JPS4950945A - - Google Patents

Info

Publication number
JPS4950945A
JPS4950945A JP48053052A JP5305273A JPS4950945A JP S4950945 A JPS4950945 A JP S4950945A JP 48053052 A JP48053052 A JP 48053052A JP 5305273 A JP5305273 A JP 5305273A JP S4950945 A JPS4950945 A JP S4950945A
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.)
Granted
Application number
JP48053052A
Other languages
Japanese (ja)
Other versions
JPS5644434B2 (enrdf_load_stackoverflow
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
Publication of JPS4950945A publication Critical patent/JPS4950945A/ja
Publication of JPS5644434B2 publication Critical patent/JPS5644434B2/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
JP5305273A 1972-05-12 1973-05-10 Expired JPS5644434B2 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25269872A 1972-05-12 1972-05-12

Publications (2)

Publication Number Publication Date
JPS4950945A true JPS4950945A (enrdf_load_stackoverflow) 1974-05-17
JPS5644434B2 JPS5644434B2 (enrdf_load_stackoverflow) 1981-10-19

Family

ID=22957135

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5305273A Expired JPS5644434B2 (enrdf_load_stackoverflow) 1972-05-12 1973-05-10

Country Status (3)

Country Link
US (1) US3792913A (enrdf_load_stackoverflow)
JP (1) JPS5644434B2 (enrdf_load_stackoverflow)
GB (1) GB1422175A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54149246U (enrdf_load_stackoverflow) * 1978-04-07 1979-10-17
JPS55127582A (en) * 1979-03-26 1980-10-02 Ibm Electrostatic copier

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133609A (en) * 1974-05-15 1979-01-09 Minolta Camera Kabushiki Kaisha Charge-erasing device for electrophotographic copying apparatus
US4046467A (en) * 1975-05-14 1977-09-06 Xerox Corporation Zoom lens copier
US3967896A (en) * 1975-05-14 1976-07-06 Rank Xerox Ltd. Variable edge fadeout apparatus for electrostatic reproduction machines
JPS5527885Y2 (enrdf_load_stackoverflow) * 1975-09-09 1980-07-03
IT1055822B (it) * 1976-01-20 1982-01-11 Olivetti E C Spa Macchina copiatrice elettrofotografica
US4047811A (en) * 1976-05-27 1977-09-13 Xerox Corporation Available light marginal illumination system
JPS5494038A (en) * 1978-01-07 1979-07-25 Ricoh Co Ltd Copier for zerography
US4264201A (en) * 1978-11-13 1981-04-28 Pitney Bowes Inc. Electrostatic copying process
JPS5989371U (ja) * 1982-12-03 1984-06-16 シャープ株式会社 複写機用光照射装置
US4695152A (en) * 1984-11-28 1987-09-22 Xerox Corporation Charge erase device for an electrophotographic printing machine
US4611906A (en) * 1985-01-22 1986-09-16 Sanyo Electric Co., Ltd. Electrophotographic copying apparatus
JPS61175631A (ja) * 1985-01-30 1986-08-07 Minolta Camera Co Ltd リ−ダ−・プリンタ−
US4774593A (en) * 1985-04-19 1988-09-27 Sanyo Electric Co., Ltd. Image forming apparatus
US4707110A (en) * 1985-12-27 1987-11-17 Kabushiki Kaisha Toshiba Image forming apparatus with color change area discriminating function
US4716436A (en) * 1986-02-26 1987-12-29 Xerox Corporation Charge erase device with flare light control
US4745438A (en) * 1986-09-16 1988-05-17 Xerox Corporation Automatic copier show-around erase system
US5172167A (en) * 1986-10-07 1992-12-15 Minolta Camera Kabushiki Kaishi Data entry apparatus
US5268716A (en) * 1986-10-07 1993-12-07 Minolta Camera Kabushiki Kaisha Data entry method and apparatus for an electrophotographic copying machine
US5353108A (en) * 1990-07-05 1994-10-04 Matsushita Electric Industrial Co., Ltd. Apparatus for cleaning printed paper
US6022423A (en) * 1996-05-23 2000-02-08 Imagex Technologies, Inc. Method for deinking paper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3089384A (en) * 1959-10-31 1963-05-14 Agfa Ag Photographic masking arrangement
US3556655A (en) * 1968-01-22 1971-01-19 Addressograph Multigraph Photoelectrostatic copying machine
US3540806A (en) * 1968-03-06 1970-11-17 Xerox Corp Half-toning method and apparatus for solid area coverage
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54149246U (enrdf_load_stackoverflow) * 1978-04-07 1979-10-17
JPS55127582A (en) * 1979-03-26 1980-10-02 Ibm Electrostatic copier

Also Published As

Publication number Publication date
JPS5644434B2 (enrdf_load_stackoverflow) 1981-10-19
GB1422175A (en) 1976-01-21
US3792913A (en) 1974-02-19

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