FR2331072A1 - Appareil copieur electrophotographique - Google Patents

Appareil copieur electrophotographique

Info

Publication number
FR2331072A1
FR2331072A1 FR7633094A FR7633094A FR2331072A1 FR 2331072 A1 FR2331072 A1 FR 2331072A1 FR 7633094 A FR7633094 A FR 7633094A FR 7633094 A FR7633094 A FR 7633094A FR 2331072 A1 FR2331072 A1 FR 2331072A1
Authority
FR
France
Prior art keywords
electrophotographic copying
copying device
electrophotographic
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
FR7633094A
Other languages
English (en)
Other versions
FR2331072B3 (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.)
Canon Production Printing Holding BV
Original Assignee
Oce Van der Grinten NV
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 Oce Van der Grinten NV filed Critical Oce Van der Grinten NV
Publication of FR2331072A1 publication Critical patent/FR2331072A1/fr
Application granted granted Critical
Publication of FR2331072B3 publication Critical patent/FR2331072B3/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
    • G03G2215/0436—Document properties at the scanning position, e.g. position and density
    • 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)
  • Projection-Type Copiers In General (AREA)
FR7633094A 1975-11-04 1976-11-03 Appareil copieur electrophotographique Granted FR2331072A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7512887A NL7512887A (nl) 1975-11-04 1975-11-04 Elektrofotografisch kopieerapparaat.

Publications (2)

Publication Number Publication Date
FR2331072A1 true FR2331072A1 (fr) 1977-06-03
FR2331072B3 FR2331072B3 (fr) 1978-12-15

Family

ID=19824784

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7633094A Granted FR2331072A1 (fr) 1975-11-04 1976-11-03 Appareil copieur electrophotographique

Country Status (5)

Country Link
JP (1) JPS5257833A (fr)
DE (1) DE2647628A1 (fr)
FR (1) FR2331072A1 (fr)
GB (1) GB1538882A (fr)
NL (1) NL7512887A (fr)

Also Published As

Publication number Publication date
GB1538882A (en) 1979-01-24
NL7512887A (nl) 1977-05-06
JPS5257833A (en) 1977-05-12
FR2331072B3 (fr) 1978-12-15
DE2647628A1 (de) 1977-05-05

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