JPS6444455A - Magnetic toner - Google Patents

Magnetic toner

Info

Publication number
JPS6444455A
JPS6444455A JP62200007A JP20000787A JPS6444455A JP S6444455 A JPS6444455 A JP S6444455A JP 62200007 A JP62200007 A JP 62200007A JP 20000787 A JP20000787 A JP 20000787A JP S6444455 A JPS6444455 A JP S6444455A
Authority
JP
Japan
Prior art keywords
particles
toner
adhering
constitution
requiring
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
JP62200007A
Other languages
Japanese (ja)
Inventor
Tetsuya Fujii
Izuru Matsui
Hiroaki Yoshikawa
Haruhide Ishida
Takeshi Saigawa
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 JP62200007A priority Critical patent/JPS6444455A/en
Publication of JPS6444455A publication Critical patent/JPS6444455A/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 exhibit stable development performance independent of the structure of a developing machine without requiring any triboelectrifying means by using a mixture of magnetic toner particles adhering to a large amount of external fine additive particles and particles adhering to a small amount of said particles. CONSTITUTION:The fine external additive particles 2 are allowed to adhere to toner particles composed of a binder resin and a magnetic powder. Each of said articles 2 has a particle diameter of <=1/10 the particle diameter of the toner and a volume resistivity of <=10<10>OMEGA.cm, and carbon black or metal oxides are used for said particles 2. The toner consists of the mixture composed of the particles adhering to a large amount of said particles 2 and those adhering to a small amount of them in a mixing ratio A/B of 3:97-25:75. Each material is properly arranged so that the toner B is charged to a polarity reverse to that of an electrostatic latent image and the particles 2 are charged to a polarity same as that of said images, thus permitting stable development performance to be exhibited, independent of the constitution of the developing machine, without requiring any triboelectrification device.
JP62200007A 1987-08-12 1987-08-12 Magnetic toner Pending JPS6444455A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62200007A JPS6444455A (en) 1987-08-12 1987-08-12 Magnetic toner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62200007A JPS6444455A (en) 1987-08-12 1987-08-12 Magnetic toner

Publications (1)

Publication Number Publication Date
JPS6444455A true JPS6444455A (en) 1989-02-16

Family

ID=16417242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62200007A Pending JPS6444455A (en) 1987-08-12 1987-08-12 Magnetic toner

Country Status (1)

Country Link
JP (1) JPS6444455A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03118551A (en) * 1989-10-02 1991-05-21 Tomoegawa Paper Co Ltd Developer for reversal development
JPH04260057A (en) * 1991-02-15 1992-09-16 Tomoegawa Paper Co Ltd Two-component developer for electrophotography

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03118551A (en) * 1989-10-02 1991-05-21 Tomoegawa Paper Co Ltd Developer for reversal development
JPH04260057A (en) * 1991-02-15 1992-09-16 Tomoegawa Paper Co Ltd Two-component developer for electrophotography

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