JPS5664352A - Magnetic developer - Google Patents

Magnetic developer

Info

Publication number
JPS5664352A
JPS5664352A JP14078679A JP14078679A JPS5664352A JP S5664352 A JPS5664352 A JP S5664352A JP 14078679 A JP14078679 A JP 14078679A JP 14078679 A JP14078679 A JP 14078679A JP S5664352 A JPS5664352 A JP S5664352A
Authority
JP
Japan
Prior art keywords
toner
finely divided
resin particles
chargeable
magnetic toner
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
JP14078679A
Other languages
Japanese (ja)
Inventor
Shigeo Kato
Tetsuo Hasegawa
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.)
Canon Inc
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP14078679A priority Critical patent/JPS5664352A/en
Publication of JPS5664352A publication Critical patent/JPS5664352A/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

Landscapes

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

Abstract

PURPOSE:To obtain a magnetic toner stabilized in polarity of toner, long in service life, and superior in fluidity, by mixing an insulating magnetic toner with finely divided resin particles chargeable to a polarity reverse to that of the toner. CONSTITUTION:An insulating magnetic toner is mixed with finely divided resin particles chargeable to a polarity reverse to that of this toner. When a negatively charged toner is used, as positively chargeable resin particles, finely divided particles of polyvinyl alcohol, bentonite, styrene-dimenthylaminoethyl methacrylate copolymer, or the like are recommended. When the toner is used as a positively charged magnetic toner, as a negatively chargeable resin particles to be used, finely divided particles of polytetrafluoroethylene, polyethylene, styrene-maleicanhydride copolymer, or the like is recommended.
JP14078679A 1979-10-30 1979-10-30 Magnetic developer Pending JPS5664352A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14078679A JPS5664352A (en) 1979-10-30 1979-10-30 Magnetic developer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14078679A JPS5664352A (en) 1979-10-30 1979-10-30 Magnetic developer

Publications (1)

Publication Number Publication Date
JPS5664352A true JPS5664352A (en) 1981-06-01

Family

ID=15276701

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14078679A Pending JPS5664352A (en) 1979-10-30 1979-10-30 Magnetic developer

Country Status (1)

Country Link
JP (1) JPS5664352A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6159452A (en) * 1984-08-31 1986-03-26 Canon Inc Positive-chargeable toner for electrophotography
JPS6327853A (en) * 1986-07-21 1988-02-05 Sharp Corp Toner for electrophotography
JPS6327854A (en) * 1986-07-21 1988-02-05 Sharp Corp Toner for electrophotography
JPS63104064A (en) * 1986-10-22 1988-05-09 Sharp Corp Toner for electrophotography
JPS63294570A (en) * 1987-05-27 1988-12-01 Canon Inc Positive chargeable one-component magnetic developer
EP0466149A1 (en) 1990-07-12 1992-01-15 Canon Kabushiki Kaisha Toner, developer, and image forming method
US5139914A (en) * 1989-07-28 1992-08-18 Canon Kabushiki Kaisha Developer for developing electrostatic images and image forming apparatus
US5604071A (en) * 1991-07-16 1997-02-18 Canon Kabushiki Kaisha Toner for developing electrostatic image
US5635326A (en) * 1994-02-10 1997-06-03 Canon Kabushiki Kaisha Electrostatic image-developing toner, fine powdery titanium oxide, and hydrophobic fine powdery titanium oxide
US5752151A (en) * 1994-12-27 1998-05-12 Canon Kabushiki Kaisha Image forming apparatus having a cleaning blade with a tensile strength from 80 to 120 kg/cm2
US5853938A (en) * 1991-01-11 1998-12-29 Canon Kabushiki Kaisha Toner for developing electrostatic image
US5885742A (en) * 1993-10-15 1999-03-23 Canon Kabushiki Kaisha Carrier for electrophotography, two-component type developer, and image forming method
US5922500A (en) * 1996-11-19 1999-07-13 Canon Kabushiki Kaisha Toner for developing electrostatic image

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6159452A (en) * 1984-08-31 1986-03-26 Canon Inc Positive-chargeable toner for electrophotography
JPS6327853A (en) * 1986-07-21 1988-02-05 Sharp Corp Toner for electrophotography
JPS6327854A (en) * 1986-07-21 1988-02-05 Sharp Corp Toner for electrophotography
JPS63104064A (en) * 1986-10-22 1988-05-09 Sharp Corp Toner for electrophotography
JPS63294570A (en) * 1987-05-27 1988-12-01 Canon Inc Positive chargeable one-component magnetic developer
US5139914A (en) * 1989-07-28 1992-08-18 Canon Kabushiki Kaisha Developer for developing electrostatic images and image forming apparatus
EP0466149A1 (en) 1990-07-12 1992-01-15 Canon Kabushiki Kaisha Toner, developer, and image forming method
US5620824A (en) * 1990-07-12 1997-04-15 Canon Kabushiki Kaisha Toner, developer and image forming method
US5853938A (en) * 1991-01-11 1998-12-29 Canon Kabushiki Kaisha Toner for developing electrostatic image
US5604071A (en) * 1991-07-16 1997-02-18 Canon Kabushiki Kaisha Toner for developing electrostatic image
US5885742A (en) * 1993-10-15 1999-03-23 Canon Kabushiki Kaisha Carrier for electrophotography, two-component type developer, and image forming method
US5635326A (en) * 1994-02-10 1997-06-03 Canon Kabushiki Kaisha Electrostatic image-developing toner, fine powdery titanium oxide, and hydrophobic fine powdery titanium oxide
US5752151A (en) * 1994-12-27 1998-05-12 Canon Kabushiki Kaisha Image forming apparatus having a cleaning blade with a tensile strength from 80 to 120 kg/cm2
US5922500A (en) * 1996-11-19 1999-07-13 Canon Kabushiki Kaisha Toner for developing electrostatic image

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