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GB1412249A - Copying method and apparatus - Google Patents

Copying method and apparatus

Info

Publication number
GB1412249A
GB1412249A GB5955772A GB5955772A GB1412249A GB 1412249 A GB1412249 A GB 1412249A GB 5955772 A GB5955772 A GB 5955772A GB 5955772 A GB5955772 A GB 5955772A GB 1412249 A GB1412249 A GB 1412249A
Authority
GB
United Kingdom
Prior art keywords
station
corotron
charge
copy paper
dec
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
GB5955772A
Other languages
English (en)
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Publication of GB1412249A publication Critical patent/GB1412249A/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
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
    • G03G21/06—Eliminating residual charges from a reusable imaging member
    • G03G21/08—Eliminating residual charges from a reusable imaging member using optical radiation
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
  • Cleaning In Electrography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
GB5955772A 1971-12-27 1972-12-22 Copying method and apparatus Expired GB1412249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10548371A JPS5618953B2 (fr) 1971-12-27 1971-12-27

Publications (1)

Publication Number Publication Date
GB1412249A true GB1412249A (en) 1975-10-29

Family

ID=14408821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5955772A Expired GB1412249A (en) 1971-12-27 1972-12-22 Copying method and apparatus

Country Status (5)

Country Link
US (1) US3778148A (fr)
JP (1) JPS5618953B2 (fr)
DE (1) DE2263707C3 (fr)
FR (1) FR2354029A5 (fr)
GB (1) GB1412249A (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS588507B2 (ja) * 1974-06-10 1983-02-16 株式会社リコー 湿式現像装置
DE2535366C3 (de) * 1974-08-14 1981-05-07 Ricoh Co., Ltd., Tokyo Elektrophotographisches Verfahren und Einrichtung
JPS51119229A (en) * 1975-04-11 1976-10-19 Minolta Camera Co Ltd Electrophotography
NL7507493A (nl) * 1975-06-24 1976-12-28 Oce Van Der Grinten Nv Kopieerinrichting.
JPS5229145U (fr) * 1975-08-21 1977-03-01
JPS599054B2 (ja) * 1975-10-29 1984-02-29 ミノルタ株式会社 電子複写装置
JPS5264936A (en) * 1975-11-25 1977-05-28 Canon Inc Apparatus for electronic photography
JPS5289923A (en) * 1976-01-23 1977-07-28 Ricoh Co Ltd Cleaning of remaining toner in electrophotographic copier
JPS52110640A (en) * 1976-03-15 1977-09-16 Minolta Camera Co Ltd Static latent image transferring electrophotographic copier
CH621421A5 (en) * 1976-03-31 1981-01-30 Du Pont Magnetographic dry copying process and device for carrying it out
US4047811A (en) * 1976-05-27 1977-09-13 Xerox Corporation Available light marginal illumination system
JPS6320996Y2 (fr) * 1978-04-07 1988-06-10
JPS5550291A (en) * 1978-10-09 1980-04-11 Toshiba Corp Electronic copier
DE2929037A1 (de) * 1979-07-18 1981-02-05 Siemens Ag Verfahren und vorrichtung zur ionografischen roentgenbild-aufzeichnung
US4534641A (en) * 1983-10-31 1985-08-13 Xerox Corporation Charge erase device for copying or reproduction machines and printers
US4538900A (en) * 1983-11-09 1985-09-03 Ricoh Company, Ltd. Electrophotographic copying apparatus including drum conditioning apparatus and method
US4561761A (en) * 1984-06-25 1985-12-31 Xerox Corporation Charge erase device for copying or reproduction machines and printers
NL8502186A (nl) * 1985-08-05 1987-03-02 Oce Nederland Bv Kopieerapparaat voorzien van instelbare kadreermiddelen.
US4785324A (en) * 1986-03-26 1988-11-15 Kabushiki Kaisha Toshiba Electrophotographic apparatus and method for preventing the lowering of a charging voltage at a photoreceptor
JPH087487B2 (ja) * 1987-05-26 1996-01-29 キヤノン株式会社 画像形成装置
US5459557A (en) * 1992-06-30 1995-10-17 Canon Kabushiki Kaisha Image forming apparatus
JP5948284B2 (ja) * 2013-07-17 2016-07-06 京セラドキュメントソリューションズ株式会社 画像形成装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909971A (en) * 1954-03-29 1959-10-27 Ibm Printing machine
US3318698A (en) * 1963-05-03 1967-05-09 Xerox Corp Xeroprinting reproduction
US3540806A (en) * 1968-03-06 1970-11-17 Xerox Corp Half-toning method and apparatus for solid area coverage
DE2055321C3 (de) * 1969-11-11 1975-11-20 Katsuragawa Denki K.K., Tokio Gerät zum Zuführen eines Toners in einer elektrophotographischen Kopiervorrichtung

Also Published As

Publication number Publication date
US3778148A (en) 1973-12-11
JPS4871240A (fr) 1973-09-27
DE2263707C3 (de) 1978-12-21
DE2263707B2 (de) 1978-05-03
JPS5618953B2 (fr) 1981-05-02
FR2354029A5 (fr) 1977-12-30
DE2263707A1 (de) 1973-07-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee