FR2339192A1 - Machine copieuse electrophotographique - Google Patents

Machine copieuse electrophotographique

Info

Publication number
FR2339192A1
FR2339192A1 FR7701181A FR7701181A FR2339192A1 FR 2339192 A1 FR2339192 A1 FR 2339192A1 FR 7701181 A FR7701181 A FR 7701181A FR 7701181 A FR7701181 A FR 7701181A FR 2339192 A1 FR2339192 A1 FR 2339192A1
Authority
FR
France
Prior art keywords
copying machine
electrophotographic copying
electrophotographic
machine
copying
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.)
Granted
Application number
FR7701181A
Other languages
English (en)
Other versions
FR2339192B1 (fr
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.)
Olivetti SpA
Original Assignee
Olivetti SpA
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 Olivetti SpA filed Critical Olivetti SpA
Publication of FR2339192A1 publication Critical patent/FR2339192A1/fr
Application granted granted Critical
Publication of FR2339192B1 publication Critical patent/FR2339192B1/fr
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
FR7701181A 1976-01-20 1977-01-17 Machine copieuse electrophotographique Granted FR2339192A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67123/76A IT1055822B (it) 1976-01-20 1976-01-20 Macchina copiatrice elettrofotografica

Publications (2)

Publication Number Publication Date
FR2339192A1 true FR2339192A1 (fr) 1977-08-19
FR2339192B1 FR2339192B1 (fr) 1983-06-10

Family

ID=11299778

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7701181A Granted FR2339192A1 (fr) 1976-01-20 1977-01-17 Machine copieuse electrophotographique

Country Status (6)

Country Link
US (1) US4129378A (fr)
JP (1) JPS52106745A (fr)
DE (1) DE2702447A1 (fr)
FR (1) FR2339192A1 (fr)
GB (1) GB1570702A (fr)
IT (1) IT1055822B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211464A1 (fr) * 1985-08-05 1987-02-25 Océ-Nederland B.V. Dispositif de copie muni de moyens pour faire des marges variables

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4215929A (en) * 1977-09-17 1980-08-05 Canon Kabushiki Kaisha Image forming method and apparatus capable of controlling an electrostatic image formation area
US4256400A (en) * 1977-10-08 1981-03-17 Canon Kabushiki Kaisha Copying machine provided with means for selectively setting original base line
JPS5669666A (en) * 1979-11-12 1981-06-11 Konishiroku Photo Ind Co Ltd Copying machine
US4431301A (en) * 1980-03-12 1984-02-14 Tokyo Shibaura Denki Kabushiki Kaisha Electrostatic copying apparatus with means for preventing contamination of reverse side of copying medium
NL8104461A (nl) * 1981-09-30 1983-04-18 Oce Nederland Bv Belichtingsinrichting.
JPS58162161U (ja) * 1982-04-23 1983-10-28 カシオ計算機株式会社 電子写真複写機の除電装置
JPS59228680A (ja) * 1983-06-10 1984-12-22 Sharp Corp 電子写真複写機
US4821067A (en) * 1985-10-31 1989-04-11 Kabushiki Kaisha Toshiba Microfilm reader-printer having an image fermation device
US5300985A (en) * 1992-05-29 1994-04-05 Xerox Corporation Multi-function erase lamp
US5459557A (en) * 1992-06-30 1995-10-17 Canon Kabushiki Kaisha Image forming apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1055781A (fr) * 1949-06-22 1954-02-22 Kodak Pathe Appareil pour la reproduction photographique de documents
US2927516A (en) * 1955-12-21 1960-03-08 Ibm Record card controlled electro-graphic printer
FR2167109A5 (fr) * 1971-12-30 1973-08-17 Xerox Corp
US3792913A (en) * 1972-05-12 1974-02-19 Xerox Corp Xerographic erase mechanism
FR2223734A1 (fr) * 1973-03-30 1974-10-25 Xerox Corp
FR2262339A1 (fr) * 1974-02-22 1975-09-19 Xerox Corp

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751155A (en) * 1971-12-30 1973-08-07 Xerox Corp Pre-development exposure assembly
US3860338A (en) * 1973-01-15 1975-01-14 Xerox Corp Adjustable fadeout control

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1055781A (fr) * 1949-06-22 1954-02-22 Kodak Pathe Appareil pour la reproduction photographique de documents
US2927516A (en) * 1955-12-21 1960-03-08 Ibm Record card controlled electro-graphic printer
FR2167109A5 (fr) * 1971-12-30 1973-08-17 Xerox Corp
US3792913A (en) * 1972-05-12 1974-02-19 Xerox Corp Xerographic erase mechanism
FR2223734A1 (fr) * 1973-03-30 1974-10-25 Xerox Corp
FR2262339A1 (fr) * 1974-02-22 1975-09-19 Xerox Corp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/73 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211464A1 (fr) * 1985-08-05 1987-02-25 Océ-Nederland B.V. Dispositif de copie muni de moyens pour faire des marges variables

Also Published As

Publication number Publication date
IT1055822B (it) 1982-01-11
US4129378A (en) 1978-12-12
FR2339192B1 (fr) 1983-06-10
JPS52106745A (en) 1977-09-07
GB1570702A (en) 1980-07-09
DE2702447A1 (de) 1977-07-21

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Legal Events

Date Code Title Description
ST Notification of lapse