JPS57178279A - Developing device - Google Patents

Developing device

Info

Publication number
JPS57178279A
JPS57178279A JP6252681A JP6252681A JPS57178279A JP S57178279 A JPS57178279 A JP S57178279A JP 6252681 A JP6252681 A JP 6252681A JP 6252681 A JP6252681 A JP 6252681A JP S57178279 A JPS57178279 A JP S57178279A
Authority
JP
Japan
Prior art keywords
electrodes
space
surface part
electrode pairs
charging
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
JP6252681A
Other languages
Japanese (ja)
Other versions
JPH0131611B2 (en
Inventor
Satoru Haneda
Masahiko Itaya
Makoto Tomono
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP6252681A priority Critical patent/JPS57178279A/en
Priority to US06/370,535 priority patent/US4431296A/en
Publication of JPS57178279A publication Critical patent/JPS57178279A/en
Publication of JPH0131611B2 publication Critical patent/JPH0131611B2/ja
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
    • G03G15/0803—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer in a powder cloud
    • 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)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Developing For Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To minimize an occupied space for a carrying body and to simplify a whole construction, by providing many electrode pairs constituted of the second electrodes which are located through the first electrodes and a space for charging on a surface part of a developing agent carrying body and forming AC electric field with the first and second electrodes in the charging space. CONSTITUTION:A developing drum 12 of toner carrying body, which is formed with the first electrodes 21A projected on an insulator supporting body layer 20 provided on a base body on its surface part and formed of many electrode pairs consisting of the second electrodes 21B through insulation materials 22, is constituted. AC electric source is connected between the first and second electrodes so that AC magnetic field is formed. Therefore, toner particles T supplied to a surface part of the drum 12 is vibrated as an arrow and charged with the action of AC electric field in the space for charging along a side of the insulation materials 22 between the first and second electrodes 21A and 21B consisting of electrode pairs. By this way, an occupied space is minimized and a whole construction is greatly simplified.
JP6252681A 1981-04-27 1981-04-27 Developing device Granted JPS57178279A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP6252681A JPS57178279A (en) 1981-04-27 1981-04-27 Developing device
US06/370,535 US4431296A (en) 1981-04-27 1982-04-21 Developing method and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6252681A JPS57178279A (en) 1981-04-27 1981-04-27 Developing device

Publications (2)

Publication Number Publication Date
JPS57178279A true JPS57178279A (en) 1982-11-02
JPH0131611B2 JPH0131611B2 (en) 1989-06-27

Family

ID=13202711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6252681A Granted JPS57178279A (en) 1981-04-27 1981-04-27 Developing device

Country Status (1)

Country Link
JP (1) JPS57178279A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59179361A (en) * 1983-03-31 1984-10-11 Toshiba Corp Recording apparatus
JPS59181372A (en) * 1983-03-31 1984-10-15 Toshiba Corp Developing device
JPS60107860U (en) * 1983-12-19 1985-07-22 京セラ株式会社 dry developing device
US4568955A (en) * 1983-03-31 1986-02-04 Tokyo Shibaura Denki Kabushiki Kaisha Recording apparatus using a toner-fog generated by electric fields applied to electrodes on the surface of the developer carrier
JPH0413164A (en) * 1990-05-02 1992-01-17 Ricoh Co Ltd Developing device
JP2009020209A (en) * 2007-07-10 2009-01-29 Ricoh Co Ltd Developing device, process cartridge, and image forming apparatus
JP2010164932A (en) * 2008-12-15 2010-07-29 Ricoh Co Ltd Developer bearing member, developing device, image forming apparatus, and process unit
JP2010262174A (en) * 2009-05-08 2010-11-18 Ricoh Co Ltd Developer carrier, developing device, and image forming apparatus
JP2011064719A (en) * 2009-09-15 2011-03-31 Ricoh Co Ltd Developing device, image forming apparatus and process unit

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59179361A (en) * 1983-03-31 1984-10-11 Toshiba Corp Recording apparatus
JPS59181372A (en) * 1983-03-31 1984-10-15 Toshiba Corp Developing device
US4568955A (en) * 1983-03-31 1986-02-04 Tokyo Shibaura Denki Kabushiki Kaisha Recording apparatus using a toner-fog generated by electric fields applied to electrodes on the surface of the developer carrier
JPH0446428B2 (en) * 1983-03-31 1992-07-29 Tokyo Shibaura Electric Co
JPS60107860U (en) * 1983-12-19 1985-07-22 京セラ株式会社 dry developing device
JPH041560Y2 (en) * 1983-12-19 1992-01-20
JPH0413164A (en) * 1990-05-02 1992-01-17 Ricoh Co Ltd Developing device
JP2009020209A (en) * 2007-07-10 2009-01-29 Ricoh Co Ltd Developing device, process cartridge, and image forming apparatus
JP2010164932A (en) * 2008-12-15 2010-07-29 Ricoh Co Ltd Developer bearing member, developing device, image forming apparatus, and process unit
JP2010262174A (en) * 2009-05-08 2010-11-18 Ricoh Co Ltd Developer carrier, developing device, and image forming apparatus
JP2011064719A (en) * 2009-09-15 2011-03-31 Ricoh Co Ltd Developing device, image forming apparatus and process unit

Also Published As

Publication number Publication date
JPH0131611B2 (en) 1989-06-27

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