FR2371001A1 - Procede electrophotographique et dispositif pour le developpement des images de potentiel electrostatiques latentes - Google Patents

Procede electrophotographique et dispositif pour le developpement des images de potentiel electrostatiques latentes

Info

Publication number
FR2371001A1
FR2371001A1 FR7733692A FR7733692A FR2371001A1 FR 2371001 A1 FR2371001 A1 FR 2371001A1 FR 7733692 A FR7733692 A FR 7733692A FR 7733692 A FR7733692 A FR 7733692A FR 2371001 A1 FR2371001 A1 FR 2371001A1
Authority
FR
France
Prior art keywords
latent electrostatic
electrophotographic process
developer mixture
electrostatic potential
potential images
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.)
Granted
Application number
FR7733692A
Other languages
English (en)
Other versions
FR2371001B1 (fr
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of FR2371001A1 publication Critical patent/FR2371001A1/fr
Application granted granted Critical
Publication of FR2371001B1 publication Critical patent/FR2371001B1/fr
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
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G03G15/0907—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush with bias voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)

Abstract

Procédé électrophotographique pour le développement des images de potentiel électrostatiques latentes sur un support d'images, à l'aide d'un mélange révélateur, bon conducteur électrique et composé de toner et de matériel porteur, caractérisé en ce que le potentiel du mélange révélateur, ainsi que l'échange de la charge qui s'établit entre le mélange révélateur et le support de l'image et qui est nécessaire au développement de l'image, sont maintenus à un niveau constant indépendamment de la variation de la conductivité du mélange revélateur, pendant tout le processus de l'application du toner sur les images de potentiel.
FR7733692A 1976-11-12 1977-11-09 Procede electrophotographique et dispositif pour le developpement des images de potentiel electrostatiques latentes Granted FR2371001A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2651646A DE2651646C3 (de) 1976-11-12 1976-11-12 Vorrichtung zum Entwickeln von latenten elektrostatischen Ladungsbildern

Publications (2)

Publication Number Publication Date
FR2371001A1 true FR2371001A1 (fr) 1978-06-09
FR2371001B1 FR2371001B1 (fr) 1983-05-06

Family

ID=5993013

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7733692A Granted FR2371001A1 (fr) 1976-11-12 1977-11-09 Procede electrophotographique et dispositif pour le developpement des images de potentiel electrostatiques latentes

Country Status (10)

Country Link
US (1) US4194466A (fr)
JP (1) JPS5362529A (fr)
AT (1) AT353607B (fr)
BE (1) BE860659A (fr)
CA (1) CA1107951A (fr)
DE (1) DE2651646C3 (fr)
FR (1) FR2371001A1 (fr)
GB (1) GB1591453A (fr)
IT (1) IT1090684B (fr)
NL (1) NL185874C (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55134863A (en) * 1979-04-06 1980-10-21 Canon Inc Electrophotographic developing method
US4526850A (en) * 1983-06-27 1985-07-02 Photon Chroma, Inc. Diode bias electrophotographic toning system and method
JPH0588556A (ja) * 1991-09-26 1993-04-09 Hitachi Ltd 現像間隙設定方法，現像間隙設定装置，現像間隙自動設定装置及び電子写真装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2033870A5 (fr) * 1969-03-20 1970-12-04 Ibm
FR2169326A1 (fr) * 1972-01-28 1973-09-07 Addressograph Multigraph
FR2235406A1 (fr) * 1973-06-28 1975-01-24 Xerox Corp
US3950089A (en) * 1975-02-24 1976-04-13 Xerox Corporation Coated roll for magnetic brush development and cleaning systems
US3981267A (en) * 1975-05-20 1976-09-21 Savin Business Machines Corporation Electrophotographic liquid developing system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117884A (en) * 1955-03-23 1964-01-14 Rca Corp Electrostatic printing process and apparatus
US3037478A (en) * 1957-10-23 1962-06-05 American Photocopy Equip Co Apparatus for developing electrophotographic sheet
US3592675A (en) * 1967-10-09 1971-07-13 Azoplate Corp Method for developing latent electrostatic images
BE755061A (fr) * 1969-08-27 1971-02-01 Fuji Photo Film Co Ltd Procede et appareillage pour developper une image latente electrostatique
BE792643A (fr) * 1971-12-17 1973-03-30 Ibm Dispositif de developpement electrophotographique
JPS5334050B2 (fr) * 1973-08-27 1978-09-19
JPS516730A (ja) * 1974-07-09 1976-01-20 Konishiroku Photo Ind Denshishashinfukushahoniokeru genzohoho

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2033870A5 (fr) * 1969-03-20 1970-12-04 Ibm
FR2169326A1 (fr) * 1972-01-28 1973-09-07 Addressograph Multigraph
FR2235406A1 (fr) * 1973-06-28 1975-01-24 Xerox Corp
US3950089A (en) * 1975-02-24 1976-04-13 Xerox Corporation Coated roll for magnetic brush development and cleaning systems
US3981267A (en) * 1975-05-20 1976-09-21 Savin Business Machines Corporation Electrophotographic liquid developing system

Also Published As

Publication number Publication date
JPS5362529A (en) 1978-06-05
DE2651646C3 (de) 1984-01-05
FR2371001B1 (fr) 1983-05-06
NL185874C (nl) 1990-08-01
CA1107951A (fr) 1981-09-01
JPH0340390B2 (fr) 1991-06-18
DE2651646A1 (de) 1978-09-07
BE860659A (fr) 1978-05-09
GB1591453A (en) 1981-06-24
ATA804577A (de) 1979-04-15
IT1090684B (it) 1985-06-26
AT353607B (de) 1979-11-26
US4194466A (en) 1980-03-25
DE2651646B2 (de) 1980-04-30
NL7712348A (nl) 1978-05-17

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Legal Events

Date Code Title Description
ST Notification of lapse