DE2702920C2 - - Google Patents

Info

Publication number
DE2702920C2
DE2702920C2 DE2702920A DE2702920A DE2702920C2 DE 2702920 C2 DE2702920 C2 DE 2702920C2 DE 2702920 A DE2702920 A DE 2702920A DE 2702920 A DE2702920 A DE 2702920A DE 2702920 C2 DE2702920 C2 DE 2702920C2
Authority
DE
Germany
Prior art keywords
image
density
area
printing form
electrographic
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.)
Expired
Application number
DE2702920A
Other languages
German (de)
English (en)
Other versions
DE2702920A1 (de
Inventor
Motoharu Tokio/Tokyo Jp Fujii
Takao Yokohama Kanagawa Jp Muramatsu
Noboru Tokio/Tokyo Jp Koumura
Susumu Yamato Kanagawa Jp Sugiura
Nobuhiro Tokio/Tokyo Jp Takekawa
Syusei Sagamihara Kanagawa Jp Tsukada
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 Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of DE2702920A1 publication Critical patent/DE2702920A1/de
Application granted granted Critical
Publication of DE2702920C2 publication Critical patent/DE2702920C2/de
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
    • G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
    • G03G15/0266—Arrangements for controlling the amount of charge
    • 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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/065—Arrangements for controlling the potential of the developing electrode

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Electrophotography Using Other Than Carlson'S Method (AREA)
  • Printing Methods (AREA)
DE19772702920 1976-01-26 1977-01-25 Verfahren und geraet zur ausbildung eines bilds Granted DE2702920A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP774976A JPS5290942A (en) 1976-01-26 1976-01-26 Electrostatic printing

Publications (2)

Publication Number Publication Date
DE2702920A1 DE2702920A1 (de) 1977-07-28
DE2702920C2 true DE2702920C2 (OSRAM) 1987-10-01

Family

ID=11674334

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772702920 Granted DE2702920A1 (de) 1976-01-26 1977-01-25 Verfahren und geraet zur ausbildung eines bilds

Country Status (3)

Country Link
US (1) US4734740A (OSRAM)
JP (1) JPS5290942A (OSRAM)
DE (1) DE2702920A1 (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870460A (en) * 1986-12-05 1989-09-26 Ricoh Company, Ltd. Method of controlling surface potential of photoconductive element
US4924263A (en) * 1989-04-10 1990-05-08 Xerox Corporation Quality control for magnetic images
JP3145035B2 (ja) * 1996-09-09 2001-03-12 株式会社東芝 画像形成装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438705A (en) * 1967-01-03 1969-04-15 Xerox Corp Automatic xerographic development control
US4003650A (en) * 1974-11-05 1977-01-18 Xerox Corporation Controller for reproduction apparatus
US3918971A (en) * 1971-04-19 1975-11-11 Pitney Bowes Inc Method for creating multiple electrostatic copies by persistent conductivity
US3788739A (en) * 1972-06-21 1974-01-29 Xerox Corp Image compensation method and apparatus for electrophotographic devices
US3782818A (en) * 1972-11-17 1974-01-01 Savin Business Machines Corp System for reducing background developer deposition in an electrostatic copier
US3877413A (en) * 1973-06-18 1975-04-15 Eastman Kodak Co Auto bias control apparatus
US4050806A (en) * 1974-05-10 1977-09-27 Ricoh Co., Ltd. Method and apparatus for electrically biasing developing electrode of electrophotographic device
US4069759A (en) * 1974-07-27 1978-01-24 Canon Kabushiki Kaisha Light and heat formation of conductive image printing plate
JPS5441502B2 (OSRAM) * 1974-10-21 1979-12-08
US4000944A (en) * 1975-02-18 1977-01-04 Xerox Corporation Photoreceptor for electrostatic reproduction machines with built-in electrode
US4032227A (en) * 1976-01-15 1977-06-28 International Business Machines Corporation Toner concentration control apparatus

Also Published As

Publication number Publication date
US4734740A (en) 1988-03-29
DE2702920A1 (de) 1977-07-28
JPS5290942A (en) 1977-07-30

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition