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JPS56110964A - Developing device - Google Patents

Developing device

Info

Publication number
JPS56110964A
JPS56110964A JP1242780A JP1242780A JPS56110964A JP S56110964 A JPS56110964 A JP S56110964A JP 1242780 A JP1242780 A JP 1242780A JP 1242780 A JP1242780 A JP 1242780A JP S56110964 A JPS56110964 A JP S56110964A
Authority
JP
Japan
Prior art keywords
roller
toner
developing roller
voltage
carrier
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
JP1242780A
Other languages
Japanese (ja)
Other versions
JPH0321906B2 (en
Inventor
Mitsuaki Kamiyama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1242780A priority Critical patent/JPS56110964A/en
Publication of JPS56110964A publication Critical patent/JPS56110964A/en
Publication of JPH0321906B2 publication Critical patent/JPH0321906B2/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
    • G03G15/065—Arrangements for controlling the potential of the developing electrode

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 improve the sticking of nonmagnetic carrierless toner to a photoreceptor latent image, by applying an AC voltage to a developing roller. CONSTITUTION:The 1st carrier roller 15, the 2nd carrier roller 16 and developing roller 13 of developing device 10 are in slide contact and rotated as shown by arrow (u) while generating friction; the 2nd carrier roller is applied with a voltage of about 150V by DC power source 18, and the developing roller with a superposed voltage of about 200V by AC power source 20. Toner is supplied by the 1st and 2nd carrier rollers from a toner supplier to the developing roller while charged by friction. The developing roller, applied with the AC voltage, vibrates the toner to accelerate the frictional charge and the toner is made easy to come off the roller. The carrier rollers consist of electrically conductive fur brushes, and the developing roller may have either the electrically conductive fur brush or a lubricious surface.
JP1242780A 1980-02-06 1980-02-06 Developing device Granted JPS56110964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1242780A JPS56110964A (en) 1980-02-06 1980-02-06 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1242780A JPS56110964A (en) 1980-02-06 1980-02-06 Developing device

Publications (2)

Publication Number Publication Date
JPS56110964A true JPS56110964A (en) 1981-09-02
JPH0321906B2 JPH0321906B2 (en) 1991-03-25

Family

ID=11804977

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1242780A Granted JPS56110964A (en) 1980-02-06 1980-02-06 Developing device

Country Status (1)

Country Link
JP (1) JPS56110964A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919965A (en) * 1982-07-27 1984-02-01 Konishiroku Photo Ind Co Ltd Developing device
WO2013179756A1 (en) * 2012-05-29 2013-12-05 ブラザー工業株式会社 Image-development apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1458766A (en) * 1973-02-15 1976-12-15 Xerox Corp Xerographic developing apparatus
JPS54115245A (en) * 1978-02-28 1979-09-07 Ricoh Co Ltd Developing device of electrostatic latent images

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1458766A (en) * 1973-02-15 1976-12-15 Xerox Corp Xerographic developing apparatus
JPS54115245A (en) * 1978-02-28 1979-09-07 Ricoh Co Ltd Developing device of electrostatic latent images

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5919965A (en) * 1982-07-27 1984-02-01 Konishiroku Photo Ind Co Ltd Developing device
WO2013179756A1 (en) * 2012-05-29 2013-12-05 ブラザー工業株式会社 Image-development apparatus

Also Published As

Publication number Publication date
JPH0321906B2 (en) 1991-03-25

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