JPS6462667A - Developer for electrophotography - Google Patents

Developer for electrophotography

Info

Publication number
JPS6462667A
JPS6462667A JP62219047A JP21904787A JPS6462667A JP S6462667 A JPS6462667 A JP S6462667A JP 62219047 A JP62219047 A JP 62219047A JP 21904787 A JP21904787 A JP 21904787A JP S6462667 A JPS6462667 A JP S6462667A
Authority
JP
Japan
Prior art keywords
particles
tio2
toner
carrier
developer
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
JP62219047A
Other languages
Japanese (ja)
Inventor
Toshiaki Murofushi
Yasuhiro Oya
Hiroshi Nakazawa
Koichi Oyamada
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP62219047A priority Critical patent/JPS6462667A/en
Publication of JPS6462667A publication Critical patent/JPS6462667A/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
    • G03G9/097—Plasticisers; Charge controlling agents
    • G03G9/09708—Inorganic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE:To obtain a developer having long life causing no scattering of toner, no fog, nor decrease of density of developed picture image by sticking fine powder of TiO2 to the surface of toner particles which are charged positively against carrier particles. CONSTITUTION:The title developer is constituted of a material which charges toner particles positively against carrier particles, and fine TiO2 particles are deposited to the surface of the toner particles. Particles having 0.02-0.04mum mean particle size are used for the TiO2 fine particles. The material for the toner is one being charged positively against the carrier before the deposition of TiO2 and being also charged positively against the carrier after the deposition of TiO2. Preferred carrier is one obtd. by dispersing magnetic powder in a resin having 30-80mum particle size. By this constitution, a developer having long life at high temp. and under high humidity is obtd. because of generation of less toner cloud and scarce fog, permitting copy of many sheets of picture image of satisfactory picture quality.
JP62219047A 1987-09-03 1987-09-03 Developer for electrophotography Pending JPS6462667A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62219047A JPS6462667A (en) 1987-09-03 1987-09-03 Developer for electrophotography

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62219047A JPS6462667A (en) 1987-09-03 1987-09-03 Developer for electrophotography

Publications (1)

Publication Number Publication Date
JPS6462667A true JPS6462667A (en) 1989-03-09

Family

ID=16729426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62219047A Pending JPS6462667A (en) 1987-09-03 1987-09-03 Developer for electrophotography

Country Status (1)

Country Link
JP (1) JPS6462667A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5212037A (en) * 1991-08-01 1993-05-18 Xerox Corporation Toner process with metal oxides
US5219696A (en) * 1990-11-30 1993-06-15 Minolta Camera Kabushiki Kaisha Toner for developing electrostatic latent image
US5228872A (en) * 1992-05-05 1993-07-20 Dan-Chief Enterprise Co., Ltd. Shielded IDC type modular jack adapter
JP2000034122A (en) * 1998-07-16 2000-02-02 Titan Kogyo Kk Ultrafine particle titanium dioxide, its production and its application
US6852460B2 (en) 2001-04-23 2005-02-08 Kyocera Corporation Toner and image forming method using the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5466134A (en) * 1977-11-05 1979-05-28 Minolta Camera Co Ltd Magnetic brush development method
JPS5468246A (en) * 1977-11-10 1979-06-01 Ricoh Co Ltd Electrostatographic developer
JPS57190957A (en) * 1981-05-20 1982-11-24 Nec Corp Electrophotographic developer
JPS6151330A (en) * 1984-08-22 1986-03-13 旭化成株式会社 Method of assembling pressure-resistant vessel made of paper
JPS61279865A (en) * 1985-06-06 1986-12-10 Canon Inc Positive charge developer
JPS62129861A (en) * 1985-11-30 1987-06-12 Konishiroku Photo Ind Co Ltd Positively electrifiable developer for developing electrostatic image

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5466134A (en) * 1977-11-05 1979-05-28 Minolta Camera Co Ltd Magnetic brush development method
JPS5468246A (en) * 1977-11-10 1979-06-01 Ricoh Co Ltd Electrostatographic developer
JPS57190957A (en) * 1981-05-20 1982-11-24 Nec Corp Electrophotographic developer
JPS6151330A (en) * 1984-08-22 1986-03-13 旭化成株式会社 Method of assembling pressure-resistant vessel made of paper
JPS61279865A (en) * 1985-06-06 1986-12-10 Canon Inc Positive charge developer
JPS62129861A (en) * 1985-11-30 1987-06-12 Konishiroku Photo Ind Co Ltd Positively electrifiable developer for developing electrostatic image

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5219696A (en) * 1990-11-30 1993-06-15 Minolta Camera Kabushiki Kaisha Toner for developing electrostatic latent image
US5212037A (en) * 1991-08-01 1993-05-18 Xerox Corporation Toner process with metal oxides
US5228872A (en) * 1992-05-05 1993-07-20 Dan-Chief Enterprise Co., Ltd. Shielded IDC type modular jack adapter
JP2000034122A (en) * 1998-07-16 2000-02-02 Titan Kogyo Kk Ultrafine particle titanium dioxide, its production and its application
US6852460B2 (en) 2001-04-23 2005-02-08 Kyocera Corporation Toner and image forming method using the same

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