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 (pm
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 (pm)

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 (pm) 1974-05-17
JPS5644434B2 JPS5644434B2 (pm) 1981-10-19

Family

ID=22957135

Family Applications (1)

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

Country Status (3)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54149246U (pm) * 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 (pm) * 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
US5268716A (en) * 1986-10-07 1993-12-07 Minolta Camera Kabushiki Kaisha Data entry method and apparatus for an electrophotographic copying machine
US5172167A (en) * 1986-10-07 1992-12-15 Minolta Camera Kabushiki Kaishi Data entry apparatus
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 (pm) * 1978-04-07 1979-10-17
JPS55127582A (en) * 1979-03-26 1980-10-02 Ibm Electrostatic copier

Also Published As

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

Similar Documents

Publication Publication Date Title
FR2197492A5 (pm)
JPS5644434B2 (pm)
FR2209953B1 (pm)
SE7307646L (pm)
FR2197965A1 (pm)
JPS5324623B2 (pm)
FR2191864A1 (pm)
CS153291B1 (pm)
CS153933B1 (pm)
JPS4899666A (pm)
CS154032B1 (pm)
CS155000B1 (pm)
JPS4959596U (pm)
JPS4891148U (pm)
CS155049B1 (pm)
CH595842A5 (pm)
CH583168A5 (pm)
PL78275B1 (pm)
SE7415275L (pm)
CH593273A5 (pm)
CH602729A5 (pm)
CH597167A5 (pm)
CH565732A5 (pm)
CH593278A5 (pm)
CH592194B5 (pm)