JPS5756072B2 - - Google Patents

Info

Publication number
JPS5756072B2
JPS5756072B2 JP734333A JP433373A JPS5756072B2 JP S5756072 B2 JPS5756072 B2 JP S5756072B2 JP 734333 A JP734333 A JP 734333A JP 433373 A JP433373 A JP 433373A JP S5756072 B2 JPS5756072 B2 JP S5756072B2
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.)
Expired
Application number
JP734333A
Other languages
Japanese (ja)
Other versions
JPS4878940A (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 JPS4878940A publication Critical patent/JPS4878940A/ja
Publication of JPS5756072B2 publication Critical patent/JPS5756072B2/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
    • G03G2215/0434—Parameters defining the non-image area to be cleaned
    • G03G2215/0446—Magnification degree
    • 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)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Electrostatic Charge, Transfer And Separation In Electrography (AREA)
JP734333A 1971-12-30 1972-12-26 Expired JPS5756072B2 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00214244A US3809472A (en) 1971-12-30 1971-12-30 Pre-development exposure assembly

Publications (2)

Publication Number Publication Date
JPS4878940A JPS4878940A (enrdf_load_stackoverflow) 1973-10-23
JPS5756072B2 true JPS5756072B2 (enrdf_load_stackoverflow) 1982-11-27

Family

ID=22798337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP734333A Expired JPS5756072B2 (enrdf_load_stackoverflow) 1971-12-30 1972-12-26

Country Status (21)

Country Link
US (1) US3809472A (enrdf_load_stackoverflow)
JP (1) JPS5756072B2 (enrdf_load_stackoverflow)
AR (1) AR196103A1 (enrdf_load_stackoverflow)
AU (1) AU466757B2 (enrdf_load_stackoverflow)
BE (1) BE793559A (enrdf_load_stackoverflow)
BR (1) BR7208623D0 (enrdf_load_stackoverflow)
CA (1) CA1025513A (enrdf_load_stackoverflow)
CH (1) CH552841A (enrdf_load_stackoverflow)
CS (1) CS175444B2 (enrdf_load_stackoverflow)
DD (1) DD102825A5 (enrdf_load_stackoverflow)
DE (1) DE2260555B2 (enrdf_load_stackoverflow)
DK (1) DK134831B (enrdf_load_stackoverflow)
ES (1) ES410172A1 (enrdf_load_stackoverflow)
FR (1) FR2167109A5 (enrdf_load_stackoverflow)
GB (1) GB1415170A (enrdf_load_stackoverflow)
IL (1) IL41129A (enrdf_load_stackoverflow)
IT (1) IT973319B (enrdf_load_stackoverflow)
NL (1) NL7217766A (enrdf_load_stackoverflow)
SE (1) SE375388B (enrdf_load_stackoverflow)
SU (1) SU902680A3 (enrdf_load_stackoverflow)
ZA (1) ZA729132B (enrdf_load_stackoverflow)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997259A (en) * 1973-11-08 1976-12-14 Xerox Corporation Apparatus for reducing image background in electrostatic reproduction machines
US3834807A (en) * 1974-02-14 1974-09-10 Ibm Copier with leading edge image control
JPS5444595Y2 (enrdf_load_stackoverflow) * 1974-04-29 1979-12-21
JPS51147443U (enrdf_load_stackoverflow) * 1975-05-21 1976-11-26
US4046471A (en) * 1975-11-03 1977-09-06 International Business Machines Corporation Dual mode electrophotographic apparatus having dual function printing beam
IT1055822B (it) * 1976-01-20 1982-01-11 Olivetti E C Spa Macchina copiatrice elettrofotografica
JPS52155553U (enrdf_load_stackoverflow) * 1976-05-20 1977-11-25
JPS52155552U (enrdf_load_stackoverflow) * 1976-05-20 1977-11-25
JPS563715Y2 (enrdf_load_stackoverflow) * 1976-07-13 1981-01-27
JPS53119943U (enrdf_load_stackoverflow) * 1977-03-01 1978-09-25
JPS53129639A (en) * 1977-04-19 1978-11-11 Mita Industrial Co Ltd Method of and device for electrostatic copying
JPS5494038A (en) * 1978-01-07 1979-07-25 Ricoh Co Ltd Copier for zerography
US4265556A (en) * 1978-12-21 1981-05-05 International Business Machines Corporation Apparatus for setting proportional margins based upon the width of a scanned sheet of paper
US4272204A (en) * 1978-12-21 1981-06-09 International Business Machines Corporation Automatic margin determining apparatus for a scanned sheet of paper
US4255042A (en) * 1979-03-26 1981-03-10 International Business Machines Corporation Light pipe for accurate erasure of photoconductor charge
JPS5674259A (en) * 1979-11-22 1981-06-19 Olympus Optical Co Ltd Electrophotographic apparatus
US4279504A (en) * 1979-12-26 1981-07-21 International Business Machines Corporation Copier and multifunction paper cassette
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
JPS60140287A (ja) * 1983-12-28 1985-07-25 Mita Ind Co Ltd 除電ランプ装置
US4611906A (en) * 1985-01-22 1986-09-16 Sanyo Electric Co., Ltd. Electrophotographic copying apparatus
NL8502186A (nl) * 1985-08-05 1987-03-02 Oce Nederland Bv Kopieerapparaat voorzien van instelbare kadreermiddelen.
US4745438A (en) * 1986-09-16 1988-05-17 Xerox Corporation Automatic copier show-around erase system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927516A (en) * 1955-12-21 1960-03-08 Ibm Record card controlled electro-graphic printer
US3122455A (en) * 1960-12-30 1964-02-25 Xerox Corp Xerographic toner dispenser
GB1181214A (en) * 1966-04-07 1970-02-11 Charles William Clark Photographic Machines
GB1248945A (en) * 1967-12-26 1971-10-06 Rank Xerox Ltd Electrophotography
US3556655A (en) * 1968-01-22 1971-01-19 Addressograph Multigraph Photoelectrostatic copying machine
US3685894A (en) * 1968-01-22 1972-08-22 Addressograph Multigraph Photoelectrostatic copying machine having lamps for exposing copy margins
US3578970A (en) * 1968-05-03 1971-05-18 Plastic Coating Corp Variable width corona discharge apparatus with means to shield or vary a predetermined length of a corona discharge wire
US3612682A (en) * 1968-06-07 1971-10-12 Addressograph Multigraph Copier-duplicator machine providing for photoelectrostatic master from which copies are made
BE748854A (fr) * 1969-04-16 1970-09-16 Fuji Photo Film Co Ltd Appareil electrophotographique
JPS5018394B1 (enrdf_load_stackoverflow) * 1970-01-10 1975-06-28
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
JPS4943337B1 (enrdf_load_stackoverflow) * 1970-09-03 1974-11-20
US3724940A (en) * 1970-12-07 1973-04-03 Ricoh Kk Electrophotographic copying apparatus with means for erasing marginal images
US3888644A (en) * 1973-12-03 1975-06-10 Black Sivalls & Bryson Inc Filter-separator apparatus

