JPS56123552A - Developing powder - Google Patents

Developing powder

Info

Publication number
JPS56123552A
JPS56123552A JP2753580A JP2753580A JPS56123552A JP S56123552 A JPS56123552 A JP S56123552A JP 2753580 A JP2753580 A JP 2753580A JP 2753580 A JP2753580 A JP 2753580A JP S56123552 A JPS56123552 A JP S56123552A
Authority
JP
Japan
Prior art keywords
carrier
toner
particle diameter
magnetism sensitive
smaller
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.)
Pending
Application number
JP2753580A
Other languages
Japanese (ja)
Inventor
Yoshisuke Takekida
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2753580A priority Critical patent/JPS56123552A/en
Publication of JPS56123552A publication Critical patent/JPS56123552A/en
Pending 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
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/10—Developers with toner particles characterised by carrier particles
    • G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G9/00—Developers
    • G03G9/08—Developers with toner particles
    • G03G9/083—Magnetic toner particles

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To form a beautiful image of high resolution even on plain paper and almost capable of preventing background stain, by mixing fine magnetic powder toner having a magnetic material as a core substance, with a carrier having particle diameter distribution similar to or smaller than that of the toner. CONSTITUTION:A carrier is used having a particle diameter distribution similar to or smaller than that of a magnetism sensitive toner with a magnetic powder used as a core material. The carrier is made of a magnetic material or a nonmagntic material. The magnetism sensitive toner is used as a one-component type developer, and use of said carrier permits sufficient charge to be obtained. The toner particles have high fluidity even in a state of pulverized forms, so it is unnecessary to round the edges of particles pulverized. For example, when the particle diameter of the magnetism sensitive toner is 12-13mum, the carrier particle diameter is 4-8mum, and toner concentration is 8-26%, cleanability of a photosemiconductor is enhanced, and service life of the carrier is extended.
JP2753580A 1980-03-05 1980-03-05 Developing powder Pending JPS56123552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2753580A JPS56123552A (en) 1980-03-05 1980-03-05 Developing powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2753580A JPS56123552A (en) 1980-03-05 1980-03-05 Developing powder

Publications (1)

Publication Number Publication Date
JPS56123552A true JPS56123552A (en) 1981-09-28

Family

ID=12223791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2753580A Pending JPS56123552A (en) 1980-03-05 1980-03-05 Developing powder

Country Status (1)

Country Link
JP (1) JPS56123552A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984003955A1 (en) * 1983-04-01 1984-10-11 Hitachi Ltd Electrophotography method
JPH02143258A (en) * 1988-11-25 1990-06-01 Casio Electron Mfg Co Ltd Developer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984003955A1 (en) * 1983-04-01 1984-10-11 Hitachi Ltd Electrophotography method
JPH02143258A (en) * 1988-11-25 1990-06-01 Casio Electron Mfg Co Ltd Developer

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