U JPS5527885Y2 JP S5527885 Y2 JPS5527885 Y2 JP S5527885Y2 JP 1975123443 U JP1975123443 U JP 1975123443U JP 12344375 U JP12344375 U JP 12344375U JP S5527885 Y2 JPS5527885 Y2 JP S5527885Y2
Authority
JP
Japan
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
JP1975123443U
Other languages
Japanese (ja)
Other versions
JPS5236929U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
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 filed Critical
Priority to JP1975123443U priority Critical patent/JPS5527885Y2/ja
Priority to US05/689,292 priority patent/US4080071A/en
Publication of JPS5236929U publication Critical patent/JPS5236929U/ja
Application granted granted Critical
Publication of JPS5527885Y2 publication Critical patent/JPS5527885Y2/ja
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
    • G03G2215/0434—Parameters defining the non-image area to be cleaned
    • G03G2215/0443—Copy medium outline relative to the charge image
    • 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
    • G03G2215/0463—Exposure lamp used for scanning

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Holders For Sensitive Materials And Originals (AREA)
  • Projection-Type Copiers In General (AREA)
JP1975123443U 1975-09-09 1975-09-09 Expired JPS5527885Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1975123443U JPS5527885Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-09-09 1975-09-09
US05/689,292 US4080071A (en) 1975-09-09 1976-05-24 Exposure device of a copying machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1975123443U JPS5527885Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-09-09 1975-09-09

Publications (2)

Publication Number Publication Date
JPS5236929U JPS5236929U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-03-16
JPS5527885Y2 true JPS5527885Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1980-07-03

Family

ID=14860715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1975123443U Expired JPS5527885Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-09-09 1975-09-09

Country Status (2)

Country Link
US (1) US4080071A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5527885Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58217962A (ja) * 1982-06-14 1983-12-19 Canon Inc 電子写真複写装置
NL8502186A (nl) * 1985-08-05 1987-03-02 Oce Nederland Bv Kopieerapparaat voorzien van instelbare kadreermiddelen.
US4821067A (en) * 1985-10-31 1989-04-11 Kabushiki Kaisha Toshiba Microfilm reader-printer having an image fermation device
US4745438A (en) * 1986-09-16 1988-05-17 Xerox Corporation Automatic copier show-around erase system
JPH01303461A (ja) * 1988-05-31 1989-12-07 Sharp Corp 画像形成装置
JPH03130419U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1990-04-11 1991-12-27

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3671121A (en) * 1970-08-05 1972-06-20 Eastman Kodak Co Exposure device for controlling charge on a portion of a charged surface bordering an image frame projected on the charged surface
US3751155A (en) * 1971-12-30 1973-08-07 Xerox Corp Pre-development exposure assembly
US3724942A (en) * 1972-04-12 1973-04-03 Ibm Photoconductor discharge shutter assembly
US3792913A (en) * 1972-05-12 1974-02-19 Xerox Corp Xerographic erase mechanism

Also Published As

Publication number Publication date
JPS5236929U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-03-16
US4080071A (en) 1978-03-21

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