Also Published As

Publication number Publication date
FR2167109A5 (enrdf_load_stackoverflow) 1973-08-17
ES410172A1 (es) 1976-01-01
CS175444B2 (enrdf_load_stackoverflow) 1977-05-31
AU5058572A (en) 1974-07-04
NL7217766A (enrdf_load_stackoverflow) 1973-07-03
GB1415170A (en) 1975-11-26
CH552841A (de) 1974-08-15
IL41129A0 (en) 1973-02-28
DD102825A5 (enrdf_load_stackoverflow) 1973-12-20
ZA729132B (en) 1973-10-31
US3809472A (en) 1974-05-07
SE375388B (enrdf_load_stackoverflow) 1975-04-14
SU902680A3 (ru) 1982-01-30
DE2260555A1 (de) 1973-07-05
IT973319B (it) 1974-06-10
AR196103A1 (es) 1973-11-30
BR7208623D0 (pt) 1973-09-13
DK134831B (da) 1977-01-24
AU466757B2 (en) 1974-07-04
DE2260555B2 (de) 1978-12-14
BE793559A (fr) 1973-06-29
JPS4878940A (enrdf_load_stackoverflow) 1973-10-23
IL41129A (en) 1977-01-31
CA1025513A (en) 1978-01-31

Similar Documents

Publication Publication Date Title
FR2167109A5 (enrdf_load_stackoverflow)
ATA136472A (enrdf_load_stackoverflow)
AR196074A1 (enrdf_load_stackoverflow)
AU2742671A (enrdf_load_stackoverflow)
AU2894671A (enrdf_load_stackoverflow)
AU2941471A (enrdf_load_stackoverflow)
AU2952271A (enrdf_load_stackoverflow)
AU3005371A (enrdf_load_stackoverflow)
AU2455871A (enrdf_load_stackoverflow)
AR192311Q (enrdf_load_stackoverflow)
AU2740271A (enrdf_load_stackoverflow)
AU2684171A (enrdf_load_stackoverflow)
AR202997Q (enrdf_load_stackoverflow)
AR199640Q (enrdf_load_stackoverflow)
AU3038671A (enrdf_load_stackoverflow)
AU2755871A (enrdf_load_stackoverflow)
AU2940971A (enrdf_load_stackoverflow)
AU2875571A (enrdf_load_stackoverflow)
AU2473671A (enrdf_load_stackoverflow)
AU3025871A (enrdf_load_stackoverflow)
AU1109576A (enrdf_load_stackoverflow)
AU2399971A (enrdf_load_stackoverflow)
AU2963771A (enrdf_load_stackoverflow)
AU2456871A (enrdf_load_stackoverflow)
AU2880771A (enrdf_load_stackoverflow)