DE2460544A1 - Elektrostatisches kopiergeraet - Google Patents

Elektrostatisches kopiergeraet

Info

Publication number
DE2460544A1
DE2460544A1 DE19742460544 DE2460544A DE2460544A1 DE 2460544 A1 DE2460544 A1 DE 2460544A1 DE 19742460544 DE19742460544 DE 19742460544 DE 2460544 A DE2460544 A DE 2460544A DE 2460544 A1 DE2460544 A1 DE 2460544A1
Authority
DE
Germany
Prior art keywords
image
lamps
lamp
belt
signal
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.)
Withdrawn
Application number
DE19742460544
Other languages
German (de)
English (en)
Inventor
Kenton Willard Fiske
Ihor Kulbida
Donald Saxton Post
Edward G Reehil
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of DE2460544A1 publication Critical patent/DE2460544A1/de
Withdrawn legal-status Critical Current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
    • G03G2215/0446—Magnification degree

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
DE19742460544 1974-02-22 1974-12-20 Elektrostatisches kopiergeraet Withdrawn DE2460544A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44501374A 1974-02-22 1974-02-22

Publications (1)

Publication Number Publication Date
DE2460544A1 true DE2460544A1 (de) 1975-08-28

Family

ID=23767298

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742460544 Withdrawn DE2460544A1 (de) 1974-02-22 1974-12-20 Elektrostatisches kopiergeraet

Country Status (5)

Country Link
JP (1) JPS50120342A (no)
DE (1) DE2460544A1 (no)
FR (1) FR2262339B1 (no)
GB (1) GB1487793A (no)
NL (1) NL7500336A (no)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1055822B (it) * 1976-01-20 1982-01-11 Olivetti E C Spa Macchina copiatrice elettrofotografica
US4255042A (en) * 1979-03-26 1981-03-10 International Business Machines Corporation Light pipe for accurate erasure of photoconductor charge
EP0180984B1 (en) * 1984-11-06 1989-07-19 Kabushiki Kaisha Toshiba Image forming apparatus with image forming area selection
JPS6236681A (ja) * 1985-08-12 1987-02-17 Toshiba Corp 画像形成装置
JPS6380279A (ja) * 1986-09-24 1988-04-11 Sharp Corp ブランクランプを備えた複写機
US5274419A (en) * 1989-12-20 1993-12-28 Dainippon Screen Mfg. Co., Ltd. Camera and photosensitive material feed unit useful therefor

Also Published As

Publication number Publication date
GB1487793A (en) 1977-10-05
FR2262339A1 (no) 1975-09-19
FR2262339B1 (no) 1980-09-12
JPS50120342A (no) 1975-09-20
NL7500336A (nl) 1975-05-30

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination